./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:34:53,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:34:54,055 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:34:54,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:34:54,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:34:54,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:34:54,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:34:54,080 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:34:54,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:34:54,080 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:34:54,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:34:54,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:34:54,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:34:54,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:34:54,081 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:34:54,081 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:34:54,081 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:34:54,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:34:54,084 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:34:54,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:54,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:34:54,085 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 3bc77f08e5fdc1758b216096ce0b18debc22015dafe53c78389dc7da36650394 [2025-02-08 08:34:54,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:34:54,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:34:54,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:34:54,361 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:34:54,362 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:34:54,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-02-08 08:34:55,647 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91b87cc04/033a12a553f74e1ebef8698bcb9f9450/FLAG7b2b4ed59 [2025-02-08 08:34:55,917 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:34:55,917 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-symm.wvr.c [2025-02-08 08:34:55,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91b87cc04/033a12a553f74e1ebef8698bcb9f9450/FLAG7b2b4ed59 [2025-02-08 08:34:55,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/91b87cc04/033a12a553f74e1ebef8698bcb9f9450 [2025-02-08 08:34:55,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:34:55,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:34:55,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:55,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:34:55,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:34:55,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:55" (1/1) ... [2025-02-08 08:34:55,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b39d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:55, skipping insertion in model container [2025-02-08 08:34:55,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:55" (1/1) ... [2025-02-08 08:34:55,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:34:56,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:56,144 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:34:56,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:56,188 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:34:56,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56 WrapperNode [2025-02-08 08:34:56,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:56,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:56,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:34:56,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:34:56,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,229 INFO L138 Inliner]: procedures = 21, calls = 16, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 143 [2025-02-08 08:34:56,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:56,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:34:56,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:34:56,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:34:56,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,244 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,268 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]. [2025-02-08 08:34:56,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,275 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,286 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:34:56,287 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:34:56,287 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:34:56,287 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:34:56,288 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (1/1) ... [2025-02-08 08:34:56,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:56,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:34:56,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:34:56,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:34:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:34:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:34:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:34:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:34:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:34:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:34:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:34:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:34:56,359 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:34:56,456 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:34:56,458 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:34:56,590 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: #t~ite2#1 := #t~ret1#1; [2025-02-08 08:34:56,590 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 08:34:56,590 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:56,591 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-12: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:56,591 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-13: #t~ret1#1 := minus_#res#1; [2025-02-08 08:34:56,650 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: #t~ite7#1 := #t~ret6#1; [2025-02-08 08:34:56,651 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret6#1 && #t~ret6#1 <= 2147483647; [2025-02-08 08:34:56,651 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:56,651 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-12: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:56,651 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-13: #t~ret6#1 := minus_#res#1; [2025-02-08 08:34:56,738 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:34:56,739 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:34:57,024 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:34:57,024 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:34:57,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:57 BoogieIcfgContainer [2025-02-08 08:34:57,024 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:34:57,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:34:57,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:34:57,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:34:57,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:34:55" (1/3) ... [2025-02-08 08:34:57,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6487408a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:57, skipping insertion in model container [2025-02-08 08:34:57,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:56" (2/3) ... [2025-02-08 08:34:57,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6487408a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:57, skipping insertion in model container [2025-02-08 08:34:57,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:57" (3/3) ... [2025-02-08 08:34:57,036 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-symm.wvr.c [2025-02-08 08:34:57,050 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:34:57,051 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-symm.wvr.c that has 3 procedures, 33 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:34:57,051 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:34:57,107 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 08:34:57,140 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 38 transitions, 90 flow [2025-02-08 08:34:57,178 INFO L124 PetriNetUnfolderBase]: 6/36 cut-off events. [2025-02-08 08:34:57,179 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:34:57,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 6/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 70 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2025-02-08 08:34:57,183 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 38 transitions, 90 flow [2025-02-08 08:34:57,187 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 35 transitions, 82 flow [2025-02-08 08:34:57,196 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:34:57,210 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;@18abe9b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:34:57,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-08 08:34:57,246 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:34:57,246 INFO L124 PetriNetUnfolderBase]: 6/32 cut-off events. [2025-02-08 08:34:57,247 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:34:57,247 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:57,248 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:34:57,248 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:34:57,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:57,254 INFO L85 PathProgramCache]: Analyzing trace with hash -499590085, now seen corresponding path program 1 times [2025-02-08 08:34:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:57,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495257528] [2025-02-08 08:34:57,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:34:57,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:57,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:34:57,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:34:57,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:57,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:58,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:34:58,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:58,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495257528] [2025-02-08 08:34:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495257528] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:58,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:58,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:34:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392149741] [2025-02-08 08:34:58,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:58,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:58,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:58,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:58,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:58,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2025-02-08 08:34:58,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 35 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:58,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:58,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2025-02-08 08:34:58,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:58,628 INFO L124 PetriNetUnfolderBase]: 257/451 cut-off events. [2025-02-08 08:34:58,628 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2025-02-08 08:34:58,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 916 conditions, 451 events. 257/451 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2235 event pairs, 97 based on Foata normal form. 3/367 useless extension candidates. Maximal degree in co-relation 806. Up to 218 conditions per place. [2025-02-08 08:34:58,636 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 55 selfloop transitions, 8 changer transitions 20/92 dead transitions. [2025-02-08 08:34:58,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 92 transitions, 389 flow [2025-02-08 08:34:58,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:34:58,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:34:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 220 transitions. [2025-02-08 08:34:58,655 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5263157894736842 [2025-02-08 08:34:58,658 INFO L175 Difference]: Start difference. First operand has 36 places, 35 transitions, 82 flow. Second operand 11 states and 220 transitions. [2025-02-08 08:34:58,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 92 transitions, 389 flow [2025-02-08 08:34:58,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 92 transitions, 363 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:34:58,673 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 129 flow [2025-02-08 08:34:58,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=129, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2025-02-08 08:34:58,681 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 11 predicate places. [2025-02-08 08:34:58,682 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 129 flow [2025-02-08 08:34:58,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:58,682 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:58,682 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:34:58,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:34:58,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:34:58,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1664376597, now seen corresponding path program 2 times [2025-02-08 08:34:58,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:58,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065741965] [2025-02-08 08:34:58,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:34:58,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:58,698 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:34:58,715 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:34:58,715 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:34:58,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:34:59,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:59,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065741965] [2025-02-08 08:34:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065741965] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:59,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:34:59,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317444220] [2025-02-08 08:34:59,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:59,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:59,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:59,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:59,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:59,024 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2025-02-08 08:34:59,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 129 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:59,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:59,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2025-02-08 08:34:59,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:59,292 INFO L124 PetriNetUnfolderBase]: 282/494 cut-off events. [2025-02-08 08:34:59,292 INFO L125 PetriNetUnfolderBase]: For 289/292 co-relation queries the response was YES. [2025-02-08 08:34:59,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 494 events. 282/494 cut-off events. For 289/292 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2466 event pairs, 116 based on Foata normal form. 3/417 useless extension candidates. Maximal degree in co-relation 1225. Up to 252 conditions per place. [2025-02-08 08:34:59,300 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 45 selfloop transitions, 13 changer transitions 9/76 dead transitions. [2025-02-08 08:34:59,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 76 transitions, 386 flow [2025-02-08 08:34:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:34:59,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:34:59,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 149 transitions. [2025-02-08 08:34:59,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5601503759398496 [2025-02-08 08:34:59,303 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 129 flow. Second operand 7 states and 149 transitions. [2025-02-08 08:34:59,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 76 transitions, 386 flow [2025-02-08 08:34:59,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 76 transitions, 366 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-02-08 08:34:59,309 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 212 flow [2025-02-08 08:34:59,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=212, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2025-02-08 08:34:59,310 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2025-02-08 08:34:59,310 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 212 flow [2025-02-08 08:34:59,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:59,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:59,310 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:34:59,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:34:59,310 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:34:59,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:59,311 INFO L85 PathProgramCache]: Analyzing trace with hash -634507997, now seen corresponding path program 3 times [2025-02-08 08:34:59,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:59,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889663239] [2025-02-08 08:34:59,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:34:59,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:59,324 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 15 statements into 1 equivalence classes. [2025-02-08 08:34:59,337 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:34:59,337 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:34:59,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:34:59,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:59,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889663239] [2025-02-08 08:34:59,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889663239] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:59,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:59,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:34:59,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641813058] [2025-02-08 08:34:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:59,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:59,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:59,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:59,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:59,558 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2025-02-08 08:34:59,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:59,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:59,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2025-02-08 08:34:59,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:59,813 INFO L124 PetriNetUnfolderBase]: 278/487 cut-off events. [2025-02-08 08:34:59,814 INFO L125 PetriNetUnfolderBase]: For 448/454 co-relation queries the response was YES. [2025-02-08 08:34:59,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1390 conditions, 487 events. 278/487 cut-off events. For 448/454 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2435 event pairs, 115 based on Foata normal form. 5/427 useless extension candidates. Maximal degree in co-relation 1343. Up to 248 conditions per place. [2025-02-08 08:34:59,818 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 44 selfloop transitions, 10 changer transitions 10/73 dead transitions. [2025-02-08 08:34:59,819 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 73 transitions, 400 flow [2025-02-08 08:34:59,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:34:59,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:34:59,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 146 transitions. [2025-02-08 08:34:59,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5488721804511278 [2025-02-08 08:34:59,820 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 212 flow. Second operand 7 states and 146 transitions. [2025-02-08 08:34:59,821 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 73 transitions, 400 flow [2025-02-08 08:34:59,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 73 transitions, 392 flow, removed 4 selfloop flow, removed 1 redundant places. [2025-02-08 08:34:59,830 INFO L231 Difference]: Finished difference. Result has 53 places, 43 transitions, 207 flow [2025-02-08 08:34:59,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=207, PETRI_PLACES=53, PETRI_TRANSITIONS=43} [2025-02-08 08:34:59,832 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 17 predicate places. [2025-02-08 08:34:59,832 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 43 transitions, 207 flow [2025-02-08 08:34:59,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:34:59,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:59,833 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:34:59,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:34:59,833 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:34:59,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1391802323, now seen corresponding path program 4 times [2025-02-08 08:34:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:59,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967083745] [2025-02-08 08:34:59,835 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:34:59,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:59,845 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 15 statements into 2 equivalence classes. [2025-02-08 08:34:59,858 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 15 of 15 statements. [2025-02-08 08:34:59,860 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:34:59,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:00,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:00,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967083745] [2025-02-08 08:35:00,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967083745] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:00,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098729446] [2025-02-08 08:35:00,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:00,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:00,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:00,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:00,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:00,091 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2025-02-08 08:35:00,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 43 transitions, 207 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:35:00,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:00,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2025-02-08 08:35:00,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:00,330 INFO L124 PetriNetUnfolderBase]: 284/509 cut-off events. [2025-02-08 08:35:00,332 INFO L125 PetriNetUnfolderBase]: For 610/616 co-relation queries the response was YES. [2025-02-08 08:35:00,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1546 conditions, 509 events. 284/509 cut-off events. For 610/616 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2580 event pairs, 116 based on Foata normal form. 5/447 useless extension candidates. Maximal degree in co-relation 1433. Up to 243 conditions per place. [2025-02-08 08:35:00,335 INFO L140 encePairwiseOnDemand]: 32/38 looper letters, 54 selfloop transitions, 10 changer transitions 10/83 dead transitions. [2025-02-08 08:35:00,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 83 transitions, 456 flow [2025-02-08 08:35:00,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:00,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 168 transitions. [2025-02-08 08:35:00,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5526315789473685 [2025-02-08 08:35:00,338 INFO L175 Difference]: Start difference. First operand has 53 places, 43 transitions, 207 flow. Second operand 8 states and 168 transitions. [2025-02-08 08:35:00,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 83 transitions, 456 flow [2025-02-08 08:35:00,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 83 transitions, 416 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:00,346 INFO L231 Difference]: Finished difference. Result has 54 places, 43 transitions, 199 flow [2025-02-08 08:35:00,346 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=199, PETRI_PLACES=54, PETRI_TRANSITIONS=43} [2025-02-08 08:35:00,347 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2025-02-08 08:35:00,347 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 43 transitions, 199 flow [2025-02-08 08:35:00,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2025-02-08 08:35:00,348 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:00,348 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:00,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:35:00,348 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:00,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash 440058684, now seen corresponding path program 1 times [2025-02-08 08:35:00,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:00,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786391343] [2025-02-08 08:35:00,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:00,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:00,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:00,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:00,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:00,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:00,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:00,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786391343] [2025-02-08 08:35:00,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786391343] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:00,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:00,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:00,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895784573] [2025-02-08 08:35:00,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:00,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:00,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:00,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:00,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:00,551 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:00,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 43 transitions, 199 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:00,552 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:00,552 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:00,552 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:00,824 INFO L124 PetriNetUnfolderBase]: 309/543 cut-off events. [2025-02-08 08:35:00,824 INFO L125 PetriNetUnfolderBase]: For 695/695 co-relation queries the response was YES. [2025-02-08 08:35:00,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1548 conditions, 543 events. 309/543 cut-off events. For 695/695 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2688 event pairs, 194 based on Foata normal form. 1/476 useless extension candidates. Maximal degree in co-relation 1523. Up to 449 conditions per place. [2025-02-08 08:35:00,831 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 41 selfloop transitions, 11 changer transitions 9/69 dead transitions. [2025-02-08 08:35:00,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 69 transitions, 419 flow [2025-02-08 08:35:00,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:00,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 141 transitions. [2025-02-08 08:35:00,832 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46381578947368424 [2025-02-08 08:35:00,832 INFO L175 Difference]: Start difference. First operand has 54 places, 43 transitions, 199 flow. Second operand 8 states and 141 transitions. [2025-02-08 08:35:00,832 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 69 transitions, 419 flow [2025-02-08 08:35:00,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 69 transitions, 385 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:00,840 INFO L231 Difference]: Finished difference. Result has 59 places, 49 transitions, 256 flow [2025-02-08 08:35:00,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=256, PETRI_PLACES=59, PETRI_TRANSITIONS=49} [2025-02-08 08:35:00,843 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 23 predicate places. [2025-02-08 08:35:00,844 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 49 transitions, 256 flow [2025-02-08 08:35:00,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:00,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:00,845 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:00,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:35:00,845 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:00,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash -423096458, now seen corresponding path program 2 times [2025-02-08 08:35:00,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:00,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883790925] [2025-02-08 08:35:00,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:00,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:00,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:00,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:00,860 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:00,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:01,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:01,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:01,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883790925] [2025-02-08 08:35:01,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883790925] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:01,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:01,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:01,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537740841] [2025-02-08 08:35:01,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:01,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:01,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:01,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:01,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:01,050 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:01,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 49 transitions, 256 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:01,051 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:01,051 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:01,051 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:01,370 INFO L124 PetriNetUnfolderBase]: 280/496 cut-off events. [2025-02-08 08:35:01,372 INFO L125 PetriNetUnfolderBase]: For 643/643 co-relation queries the response was YES. [2025-02-08 08:35:01,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1495 conditions, 496 events. 280/496 cut-off events. For 643/643 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2392 event pairs, 142 based on Foata normal form. 1/456 useless extension candidates. Maximal degree in co-relation 1466. Up to 330 conditions per place. [2025-02-08 08:35:01,377 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 52 selfloop transitions, 7 changer transitions 17/84 dead transitions. [2025-02-08 08:35:01,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 84 transitions, 519 flow [2025-02-08 08:35:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2025-02-08 08:35:01,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4967105263157895 [2025-02-08 08:35:01,380 INFO L175 Difference]: Start difference. First operand has 59 places, 49 transitions, 256 flow. Second operand 8 states and 151 transitions. [2025-02-08 08:35:01,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 84 transitions, 519 flow [2025-02-08 08:35:01,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 84 transitions, 502 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-02-08 08:35:01,387 INFO L231 Difference]: Finished difference. Result has 65 places, 49 transitions, 274 flow [2025-02-08 08:35:01,387 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=274, PETRI_PLACES=65, PETRI_TRANSITIONS=49} [2025-02-08 08:35:01,388 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 29 predicate places. [2025-02-08 08:35:01,388 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 49 transitions, 274 flow [2025-02-08 08:35:01,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:01,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:01,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:01,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:35:01,389 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:01,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:01,389 INFO L85 PathProgramCache]: Analyzing trace with hash 930955392, now seen corresponding path program 3 times [2025-02-08 08:35:01,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:01,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086953999] [2025-02-08 08:35:01,390 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:01,397 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:01,402 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:01,402 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:01,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:01,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:01,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:01,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086953999] [2025-02-08 08:35:01,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086953999] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:01,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:01,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:01,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524770908] [2025-02-08 08:35:01,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:01,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:01,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:01,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:01,557 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:01,558 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 49 transitions, 274 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:01,558 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:01,558 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:01,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:01,872 INFO L124 PetriNetUnfolderBase]: 319/611 cut-off events. [2025-02-08 08:35:01,873 INFO L125 PetriNetUnfolderBase]: For 1260/1270 co-relation queries the response was YES. [2025-02-08 08:35:01,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 611 events. 319/611 cut-off events. For 1260/1270 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3034 event pairs, 64 based on Foata normal form. 29/615 useless extension candidates. Maximal degree in co-relation 1921. Up to 373 conditions per place. [2025-02-08 08:35:01,879 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 63 selfloop transitions, 13 changer transitions 9/93 dead transitions. [2025-02-08 08:35:01,880 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 93 transitions, 682 flow [2025-02-08 08:35:01,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:01,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 156 transitions. [2025-02-08 08:35:01,881 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5131578947368421 [2025-02-08 08:35:01,881 INFO L175 Difference]: Start difference. First operand has 65 places, 49 transitions, 274 flow. Second operand 8 states and 156 transitions. [2025-02-08 08:35:01,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 93 transitions, 682 flow [2025-02-08 08:35:01,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 93 transitions, 647 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:01,892 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 394 flow [2025-02-08 08:35:01,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=394, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2025-02-08 08:35:01,894 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 33 predicate places. [2025-02-08 08:35:01,896 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 394 flow [2025-02-08 08:35:01,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:01,896 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:01,896 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:01,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:35:01,897 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:01,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:01,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2076140414, now seen corresponding path program 4 times [2025-02-08 08:35:01,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:01,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921421832] [2025-02-08 08:35:01,897 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:01,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:01,903 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:35:01,907 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:01,907 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:01,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:02,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:02,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:02,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921421832] [2025-02-08 08:35:02,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921421832] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:02,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:02,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:02,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990269889] [2025-02-08 08:35:02,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:02,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:02,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:02,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:02,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:02,057 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:02,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 394 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:02,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:02,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:02,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:02,239 INFO L124 PetriNetUnfolderBase]: 288/558 cut-off events. [2025-02-08 08:35:02,239 INFO L125 PetriNetUnfolderBase]: For 1393/1393 co-relation queries the response was YES. [2025-02-08 08:35:02,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2066 conditions, 558 events. 288/558 cut-off events. For 1393/1393 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2751 event pairs, 157 based on Foata normal form. 1/537 useless extension candidates. Maximal degree in co-relation 2024. Up to 429 conditions per place. [2025-02-08 08:35:02,244 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 55 selfloop transitions, 8 changer transitions 11/82 dead transitions. [2025-02-08 08:35:02,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 82 transitions, 657 flow [2025-02-08 08:35:02,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2025-02-08 08:35:02,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2025-02-08 08:35:02,246 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 394 flow. Second operand 8 states and 144 transitions. [2025-02-08 08:35:02,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 82 transitions, 657 flow [2025-02-08 08:35:02,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 82 transitions, 637 flow, removed 10 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:02,253 INFO L231 Difference]: Finished difference. Result has 75 places, 55 transitions, 396 flow [2025-02-08 08:35:02,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=396, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2025-02-08 08:35:02,253 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 39 predicate places. [2025-02-08 08:35:02,253 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 55 transitions, 396 flow [2025-02-08 08:35:02,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:02,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:02,254 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:02,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:35:02,254 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:02,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:02,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1094306928, now seen corresponding path program 5 times [2025-02-08 08:35:02,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355863888] [2025-02-08 08:35:02,255 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:02,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:02,260 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:02,264 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:02,264 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:02,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:02,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:02,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355863888] [2025-02-08 08:35:02,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355863888] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:02,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:02,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:02,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409787243] [2025-02-08 08:35:02,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:02,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:02,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:02,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:02,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:02,380 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:02,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 55 transitions, 396 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:02,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:02,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:02,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:02,657 INFO L124 PetriNetUnfolderBase]: 294/583 cut-off events. [2025-02-08 08:35:02,658 INFO L125 PetriNetUnfolderBase]: For 1680/1690 co-relation queries the response was YES. [2025-02-08 08:35:02,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2162 conditions, 583 events. 294/583 cut-off events. For 1680/1690 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 2902 event pairs, 48 based on Foata normal form. 4/580 useless extension candidates. Maximal degree in co-relation 2117. Up to 337 conditions per place. [2025-02-08 08:35:02,664 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 67 selfloop transitions, 8 changer transitions 11/94 dead transitions. [2025-02-08 08:35:02,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 94 transitions, 764 flow [2025-02-08 08:35:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2025-02-08 08:35:02,666 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4967105263157895 [2025-02-08 08:35:02,666 INFO L175 Difference]: Start difference. First operand has 75 places, 55 transitions, 396 flow. Second operand 8 states and 151 transitions. [2025-02-08 08:35:02,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 94 transitions, 764 flow [2025-02-08 08:35:02,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 94 transitions, 718 flow, removed 13 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:02,674 INFO L231 Difference]: Finished difference. Result has 77 places, 56 transitions, 418 flow [2025-02-08 08:35:02,675 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=418, PETRI_PLACES=77, PETRI_TRANSITIONS=56} [2025-02-08 08:35:02,675 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 41 predicate places. [2025-02-08 08:35:02,676 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 56 transitions, 418 flow [2025-02-08 08:35:02,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:02,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:02,676 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:02,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:35:02,677 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:02,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:02,677 INFO L85 PathProgramCache]: Analyzing trace with hash -639120086, now seen corresponding path program 6 times [2025-02-08 08:35:02,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:02,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91562091] [2025-02-08 08:35:02,677 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:02,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:02,684 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:02,688 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:02,688 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:02,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:02,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:02,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:02,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91562091] [2025-02-08 08:35:02,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91562091] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:02,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:02,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:02,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761953668] [2025-02-08 08:35:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:02,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:02,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:02,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:02,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:02,830 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:02,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 56 transitions, 418 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:02,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:02,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:02,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:03,064 INFO L124 PetriNetUnfolderBase]: 274/529 cut-off events. [2025-02-08 08:35:03,064 INFO L125 PetriNetUnfolderBase]: For 1730/1730 co-relation queries the response was YES. [2025-02-08 08:35:03,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2017 conditions, 529 events. 274/529 cut-off events. For 1730/1730 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2593 event pairs, 150 based on Foata normal form. 1/508 useless extension candidates. Maximal degree in co-relation 1971. Up to 424 conditions per place. [2025-02-08 08:35:03,068 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 48 selfloop transitions, 10 changer transitions 10/76 dead transitions. [2025-02-08 08:35:03,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 76 transitions, 635 flow [2025-02-08 08:35:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:03,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:03,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2025-02-08 08:35:03,071 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45723684210526316 [2025-02-08 08:35:03,071 INFO L175 Difference]: Start difference. First operand has 77 places, 56 transitions, 418 flow. Second operand 8 states and 139 transitions. [2025-02-08 08:35:03,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 76 transitions, 635 flow [2025-02-08 08:35:03,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 608 flow, removed 10 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:03,077 INFO L231 Difference]: Finished difference. Result has 79 places, 55 transitions, 411 flow [2025-02-08 08:35:03,077 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=411, PETRI_PLACES=79, PETRI_TRANSITIONS=55} [2025-02-08 08:35:03,078 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 43 predicate places. [2025-02-08 08:35:03,078 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 55 transitions, 411 flow [2025-02-08 08:35:03,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:03,078 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:03,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:35:03,078 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:03,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:03,079 INFO L85 PathProgramCache]: Analyzing trace with hash -225549476, now seen corresponding path program 7 times [2025-02-08 08:35:03,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:03,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512756387] [2025-02-08 08:35:03,079 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:03,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:03,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:03,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:03,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:03,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:03,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:03,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512756387] [2025-02-08 08:35:03,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512756387] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:03,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:03,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:03,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649311944] [2025-02-08 08:35:03,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:03,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:03,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:03,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:03,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:03,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 55 transitions, 411 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:03,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:03,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:03,451 INFO L124 PetriNetUnfolderBase]: 269/512 cut-off events. [2025-02-08 08:35:03,451 INFO L125 PetriNetUnfolderBase]: For 1551/1551 co-relation queries the response was YES. [2025-02-08 08:35:03,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1960 conditions, 512 events. 269/512 cut-off events. For 1551/1551 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2469 event pairs, 149 based on Foata normal form. 1/491 useless extension candidates. Maximal degree in co-relation 1919. Up to 418 conditions per place. [2025-02-08 08:35:03,456 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 43 selfloop transitions, 5 changer transitions 15/71 dead transitions. [2025-02-08 08:35:03,456 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 71 transitions, 590 flow [2025-02-08 08:35:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:03,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:03,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 134 transitions. [2025-02-08 08:35:03,457 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:35:03,458 INFO L175 Difference]: Start difference. First operand has 79 places, 55 transitions, 411 flow. Second operand 8 states and 134 transitions. [2025-02-08 08:35:03,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 71 transitions, 590 flow [2025-02-08 08:35:03,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 71 transitions, 562 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:03,464 INFO L231 Difference]: Finished difference. Result has 77 places, 49 transitions, 327 flow [2025-02-08 08:35:03,464 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=385, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=327, PETRI_PLACES=77, PETRI_TRANSITIONS=49} [2025-02-08 08:35:03,465 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 41 predicate places. [2025-02-08 08:35:03,465 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 49 transitions, 327 flow [2025-02-08 08:35:03,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:03,465 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:03,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:35:03,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:03,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:03,466 INFO L85 PathProgramCache]: Analyzing trace with hash -49378610, now seen corresponding path program 1 times [2025-02-08 08:35:03,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:03,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924708195] [2025-02-08 08:35:03,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:03,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:03,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:03,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:03,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:03,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:03,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:03,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:03,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924708195] [2025-02-08 08:35:03,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924708195] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:03,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:03,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:03,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812410260] [2025-02-08 08:35:03,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:03,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:03,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:03,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:03,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:03,586 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:03,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 49 transitions, 327 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:03,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:03,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:03,816 INFO L124 PetriNetUnfolderBase]: 262/539 cut-off events. [2025-02-08 08:35:03,816 INFO L125 PetriNetUnfolderBase]: For 1471/1472 co-relation queries the response was YES. [2025-02-08 08:35:03,818 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 539 events. 262/539 cut-off events. For 1471/1472 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2700 event pairs, 50 based on Foata normal form. 26/553 useless extension candidates. Maximal degree in co-relation 1719. Up to 322 conditions per place. [2025-02-08 08:35:03,821 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 59 selfloop transitions, 11 changer transitions 6/86 dead transitions. [2025-02-08 08:35:03,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 86 transitions, 659 flow [2025-02-08 08:35:03,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 150 transitions. [2025-02-08 08:35:03,822 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4934210526315789 [2025-02-08 08:35:03,822 INFO L175 Difference]: Start difference. First operand has 77 places, 49 transitions, 327 flow. Second operand 8 states and 150 transitions. [2025-02-08 08:35:03,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 86 transitions, 659 flow [2025-02-08 08:35:03,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 86 transitions, 601 flow, removed 12 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:03,828 INFO L231 Difference]: Finished difference. Result has 72 places, 57 transitions, 397 flow [2025-02-08 08:35:03,828 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=397, PETRI_PLACES=72, PETRI_TRANSITIONS=57} [2025-02-08 08:35:03,829 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 36 predicate places. [2025-02-08 08:35:03,829 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 57 transitions, 397 flow [2025-02-08 08:35:03,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,829 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:03,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:03,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:35:03,829 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:03,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:03,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1939806340, now seen corresponding path program 2 times [2025-02-08 08:35:03,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:03,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534770372] [2025-02-08 08:35:03,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:03,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:03,835 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:03,838 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:03,839 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:03,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:03,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:03,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534770372] [2025-02-08 08:35:03,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534770372] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:03,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:03,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595708678] [2025-02-08 08:35:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:03,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:03,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:03,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:03,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:03,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:03,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 57 transitions, 397 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:03,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:03,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:03,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:04,225 INFO L124 PetriNetUnfolderBase]: 270/550 cut-off events. [2025-02-08 08:35:04,225 INFO L125 PetriNetUnfolderBase]: For 1233/1244 co-relation queries the response was YES. [2025-02-08 08:35:04,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1915 conditions, 550 events. 270/550 cut-off events. For 1233/1244 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2740 event pairs, 143 based on Foata normal form. 1/522 useless extension candidates. Maximal degree in co-relation 1871. Up to 390 conditions per place. [2025-02-08 08:35:04,230 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 66 selfloop transitions, 7 changer transitions 8/91 dead transitions. [2025-02-08 08:35:04,230 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 91 transitions, 708 flow [2025-02-08 08:35:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:04,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2025-02-08 08:35:04,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48355263157894735 [2025-02-08 08:35:04,231 INFO L175 Difference]: Start difference. First operand has 72 places, 57 transitions, 397 flow. Second operand 8 states and 147 transitions. [2025-02-08 08:35:04,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 91 transitions, 708 flow [2025-02-08 08:35:04,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 91 transitions, 674 flow, removed 7 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:04,239 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 412 flow [2025-02-08 08:35:04,240 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=378, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=412, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2025-02-08 08:35:04,242 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 42 predicate places. [2025-02-08 08:35:04,242 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 412 flow [2025-02-08 08:35:04,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:04,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:04,242 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:04,242 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:35:04,242 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:04,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:04,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1902251544, now seen corresponding path program 3 times [2025-02-08 08:35:04,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:04,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462353104] [2025-02-08 08:35:04,243 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:04,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:04,249 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:04,258 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:04,258 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:04,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:04,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462353104] [2025-02-08 08:35:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462353104] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:04,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:04,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317317077] [2025-02-08 08:35:04,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:04,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:04,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:04,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:04,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:04,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:04,393 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 412 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:04,393 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:04,393 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:04,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:04,633 INFO L124 PetriNetUnfolderBase]: 274/579 cut-off events. [2025-02-08 08:35:04,633 INFO L125 PetriNetUnfolderBase]: For 1431/1436 co-relation queries the response was YES. [2025-02-08 08:35:04,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2009 conditions, 579 events. 274/579 cut-off events. For 1431/1436 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3038 event pairs, 49 based on Foata normal form. 5/574 useless extension candidates. Maximal degree in co-relation 1958. Up to 301 conditions per place. [2025-02-08 08:35:04,638 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 79 selfloop transitions, 11 changer transitions 7/107 dead transitions. [2025-02-08 08:35:04,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 107 transitions, 865 flow [2025-02-08 08:35:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:04,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:04,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 162 transitions. [2025-02-08 08:35:04,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5328947368421053 [2025-02-08 08:35:04,640 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 412 flow. Second operand 8 states and 162 transitions. [2025-02-08 08:35:04,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 107 transitions, 865 flow [2025-02-08 08:35:04,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 107 transitions, 835 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:04,649 INFO L231 Difference]: Finished difference. Result has 80 places, 58 transitions, 425 flow [2025-02-08 08:35:04,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=397, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=425, PETRI_PLACES=80, PETRI_TRANSITIONS=58} [2025-02-08 08:35:04,651 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 44 predicate places. [2025-02-08 08:35:04,651 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 58 transitions, 425 flow [2025-02-08 08:35:04,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:04,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:04,651 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:04,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 08:35:04,652 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:04,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:04,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1293275750, now seen corresponding path program 4 times [2025-02-08 08:35:04,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:04,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368782231] [2025-02-08 08:35:04,653 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:04,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:04,660 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:35:04,664 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:04,664 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:04,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:04,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:04,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:04,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368782231] [2025-02-08 08:35:04,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368782231] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:04,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:04,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:04,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723831656] [2025-02-08 08:35:04,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:04,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:04,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:04,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:04,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:04,800 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:04,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 58 transitions, 425 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:04,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:04,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:04,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:05,014 INFO L124 PetriNetUnfolderBase]: 292/622 cut-off events. [2025-02-08 08:35:05,015 INFO L125 PetriNetUnfolderBase]: For 1727/1738 co-relation queries the response was YES. [2025-02-08 08:35:05,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 622 events. 292/622 cut-off events. For 1727/1738 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3321 event pairs, 171 based on Foata normal form. 1/591 useless extension candidates. Maximal degree in co-relation 2199. Up to 478 conditions per place. [2025-02-08 08:35:05,021 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 63 selfloop transitions, 8 changer transitions 8/89 dead transitions. [2025-02-08 08:35:05,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 89 transitions, 777 flow [2025-02-08 08:35:05,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:05,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2025-02-08 08:35:05,023 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46710526315789475 [2025-02-08 08:35:05,023 INFO L175 Difference]: Start difference. First operand has 80 places, 58 transitions, 425 flow. Second operand 8 states and 142 transitions. [2025-02-08 08:35:05,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 89 transitions, 777 flow [2025-02-08 08:35:05,028 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 89 transitions, 749 flow, removed 4 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:05,030 INFO L231 Difference]: Finished difference. Result has 85 places, 61 transitions, 470 flow [2025-02-08 08:35:05,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=470, PETRI_PLACES=85, PETRI_TRANSITIONS=61} [2025-02-08 08:35:05,031 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 49 predicate places. [2025-02-08 08:35:05,031 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 61 transitions, 470 flow [2025-02-08 08:35:05,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,032 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:05,032 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:05,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 08:35:05,032 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:05,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1657317950, now seen corresponding path program 5 times [2025-02-08 08:35:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042767247] [2025-02-08 08:35:05,033 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:05,038 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:05,044 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:05,045 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:05,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:05,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:05,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:05,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042767247] [2025-02-08 08:35:05,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042767247] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:05,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:05,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833181855] [2025-02-08 08:35:05,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:05,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:05,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:05,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:05,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:05,149 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:05,150 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 61 transitions, 470 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:05,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:05,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:05,448 INFO L124 PetriNetUnfolderBase]: 288/635 cut-off events. [2025-02-08 08:35:05,448 INFO L125 PetriNetUnfolderBase]: For 1922/1927 co-relation queries the response was YES. [2025-02-08 08:35:05,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2295 conditions, 635 events. 288/635 cut-off events. For 1922/1927 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3488 event pairs, 68 based on Foata normal form. 5/626 useless extension candidates. Maximal degree in co-relation 2234. Up to 417 conditions per place. [2025-02-08 08:35:05,453 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 69 selfloop transitions, 9 changer transitions 8/96 dead transitions. [2025-02-08 08:35:05,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 96 transitions, 857 flow [2025-02-08 08:35:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 147 transitions. [2025-02-08 08:35:05,454 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48355263157894735 [2025-02-08 08:35:05,454 INFO L175 Difference]: Start difference. First operand has 85 places, 61 transitions, 470 flow. Second operand 8 states and 147 transitions. [2025-02-08 08:35:05,454 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 96 transitions, 857 flow [2025-02-08 08:35:05,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 96 transitions, 826 flow, removed 12 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:05,463 INFO L231 Difference]: Finished difference. Result has 91 places, 63 transitions, 527 flow [2025-02-08 08:35:05,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=527, PETRI_PLACES=91, PETRI_TRANSITIONS=63} [2025-02-08 08:35:05,463 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 55 predicate places. [2025-02-08 08:35:05,464 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 63 transitions, 527 flow [2025-02-08 08:35:05,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:05,464 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:05,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 08:35:05,464 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:05,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:05,465 INFO L85 PathProgramCache]: Analyzing trace with hash -887874054, now seen corresponding path program 6 times [2025-02-08 08:35:05,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:05,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302421335] [2025-02-08 08:35:05,465 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:05,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:05,472 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:05,474 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:05,475 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:05,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:05,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:05,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302421335] [2025-02-08 08:35:05,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302421335] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:05,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:05,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:05,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660343374] [2025-02-08 08:35:05,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:05,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:05,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:05,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:05,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:05,585 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:05,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 63 transitions, 527 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:05,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:05,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:05,850 INFO L124 PetriNetUnfolderBase]: 285/634 cut-off events. [2025-02-08 08:35:05,850 INFO L125 PetriNetUnfolderBase]: For 2189/2194 co-relation queries the response was YES. [2025-02-08 08:35:05,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2311 conditions, 634 events. 285/634 cut-off events. For 2189/2194 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3523 event pairs, 52 based on Foata normal form. 5/629 useless extension candidates. Maximal degree in co-relation 2247. Up to 393 conditions per place. [2025-02-08 08:35:05,856 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 71 selfloop transitions, 13 changer transitions 6/100 dead transitions. [2025-02-08 08:35:05,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 100 transitions, 941 flow [2025-02-08 08:35:05,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2025-02-08 08:35:05,858 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 08:35:05,858 INFO L175 Difference]: Start difference. First operand has 91 places, 63 transitions, 527 flow. Second operand 8 states and 152 transitions. [2025-02-08 08:35:05,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 100 transitions, 941 flow [2025-02-08 08:35:05,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 100 transitions, 925 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:05,866 INFO L231 Difference]: Finished difference. Result has 94 places, 64 transitions, 573 flow [2025-02-08 08:35:05,867 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=573, PETRI_PLACES=94, PETRI_TRANSITIONS=64} [2025-02-08 08:35:05,867 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 58 predicate places. [2025-02-08 08:35:05,867 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 64 transitions, 573 flow [2025-02-08 08:35:05,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,868 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:05,868 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:05,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 08:35:05,868 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:05,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash -2051349084, now seen corresponding path program 7 times [2025-02-08 08:35:05,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:05,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139985196] [2025-02-08 08:35:05,869 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:05,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:05,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:05,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:05,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:05,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:05,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:05,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139985196] [2025-02-08 08:35:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139985196] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:05,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:05,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:05,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410658443] [2025-02-08 08:35:05,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:05,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:05,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:05,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:05,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:05,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:05,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 64 transitions, 573 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:05,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:05,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:05,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:06,227 INFO L124 PetriNetUnfolderBase]: 285/634 cut-off events. [2025-02-08 08:35:06,228 INFO L125 PetriNetUnfolderBase]: For 2299/2304 co-relation queries the response was YES. [2025-02-08 08:35:06,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2389 conditions, 634 events. 285/634 cut-off events. For 2299/2304 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3512 event pairs, 68 based on Foata normal form. 5/625 useless extension candidates. Maximal degree in co-relation 2325. Up to 454 conditions per place. [2025-02-08 08:35:06,233 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 58 selfloop transitions, 14 changer transitions 6/88 dead transitions. [2025-02-08 08:35:06,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 88 transitions, 892 flow [2025-02-08 08:35:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:06,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 142 transitions. [2025-02-08 08:35:06,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46710526315789475 [2025-02-08 08:35:06,235 INFO L175 Difference]: Start difference. First operand has 94 places, 64 transitions, 573 flow. Second operand 8 states and 142 transitions. [2025-02-08 08:35:06,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 88 transitions, 892 flow [2025-02-08 08:35:06,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 88 transitions, 852 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:06,244 INFO L231 Difference]: Finished difference. Result has 99 places, 68 transitions, 665 flow [2025-02-08 08:35:06,245 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=665, PETRI_PLACES=99, PETRI_TRANSITIONS=68} [2025-02-08 08:35:06,245 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 63 predicate places. [2025-02-08 08:35:06,245 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 68 transitions, 665 flow [2025-02-08 08:35:06,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:06,245 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:06,245 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:06,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 08:35:06,246 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:06,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:06,246 INFO L85 PathProgramCache]: Analyzing trace with hash -911065248, now seen corresponding path program 8 times [2025-02-08 08:35:06,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:06,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762958172] [2025-02-08 08:35:06,246 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:06,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:06,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:06,257 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:06,257 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:06,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:06,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:06,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:06,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762958172] [2025-02-08 08:35:06,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762958172] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:06,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:06,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:06,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642081971] [2025-02-08 08:35:06,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:06,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:06,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:06,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:06,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:06,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:06,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 68 transitions, 665 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:06,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:06,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:06,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:06,642 INFO L124 PetriNetUnfolderBase]: 282/631 cut-off events. [2025-02-08 08:35:06,642 INFO L125 PetriNetUnfolderBase]: For 2480/2485 co-relation queries the response was YES. [2025-02-08 08:35:06,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2391 conditions, 631 events. 282/631 cut-off events. For 2480/2485 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3504 event pairs, 63 based on Foata normal form. 5/622 useless extension candidates. Maximal degree in co-relation 2323. Up to 393 conditions per place. [2025-02-08 08:35:06,648 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 61 selfloop transitions, 15 changer transitions 8/94 dead transitions. [2025-02-08 08:35:06,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 94 transitions, 957 flow [2025-02-08 08:35:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:06,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2025-02-08 08:35:06,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48026315789473684 [2025-02-08 08:35:06,649 INFO L175 Difference]: Start difference. First operand has 99 places, 68 transitions, 665 flow. Second operand 8 states and 146 transitions. [2025-02-08 08:35:06,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 94 transitions, 957 flow [2025-02-08 08:35:06,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 94 transitions, 911 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:06,659 INFO L231 Difference]: Finished difference. Result has 101 places, 67 transitions, 633 flow [2025-02-08 08:35:06,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=633, PETRI_PLACES=101, PETRI_TRANSITIONS=67} [2025-02-08 08:35:06,660 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 65 predicate places. [2025-02-08 08:35:06,660 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 67 transitions, 633 flow [2025-02-08 08:35:06,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:06,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:06,661 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:06,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 08:35:06,661 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:06,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash 106540450, now seen corresponding path program 9 times [2025-02-08 08:35:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809447021] [2025-02-08 08:35:06,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:06,668 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:06,672 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:06,672 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:06,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:06,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:06,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809447021] [2025-02-08 08:35:06,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809447021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:06,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:06,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:06,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540867474] [2025-02-08 08:35:06,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:06,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:06,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:06,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:06,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:06,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:06,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 67 transitions, 633 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:06,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:06,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:06,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:07,024 INFO L124 PetriNetUnfolderBase]: 280/630 cut-off events. [2025-02-08 08:35:07,025 INFO L125 PetriNetUnfolderBase]: For 2523/2528 co-relation queries the response was YES. [2025-02-08 08:35:07,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 630 events. 280/630 cut-off events. For 2523/2528 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3513 event pairs, 53 based on Foata normal form. 5/625 useless extension candidates. Maximal degree in co-relation 2313. Up to 391 conditions per place. [2025-02-08 08:35:07,030 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 68 selfloop transitions, 14 changer transitions 10/102 dead transitions. [2025-02-08 08:35:07,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 1000 flow [2025-02-08 08:35:07,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 152 transitions. [2025-02-08 08:35:07,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-02-08 08:35:07,031 INFO L175 Difference]: Start difference. First operand has 101 places, 67 transitions, 633 flow. Second operand 8 states and 152 transitions. [2025-02-08 08:35:07,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 1000 flow [2025-02-08 08:35:07,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 102 transitions, 962 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:07,039 INFO L231 Difference]: Finished difference. Result has 100 places, 65 transitions, 594 flow [2025-02-08 08:35:07,039 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=594, PETRI_PLACES=100, PETRI_TRANSITIONS=65} [2025-02-08 08:35:07,040 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 64 predicate places. [2025-02-08 08:35:07,040 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 65 transitions, 594 flow [2025-02-08 08:35:07,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:07,040 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:07,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 08:35:07,040 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:07,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash -372744226, now seen corresponding path program 10 times [2025-02-08 08:35:07,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:07,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724199803] [2025-02-08 08:35:07,041 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:07,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:07,047 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:35:07,055 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:07,055 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:07,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:07,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:07,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724199803] [2025-02-08 08:35:07,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724199803] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023504632] [2025-02-08 08:35:07,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:07,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:07,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:07,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:07,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:07,176 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:07,177 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 65 transitions, 594 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,177 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:07,177 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:07,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:07,403 INFO L124 PetriNetUnfolderBase]: 277/623 cut-off events. [2025-02-08 08:35:07,403 INFO L125 PetriNetUnfolderBase]: For 2346/2351 co-relation queries the response was YES. [2025-02-08 08:35:07,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2338 conditions, 623 events. 277/623 cut-off events. For 2346/2351 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3456 event pairs, 62 based on Foata normal form. 5/614 useless extension candidates. Maximal degree in co-relation 2271. Up to 389 conditions per place. [2025-02-08 08:35:07,410 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 59 selfloop transitions, 11 changer transitions 11/91 dead transitions. [2025-02-08 08:35:07,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 91 transitions, 876 flow [2025-02-08 08:35:07,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:07,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:07,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 145 transitions. [2025-02-08 08:35:07,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4769736842105263 [2025-02-08 08:35:07,411 INFO L175 Difference]: Start difference. First operand has 100 places, 65 transitions, 594 flow. Second operand 8 states and 145 transitions. [2025-02-08 08:35:07,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 91 transitions, 876 flow [2025-02-08 08:35:07,417 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 91 transitions, 840 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:07,419 INFO L231 Difference]: Finished difference. Result has 99 places, 62 transitions, 543 flow [2025-02-08 08:35:07,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=543, PETRI_PLACES=99, PETRI_TRANSITIONS=62} [2025-02-08 08:35:07,419 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 63 predicate places. [2025-02-08 08:35:07,419 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 62 transitions, 543 flow [2025-02-08 08:35:07,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:07,420 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:07,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 08:35:07,420 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:07,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:07,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1191285262, now seen corresponding path program 11 times [2025-02-08 08:35:07,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:07,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721349433] [2025-02-08 08:35:07,421 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:07,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:07,425 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:07,428 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:07,428 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:07,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:07,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:07,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721349433] [2025-02-08 08:35:07,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721349433] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:07,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:07,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838970691] [2025-02-08 08:35:07,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:07,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:07,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:07,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:07,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:07,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:07,513 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 62 transitions, 543 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,513 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:07,513 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:07,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:07,774 INFO L124 PetriNetUnfolderBase]: 271/608 cut-off events. [2025-02-08 08:35:07,775 INFO L125 PetriNetUnfolderBase]: For 2197/2202 co-relation queries the response was YES. [2025-02-08 08:35:07,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2226 conditions, 608 events. 271/608 cut-off events. For 2197/2202 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3334 event pairs, 68 based on Foata normal form. 5/599 useless extension candidates. Maximal degree in co-relation 2159. Up to 447 conditions per place. [2025-02-08 08:35:07,780 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 54 selfloop transitions, 10 changer transitions 7/81 dead transitions. [2025-02-08 08:35:07,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 81 transitions, 777 flow [2025-02-08 08:35:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:07,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2025-02-08 08:35:07,781 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45723684210526316 [2025-02-08 08:35:07,781 INFO L175 Difference]: Start difference. First operand has 99 places, 62 transitions, 543 flow. Second operand 8 states and 139 transitions. [2025-02-08 08:35:07,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 81 transitions, 777 flow [2025-02-08 08:35:07,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 81 transitions, 731 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:07,789 INFO L231 Difference]: Finished difference. Result has 94 places, 61 transitions, 505 flow [2025-02-08 08:35:07,790 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=505, PETRI_PLACES=94, PETRI_TRANSITIONS=61} [2025-02-08 08:35:07,790 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 58 predicate places. [2025-02-08 08:35:07,790 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 61 transitions, 505 flow [2025-02-08 08:35:07,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:07,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:07,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 08:35:07,791 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:07,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1523752822, now seen corresponding path program 12 times [2025-02-08 08:35:07,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:07,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885546837] [2025-02-08 08:35:07,791 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:07,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:07,797 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:07,804 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:07,804 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:07,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:07,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:07,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:07,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885546837] [2025-02-08 08:35:07,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885546837] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:07,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:07,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:07,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552261763] [2025-02-08 08:35:07,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:07,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:07,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:07,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:07,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:07,914 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:07,915 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 61 transitions, 505 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:07,915 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:07,915 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:07,915 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:08,137 INFO L124 PetriNetUnfolderBase]: 268/595 cut-off events. [2025-02-08 08:35:08,137 INFO L125 PetriNetUnfolderBase]: For 1847/1852 co-relation queries the response was YES. [2025-02-08 08:35:08,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2116 conditions, 595 events. 268/595 cut-off events. For 1847/1852 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3219 event pairs, 68 based on Foata normal form. 5/586 useless extension candidates. Maximal degree in co-relation 2055. Up to 437 conditions per place. [2025-02-08 08:35:08,144 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 51 selfloop transitions, 6 changer transitions 11/78 dead transitions. [2025-02-08 08:35:08,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 78 transitions, 701 flow [2025-02-08 08:35:08,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:08,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:08,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 137 transitions. [2025-02-08 08:35:08,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4506578947368421 [2025-02-08 08:35:08,146 INFO L175 Difference]: Start difference. First operand has 94 places, 61 transitions, 505 flow. Second operand 8 states and 137 transitions. [2025-02-08 08:35:08,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 78 transitions, 701 flow [2025-02-08 08:35:08,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 78 transitions, 671 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:08,153 INFO L231 Difference]: Finished difference. Result has 93 places, 57 transitions, 440 flow [2025-02-08 08:35:08,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=477, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=440, PETRI_PLACES=93, PETRI_TRANSITIONS=57} [2025-02-08 08:35:08,154 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2025-02-08 08:35:08,154 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 57 transitions, 440 flow [2025-02-08 08:35:08,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:08,155 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:08,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-08 08:35:08,155 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:08,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:08,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1894751136, now seen corresponding path program 13 times [2025-02-08 08:35:08,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:08,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881668315] [2025-02-08 08:35:08,155 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:08,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:08,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:08,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:08,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:08,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:08,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881668315] [2025-02-08 08:35:08,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881668315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:08,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275258354] [2025-02-08 08:35:08,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:08,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:08,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:08,277 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:08,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 57 transitions, 440 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:08,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:08,477 INFO L124 PetriNetUnfolderBase]: 265/568 cut-off events. [2025-02-08 08:35:08,477 INFO L125 PetriNetUnfolderBase]: For 1696/1703 co-relation queries the response was YES. [2025-02-08 08:35:08,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1978 conditions, 568 events. 265/568 cut-off events. For 1696/1703 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2971 event pairs, 176 based on Foata normal form. 1/536 useless extension candidates. Maximal degree in co-relation 1918. Up to 490 conditions per place. [2025-02-08 08:35:08,483 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 44 selfloop transitions, 11 changer transitions 6/71 dead transitions. [2025-02-08 08:35:08,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 71 transitions, 652 flow [2025-02-08 08:35:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:08,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 130 transitions. [2025-02-08 08:35:08,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4276315789473684 [2025-02-08 08:35:08,485 INFO L175 Difference]: Start difference. First operand has 93 places, 57 transitions, 440 flow. Second operand 8 states and 130 transitions. [2025-02-08 08:35:08,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 71 transitions, 652 flow [2025-02-08 08:35:08,490 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 71 transitions, 630 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:08,491 INFO L231 Difference]: Finished difference. Result has 92 places, 60 transitions, 501 flow [2025-02-08 08:35:08,491 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=420, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=501, PETRI_PLACES=92, PETRI_TRANSITIONS=60} [2025-02-08 08:35:08,491 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2025-02-08 08:35:08,491 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 60 transitions, 501 flow [2025-02-08 08:35:08,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:08,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:08,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-08 08:35:08,492 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:08,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:08,492 INFO L85 PathProgramCache]: Analyzing trace with hash 249353484, now seen corresponding path program 14 times [2025-02-08 08:35:08,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:08,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285515736] [2025-02-08 08:35:08,493 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:08,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:08,499 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:08,502 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:08,502 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:08,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:08,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285515736] [2025-02-08 08:35:08,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285515736] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:08,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628626591] [2025-02-08 08:35:08,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:08,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:08,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:08,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:08,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 60 transitions, 501 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:08,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:08,782 INFO L124 PetriNetUnfolderBase]: 262/563 cut-off events. [2025-02-08 08:35:08,782 INFO L125 PetriNetUnfolderBase]: For 1636/1643 co-relation queries the response was YES. [2025-02-08 08:35:08,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1965 conditions, 563 events. 262/563 cut-off events. For 1636/1643 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2946 event pairs, 174 based on Foata normal form. 1/531 useless extension candidates. Maximal degree in co-relation 1904. Up to 482 conditions per place. [2025-02-08 08:35:08,786 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 44 selfloop transitions, 9 changer transitions 8/71 dead transitions. [2025-02-08 08:35:08,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 71 transitions, 663 flow [2025-02-08 08:35:08,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 130 transitions. [2025-02-08 08:35:08,788 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4276315789473684 [2025-02-08 08:35:08,789 INFO L175 Difference]: Start difference. First operand has 92 places, 60 transitions, 501 flow. Second operand 8 states and 130 transitions. [2025-02-08 08:35:08,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 71 transitions, 663 flow [2025-02-08 08:35:08,795 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 71 transitions, 621 flow, removed 13 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:08,796 INFO L231 Difference]: Finished difference. Result has 95 places, 59 transitions, 470 flow [2025-02-08 08:35:08,796 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=470, PETRI_PLACES=95, PETRI_TRANSITIONS=59} [2025-02-08 08:35:08,797 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 59 predicate places. [2025-02-08 08:35:08,797 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 59 transitions, 470 flow [2025-02-08 08:35:08,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,797 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:08,798 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:08,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 08:35:08,798 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:08,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:08,799 INFO L85 PathProgramCache]: Analyzing trace with hash -691481276, now seen corresponding path program 15 times [2025-02-08 08:35:08,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:08,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622216567] [2025-02-08 08:35:08,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:08,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:08,804 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:08,807 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:08,807 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:08,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:08,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622216567] [2025-02-08 08:35:08,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622216567] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:08,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561628802] [2025-02-08 08:35:08,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:08,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:08,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:08,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:08,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 59 transitions, 470 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:08,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:08,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,118 INFO L124 PetriNetUnfolderBase]: 259/550 cut-off events. [2025-02-08 08:35:09,119 INFO L125 PetriNetUnfolderBase]: For 1535/1542 co-relation queries the response was YES. [2025-02-08 08:35:09,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1904 conditions, 550 events. 259/550 cut-off events. For 1535/1542 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2815 event pairs, 173 based on Foata normal form. 1/518 useless extension candidates. Maximal degree in co-relation 1858. Up to 475 conditions per place. [2025-02-08 08:35:09,125 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 41 selfloop transitions, 6 changer transitions 11/68 dead transitions. [2025-02-08 08:35:09,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 68 transitions, 607 flow [2025-02-08 08:35:09,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:09,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:09,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 128 transitions. [2025-02-08 08:35:09,127 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42105263157894735 [2025-02-08 08:35:09,127 INFO L175 Difference]: Start difference. First operand has 95 places, 59 transitions, 470 flow. Second operand 8 states and 128 transitions. [2025-02-08 08:35:09,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 68 transitions, 607 flow [2025-02-08 08:35:09,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 68 transitions, 579 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:09,134 INFO L231 Difference]: Finished difference. Result has 92 places, 55 transitions, 410 flow [2025-02-08 08:35:09,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=410, PETRI_PLACES=92, PETRI_TRANSITIONS=55} [2025-02-08 08:35:09,136 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 56 predicate places. [2025-02-08 08:35:09,136 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 55 transitions, 410 flow [2025-02-08 08:35:09,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:09,136 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:09,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 08:35:09,137 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:09,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash -650083954, now seen corresponding path program 8 times [2025-02-08 08:35:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:09,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630408290] [2025-02-08 08:35:09,137 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:09,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:09,144 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:09,147 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:09,147 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:09,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:09,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:09,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:09,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630408290] [2025-02-08 08:35:09,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630408290] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:09,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:09,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:09,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113741767] [2025-02-08 08:35:09,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:09,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:09,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:09,235 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:09,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:09,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:09,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 55 transitions, 410 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:09,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:09,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,472 INFO L124 PetriNetUnfolderBase]: 257/575 cut-off events. [2025-02-08 08:35:09,472 INFO L125 PetriNetUnfolderBase]: For 1557/1565 co-relation queries the response was YES. [2025-02-08 08:35:09,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1876 conditions, 575 events. 257/575 cut-off events. For 1557/1565 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3088 event pairs, 54 based on Foata normal form. 3/567 useless extension candidates. Maximal degree in co-relation 1821. Up to 369 conditions per place. [2025-02-08 08:35:09,478 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 50 selfloop transitions, 12 changer transitions 8/82 dead transitions. [2025-02-08 08:35:09,479 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 82 transitions, 694 flow [2025-02-08 08:35:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:09,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2025-02-08 08:35:09,480 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2025-02-08 08:35:09,480 INFO L175 Difference]: Start difference. First operand has 92 places, 55 transitions, 410 flow. Second operand 8 states and 144 transitions. [2025-02-08 08:35:09,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 82 transitions, 694 flow [2025-02-08 08:35:09,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 82 transitions, 669 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:09,486 INFO L231 Difference]: Finished difference. Result has 89 places, 59 transitions, 475 flow [2025-02-08 08:35:09,486 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=475, PETRI_PLACES=89, PETRI_TRANSITIONS=59} [2025-02-08 08:35:09,487 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 53 predicate places. [2025-02-08 08:35:09,487 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 59 transitions, 475 flow [2025-02-08 08:35:09,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,487 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:09,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:09,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-08 08:35:09,487 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:09,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:09,488 INFO L85 PathProgramCache]: Analyzing trace with hash 539453406, now seen corresponding path program 9 times [2025-02-08 08:35:09,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:09,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48254254] [2025-02-08 08:35:09,488 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:09,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:09,493 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:09,496 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:09,496 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:09,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:09,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48254254] [2025-02-08 08:35:09,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48254254] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:09,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175608773] [2025-02-08 08:35:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:09,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:09,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:09,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:09,593 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:09,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 59 transitions, 475 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:09,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:09,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,813 INFO L124 PetriNetUnfolderBase]: 255/567 cut-off events. [2025-02-08 08:35:09,813 INFO L125 PetriNetUnfolderBase]: For 1657/1665 co-relation queries the response was YES. [2025-02-08 08:35:09,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1937 conditions, 567 events. 255/567 cut-off events. For 1657/1665 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3024 event pairs, 60 based on Foata normal form. 3/559 useless extension candidates. Maximal degree in co-relation 1881. Up to 413 conditions per place. [2025-02-08 08:35:09,817 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 46 selfloop transitions, 12 changer transitions 8/78 dead transitions. [2025-02-08 08:35:09,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 78 transitions, 717 flow [2025-02-08 08:35:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:09,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:09,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 138 transitions. [2025-02-08 08:35:09,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45394736842105265 [2025-02-08 08:35:09,819 INFO L175 Difference]: Start difference. First operand has 89 places, 59 transitions, 475 flow. Second operand 8 states and 138 transitions. [2025-02-08 08:35:09,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 78 transitions, 717 flow [2025-02-08 08:35:09,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 78 transitions, 697 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 08:35:09,825 INFO L231 Difference]: Finished difference. Result has 95 places, 61 transitions, 525 flow [2025-02-08 08:35:09,825 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=525, PETRI_PLACES=95, PETRI_TRANSITIONS=61} [2025-02-08 08:35:09,830 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 59 predicate places. [2025-02-08 08:35:09,830 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 61 transitions, 525 flow [2025-02-08 08:35:09,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,830 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:09,831 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:09,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-08 08:35:09,831 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:09,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:09,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1567129568, now seen corresponding path program 10 times [2025-02-08 08:35:09,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:09,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151406047] [2025-02-08 08:35:09,832 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:09,836 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 17 statements into 2 equivalence classes. [2025-02-08 08:35:09,840 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:09,840 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:09,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:09,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:09,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:09,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151406047] [2025-02-08 08:35:09,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151406047] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:09,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:09,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:09,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58886501] [2025-02-08 08:35:09,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:09,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:09,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:09,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:09,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:09,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:09,947 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 61 transitions, 525 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:09,947 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:09,947 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:09,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:10,183 INFO L124 PetriNetUnfolderBase]: 254/572 cut-off events. [2025-02-08 08:35:10,183 INFO L125 PetriNetUnfolderBase]: For 1793/1801 co-relation queries the response was YES. [2025-02-08 08:35:10,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1958 conditions, 572 events. 254/572 cut-off events. For 1793/1801 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3060 event pairs, 52 based on Foata normal form. 3/564 useless extension candidates. Maximal degree in co-relation 1899. Up to 365 conditions per place. [2025-02-08 08:35:10,186 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 51 selfloop transitions, 11 changer transitions 10/84 dead transitions. [2025-02-08 08:35:10,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 84 transitions, 764 flow [2025-02-08 08:35:10,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:10,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:10,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 144 transitions. [2025-02-08 08:35:10,187 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2025-02-08 08:35:10,187 INFO L175 Difference]: Start difference. First operand has 95 places, 61 transitions, 525 flow. Second operand 8 states and 144 transitions. [2025-02-08 08:35:10,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 84 transitions, 764 flow [2025-02-08 08:35:10,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 84 transitions, 715 flow, removed 11 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:10,194 INFO L231 Difference]: Finished difference. Result has 94 places, 60 transitions, 489 flow [2025-02-08 08:35:10,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=489, PETRI_PLACES=94, PETRI_TRANSITIONS=60} [2025-02-08 08:35:10,195 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 58 predicate places. [2025-02-08 08:35:10,195 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 60 transitions, 489 flow [2025-02-08 08:35:10,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:10,195 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:10,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-08 08:35:10,195 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:10,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2111887090, now seen corresponding path program 11 times [2025-02-08 08:35:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:10,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165276085] [2025-02-08 08:35:10,196 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:10,200 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:10,202 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:10,202 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:10,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:10,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165276085] [2025-02-08 08:35:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165276085] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:10,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:10,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530184698] [2025-02-08 08:35:10,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:10,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:10,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:10,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:10,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:10,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:10,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 60 transitions, 489 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:10,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:10,287 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:10,519 INFO L124 PetriNetUnfolderBase]: 249/565 cut-off events. [2025-02-08 08:35:10,520 INFO L125 PetriNetUnfolderBase]: For 1755/1763 co-relation queries the response was YES. [2025-02-08 08:35:10,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1910 conditions, 565 events. 249/565 cut-off events. For 1755/1763 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 3035 event pairs, 42 based on Foata normal form. 5/561 useless extension candidates. Maximal degree in co-relation 1854. Up to 363 conditions per place. [2025-02-08 08:35:10,523 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 55 selfloop transitions, 11 changer transitions 8/86 dead transitions. [2025-02-08 08:35:10,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 86 transitions, 736 flow [2025-02-08 08:35:10,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:10,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:10,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 146 transitions. [2025-02-08 08:35:10,525 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48026315789473684 [2025-02-08 08:35:10,525 INFO L175 Difference]: Start difference. First operand has 94 places, 60 transitions, 489 flow. Second operand 8 states and 146 transitions. [2025-02-08 08:35:10,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 86 transitions, 736 flow [2025-02-08 08:35:10,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 86 transitions, 708 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:10,531 INFO L231 Difference]: Finished difference. Result has 93 places, 58 transitions, 461 flow [2025-02-08 08:35:10,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=461, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=461, PETRI_PLACES=93, PETRI_TRANSITIONS=58} [2025-02-08 08:35:10,531 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2025-02-08 08:35:10,531 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 58 transitions, 461 flow [2025-02-08 08:35:10,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:10,532 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:10,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-08 08:35:10,532 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:10,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash 801312774, now seen corresponding path program 12 times [2025-02-08 08:35:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:10,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007100948] [2025-02-08 08:35:10,532 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:10,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:10,538 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:10,542 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:10,542 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:10,542 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:10,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:10,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:10,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007100948] [2025-02-08 08:35:10,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007100948] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:10,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:10,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:10,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059576097] [2025-02-08 08:35:10,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:10,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:10,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:10,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:10,621 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:10,627 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:10,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 58 transitions, 461 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:10,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:10,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:10,854 INFO L124 PetriNetUnfolderBase]: 245/549 cut-off events. [2025-02-08 08:35:10,855 INFO L125 PetriNetUnfolderBase]: For 1560/1568 co-relation queries the response was YES. [2025-02-08 08:35:10,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1855 conditions, 549 events. 245/549 cut-off events. For 1560/1568 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2907 event pairs, 58 based on Foata normal form. 3/541 useless extension candidates. Maximal degree in co-relation 1800. Up to 395 conditions per place. [2025-02-08 08:35:10,858 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 45 selfloop transitions, 8 changer transitions 10/75 dead transitions. [2025-02-08 08:35:10,858 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 75 transitions, 659 flow [2025-02-08 08:35:10,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:10,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:10,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 139 transitions. [2025-02-08 08:35:10,859 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45723684210526316 [2025-02-08 08:35:10,859 INFO L175 Difference]: Start difference. First operand has 93 places, 58 transitions, 461 flow. Second operand 8 states and 139 transitions. [2025-02-08 08:35:10,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 75 transitions, 659 flow [2025-02-08 08:35:10,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 75 transitions, 629 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:10,866 INFO L231 Difference]: Finished difference. Result has 93 places, 57 transitions, 448 flow [2025-02-08 08:35:10,866 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=448, PETRI_PLACES=93, PETRI_TRANSITIONS=57} [2025-02-08 08:35:10,867 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 57 predicate places. [2025-02-08 08:35:10,867 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 57 transitions, 448 flow [2025-02-08 08:35:10,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,867 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:10,867 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:10,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-08 08:35:10,868 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:10,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash 871920966, now seen corresponding path program 13 times [2025-02-08 08:35:10,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:10,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961056476] [2025-02-08 08:35:10,868 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:10,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:10,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:10,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:10,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:10,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:10,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:10,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961056476] [2025-02-08 08:35:10,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961056476] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:10,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:10,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:10,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245062088] [2025-02-08 08:35:10,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:10,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:10,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:10,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:10,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:10,969 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:10,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 57 transitions, 448 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:10,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:10,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:10,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,140 INFO L124 PetriNetUnfolderBase]: 240/540 cut-off events. [2025-02-08 08:35:11,141 INFO L125 PetriNetUnfolderBase]: For 1535/1543 co-relation queries the response was YES. [2025-02-08 08:35:11,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 540 events. 240/540 cut-off events. For 1535/1543 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2840 event pairs, 58 based on Foata normal form. 3/532 useless extension candidates. Maximal degree in co-relation 1742. Up to 395 conditions per place. [2025-02-08 08:35:11,144 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 43 selfloop transitions, 5 changer transitions 11/71 dead transitions. [2025-02-08 08:35:11,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 71 transitions, 617 flow [2025-02-08 08:35:11,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:11,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:11,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 135 transitions. [2025-02-08 08:35:11,146 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4440789473684211 [2025-02-08 08:35:11,146 INFO L175 Difference]: Start difference. First operand has 93 places, 57 transitions, 448 flow. Second operand 8 states and 135 transitions. [2025-02-08 08:35:11,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 71 transitions, 617 flow [2025-02-08 08:35:11,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 71 transitions, 593 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:11,153 INFO L231 Difference]: Finished difference. Result has 91 places, 53 transitions, 389 flow [2025-02-08 08:35:11,153 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=426, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=389, PETRI_PLACES=91, PETRI_TRANSITIONS=53} [2025-02-08 08:35:11,153 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 55 predicate places. [2025-02-08 08:35:11,154 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 53 transitions, 389 flow [2025-02-08 08:35:11,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:11,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:11,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-08 08:35:11,154 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:11,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,155 INFO L85 PathProgramCache]: Analyzing trace with hash -424879956, now seen corresponding path program 14 times [2025-02-08 08:35:11,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66411289] [2025-02-08 08:35:11,155 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:11,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,158 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:11,161 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:11,161 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:11,161 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:11,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66411289] [2025-02-08 08:35:11,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66411289] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:11,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276453839] [2025-02-08 08:35:11,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:11,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:11,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:11,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:11,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 53 transitions, 389 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:11,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:11,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,502 INFO L124 PetriNetUnfolderBase]: 235/535 cut-off events. [2025-02-08 08:35:11,502 INFO L125 PetriNetUnfolderBase]: For 1415/1423 co-relation queries the response was YES. [2025-02-08 08:35:11,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1720 conditions, 535 events. 235/535 cut-off events. For 1415/1423 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2814 event pairs, 51 based on Foata normal form. 3/527 useless extension candidates. Maximal degree in co-relation 1666. Up to 353 conditions per place. [2025-02-08 08:35:11,506 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 46 selfloop transitions, 5 changer transitions 10/73 dead transitions. [2025-02-08 08:35:11,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 73 transitions, 587 flow [2025-02-08 08:35:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 140 transitions. [2025-02-08 08:35:11,507 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4605263157894737 [2025-02-08 08:35:11,507 INFO L175 Difference]: Start difference. First operand has 91 places, 53 transitions, 389 flow. Second operand 8 states and 140 transitions. [2025-02-08 08:35:11,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 73 transitions, 587 flow [2025-02-08 08:35:11,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 73 transitions, 551 flow, removed 6 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:11,512 INFO L231 Difference]: Finished difference. Result has 86 places, 50 transitions, 338 flow [2025-02-08 08:35:11,513 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=338, PETRI_PLACES=86, PETRI_TRANSITIONS=50} [2025-02-08 08:35:11,513 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 50 predicate places. [2025-02-08 08:35:11,513 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 50 transitions, 338 flow [2025-02-08 08:35:11,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:11,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:11,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-08 08:35:11,513 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:11,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,514 INFO L85 PathProgramCache]: Analyzing trace with hash -529552914, now seen corresponding path program 15 times [2025-02-08 08:35:11,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125570444] [2025-02-08 08:35:11,514 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:11,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,518 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:35:11,521 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:35:11,521 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:11,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125570444] [2025-02-08 08:35:11,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125570444] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-08 08:35:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940415591] [2025-02-08 08:35:11,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-08 08:35:11,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-08 08:35:11,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-08 08:35:11,622 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:11,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 50 transitions, 338 flow. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:11,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:11,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,797 INFO L124 PetriNetUnfolderBase]: 235/533 cut-off events. [2025-02-08 08:35:11,797 INFO L125 PetriNetUnfolderBase]: For 1323/1331 co-relation queries the response was YES. [2025-02-08 08:35:11,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1645 conditions, 533 events. 235/533 cut-off events. For 1323/1331 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2768 event pairs, 47 based on Foata normal form. 5/529 useless extension candidates. Maximal degree in co-relation 1599. Up to 330 conditions per place. [2025-02-08 08:35:11,800 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 59 selfloop transitions, 6 changer transitions 6/83 dead transitions. [2025-02-08 08:35:11,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 83 transitions, 601 flow [2025-02-08 08:35:11,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:11,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:11,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 151 transitions. [2025-02-08 08:35:11,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4967105263157895 [2025-02-08 08:35:11,801 INFO L175 Difference]: Start difference. First operand has 86 places, 50 transitions, 338 flow. Second operand 8 states and 151 transitions. [2025-02-08 08:35:11,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 83 transitions, 601 flow [2025-02-08 08:35:11,805 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 83 transitions, 559 flow, removed 9 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:11,806 INFO L231 Difference]: Finished difference. Result has 79 places, 48 transitions, 306 flow [2025-02-08 08:35:11,806 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=306, PETRI_PLACES=79, PETRI_TRANSITIONS=48} [2025-02-08 08:35:11,806 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 43 predicate places. [2025-02-08 08:35:11,806 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 48 transitions, 306 flow [2025-02-08 08:35:11,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 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) [2025-02-08 08:35:11,806 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,807 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:11,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-08 08:35:11,807 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:11,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,807 INFO L85 PathProgramCache]: Analyzing trace with hash 217123401, now seen corresponding path program 1 times [2025-02-08 08:35:11,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054074129] [2025-02-08 08:35:11,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:11,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-08 08:35:11,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-08 08:35:11,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:11,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:11,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054074129] [2025-02-08 08:35:11,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054074129] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:11,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667402441] [2025-02-08 08:35:11,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:11,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:11,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:11,834 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2025-02-08 08:35:11,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 48 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2025-02-08 08:35:11,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2025-02-08 08:35:11,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,880 INFO L124 PetriNetUnfolderBase]: 96/243 cut-off events. [2025-02-08 08:35:11,880 INFO L125 PetriNetUnfolderBase]: For 837/850 co-relation queries the response was YES. [2025-02-08 08:35:11,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 243 events. 96/243 cut-off events. For 837/850 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1125 event pairs, 49 based on Foata normal form. 20/242 useless extension candidates. Maximal degree in co-relation 762. Up to 156 conditions per place. [2025-02-08 08:35:11,882 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 23 selfloop transitions, 0 changer transitions 14/51 dead transitions. [2025-02-08 08:35:11,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 51 transitions, 376 flow [2025-02-08 08:35:11,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2025-02-08 08:35:11,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6052631578947368 [2025-02-08 08:35:11,883 INFO L175 Difference]: Start difference. First operand has 79 places, 48 transitions, 306 flow. Second operand 3 states and 69 transitions. [2025-02-08 08:35:11,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 51 transitions, 376 flow [2025-02-08 08:35:11,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 51 transitions, 359 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:11,886 INFO L231 Difference]: Finished difference. Result has 70 places, 37 transitions, 161 flow [2025-02-08 08:35:11,886 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=70, PETRI_TRANSITIONS=37} [2025-02-08 08:35:11,886 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 34 predicate places. [2025-02-08 08:35:11,886 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 37 transitions, 161 flow [2025-02-08 08:35:11,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2025-02-08 08:35:11,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,886 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:11,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-08 08:35:11,887 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:11,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,887 INFO L85 PathProgramCache]: Analyzing trace with hash 831457932, now seen corresponding path program 1 times [2025-02-08 08:35:11,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287757701] [2025-02-08 08:35:11,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:11,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:11,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:11,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:11,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:11,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287757701] [2025-02-08 08:35:11,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287757701] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:11,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920742269] [2025-02-08 08:35:11,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:11,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:11,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:11,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 38 [2025-02-08 08:35:11,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 37 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2025-02-08 08:35:11,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 38 [2025-02-08 08:35:11,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,948 INFO L124 PetriNetUnfolderBase]: 69/168 cut-off events. [2025-02-08 08:35:11,949 INFO L125 PetriNetUnfolderBase]: For 225/226 co-relation queries the response was YES. [2025-02-08 08:35:11,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 168 events. 69/168 cut-off events. For 225/226 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 631 event pairs, 37 based on Foata normal form. 4/154 useless extension candidates. Maximal degree in co-relation 435. Up to 120 conditions per place. [2025-02-08 08:35:11,950 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 20 selfloop transitions, 0 changer transitions 4/37 dead transitions. [2025-02-08 08:35:11,950 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 37 transitions, 201 flow [2025-02-08 08:35:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:11,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2025-02-08 08:35:11,950 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2025-02-08 08:35:11,951 INFO L175 Difference]: Start difference. First operand has 70 places, 37 transitions, 161 flow. Second operand 3 states and 62 transitions. [2025-02-08 08:35:11,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 37 transitions, 201 flow [2025-02-08 08:35:11,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 37 transitions, 175 flow, removed 9 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:11,952 INFO L231 Difference]: Finished difference. Result has 52 places, 33 transitions, 109 flow [2025-02-08 08:35:11,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=109, PETRI_PLACES=52, PETRI_TRANSITIONS=33} [2025-02-08 08:35:11,952 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2025-02-08 08:35:11,952 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 33 transitions, 109 flow [2025-02-08 08:35:11,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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) [2025-02-08 08:35:11,953 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,953 INFO L206 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] [2025-02-08 08:35:11,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-08 08:35:11,953 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -877543599, now seen corresponding path program 1 times [2025-02-08 08:35:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923877729] [2025-02-08 08:35:11,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:11,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:11,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:11,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:11,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:12,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:12,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923877729] [2025-02-08 08:35:12,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923877729] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:12,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:12,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 08:35:12,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804564138] [2025-02-08 08:35:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:12,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 08:35:12,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:12,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 08:35:12,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 08:35:12,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:12,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 33 transitions, 109 flow. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 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) [2025-02-08 08:35:12,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:12,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:12,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:13,081 INFO L124 PetriNetUnfolderBase]: 224/439 cut-off events. [2025-02-08 08:35:13,081 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2025-02-08 08:35:13,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1089 conditions, 439 events. 224/439 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1927 event pairs, 59 based on Foata normal form. 1/403 useless extension candidates. Maximal degree in co-relation 1072. Up to 134 conditions per place. [2025-02-08 08:35:13,083 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 59 selfloop transitions, 14 changer transitions 58/143 dead transitions. [2025-02-08 08:35:13,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 143 transitions, 678 flow [2025-02-08 08:35:13,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-02-08 08:35:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2025-02-08 08:35:13,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 451 transitions. [2025-02-08 08:35:13,087 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4092558983666062 [2025-02-08 08:35:13,087 INFO L175 Difference]: Start difference. First operand has 52 places, 33 transitions, 109 flow. Second operand 29 states and 451 transitions. [2025-02-08 08:35:13,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 143 transitions, 678 flow [2025-02-08 08:35:13,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 143 transitions, 640 flow, removed 19 selfloop flow, removed 3 redundant places. [2025-02-08 08:35:13,090 INFO L231 Difference]: Finished difference. Result has 98 places, 43 transitions, 247 flow [2025-02-08 08:35:13,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=247, PETRI_PLACES=98, PETRI_TRANSITIONS=43} [2025-02-08 08:35:13,091 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 62 predicate places. [2025-02-08 08:35:13,091 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 43 transitions, 247 flow [2025-02-08 08:35:13,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 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) [2025-02-08 08:35:13,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:13,092 INFO L206 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] [2025-02-08 08:35:13,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-08 08:35:13,092 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:13,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:13,093 INFO L85 PathProgramCache]: Analyzing trace with hash -2115372421, now seen corresponding path program 2 times [2025-02-08 08:35:13,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:13,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867605652] [2025-02-08 08:35:13,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:13,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:13,099 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:13,107 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:13,108 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:13,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:13,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:13,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867605652] [2025-02-08 08:35:13,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867605652] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:13,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:13,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 08:35:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402661460] [2025-02-08 08:35:13,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:13,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 08:35:13,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:13,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 08:35:13,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 08:35:13,307 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2025-02-08 08:35:13,308 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 43 transitions, 247 flow. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2025-02-08 08:35:13,308 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:13,308 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2025-02-08 08:35:13,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:13,748 INFO L124 PetriNetUnfolderBase]: 343/656 cut-off events. [2025-02-08 08:35:13,749 INFO L125 PetriNetUnfolderBase]: For 2827/2855 co-relation queries the response was YES. [2025-02-08 08:35:13,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 656 events. 343/656 cut-off events. For 2827/2855 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3172 event pairs, 121 based on Foata normal form. 2/633 useless extension candidates. Maximal degree in co-relation 2792. Up to 249 conditions per place. [2025-02-08 08:35:13,754 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 71 selfloop transitions, 33 changer transitions 6/121 dead transitions. [2025-02-08 08:35:13,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 121 transitions, 991 flow [2025-02-08 08:35:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 08:35:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 08:35:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 217 transitions. [2025-02-08 08:35:13,755 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4392712550607287 [2025-02-08 08:35:13,755 INFO L175 Difference]: Start difference. First operand has 98 places, 43 transitions, 247 flow. Second operand 13 states and 217 transitions. [2025-02-08 08:35:13,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 121 transitions, 991 flow [2025-02-08 08:35:13,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 121 transitions, 838 flow, removed 66 selfloop flow, removed 15 redundant places. [2025-02-08 08:35:13,763 INFO L231 Difference]: Finished difference. Result has 86 places, 68 transitions, 513 flow [2025-02-08 08:35:13,763 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=513, PETRI_PLACES=86, PETRI_TRANSITIONS=68} [2025-02-08 08:35:13,763 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 50 predicate places. [2025-02-08 08:35:13,763 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 68 transitions, 513 flow [2025-02-08 08:35:13,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 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) [2025-02-08 08:35:13,763 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:13,763 INFO L206 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] [2025-02-08 08:35:13,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-02-08 08:35:13,764 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:13,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:13,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1067631323, now seen corresponding path program 3 times [2025-02-08 08:35:13,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:13,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500628115] [2025-02-08 08:35:13,764 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:13,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:13,768 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:13,772 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:13,772 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:13,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:14,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:14,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:14,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500628115] [2025-02-08 08:35:14,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500628115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:14,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:14,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-08 08:35:14,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851414737] [2025-02-08 08:35:14,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:14,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-08 08:35:14,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:14,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-08 08:35:14,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-08 08:35:14,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:14,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 68 transitions, 513 flow. Second operand has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 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) [2025-02-08 08:35:14,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:14,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:14,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:14,761 INFO L124 PetriNetUnfolderBase]: 331/664 cut-off events. [2025-02-08 08:35:14,761 INFO L125 PetriNetUnfolderBase]: For 2091/2131 co-relation queries the response was YES. [2025-02-08 08:35:14,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2921 conditions, 664 events. 331/664 cut-off events. For 2091/2131 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3315 event pairs, 111 based on Foata normal form. 2/636 useless extension candidates. Maximal degree in co-relation 2884. Up to 208 conditions per place. [2025-02-08 08:35:14,766 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 59 selfloop transitions, 24 changer transitions 61/158 dead transitions. [2025-02-08 08:35:14,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 158 transitions, 1288 flow [2025-02-08 08:35:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-02-08 08:35:14,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2025-02-08 08:35:14,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 443 transitions. [2025-02-08 08:35:14,768 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40199637023593465 [2025-02-08 08:35:14,768 INFO L175 Difference]: Start difference. First operand has 86 places, 68 transitions, 513 flow. Second operand 29 states and 443 transitions. [2025-02-08 08:35:14,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 158 transitions, 1288 flow [2025-02-08 08:35:14,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 158 transitions, 1258 flow, removed 15 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:14,782 INFO L231 Difference]: Finished difference. Result has 130 places, 61 transitions, 526 flow [2025-02-08 08:35:14,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=526, PETRI_PLACES=130, PETRI_TRANSITIONS=61} [2025-02-08 08:35:14,784 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 94 predicate places. [2025-02-08 08:35:14,784 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 61 transitions, 526 flow [2025-02-08 08:35:14,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.6) internal successors, (126), 10 states have internal predecessors, (126), 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) [2025-02-08 08:35:14,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:14,785 INFO L206 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] [2025-02-08 08:35:14,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-02-08 08:35:14,785 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:14,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:14,786 INFO L85 PathProgramCache]: Analyzing trace with hash 616837227, now seen corresponding path program 1 times [2025-02-08 08:35:14,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:14,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113529812] [2025-02-08 08:35:14,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:14,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:14,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:14,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:14,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:14,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:14,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:14,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:14,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113529812] [2025-02-08 08:35:14,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113529812] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:14,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:14,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-08 08:35:14,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109795891] [2025-02-08 08:35:14,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:14,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:14,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:14,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:14,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:14,959 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:14,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 61 transitions, 526 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:14,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:14,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:14,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:15,309 INFO L124 PetriNetUnfolderBase]: 259/533 cut-off events. [2025-02-08 08:35:15,309 INFO L125 PetriNetUnfolderBase]: For 3246/3274 co-relation queries the response was YES. [2025-02-08 08:35:15,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 533 events. 259/533 cut-off events. For 3246/3274 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2573 event pairs, 83 based on Foata normal form. 10/524 useless extension candidates. Maximal degree in co-relation 2751. Up to 197 conditions per place. [2025-02-08 08:35:15,314 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 88 selfloop transitions, 19 changer transitions 6/125 dead transitions. [2025-02-08 08:35:15,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 125 transitions, 1350 flow [2025-02-08 08:35:15,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:15,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:15,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 193 transitions. [2025-02-08 08:35:15,316 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46172248803827753 [2025-02-08 08:35:15,316 INFO L175 Difference]: Start difference. First operand has 130 places, 61 transitions, 526 flow. Second operand 11 states and 193 transitions. [2025-02-08 08:35:15,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 125 transitions, 1350 flow [2025-02-08 08:35:15,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 125 transitions, 1231 flow, removed 31 selfloop flow, removed 19 redundant places. [2025-02-08 08:35:15,329 INFO L231 Difference]: Finished difference. Result has 107 places, 67 transitions, 617 flow [2025-02-08 08:35:15,329 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=617, PETRI_PLACES=107, PETRI_TRANSITIONS=67} [2025-02-08 08:35:15,330 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 71 predicate places. [2025-02-08 08:35:15,330 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 67 transitions, 617 flow [2025-02-08 08:35:15,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:15,330 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:15,330 INFO L206 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] [2025-02-08 08:35:15,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-08 08:35:15,330 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:15,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:15,331 INFO L85 PathProgramCache]: Analyzing trace with hash -509178005, now seen corresponding path program 2 times [2025-02-08 08:35:15,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:15,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184649657] [2025-02-08 08:35:15,331 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:15,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:15,346 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:15,349 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:15,349 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:15,349 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:15,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:15,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:15,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184649657] [2025-02-08 08:35:15,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184649657] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:15,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:15,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-08 08:35:15,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297992566] [2025-02-08 08:35:15,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:15,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:15,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:15,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:15,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:15,553 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:15,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 67 transitions, 617 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:15,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:15,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:15,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:15,841 INFO L124 PetriNetUnfolderBase]: 260/544 cut-off events. [2025-02-08 08:35:15,841 INFO L125 PetriNetUnfolderBase]: For 3499/3559 co-relation queries the response was YES. [2025-02-08 08:35:15,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2937 conditions, 544 events. 260/544 cut-off events. For 3499/3559 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2562 event pairs, 134 based on Foata normal form. 3/525 useless extension candidates. Maximal degree in co-relation 2890. Up to 296 conditions per place. [2025-02-08 08:35:15,847 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 64 selfloop transitions, 15 changer transitions 12/103 dead transitions. [2025-02-08 08:35:15,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 103 transitions, 1050 flow [2025-02-08 08:35:15,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:15,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:15,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2025-02-08 08:35:15,848 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44258373205741625 [2025-02-08 08:35:15,848 INFO L175 Difference]: Start difference. First operand has 107 places, 67 transitions, 617 flow. Second operand 11 states and 185 transitions. [2025-02-08 08:35:15,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 103 transitions, 1050 flow [2025-02-08 08:35:15,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 103 transitions, 907 flow, removed 26 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:15,859 INFO L231 Difference]: Finished difference. Result has 112 places, 67 transitions, 582 flow [2025-02-08 08:35:15,860 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=582, PETRI_PLACES=112, PETRI_TRANSITIONS=67} [2025-02-08 08:35:15,860 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 76 predicate places. [2025-02-08 08:35:15,860 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 67 transitions, 582 flow [2025-02-08 08:35:15,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:15,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:15,860 INFO L206 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] [2025-02-08 08:35:15,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-02-08 08:35:15,861 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:15,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1998851031, now seen corresponding path program 3 times [2025-02-08 08:35:15,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:15,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924315780] [2025-02-08 08:35:15,861 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:15,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:15,865 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:15,868 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:15,868 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:15,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:15,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:15,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924315780] [2025-02-08 08:35:15,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924315780] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:15,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:15,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-08 08:35:15,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718789226] [2025-02-08 08:35:15,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:15,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:15,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:15,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:15,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:16,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:16,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 67 transitions, 582 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:16,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:16,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:16,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:16,302 INFO L124 PetriNetUnfolderBase]: 279/569 cut-off events. [2025-02-08 08:35:16,303 INFO L125 PetriNetUnfolderBase]: For 3829/3883 co-relation queries the response was YES. [2025-02-08 08:35:16,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3083 conditions, 569 events. 279/569 cut-off events. For 3829/3883 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2771 event pairs, 83 based on Foata normal form. 5/555 useless extension candidates. Maximal degree in co-relation 3034. Up to 197 conditions per place. [2025-02-08 08:35:16,307 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 83 selfloop transitions, 27 changer transitions 6/128 dead transitions. [2025-02-08 08:35:16,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 128 transitions, 1452 flow [2025-02-08 08:35:16,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:16,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 190 transitions. [2025-02-08 08:35:16,308 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45454545454545453 [2025-02-08 08:35:16,309 INFO L175 Difference]: Start difference. First operand has 112 places, 67 transitions, 582 flow. Second operand 11 states and 190 transitions. [2025-02-08 08:35:16,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 128 transitions, 1452 flow [2025-02-08 08:35:16,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 128 transitions, 1366 flow, removed 8 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:16,321 INFO L231 Difference]: Finished difference. Result has 114 places, 78 transitions, 804 flow [2025-02-08 08:35:16,322 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=804, PETRI_PLACES=114, PETRI_TRANSITIONS=78} [2025-02-08 08:35:16,322 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 78 predicate places. [2025-02-08 08:35:16,322 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 78 transitions, 804 flow [2025-02-08 08:35:16,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:16,323 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:16,323 INFO L206 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] [2025-02-08 08:35:16,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-08 08:35:16,323 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:16,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:16,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1049659359, now seen corresponding path program 4 times [2025-02-08 08:35:16,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:16,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152398751] [2025-02-08 08:35:16,324 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:16,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:16,328 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:16,331 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:16,331 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:16,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:16,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152398751] [2025-02-08 08:35:16,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152398751] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:16,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627565651] [2025-02-08 08:35:16,496 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:16,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:16,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:16,499 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:16,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:35:16,556 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:16,572 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:16,572 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:16,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:16,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:16,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:16,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:16,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:16,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627565651] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:16,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:16,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:16,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784850639] [2025-02-08 08:35:16,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:16,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:16,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:16,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:16,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:16,925 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:16,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 78 transitions, 804 flow. Second operand has 17 states, 17 states have (on average 12.588235294117647) internal successors, (214), 17 states have internal predecessors, (214), 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) [2025-02-08 08:35:16,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:16,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:16,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:17,501 INFO L124 PetriNetUnfolderBase]: 328/719 cut-off events. [2025-02-08 08:35:17,502 INFO L125 PetriNetUnfolderBase]: For 4775/4867 co-relation queries the response was YES. [2025-02-08 08:35:17,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3856 conditions, 719 events. 328/719 cut-off events. For 4775/4867 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3819 event pairs, 58 based on Foata normal form. 4/699 useless extension candidates. Maximal degree in co-relation 3806. Up to 157 conditions per place. [2025-02-08 08:35:17,509 INFO L140 encePairwiseOnDemand]: 25/38 looper letters, 94 selfloop transitions, 38 changer transitions 10/154 dead transitions. [2025-02-08 08:35:17,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 154 transitions, 1639 flow [2025-02-08 08:35:17,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:35:17,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:35:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 250 transitions. [2025-02-08 08:35:17,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4699248120300752 [2025-02-08 08:35:17,511 INFO L175 Difference]: Start difference. First operand has 114 places, 78 transitions, 804 flow. Second operand 14 states and 250 transitions. [2025-02-08 08:35:17,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 154 transitions, 1639 flow [2025-02-08 08:35:17,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 154 transitions, 1554 flow, removed 15 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:17,531 INFO L231 Difference]: Finished difference. Result has 129 places, 90 transitions, 1001 flow [2025-02-08 08:35:17,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1001, PETRI_PLACES=129, PETRI_TRANSITIONS=90} [2025-02-08 08:35:17,532 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 93 predicate places. [2025-02-08 08:35:17,532 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 90 transitions, 1001 flow [2025-02-08 08:35:17,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.588235294117647) internal successors, (214), 17 states have internal predecessors, (214), 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) [2025-02-08 08:35:17,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:17,532 INFO L206 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] [2025-02-08 08:35:17,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-08 08:35:17,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:17,736 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:17,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:17,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1490202517, now seen corresponding path program 5 times [2025-02-08 08:35:17,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:17,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945011054] [2025-02-08 08:35:17,737 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:17,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:17,740 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:17,743 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:17,743 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:17,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:17,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:17,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945011054] [2025-02-08 08:35:17,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945011054] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:17,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847442855] [2025-02-08 08:35:17,862 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:17,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:17,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:17,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:17,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:35:17,918 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:17,937 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:17,937 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:17,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:17,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:17,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:17,992 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:18,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847442855] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:18,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:18,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:18,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866294060] [2025-02-08 08:35:18,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:18,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:18,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:18,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:18,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:18,068 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:18,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 90 transitions, 1001 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:18,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:18,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:18,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:18,381 INFO L124 PetriNetUnfolderBase]: 339/733 cut-off events. [2025-02-08 08:35:18,381 INFO L125 PetriNetUnfolderBase]: For 6731/6916 co-relation queries the response was YES. [2025-02-08 08:35:18,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4351 conditions, 733 events. 339/733 cut-off events. For 6731/6916 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3899 event pairs, 110 based on Foata normal form. 5/713 useless extension candidates. Maximal degree in co-relation 4295. Up to 310 conditions per place. [2025-02-08 08:35:18,386 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 95 selfloop transitions, 21 changer transitions 10/138 dead transitions. [2025-02-08 08:35:18,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 138 transitions, 1666 flow [2025-02-08 08:35:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:18,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 192 transitions. [2025-02-08 08:35:18,387 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45933014354066987 [2025-02-08 08:35:18,387 INFO L175 Difference]: Start difference. First operand has 129 places, 90 transitions, 1001 flow. Second operand 11 states and 192 transitions. [2025-02-08 08:35:18,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 138 transitions, 1666 flow [2025-02-08 08:35:18,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 138 transitions, 1551 flow, removed 39 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:18,403 INFO L231 Difference]: Finished difference. Result has 137 places, 95 transitions, 1110 flow [2025-02-08 08:35:18,403 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=924, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1110, PETRI_PLACES=137, PETRI_TRANSITIONS=95} [2025-02-08 08:35:18,403 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 101 predicate places. [2025-02-08 08:35:18,404 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 95 transitions, 1110 flow [2025-02-08 08:35:18,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:18,404 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:18,404 INFO L206 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] [2025-02-08 08:35:18,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-08 08:35:18,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:18,605 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:18,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:18,605 INFO L85 PathProgramCache]: Analyzing trace with hash 227917761, now seen corresponding path program 6 times [2025-02-08 08:35:18,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:18,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810674810] [2025-02-08 08:35:18,605 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:18,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:18,610 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:18,619 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:18,619 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:18,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:18,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:18,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:18,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810674810] [2025-02-08 08:35:18,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810674810] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:18,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108068551] [2025-02-08 08:35:18,765 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:18,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:18,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:18,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:18,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:35:18,819 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:18,835 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:18,835 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:18,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:18,837 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:18,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:18,899 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:18,899 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:18,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108068551] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:18,985 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:18,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:18,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632457673] [2025-02-08 08:35:18,985 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:18,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:18,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:18,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:18,985 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:19,011 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:19,011 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 95 transitions, 1110 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:19,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:19,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:19,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:19,332 INFO L124 PetriNetUnfolderBase]: 340/737 cut-off events. [2025-02-08 08:35:19,332 INFO L125 PetriNetUnfolderBase]: For 7560/7753 co-relation queries the response was YES. [2025-02-08 08:35:19,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4402 conditions, 737 events. 340/737 cut-off events. For 7560/7753 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4025 event pairs, 81 based on Foata normal form. 11/724 useless extension candidates. Maximal degree in co-relation 4341. Up to 230 conditions per place. [2025-02-08 08:35:19,339 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 109 selfloop transitions, 24 changer transitions 18/163 dead transitions. [2025-02-08 08:35:19,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 163 transitions, 2150 flow [2025-02-08 08:35:19,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:19,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:19,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 194 transitions. [2025-02-08 08:35:19,340 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46411483253588515 [2025-02-08 08:35:19,340 INFO L175 Difference]: Start difference. First operand has 137 places, 95 transitions, 1110 flow. Second operand 11 states and 194 transitions. [2025-02-08 08:35:19,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 163 transitions, 2150 flow [2025-02-08 08:35:19,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 163 transitions, 2111 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:19,367 INFO L231 Difference]: Finished difference. Result has 141 places, 94 transitions, 1122 flow [2025-02-08 08:35:19,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1083, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1122, PETRI_PLACES=141, PETRI_TRANSITIONS=94} [2025-02-08 08:35:19,368 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 105 predicate places. [2025-02-08 08:35:19,368 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 94 transitions, 1122 flow [2025-02-08 08:35:19,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:19,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:19,369 INFO L206 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] [2025-02-08 08:35:19,377 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-08 08:35:19,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:19,573 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:19,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1840446015, now seen corresponding path program 1 times [2025-02-08 08:35:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:19,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185179334] [2025-02-08 08:35:19,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:19,577 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:19,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:19,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:19,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:19,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:19,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:19,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185179334] [2025-02-08 08:35:19,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185179334] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:19,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325208035] [2025-02-08 08:35:19,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:19,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:19,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:19,702 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:19,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:35:19,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:19,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:19,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:19,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:19,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:19,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:19,821 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:19,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:19,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1325208035] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:19,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:19,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:19,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792770786] [2025-02-08 08:35:19,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:19,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:19,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:19,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:19,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:19,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:19,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 94 transitions, 1122 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:19,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:19,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:19,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:20,260 INFO L124 PetriNetUnfolderBase]: 395/825 cut-off events. [2025-02-08 08:35:20,261 INFO L125 PetriNetUnfolderBase]: For 7198/7319 co-relation queries the response was YES. [2025-02-08 08:35:20,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4718 conditions, 825 events. 395/825 cut-off events. For 7198/7319 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4468 event pairs, 134 based on Foata normal form. 14/807 useless extension candidates. Maximal degree in co-relation 4658. Up to 386 conditions per place. [2025-02-08 08:35:20,267 INFO L140 encePairwiseOnDemand]: 27/38 looper letters, 101 selfloop transitions, 17 changer transitions 15/149 dead transitions. [2025-02-08 08:35:20,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 149 transitions, 1809 flow [2025-02-08 08:35:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:20,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:20,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 192 transitions. [2025-02-08 08:35:20,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45933014354066987 [2025-02-08 08:35:20,268 INFO L175 Difference]: Start difference. First operand has 141 places, 94 transitions, 1122 flow. Second operand 11 states and 192 transitions. [2025-02-08 08:35:20,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 149 transitions, 1809 flow [2025-02-08 08:35:20,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 149 transitions, 1735 flow, removed 7 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:20,295 INFO L231 Difference]: Finished difference. Result has 146 places, 105 transitions, 1260 flow [2025-02-08 08:35:20,296 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1053, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1260, PETRI_PLACES=146, PETRI_TRANSITIONS=105} [2025-02-08 08:35:20,296 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 110 predicate places. [2025-02-08 08:35:20,296 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 105 transitions, 1260 flow [2025-02-08 08:35:20,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:20,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:20,298 INFO L206 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] [2025-02-08 08:35:20,306 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:35:20,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-02-08 08:35:20,502 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:20,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:20,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1718149379, now seen corresponding path program 2 times [2025-02-08 08:35:20,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:20,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714990774] [2025-02-08 08:35:20,503 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:20,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:20,507 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:20,514 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:20,515 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:20,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:20,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714990774] [2025-02-08 08:35:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714990774] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:20,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170826729] [2025-02-08 08:35:20,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:20,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:20,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:20,670 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:20,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:35:20,722 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:20,742 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:20,743 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:20,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:20,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:20,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:20,901 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:21,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170826729] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:21,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:21,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 19 [2025-02-08 08:35:21,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526408616] [2025-02-08 08:35:21,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:21,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-08 08:35:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:21,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-08 08:35:21,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-02-08 08:35:21,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:21,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 105 transitions, 1260 flow. Second operand has 19 states, 19 states have (on average 12.631578947368421) internal successors, (240), 19 states have internal predecessors, (240), 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) [2025-02-08 08:35:21,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:21,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:21,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:21,599 INFO L124 PetriNetUnfolderBase]: 390/814 cut-off events. [2025-02-08 08:35:21,599 INFO L125 PetriNetUnfolderBase]: For 7655/7758 co-relation queries the response was YES. [2025-02-08 08:35:21,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4883 conditions, 814 events. 390/814 cut-off events. For 7655/7758 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4483 event pairs, 50 based on Foata normal form. 9/805 useless extension candidates. Maximal degree in co-relation 4819. Up to 249 conditions per place. [2025-02-08 08:35:21,605 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 93 selfloop transitions, 33 changer transitions 24/166 dead transitions. [2025-02-08 08:35:21,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 166 transitions, 2048 flow [2025-02-08 08:35:21,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-08 08:35:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-02-08 08:35:21,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 243 transitions. [2025-02-08 08:35:21,606 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4567669172932331 [2025-02-08 08:35:21,606 INFO L175 Difference]: Start difference. First operand has 146 places, 105 transitions, 1260 flow. Second operand 14 states and 243 transitions. [2025-02-08 08:35:21,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 166 transitions, 2048 flow [2025-02-08 08:35:21,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 166 transitions, 1973 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:21,628 INFO L231 Difference]: Finished difference. Result has 159 places, 106 transitions, 1353 flow [2025-02-08 08:35:21,628 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1215, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1353, PETRI_PLACES=159, PETRI_TRANSITIONS=106} [2025-02-08 08:35:21,629 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 123 predicate places. [2025-02-08 08:35:21,629 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 106 transitions, 1353 flow [2025-02-08 08:35:21,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 12.631578947368421) internal successors, (240), 19 states have internal predecessors, (240), 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) [2025-02-08 08:35:21,629 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:21,629 INFO L206 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] [2025-02-08 08:35:21,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:35:21,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2025-02-08 08:35:21,830 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:21,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1542140989, now seen corresponding path program 3 times [2025-02-08 08:35:21,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:21,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082412542] [2025-02-08 08:35:21,830 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:21,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:21,834 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:21,839 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:21,839 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:21,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:21,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:21,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082412542] [2025-02-08 08:35:21,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082412542] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:21,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722650799] [2025-02-08 08:35:21,975 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:21,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:21,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:21,977 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:21,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:35:22,021 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:22,035 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:22,035 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:22,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:22,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:22,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:22,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:22,083 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722650799] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:22,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:22,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:35:22,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592055648] [2025-02-08 08:35:22,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:22,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:35:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:22,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:35:22,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:35:22,160 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:22,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 106 transitions, 1353 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:22,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:22,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:22,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:22,451 INFO L124 PetriNetUnfolderBase]: 371/776 cut-off events. [2025-02-08 08:35:22,452 INFO L125 PetriNetUnfolderBase]: For 7967/8076 co-relation queries the response was YES. [2025-02-08 08:35:22,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4983 conditions, 776 events. 371/776 cut-off events. For 7967/8076 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4115 event pairs, 89 based on Foata normal form. 8/764 useless extension candidates. Maximal degree in co-relation 4916. Up to 249 conditions per place. [2025-02-08 08:35:22,457 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 85 selfloop transitions, 42 changer transitions 7/150 dead transitions. [2025-02-08 08:35:22,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 150 transitions, 1982 flow [2025-02-08 08:35:22,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 203 transitions. [2025-02-08 08:35:22,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4451754385964912 [2025-02-08 08:35:22,458 INFO L175 Difference]: Start difference. First operand has 159 places, 106 transitions, 1353 flow. Second operand 12 states and 203 transitions. [2025-02-08 08:35:22,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 150 transitions, 1982 flow [2025-02-08 08:35:22,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 1817 flow, removed 36 selfloop flow, removed 13 redundant places. [2025-02-08 08:35:22,496 INFO L231 Difference]: Finished difference. Result has 159 places, 121 transitions, 1564 flow [2025-02-08 08:35:22,497 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1564, PETRI_PLACES=159, PETRI_TRANSITIONS=121} [2025-02-08 08:35:22,497 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 123 predicate places. [2025-02-08 08:35:22,497 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 121 transitions, 1564 flow [2025-02-08 08:35:22,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:22,497 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:22,497 INFO L206 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] [2025-02-08 08:35:22,506 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-08 08:35:22,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2025-02-08 08:35:22,698 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:22,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash -2136281835, now seen corresponding path program 4 times [2025-02-08 08:35:22,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:22,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432778638] [2025-02-08 08:35:22,699 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:22,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:22,703 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:22,705 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:22,705 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:22,705 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:22,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:22,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432778638] [2025-02-08 08:35:22,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432778638] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:22,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486325609] [2025-02-08 08:35:22,834 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:22,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:22,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:22,836 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:22,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:35:22,878 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:22,890 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:22,890 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:22,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:22,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:22,892 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:22,994 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:23,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486325609] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:23,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:23,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:23,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204255557] [2025-02-08 08:35:23,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:23,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:23,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:23,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:23,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:23,109 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:23,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 121 transitions, 1564 flow. Second operand has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:23,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:23,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:23,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:23,528 INFO L124 PetriNetUnfolderBase]: 393/819 cut-off events. [2025-02-08 08:35:23,528 INFO L125 PetriNetUnfolderBase]: For 7915/8046 co-relation queries the response was YES. [2025-02-08 08:35:23,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5230 conditions, 819 events. 393/819 cut-off events. For 7915/8046 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4460 event pairs, 73 based on Foata normal form. 15/817 useless extension candidates. Maximal degree in co-relation 5163. Up to 249 conditions per place. [2025-02-08 08:35:23,536 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 102 selfloop transitions, 47 changer transitions 11/176 dead transitions. [2025-02-08 08:35:23,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 176 transitions, 2411 flow [2025-02-08 08:35:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:23,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:23,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 209 transitions. [2025-02-08 08:35:23,537 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2025-02-08 08:35:23,537 INFO L175 Difference]: Start difference. First operand has 159 places, 121 transitions, 1564 flow. Second operand 12 states and 209 transitions. [2025-02-08 08:35:23,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 176 transitions, 2411 flow [2025-02-08 08:35:23,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 176 transitions, 2163 flow, removed 91 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:23,561 INFO L231 Difference]: Finished difference. Result has 170 places, 130 transitions, 1662 flow [2025-02-08 08:35:23,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1438, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1662, PETRI_PLACES=170, PETRI_TRANSITIONS=130} [2025-02-08 08:35:23,562 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 134 predicate places. [2025-02-08 08:35:23,562 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 130 transitions, 1662 flow [2025-02-08 08:35:23,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:23,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:23,562 INFO L206 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] [2025-02-08 08:35:23,569 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:35:23,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:23,763 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:23,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:23,763 INFO L85 PathProgramCache]: Analyzing trace with hash 352630407, now seen corresponding path program 5 times [2025-02-08 08:35:23,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:23,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310050639] [2025-02-08 08:35:23,764 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:23,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:23,767 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:23,769 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:23,769 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:23,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:23,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:23,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310050639] [2025-02-08 08:35:23,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310050639] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:23,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370980439] [2025-02-08 08:35:23,918 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:23,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:23,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:23,921 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:23,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-08 08:35:23,970 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:23,982 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:23,983 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:23,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:23,983 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:23,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:24,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:24,064 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:24,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370980439] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:24,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:24,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:24,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647304368] [2025-02-08 08:35:24,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:24,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:24,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:24,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:24,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:24,200 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:24,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 130 transitions, 1662 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:24,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:24,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:24,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:24,638 INFO L124 PetriNetUnfolderBase]: 436/898 cut-off events. [2025-02-08 08:35:24,638 INFO L125 PetriNetUnfolderBase]: For 8407/8545 co-relation queries the response was YES. [2025-02-08 08:35:24,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5763 conditions, 898 events. 436/898 cut-off events. For 8407/8545 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4975 event pairs, 83 based on Foata normal form. 16/897 useless extension candidates. Maximal degree in co-relation 5692. Up to 257 conditions per place. [2025-02-08 08:35:24,645 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 101 selfloop transitions, 57 changer transitions 11/185 dead transitions. [2025-02-08 08:35:24,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 185 transitions, 2475 flow [2025-02-08 08:35:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2025-02-08 08:35:24,646 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2025-02-08 08:35:24,646 INFO L175 Difference]: Start difference. First operand has 170 places, 130 transitions, 1662 flow. Second operand 12 states and 208 transitions. [2025-02-08 08:35:24,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 185 transitions, 2475 flow [2025-02-08 08:35:24,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 185 transitions, 2368 flow, removed 15 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:24,672 INFO L231 Difference]: Finished difference. Result has 178 places, 145 transitions, 1944 flow [2025-02-08 08:35:24,672 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1584, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1944, PETRI_PLACES=178, PETRI_TRANSITIONS=145} [2025-02-08 08:35:24,673 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 142 predicate places. [2025-02-08 08:35:24,673 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 145 transitions, 1944 flow [2025-02-08 08:35:24,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:24,673 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:24,673 INFO L206 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] [2025-02-08 08:35:24,681 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-08 08:35:24,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2025-02-08 08:35:24,874 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:24,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:24,874 INFO L85 PathProgramCache]: Analyzing trace with hash 635214331, now seen corresponding path program 6 times [2025-02-08 08:35:24,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:24,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611751700] [2025-02-08 08:35:24,874 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:24,878 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:24,883 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:24,883 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:24,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:25,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:25,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:25,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611751700] [2025-02-08 08:35:25,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611751700] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:25,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363697262] [2025-02-08 08:35:25,007 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:25,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:25,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:25,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:25,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-08 08:35:25,054 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:25,066 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:25,067 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:25,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:25,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:25,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:25,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:25,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:25,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363697262] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:25,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:25,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:35:25,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537360848] [2025-02-08 08:35:25,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:25,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:35:25,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:25,204 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:35:25,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:35:25,238 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:25,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 145 transitions, 1944 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:25,239 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:25,239 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:25,239 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:25,560 INFO L124 PetriNetUnfolderBase]: 456/939 cut-off events. [2025-02-08 08:35:25,560 INFO L125 PetriNetUnfolderBase]: For 9465/9652 co-relation queries the response was YES. [2025-02-08 08:35:25,568 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6193 conditions, 939 events. 456/939 cut-off events. For 9465/9652 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5232 event pairs, 100 based on Foata normal form. 13/934 useless extension candidates. Maximal degree in co-relation 6118. Up to 271 conditions per place. [2025-02-08 08:35:25,572 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 91 selfloop transitions, 68 changer transitions 11/186 dead transitions. [2025-02-08 08:35:25,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 186 transitions, 2619 flow [2025-02-08 08:35:25,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:25,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:25,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 207 transitions. [2025-02-08 08:35:25,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45394736842105265 [2025-02-08 08:35:25,573 INFO L175 Difference]: Start difference. First operand has 178 places, 145 transitions, 1944 flow. Second operand 12 states and 207 transitions. [2025-02-08 08:35:25,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 186 transitions, 2619 flow [2025-02-08 08:35:25,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 186 transitions, 2504 flow, removed 22 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:25,603 INFO L231 Difference]: Finished difference. Result has 186 places, 152 transitions, 2133 flow [2025-02-08 08:35:25,604 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1851, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2133, PETRI_PLACES=186, PETRI_TRANSITIONS=152} [2025-02-08 08:35:25,604 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 150 predicate places. [2025-02-08 08:35:25,604 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 152 transitions, 2133 flow [2025-02-08 08:35:25,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:25,604 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:25,604 INFO L206 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] [2025-02-08 08:35:25,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-08 08:35:25,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:25,805 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:25,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:25,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2108963169, now seen corresponding path program 7 times [2025-02-08 08:35:25,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:25,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999196512] [2025-02-08 08:35:25,806 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:25,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:25,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:25,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:25,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:25,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:25,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:25,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999196512] [2025-02-08 08:35:25,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999196512] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:25,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244725857] [2025-02-08 08:35:25,941 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:25,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:25,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:25,944 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:25,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-08 08:35:25,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:26,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:26,012 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:26,012 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:26,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:26,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:26,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244725857] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:26,180 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:26,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902024429] [2025-02-08 08:35:26,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:26,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:26,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:26,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:26,214 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:26,215 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 152 transitions, 2133 flow. Second operand has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:26,215 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:26,215 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:26,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:26,611 INFO L124 PetriNetUnfolderBase]: 457/949 cut-off events. [2025-02-08 08:35:26,611 INFO L125 PetriNetUnfolderBase]: For 10120/10323 co-relation queries the response was YES. [2025-02-08 08:35:26,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6370 conditions, 949 events. 457/949 cut-off events. For 10120/10323 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5409 event pairs, 81 based on Foata normal form. 25/957 useless extension candidates. Maximal degree in co-relation 6292. Up to 262 conditions per place. [2025-02-08 08:35:26,617 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 118 selfloop transitions, 54 changer transitions 15/203 dead transitions. [2025-02-08 08:35:26,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 203 transitions, 2923 flow [2025-02-08 08:35:26,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:26,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 212 transitions. [2025-02-08 08:35:26,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2025-02-08 08:35:26,619 INFO L175 Difference]: Start difference. First operand has 186 places, 152 transitions, 2133 flow. Second operand 12 states and 212 transitions. [2025-02-08 08:35:26,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 203 transitions, 2923 flow [2025-02-08 08:35:26,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 203 transitions, 2769 flow, removed 26 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:26,650 INFO L231 Difference]: Finished difference. Result has 192 places, 151 transitions, 2117 flow [2025-02-08 08:35:26,650 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2007, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2117, PETRI_PLACES=192, PETRI_TRANSITIONS=151} [2025-02-08 08:35:26,651 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 156 predicate places. [2025-02-08 08:35:26,651 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 151 transitions, 2117 flow [2025-02-08 08:35:26,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:26,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:26,651 INFO L206 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] [2025-02-08 08:35:26,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-08 08:35:26,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:26,856 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:26,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash -695250259, now seen corresponding path program 8 times [2025-02-08 08:35:26,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:26,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424656257] [2025-02-08 08:35:26,857 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:26,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:26,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:26,863 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:26,863 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:26,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:26,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424656257] [2025-02-08 08:35:26,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424656257] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:26,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542228864] [2025-02-08 08:35:26,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:26,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:26,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:26,993 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:26,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-08 08:35:27,036 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:27,051 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:27,051 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:27,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:27,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:27,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:27,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:27,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:27,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:27,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542228864] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:27,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:27,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:27,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883909452] [2025-02-08 08:35:27,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:27,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:27,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:27,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:27,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:27,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:27,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 151 transitions, 2117 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:27,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:27,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:27,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:27,569 INFO L124 PetriNetUnfolderBase]: 458/965 cut-off events. [2025-02-08 08:35:27,570 INFO L125 PetriNetUnfolderBase]: For 10270/10469 co-relation queries the response was YES. [2025-02-08 08:35:27,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6463 conditions, 965 events. 458/965 cut-off events. For 10270/10469 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5560 event pairs, 97 based on Foata normal form. 22/970 useless extension candidates. Maximal degree in co-relation 6383. Up to 256 conditions per place. [2025-02-08 08:35:27,579 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 117 selfloop transitions, 51 changer transitions 15/199 dead transitions. [2025-02-08 08:35:27,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 199 transitions, 2873 flow [2025-02-08 08:35:27,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:27,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:27,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 212 transitions. [2025-02-08 08:35:27,581 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4649122807017544 [2025-02-08 08:35:27,581 INFO L175 Difference]: Start difference. First operand has 192 places, 151 transitions, 2117 flow. Second operand 12 states and 212 transitions. [2025-02-08 08:35:27,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 199 transitions, 2873 flow [2025-02-08 08:35:27,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 199 transitions, 2723 flow, removed 19 selfloop flow, removed 11 redundant places. [2025-02-08 08:35:27,613 INFO L231 Difference]: Finished difference. Result has 194 places, 152 transitions, 2131 flow [2025-02-08 08:35:27,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1997, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2131, PETRI_PLACES=194, PETRI_TRANSITIONS=152} [2025-02-08 08:35:27,614 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 158 predicate places. [2025-02-08 08:35:27,614 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 152 transitions, 2131 flow [2025-02-08 08:35:27,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:27,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:27,614 INFO L206 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] [2025-02-08 08:35:27,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-02-08 08:35:27,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2025-02-08 08:35:27,815 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:27,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1190962881, now seen corresponding path program 9 times [2025-02-08 08:35:27,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:27,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528439464] [2025-02-08 08:35:27,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:27,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:27,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:27,822 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:27,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:27,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:27,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:27,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:27,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528439464] [2025-02-08 08:35:27,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528439464] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:27,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435251004] [2025-02-08 08:35:27,941 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:27,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:27,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:27,944 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:27,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-08 08:35:27,990 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:28,003 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:28,003 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:28,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:28,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:28,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:28,046 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:28,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435251004] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:28,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:28,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:35:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636072056] [2025-02-08 08:35:28,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:28,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:35:28,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:28,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:35:28,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:35:28,120 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:28,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 152 transitions, 2131 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:28,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:28,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:28,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:28,438 INFO L124 PetriNetUnfolderBase]: 463/979 cut-off events. [2025-02-08 08:35:28,438 INFO L125 PetriNetUnfolderBase]: For 10804/10997 co-relation queries the response was YES. [2025-02-08 08:35:28,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6571 conditions, 979 events. 463/979 cut-off events. For 10804/10997 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5661 event pairs, 112 based on Foata normal form. 13/974 useless extension candidates. Maximal degree in co-relation 6490. Up to 300 conditions per place. [2025-02-08 08:35:28,446 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 110 selfloop transitions, 58 changer transitions 11/195 dead transitions. [2025-02-08 08:35:28,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 195 transitions, 2856 flow [2025-02-08 08:35:28,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:28,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 210 transitions. [2025-02-08 08:35:28,447 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4605263157894737 [2025-02-08 08:35:28,447 INFO L175 Difference]: Start difference. First operand has 194 places, 152 transitions, 2131 flow. Second operand 12 states and 210 transitions. [2025-02-08 08:35:28,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 195 transitions, 2856 flow [2025-02-08 08:35:28,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 195 transitions, 2731 flow, removed 15 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:28,481 INFO L231 Difference]: Finished difference. Result has 200 places, 162 transitions, 2342 flow [2025-02-08 08:35:28,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2030, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2342, PETRI_PLACES=200, PETRI_TRANSITIONS=162} [2025-02-08 08:35:28,481 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 164 predicate places. [2025-02-08 08:35:28,482 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 162 transitions, 2342 flow [2025-02-08 08:35:28,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:28,482 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:28,482 INFO L206 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] [2025-02-08 08:35:28,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-08 08:35:28,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:28,682 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:28,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:28,683 INFO L85 PathProgramCache]: Analyzing trace with hash -16529607, now seen corresponding path program 10 times [2025-02-08 08:35:28,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:28,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398056196] [2025-02-08 08:35:28,683 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:28,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:28,686 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:28,688 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:28,688 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:28,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:28,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:28,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:28,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398056196] [2025-02-08 08:35:28,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398056196] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:28,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929090188] [2025-02-08 08:35:28,825 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:28,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:28,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:28,828 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:28,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-08 08:35:28,874 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:28,886 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:28,886 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:28,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:28,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:28,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:28,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:29,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:29,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929090188] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:29,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:29,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:29,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781108986] [2025-02-08 08:35:29,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:29,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:29,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:29,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:29,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:29,092 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:29,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 162 transitions, 2342 flow. Second operand has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:29,092 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:29,092 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:29,092 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:29,451 INFO L124 PetriNetUnfolderBase]: 457/964 cut-off events. [2025-02-08 08:35:29,451 INFO L125 PetriNetUnfolderBase]: For 11064/11280 co-relation queries the response was YES. [2025-02-08 08:35:29,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6607 conditions, 964 events. 457/964 cut-off events. For 11064/11280 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5589 event pairs, 89 based on Foata normal form. 25/972 useless extension candidates. Maximal degree in co-relation 6523. Up to 300 conditions per place. [2025-02-08 08:35:29,460 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 114 selfloop transitions, 65 changer transitions 8/203 dead transitions. [2025-02-08 08:35:29,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 203 transitions, 3025 flow [2025-02-08 08:35:29,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:29,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:29,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 206 transitions. [2025-02-08 08:35:29,461 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4517543859649123 [2025-02-08 08:35:29,461 INFO L175 Difference]: Start difference. First operand has 200 places, 162 transitions, 2342 flow. Second operand 12 states and 206 transitions. [2025-02-08 08:35:29,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 203 transitions, 3025 flow [2025-02-08 08:35:29,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 203 transitions, 2909 flow, removed 23 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:29,501 INFO L231 Difference]: Finished difference. Result has 205 places, 162 transitions, 2365 flow [2025-02-08 08:35:29,501 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2240, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2365, PETRI_PLACES=205, PETRI_TRANSITIONS=162} [2025-02-08 08:35:29,501 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 169 predicate places. [2025-02-08 08:35:29,501 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 162 transitions, 2365 flow [2025-02-08 08:35:29,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:29,502 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:29,502 INFO L206 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] [2025-02-08 08:35:29,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:29,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:29,702 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:29,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:29,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1491907297, now seen corresponding path program 11 times [2025-02-08 08:35:29,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:29,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314837796] [2025-02-08 08:35:29,703 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:29,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:29,706 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:29,707 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:29,708 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:29,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:29,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314837796] [2025-02-08 08:35:29,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314837796] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:29,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555991817] [2025-02-08 08:35:29,837 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:29,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:29,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:29,840 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:29,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-08 08:35:29,890 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:29,904 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:29,904 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:29,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:29,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:29,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:30,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:30,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555991817] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:30,084 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:30,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:30,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988952538] [2025-02-08 08:35:30,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:30,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:30,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:30,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:30,085 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:30,096 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:30,097 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 162 transitions, 2365 flow. Second operand has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:30,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:30,097 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:30,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:30,572 INFO L124 PetriNetUnfolderBase]: 451/952 cut-off events. [2025-02-08 08:35:30,572 INFO L125 PetriNetUnfolderBase]: For 10553/10809 co-relation queries the response was YES. [2025-02-08 08:35:30,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 952 events. 451/952 cut-off events. For 10553/10809 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5496 event pairs, 91 based on Foata normal form. 25/960 useless extension candidates. Maximal degree in co-relation 6484. Up to 302 conditions per place. [2025-02-08 08:35:30,579 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 113 selfloop transitions, 63 changer transitions 6/198 dead transitions. [2025-02-08 08:35:30,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 198 transitions, 2998 flow [2025-02-08 08:35:30,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:30,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:30,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:35:30,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:35:30,580 INFO L175 Difference]: Start difference. First operand has 205 places, 162 transitions, 2365 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:35:30,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 198 transitions, 2998 flow [2025-02-08 08:35:30,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 198 transitions, 2858 flow, removed 5 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:30,613 INFO L231 Difference]: Finished difference. Result has 206 places, 161 transitions, 2329 flow [2025-02-08 08:35:30,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2231, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2329, PETRI_PLACES=206, PETRI_TRANSITIONS=161} [2025-02-08 08:35:30,614 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 170 predicate places. [2025-02-08 08:35:30,614 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 161 transitions, 2329 flow [2025-02-08 08:35:30,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:30,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:30,614 INFO L206 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] [2025-02-08 08:35:30,620 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:30,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2025-02-08 08:35:30,815 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:30,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash -934274091, now seen corresponding path program 12 times [2025-02-08 08:35:30,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:30,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839585034] [2025-02-08 08:35:30,816 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:30,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:30,819 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:30,823 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:30,823 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:30,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:30,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839585034] [2025-02-08 08:35:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839585034] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638225138] [2025-02-08 08:35:30,948 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:30,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:30,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:30,951 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:30,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-08 08:35:31,003 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:31,021 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:31,021 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:31,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:31,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:31,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:31,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:31,132 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:31,214 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:31,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638225138] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:31,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:31,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2025-02-08 08:35:31,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907430870] [2025-02-08 08:35:31,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:31,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-08 08:35:31,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:31,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-08 08:35:31,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2025-02-08 08:35:31,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:31,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 161 transitions, 2329 flow. Second operand has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:31,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:31,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:31,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:31,700 INFO L124 PetriNetUnfolderBase]: 449/942 cut-off events. [2025-02-08 08:35:31,700 INFO L125 PetriNetUnfolderBase]: For 10129/10385 co-relation queries the response was YES. [2025-02-08 08:35:31,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6482 conditions, 942 events. 449/942 cut-off events. For 10129/10385 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5412 event pairs, 88 based on Foata normal form. 25/950 useless extension candidates. Maximal degree in co-relation 6398. Up to 291 conditions per place. [2025-02-08 08:35:31,707 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 106 selfloop transitions, 57 changer transitions 18/197 dead transitions. [2025-02-08 08:35:31,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 197 transitions, 2955 flow [2025-02-08 08:35:31,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:31,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:31,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:35:31,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:35:31,708 INFO L175 Difference]: Start difference. First operand has 206 places, 161 transitions, 2329 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:35:31,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 197 transitions, 2955 flow [2025-02-08 08:35:31,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 197 transitions, 2829 flow, removed 1 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:31,739 INFO L231 Difference]: Finished difference. Result has 207 places, 154 transitions, 2210 flow [2025-02-08 08:35:31,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2203, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2210, PETRI_PLACES=207, PETRI_TRANSITIONS=154} [2025-02-08 08:35:31,739 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 171 predicate places. [2025-02-08 08:35:31,739 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 154 transitions, 2210 flow [2025-02-08 08:35:31,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 12.470588235294118) internal successors, (212), 17 states have internal predecessors, (212), 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) [2025-02-08 08:35:31,740 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:31,740 INFO L206 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] [2025-02-08 08:35:31,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-08 08:35:31,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2025-02-08 08:35:31,940 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:31,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -316513971, now seen corresponding path program 13 times [2025-02-08 08:35:31,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:31,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322455784] [2025-02-08 08:35:31,941 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:31,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:31,944 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:31,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:31,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:31,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:32,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:32,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:32,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322455784] [2025-02-08 08:35:32,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322455784] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:32,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472764007] [2025-02-08 08:35:32,044 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:32,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:32,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:32,045 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:32,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-08 08:35:32,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:32,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:32,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:32,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:32,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:32,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:32,168 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:32,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:32,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472764007] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:32,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:32,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:32,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012168934] [2025-02-08 08:35:32,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:32,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:32,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:32,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:32,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:32,260 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:32,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 154 transitions, 2210 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:32,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:32,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:32,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:32,661 INFO L124 PetriNetUnfolderBase]: 442/928 cut-off events. [2025-02-08 08:35:32,661 INFO L125 PetriNetUnfolderBase]: For 10100/10348 co-relation queries the response was YES. [2025-02-08 08:35:32,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6368 conditions, 928 events. 442/928 cut-off events. For 10100/10348 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5240 event pairs, 95 based on Foata normal form. 21/932 useless extension candidates. Maximal degree in co-relation 6284. Up to 273 conditions per place. [2025-02-08 08:35:32,669 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 115 selfloop transitions, 54 changer transitions 11/196 dead transitions. [2025-02-08 08:35:32,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 196 transitions, 2907 flow [2025-02-08 08:35:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:32,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:32,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 210 transitions. [2025-02-08 08:35:32,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4605263157894737 [2025-02-08 08:35:32,670 INFO L175 Difference]: Start difference. First operand has 207 places, 154 transitions, 2210 flow. Second operand 12 states and 210 transitions. [2025-02-08 08:35:32,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 196 transitions, 2907 flow [2025-02-08 08:35:32,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 196 transitions, 2726 flow, removed 19 selfloop flow, removed 12 redundant places. [2025-02-08 08:35:32,704 INFO L231 Difference]: Finished difference. Result has 199 places, 156 transitions, 2215 flow [2025-02-08 08:35:32,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2053, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2215, PETRI_PLACES=199, PETRI_TRANSITIONS=156} [2025-02-08 08:35:32,704 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 163 predicate places. [2025-02-08 08:35:32,704 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 156 transitions, 2215 flow [2025-02-08 08:35:32,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:32,704 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:32,704 INFO L206 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] [2025-02-08 08:35:32,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:32,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:32,905 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:32,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:32,905 INFO L85 PathProgramCache]: Analyzing trace with hash 272338025, now seen corresponding path program 7 times [2025-02-08 08:35:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243426074] [2025-02-08 08:35:32,906 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:32,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:32,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:32,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:32,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:33,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:33,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243426074] [2025-02-08 08:35:33,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243426074] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:33,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847264891] [2025-02-08 08:35:33,031 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:33,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:33,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:33,035 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:33,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-08 08:35:33,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:33,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:33,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:33,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:33,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:33,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:33,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:33,150 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:33,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:33,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847264891] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:33,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:33,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:33,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50256465] [2025-02-08 08:35:33,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:33,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:33,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:33,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:33,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:33,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:33,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 156 transitions, 2215 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:33,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:33,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:33,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:33,572 INFO L124 PetriNetUnfolderBase]: 471/972 cut-off events. [2025-02-08 08:35:33,572 INFO L125 PetriNetUnfolderBase]: For 11797/11934 co-relation queries the response was YES. [2025-02-08 08:35:33,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6709 conditions, 972 events. 471/972 cut-off events. For 11797/11934 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5500 event pairs, 185 based on Foata normal form. 9/961 useless extension candidates. Maximal degree in co-relation 6626. Up to 550 conditions per place. [2025-02-08 08:35:33,579 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 139 selfloop transitions, 37 changer transitions 12/202 dead transitions. [2025-02-08 08:35:33,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 202 transitions, 3189 flow [2025-02-08 08:35:33,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:33,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:33,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2025-02-08 08:35:33,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45215311004784686 [2025-02-08 08:35:33,580 INFO L175 Difference]: Start difference. First operand has 199 places, 156 transitions, 2215 flow. Second operand 11 states and 189 transitions. [2025-02-08 08:35:33,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 202 transitions, 3189 flow [2025-02-08 08:35:33,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 202 transitions, 3056 flow, removed 11 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:33,613 INFO L231 Difference]: Finished difference. Result has 202 places, 165 transitions, 2414 flow [2025-02-08 08:35:33,614 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2414, PETRI_PLACES=202, PETRI_TRANSITIONS=165} [2025-02-08 08:35:33,614 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 166 predicate places. [2025-02-08 08:35:33,614 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 165 transitions, 2414 flow [2025-02-08 08:35:33,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:33,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:33,614 INFO L206 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] [2025-02-08 08:35:33,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-08 08:35:33,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:33,815 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:33,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:33,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1481971871, now seen corresponding path program 8 times [2025-02-08 08:35:33,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:33,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255529325] [2025-02-08 08:35:33,815 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:33,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:33,822 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:33,822 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:33,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:33,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255529325] [2025-02-08 08:35:33,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255529325] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:33,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683733214] [2025-02-08 08:35:33,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:33,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:33,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:33,950 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:33,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-08 08:35:34,004 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:34,019 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:34,020 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:34,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:34,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:34,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:34,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:34,056 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:34,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:34,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683733214] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:34,106 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:34,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:34,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096211769] [2025-02-08 08:35:34,107 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:34,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:34,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:34,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:34,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:34,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:34,132 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 165 transitions, 2414 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:34,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:34,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:34,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:34,512 INFO L124 PetriNetUnfolderBase]: 464/963 cut-off events. [2025-02-08 08:35:34,512 INFO L125 PetriNetUnfolderBase]: For 10979/11098 co-relation queries the response was YES. [2025-02-08 08:35:34,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6622 conditions, 963 events. 464/963 cut-off events. For 10979/11098 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5456 event pairs, 187 based on Foata normal form. 9/952 useless extension candidates. Maximal degree in co-relation 6537. Up to 550 conditions per place. [2025-02-08 08:35:34,520 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 138 selfloop transitions, 41 changer transitions 10/203 dead transitions. [2025-02-08 08:35:34,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 203 transitions, 3158 flow [2025-02-08 08:35:34,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2025-02-08 08:35:34,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:35:34,521 INFO L175 Difference]: Start difference. First operand has 202 places, 165 transitions, 2414 flow. Second operand 11 states and 187 transitions. [2025-02-08 08:35:34,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 203 transitions, 3158 flow [2025-02-08 08:35:34,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 203 transitions, 3067 flow, removed 30 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:34,576 INFO L231 Difference]: Finished difference. Result has 209 places, 167 transitions, 2491 flow [2025-02-08 08:35:34,576 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2339, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2491, PETRI_PLACES=209, PETRI_TRANSITIONS=167} [2025-02-08 08:35:34,576 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 173 predicate places. [2025-02-08 08:35:34,576 INFO L471 AbstractCegarLoop]: Abstraction has has 209 places, 167 transitions, 2491 flow [2025-02-08 08:35:34,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:34,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:34,576 INFO L206 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] [2025-02-08 08:35:34,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-08 08:35:34,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2025-02-08 08:35:34,777 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:34,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:34,778 INFO L85 PathProgramCache]: Analyzing trace with hash 589483423, now seen corresponding path program 9 times [2025-02-08 08:35:34,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:34,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150345644] [2025-02-08 08:35:34,778 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:34,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:34,781 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:34,786 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:34,786 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 08:35:34,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:34,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150345644] [2025-02-08 08:35:34,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150345644] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:34,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415097131] [2025-02-08 08:35:34,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:34,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:34,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:34,898 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:34,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-08 08:35:34,942 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:34,955 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:34,955 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-02-08 08:35:34,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:34,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:34,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:34,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:35,013 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:35,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415097131] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:35,014 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:35,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:35,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083724766] [2025-02-08 08:35:35,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:35,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:35,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:35,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:35,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:35,034 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:35,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 167 transitions, 2491 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:35,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:35,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:35,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:35,336 INFO L124 PetriNetUnfolderBase]: 465/967 cut-off events. [2025-02-08 08:35:35,337 INFO L125 PetriNetUnfolderBase]: For 11309/11426 co-relation queries the response was YES. [2025-02-08 08:35:35,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6622 conditions, 967 events. 465/967 cut-off events. For 11309/11426 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5514 event pairs, 179 based on Foata normal form. 9/956 useless extension candidates. Maximal degree in co-relation 6534. Up to 550 conditions per place. [2025-02-08 08:35:35,346 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 162 selfloop transitions, 33 changer transitions 9/218 dead transitions. [2025-02-08 08:35:35,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 218 transitions, 3486 flow [2025-02-08 08:35:35,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 191 transitions. [2025-02-08 08:35:35,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4569377990430622 [2025-02-08 08:35:35,347 INFO L175 Difference]: Start difference. First operand has 209 places, 167 transitions, 2491 flow. Second operand 11 states and 191 transitions. [2025-02-08 08:35:35,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 218 transitions, 3486 flow [2025-02-08 08:35:35,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 218 transitions, 3397 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:35,381 INFO L231 Difference]: Finished difference. Result has 212 places, 167 transitions, 2495 flow [2025-02-08 08:35:35,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2432, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2495, PETRI_PLACES=212, PETRI_TRANSITIONS=167} [2025-02-08 08:35:35,382 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 176 predicate places. [2025-02-08 08:35:35,382 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 167 transitions, 2495 flow [2025-02-08 08:35:35,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:35,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:35,382 INFO L206 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] [2025-02-08 08:35:35,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-08 08:35:35,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:35,583 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:35,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:35,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1757399129, now seen corresponding path program 10 times [2025-02-08 08:35:35,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:35,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529780009] [2025-02-08 08:35:35,583 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:35,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:35,587 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:35,589 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:35,589 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:35,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:35,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:35,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529780009] [2025-02-08 08:35:35,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529780009] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:35,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804835946] [2025-02-08 08:35:35,725 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:35,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:35,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:35,727 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:35,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-08 08:35:35,773 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:35,785 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:35,786 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:35,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:35,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:35,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:35,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:35,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804835946] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:35,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:35,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:35,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957043825] [2025-02-08 08:35:35,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:35,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:35,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:35,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:35,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:35,893 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:35,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 167 transitions, 2495 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:35,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:35,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:35,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:36,234 INFO L124 PetriNetUnfolderBase]: 462/964 cut-off events. [2025-02-08 08:35:36,234 INFO L125 PetriNetUnfolderBase]: For 10606/10723 co-relation queries the response was YES. [2025-02-08 08:35:36,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6606 conditions, 964 events. 462/964 cut-off events. For 10606/10723 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5520 event pairs, 180 based on Foata normal form. 9/953 useless extension candidates. Maximal degree in co-relation 6520. Up to 550 conditions per place. [2025-02-08 08:35:36,245 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 151 selfloop transitions, 37 changer transitions 8/210 dead transitions. [2025-02-08 08:35:36,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 210 transitions, 3366 flow [2025-02-08 08:35:36,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:36,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:36,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:35:36,245 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:35:36,245 INFO L175 Difference]: Start difference. First operand has 212 places, 167 transitions, 2495 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:35:36,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 210 transitions, 3366 flow [2025-02-08 08:35:36,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 210 transitions, 3310 flow, removed 4 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:36,281 INFO L231 Difference]: Finished difference. Result has 216 places, 169 transitions, 2583 flow [2025-02-08 08:35:36,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2446, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2583, PETRI_PLACES=216, PETRI_TRANSITIONS=169} [2025-02-08 08:35:36,281 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 180 predicate places. [2025-02-08 08:35:36,282 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 169 transitions, 2583 flow [2025-02-08 08:35:36,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:36,282 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:36,282 INFO L206 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] [2025-02-08 08:35:36,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-08 08:35:36,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:36,483 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:36,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:36,483 INFO L85 PathProgramCache]: Analyzing trace with hash 257521975, now seen corresponding path program 14 times [2025-02-08 08:35:36,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:36,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382624810] [2025-02-08 08:35:36,483 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:36,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:36,486 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:36,489 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:36,489 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:36,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:36,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382624810] [2025-02-08 08:35:36,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382624810] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:36,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928559071] [2025-02-08 08:35:36,578 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:36,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:36,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:36,580 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:36,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-08 08:35:36,626 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:36,639 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:36,639 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:36,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:36,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:36,640 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:36,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:36,702 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:36,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928559071] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:36,769 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:36,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:36,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800374032] [2025-02-08 08:35:36,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:36,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:36,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:36,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:36,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:36,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:36,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 169 transitions, 2583 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:36,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:36,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:36,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:37,183 INFO L124 PetriNetUnfolderBase]: 460/961 cut-off events. [2025-02-08 08:35:37,183 INFO L125 PetriNetUnfolderBase]: For 10678/10904 co-relation queries the response was YES. [2025-02-08 08:35:37,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6643 conditions, 961 events. 460/961 cut-off events. For 10678/10904 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5463 event pairs, 106 based on Foata normal form. 21/965 useless extension candidates. Maximal degree in co-relation 6555. Up to 290 conditions per place. [2025-02-08 08:35:37,191 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 122 selfloop transitions, 60 changer transitions 8/205 dead transitions. [2025-02-08 08:35:37,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 205 transitions, 3171 flow [2025-02-08 08:35:37,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:37,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:37,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 207 transitions. [2025-02-08 08:35:37,192 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45394736842105265 [2025-02-08 08:35:37,192 INFO L175 Difference]: Start difference. First operand has 216 places, 169 transitions, 2583 flow. Second operand 12 states and 207 transitions. [2025-02-08 08:35:37,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 205 transitions, 3171 flow [2025-02-08 08:35:37,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 205 transitions, 3097 flow, removed 9 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:37,227 INFO L231 Difference]: Finished difference. Result has 221 places, 169 transitions, 2626 flow [2025-02-08 08:35:37,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2509, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2626, PETRI_PLACES=221, PETRI_TRANSITIONS=169} [2025-02-08 08:35:37,228 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 185 predicate places. [2025-02-08 08:35:37,228 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 169 transitions, 2626 flow [2025-02-08 08:35:37,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:37,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:37,228 INFO L206 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] [2025-02-08 08:35:37,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-08 08:35:37,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2025-02-08 08:35:37,429 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:37,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:37,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1492433251, now seen corresponding path program 11 times [2025-02-08 08:35:37,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:37,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063605732] [2025-02-08 08:35:37,429 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:37,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:37,433 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:37,434 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:37,434 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-02-08 08:35:37,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:37,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063605732] [2025-02-08 08:35:37,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063605732] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:37,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698373857] [2025-02-08 08:35:37,521 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:37,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:37,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:37,523 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:37,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-08 08:35:37,569 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:37,583 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:37,583 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-02-08 08:35:37,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:37,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:37,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:37,636 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:37,688 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:37,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698373857] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:37,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131300407] [2025-02-08 08:35:37,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:37,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:37,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:37,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:37,713 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:37,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 169 transitions, 2626 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:37,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:37,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:37,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:38,043 INFO L124 PetriNetUnfolderBase]: 454/949 cut-off events. [2025-02-08 08:35:38,043 INFO L125 PetriNetUnfolderBase]: For 11619/11738 co-relation queries the response was YES. [2025-02-08 08:35:38,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6634 conditions, 949 events. 454/949 cut-off events. For 11619/11738 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5437 event pairs, 178 based on Foata normal form. 9/938 useless extension candidates. Maximal degree in co-relation 6546. Up to 543 conditions per place. [2025-02-08 08:35:38,051 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 160 selfloop transitions, 31 changer transitions 12/217 dead transitions. [2025-02-08 08:35:38,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 217 transitions, 3573 flow [2025-02-08 08:35:38,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:38,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:38,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:35:38,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:35:38,052 INFO L175 Difference]: Start difference. First operand has 221 places, 169 transitions, 2626 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:35:38,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 217 transitions, 3573 flow [2025-02-08 08:35:38,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 217 transitions, 3447 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:38,086 INFO L231 Difference]: Finished difference. Result has 220 places, 165 transitions, 2483 flow [2025-02-08 08:35:38,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2502, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2483, PETRI_PLACES=220, PETRI_TRANSITIONS=165} [2025-02-08 08:35:38,089 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 184 predicate places. [2025-02-08 08:35:38,089 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 165 transitions, 2483 flow [2025-02-08 08:35:38,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:38,089 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:38,089 INFO L206 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] [2025-02-08 08:35:38,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-08 08:35:38,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2025-02-08 08:35:38,290 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:38,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:38,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1989446469, now seen corresponding path program 15 times [2025-02-08 08:35:38,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:38,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016371340] [2025-02-08 08:35:38,291 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:38,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:38,295 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:38,299 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:38,300 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:38,300 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:38,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:38,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:38,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016371340] [2025-02-08 08:35:38,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016371340] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:38,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053227223] [2025-02-08 08:35:38,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:38,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:38,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:38,426 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:38,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-08 08:35:38,480 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:38,497 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:38,497 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:38,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:38,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:38,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:38,590 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:38,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053227223] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:38,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:38,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:38,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389319967] [2025-02-08 08:35:38,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:38,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:38,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:38,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:38,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:38,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:38,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 165 transitions, 2483 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:38,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:38,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:38,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:39,104 INFO L124 PetriNetUnfolderBase]: 460/961 cut-off events. [2025-02-08 08:35:39,104 INFO L125 PetriNetUnfolderBase]: For 10335/10561 co-relation queries the response was YES. [2025-02-08 08:35:39,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6605 conditions, 961 events. 460/961 cut-off events. For 10335/10561 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5450 event pairs, 106 based on Foata normal form. 21/965 useless extension candidates. Maximal degree in co-relation 6518. Up to 284 conditions per place. [2025-02-08 08:35:39,111 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 116 selfloop transitions, 64 changer transitions 8/203 dead transitions. [2025-02-08 08:35:39,111 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 203 transitions, 3132 flow [2025-02-08 08:35:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2025-02-08 08:35:39,112 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2025-02-08 08:35:39,112 INFO L175 Difference]: Start difference. First operand has 220 places, 165 transitions, 2483 flow. Second operand 12 states and 205 transitions. [2025-02-08 08:35:39,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 203 transitions, 3132 flow [2025-02-08 08:35:39,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 203 transitions, 3042 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:39,146 INFO L231 Difference]: Finished difference. Result has 219 places, 170 transitions, 2617 flow [2025-02-08 08:35:39,146 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2393, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2617, PETRI_PLACES=219, PETRI_TRANSITIONS=170} [2025-02-08 08:35:39,146 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 183 predicate places. [2025-02-08 08:35:39,146 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 170 transitions, 2617 flow [2025-02-08 08:35:39,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:39,147 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:39,147 INFO L206 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] [2025-02-08 08:35:39,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:39,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:39,347 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:39,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1881785929, now seen corresponding path program 12 times [2025-02-08 08:35:39,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:39,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613873846] [2025-02-08 08:35:39,348 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:39,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:39,351 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:39,356 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:39,356 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-02-08 08:35:39,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:39,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:39,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:39,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613873846] [2025-02-08 08:35:39,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613873846] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:39,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138003451] [2025-02-08 08:35:39,445 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:39,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:39,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:39,447 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:39,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-08 08:35:39,493 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 3 equivalence classes. [2025-02-08 08:35:39,506 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:39,506 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-02-08 08:35:39,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:39,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:39,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:39,543 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:39,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:39,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138003451] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:39,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:39,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:39,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135938086] [2025-02-08 08:35:39,587 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:39,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:39,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:39,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:39,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:39,606 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:39,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 170 transitions, 2617 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:39,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:39,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:39,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:39,911 INFO L124 PetriNetUnfolderBase]: 460/964 cut-off events. [2025-02-08 08:35:39,912 INFO L125 PetriNetUnfolderBase]: For 11801/11914 co-relation queries the response was YES. [2025-02-08 08:35:39,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6686 conditions, 964 events. 460/964 cut-off events. For 11801/11914 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5550 event pairs, 177 based on Foata normal form. 9/953 useless extension candidates. Maximal degree in co-relation 6597. Up to 556 conditions per place. [2025-02-08 08:35:39,919 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 162 selfloop transitions, 29 changer transitions 18/223 dead transitions. [2025-02-08 08:35:39,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 223 transitions, 3618 flow [2025-02-08 08:35:39,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2025-02-08 08:35:39,919 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45215311004784686 [2025-02-08 08:35:39,919 INFO L175 Difference]: Start difference. First operand has 219 places, 170 transitions, 2617 flow. Second operand 11 states and 189 transitions. [2025-02-08 08:35:39,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 223 transitions, 3618 flow [2025-02-08 08:35:39,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 223 transitions, 3500 flow, removed 5 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:39,951 INFO L231 Difference]: Finished difference. Result has 224 places, 168 transitions, 2511 flow [2025-02-08 08:35:39,951 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2501, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2511, PETRI_PLACES=224, PETRI_TRANSITIONS=168} [2025-02-08 08:35:39,952 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 188 predicate places. [2025-02-08 08:35:39,952 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 168 transitions, 2511 flow [2025-02-08 08:35:39,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:39,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:39,952 INFO L206 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] [2025-02-08 08:35:39,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-08 08:35:40,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2025-02-08 08:35:40,153 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:40,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:40,153 INFO L85 PathProgramCache]: Analyzing trace with hash -275082051, now seen corresponding path program 16 times [2025-02-08 08:35:40,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:40,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280930980] [2025-02-08 08:35:40,153 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:40,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:40,156 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:40,158 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:40,158 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:40,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:40,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280930980] [2025-02-08 08:35:40,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280930980] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:40,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658980112] [2025-02-08 08:35:40,258 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:40,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:40,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:40,260 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:40,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-08 08:35:40,306 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:40,319 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:40,319 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:40,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:40,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:40,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:40,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:40,468 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:40,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658980112] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:40,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:40,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:40,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453697526] [2025-02-08 08:35:40,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:40,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:40,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:40,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:40,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:40,498 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:40,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 168 transitions, 2511 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:40,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:40,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:40,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:40,832 INFO L124 PetriNetUnfolderBase]: 453/949 cut-off events. [2025-02-08 08:35:40,833 INFO L125 PetriNetUnfolderBase]: For 10136/10362 co-relation queries the response was YES. [2025-02-08 08:35:40,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6507 conditions, 949 events. 453/949 cut-off events. For 10136/10362 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5363 event pairs, 101 based on Foata normal form. 21/953 useless extension candidates. Maximal degree in co-relation 6416. Up to 281 conditions per place. [2025-02-08 08:35:40,840 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 117 selfloop transitions, 62 changer transitions 8/202 dead transitions. [2025-02-08 08:35:40,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 202 transitions, 3091 flow [2025-02-08 08:35:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:40,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2025-02-08 08:35:40,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2025-02-08 08:35:40,841 INFO L175 Difference]: Start difference. First operand has 224 places, 168 transitions, 2511 flow. Second operand 12 states and 208 transitions. [2025-02-08 08:35:40,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 202 transitions, 3091 flow [2025-02-08 08:35:40,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 202 transitions, 3023 flow, removed 5 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:40,873 INFO L231 Difference]: Finished difference. Result has 222 places, 168 transitions, 2570 flow [2025-02-08 08:35:40,874 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2443, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2570, PETRI_PLACES=222, PETRI_TRANSITIONS=168} [2025-02-08 08:35:40,874 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 186 predicate places. [2025-02-08 08:35:40,874 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 168 transitions, 2570 flow [2025-02-08 08:35:40,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:40,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:40,874 INFO L206 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] [2025-02-08 08:35:40,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-02-08 08:35:41,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2025-02-08 08:35:41,075 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:41,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:41,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1591817015, now seen corresponding path program 13 times [2025-02-08 08:35:41,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:41,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599723575] [2025-02-08 08:35:41,076 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:41,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:41,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:41,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:41,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:41,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:41,184 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:41,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:41,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599723575] [2025-02-08 08:35:41,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599723575] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:41,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156320629] [2025-02-08 08:35:41,185 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:41,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:41,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:41,187 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:41,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-08 08:35:41,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:41,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:41,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:41,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:41,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:41,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:41,290 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:41,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156320629] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:41,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:41,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:41,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537209699] [2025-02-08 08:35:41,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:41,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:41,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:41,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:41,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:41,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:41,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 168 transitions, 2570 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:41,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:41,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:41,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:41,714 INFO L124 PetriNetUnfolderBase]: 452/947 cut-off events. [2025-02-08 08:35:41,715 INFO L125 PetriNetUnfolderBase]: For 11640/11753 co-relation queries the response was YES. [2025-02-08 08:35:41,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6576 conditions, 947 events. 452/947 cut-off events. For 11640/11753 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5373 event pairs, 177 based on Foata normal form. 9/936 useless extension candidates. Maximal degree in co-relation 6487. Up to 549 conditions per place. [2025-02-08 08:35:41,723 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 155 selfloop transitions, 33 changer transitions 8/210 dead transitions. [2025-02-08 08:35:41,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 210 transitions, 3416 flow [2025-02-08 08:35:41,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2025-02-08 08:35:41,724 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45215311004784686 [2025-02-08 08:35:41,724 INFO L175 Difference]: Start difference. First operand has 222 places, 168 transitions, 2570 flow. Second operand 11 states and 189 transitions. [2025-02-08 08:35:41,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 210 transitions, 3416 flow [2025-02-08 08:35:41,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 210 transitions, 3276 flow, removed 5 selfloop flow, removed 11 redundant places. [2025-02-08 08:35:41,757 INFO L231 Difference]: Finished difference. Result has 223 places, 171 transitions, 2579 flow [2025-02-08 08:35:41,757 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2434, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2579, PETRI_PLACES=223, PETRI_TRANSITIONS=171} [2025-02-08 08:35:41,757 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 187 predicate places. [2025-02-08 08:35:41,757 INFO L471 AbstractCegarLoop]: Abstraction has has 223 places, 171 transitions, 2579 flow [2025-02-08 08:35:41,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:41,758 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:41,758 INFO L206 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] [2025-02-08 08:35:41,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-02-08 08:35:41,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:41,958 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:41,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:41,959 INFO L85 PathProgramCache]: Analyzing trace with hash 2019781387, now seen corresponding path program 14 times [2025-02-08 08:35:41,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:41,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918800912] [2025-02-08 08:35:41,959 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:41,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:41,963 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:41,966 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:41,966 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:41,966 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:42,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:42,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918800912] [2025-02-08 08:35:42,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918800912] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:42,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360940784] [2025-02-08 08:35:42,055 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:42,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:42,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:42,057 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:42,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-02-08 08:35:42,107 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:42,123 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:42,123 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:42,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:42,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:42,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:42,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:42,212 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:42,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360940784] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:42,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:42,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:42,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51342679] [2025-02-08 08:35:42,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:42,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:42,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:42,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:42,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:42,228 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:42,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 171 transitions, 2579 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:42,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:42,229 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:42,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:42,561 INFO L124 PetriNetUnfolderBase]: 458/965 cut-off events. [2025-02-08 08:35:42,562 INFO L125 PetriNetUnfolderBase]: For 10944/11061 co-relation queries the response was YES. [2025-02-08 08:35:42,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6578 conditions, 965 events. 458/965 cut-off events. For 10944/11061 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5566 event pairs, 173 based on Foata normal form. 9/954 useless extension candidates. Maximal degree in co-relation 6488. Up to 549 conditions per place. [2025-02-08 08:35:42,569 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 158 selfloop transitions, 31 changer transitions 12/215 dead transitions. [2025-02-08 08:35:42,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 215 transitions, 3412 flow [2025-02-08 08:35:42,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:42,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 191 transitions. [2025-02-08 08:35:42,570 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4569377990430622 [2025-02-08 08:35:42,570 INFO L175 Difference]: Start difference. First operand has 223 places, 171 transitions, 2579 flow. Second operand 11 states and 191 transitions. [2025-02-08 08:35:42,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 215 transitions, 3412 flow [2025-02-08 08:35:42,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 215 transitions, 3342 flow, removed 8 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:42,602 INFO L231 Difference]: Finished difference. Result has 228 places, 171 transitions, 2577 flow [2025-02-08 08:35:42,602 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2515, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2577, PETRI_PLACES=228, PETRI_TRANSITIONS=171} [2025-02-08 08:35:42,602 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 192 predicate places. [2025-02-08 08:35:42,602 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 171 transitions, 2577 flow [2025-02-08 08:35:42,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:42,602 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:42,602 INFO L206 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] [2025-02-08 08:35:42,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-02-08 08:35:42,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2025-02-08 08:35:42,803 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:42,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:42,803 INFO L85 PathProgramCache]: Analyzing trace with hash -56321795, now seen corresponding path program 15 times [2025-02-08 08:35:42,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:42,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128527240] [2025-02-08 08:35:42,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:42,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:42,807 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:42,813 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:42,816 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:42,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:42,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128527240] [2025-02-08 08:35:42,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128527240] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:42,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466348435] [2025-02-08 08:35:42,916 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:42,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:42,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:42,918 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:42,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-02-08 08:35:42,967 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:42,980 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:42,980 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:42,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:42,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:42,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:43,017 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:43,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:43,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466348435] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:43,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:43,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:43,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805559311] [2025-02-08 08:35:43,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:43,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:43,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:43,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:43,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:43,070 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:43,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 171 transitions, 2577 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:43,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:43,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:43,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:43,393 INFO L124 PetriNetUnfolderBase]: 452/953 cut-off events. [2025-02-08 08:35:43,393 INFO L125 PetriNetUnfolderBase]: For 10956/11073 co-relation queries the response was YES. [2025-02-08 08:35:43,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6504 conditions, 953 events. 452/953 cut-off events. For 10956/11073 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5466 event pairs, 174 based on Foata normal form. 9/942 useless extension candidates. Maximal degree in co-relation 6412. Up to 549 conditions per place. [2025-02-08 08:35:43,401 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 155 selfloop transitions, 33 changer transitions 8/210 dead transitions. [2025-02-08 08:35:43,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 210 transitions, 3358 flow [2025-02-08 08:35:43,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:43,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:43,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:35:43,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:35:43,402 INFO L175 Difference]: Start difference. First operand has 228 places, 171 transitions, 2577 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:35:43,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 210 transitions, 3358 flow [2025-02-08 08:35:43,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 210 transitions, 3288 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:43,447 INFO L231 Difference]: Finished difference. Result has 229 places, 171 transitions, 2579 flow [2025-02-08 08:35:43,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2512, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2579, PETRI_PLACES=229, PETRI_TRANSITIONS=171} [2025-02-08 08:35:43,447 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 193 predicate places. [2025-02-08 08:35:43,447 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 171 transitions, 2579 flow [2025-02-08 08:35:43,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:43,447 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:43,447 INFO L206 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] [2025-02-08 08:35:43,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-02-08 08:35:43,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2025-02-08 08:35:43,648 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:43,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:43,648 INFO L85 PathProgramCache]: Analyzing trace with hash 774458129, now seen corresponding path program 16 times [2025-02-08 08:35:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:43,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307886024] [2025-02-08 08:35:43,649 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:43,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:43,651 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:43,653 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:43,653 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:43,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:43,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307886024] [2025-02-08 08:35:43,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307886024] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:43,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953813588] [2025-02-08 08:35:43,749 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:43,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:43,751 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:43,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-02-08 08:35:43,799 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:43,810 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:43,810 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:43,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:43,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:43,812 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:43,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953813588] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:43,904 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:43,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:43,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047553734] [2025-02-08 08:35:43,904 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:43,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:43,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:43,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:43,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:43,920 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:43,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 171 transitions, 2579 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:43,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:43,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:43,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:44,231 INFO L124 PetriNetUnfolderBase]: 450/951 cut-off events. [2025-02-08 08:35:44,231 INFO L125 PetriNetUnfolderBase]: For 10856/10973 co-relation queries the response was YES. [2025-02-08 08:35:44,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6484 conditions, 951 events. 450/951 cut-off events. For 10856/10973 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5464 event pairs, 174 based on Foata normal form. 9/940 useless extension candidates. Maximal degree in co-relation 6392. Up to 549 conditions per place. [2025-02-08 08:35:44,238 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 155 selfloop transitions, 30 changer transitions 10/209 dead transitions. [2025-02-08 08:35:44,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 209 transitions, 3344 flow [2025-02-08 08:35:44,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:35:44,239 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:35:44,239 INFO L175 Difference]: Start difference. First operand has 229 places, 171 transitions, 2579 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:35:44,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 209 transitions, 3344 flow [2025-02-08 08:35:44,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 209 transitions, 3277 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:44,270 INFO L231 Difference]: Finished difference. Result has 231 places, 169 transitions, 2532 flow [2025-02-08 08:35:44,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2516, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2532, PETRI_PLACES=231, PETRI_TRANSITIONS=169} [2025-02-08 08:35:44,270 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 195 predicate places. [2025-02-08 08:35:44,271 INFO L471 AbstractCegarLoop]: Abstraction has has 231 places, 169 transitions, 2532 flow [2025-02-08 08:35:44,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:44,271 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:44,271 INFO L206 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] [2025-02-08 08:35:44,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-02-08 08:35:44,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:44,471 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:44,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:44,472 INFO L85 PathProgramCache]: Analyzing trace with hash -618163489, now seen corresponding path program 17 times [2025-02-08 08:35:44,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:44,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989968973] [2025-02-08 08:35:44,472 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:44,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:44,476 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:44,479 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:44,479 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:44,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:44,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:44,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:44,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989968973] [2025-02-08 08:35:44,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989968973] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:44,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069653460] [2025-02-08 08:35:44,581 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:44,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:44,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:44,583 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:44,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-02-08 08:35:44,631 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:44,642 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:44,643 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:44,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:44,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:44,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:44,677 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:44,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069653460] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:44,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:44,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199185333] [2025-02-08 08:35:44,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:44,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:44,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:44,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:44,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:44,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 169 transitions, 2532 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:44,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:44,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:44,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:45,044 INFO L124 PetriNetUnfolderBase]: 446/944 cut-off events. [2025-02-08 08:35:45,044 INFO L125 PetriNetUnfolderBase]: For 10756/10873 co-relation queries the response was YES. [2025-02-08 08:35:45,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6409 conditions, 944 events. 446/944 cut-off events. For 10756/10873 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5413 event pairs, 175 based on Foata normal form. 9/933 useless extension candidates. Maximal degree in co-relation 6317. Up to 549 conditions per place. [2025-02-08 08:35:45,051 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 154 selfloop transitions, 29 changer transitions 9/206 dead transitions. [2025-02-08 08:35:45,051 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 206 transitions, 3285 flow [2025-02-08 08:35:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:45,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 186 transitions. [2025-02-08 08:35:45,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4449760765550239 [2025-02-08 08:35:45,052 INFO L175 Difference]: Start difference. First operand has 231 places, 169 transitions, 2532 flow. Second operand 11 states and 186 transitions. [2025-02-08 08:35:45,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 206 transitions, 3285 flow [2025-02-08 08:35:45,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 206 transitions, 3217 flow, removed 3 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:45,083 INFO L231 Difference]: Finished difference. Result has 229 places, 167 transitions, 2475 flow [2025-02-08 08:35:45,083 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2468, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2475, PETRI_PLACES=229, PETRI_TRANSITIONS=167} [2025-02-08 08:35:45,084 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 193 predicate places. [2025-02-08 08:35:45,084 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 167 transitions, 2475 flow [2025-02-08 08:35:45,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:45,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:45,084 INFO L206 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] [2025-02-08 08:35:45,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-02-08 08:35:45,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:45,284 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:45,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1025592737, now seen corresponding path program 18 times [2025-02-08 08:35:45,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:45,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79670777] [2025-02-08 08:35:45,285 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:45,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:45,289 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:45,292 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:45,292 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:45,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:45,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:45,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79670777] [2025-02-08 08:35:45,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79670777] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:45,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410279736] [2025-02-08 08:35:45,380 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:45,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:45,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:45,382 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:45,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-02-08 08:35:45,431 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:45,444 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:45,444 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:45,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:45,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:45,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:45,479 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:45,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410279736] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:45,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:45,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:45,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086504226] [2025-02-08 08:35:45,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:45,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:45,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:45,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:45,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:45,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:45,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 167 transitions, 2475 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:45,541 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:45,541 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:45,541 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:45,833 INFO L124 PetriNetUnfolderBase]: 446/946 cut-off events. [2025-02-08 08:35:45,833 INFO L125 PetriNetUnfolderBase]: For 10686/10803 co-relation queries the response was YES. [2025-02-08 08:35:45,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6377 conditions, 946 events. 446/946 cut-off events. For 10686/10803 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5448 event pairs, 175 based on Foata normal form. 9/935 useless extension candidates. Maximal degree in co-relation 6286. Up to 549 conditions per place. [2025-02-08 08:35:45,841 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 153 selfloop transitions, 26 changer transitions 14/207 dead transitions. [2025-02-08 08:35:45,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 207 transitions, 3249 flow [2025-02-08 08:35:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2025-02-08 08:35:45,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:35:45,842 INFO L175 Difference]: Start difference. First operand has 229 places, 167 transitions, 2475 flow. Second operand 11 states and 187 transitions. [2025-02-08 08:35:45,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 207 transitions, 3249 flow [2025-02-08 08:35:45,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 207 transitions, 3187 flow, removed 2 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:45,873 INFO L231 Difference]: Finished difference. Result has 230 places, 164 transitions, 2399 flow [2025-02-08 08:35:45,873 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2415, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2399, PETRI_PLACES=230, PETRI_TRANSITIONS=164} [2025-02-08 08:35:45,874 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 194 predicate places. [2025-02-08 08:35:45,874 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 164 transitions, 2399 flow [2025-02-08 08:35:45,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:45,874 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:45,874 INFO L206 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] [2025-02-08 08:35:45,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-02-08 08:35:46,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:46,074 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:46,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:46,075 INFO L85 PathProgramCache]: Analyzing trace with hash -688771681, now seen corresponding path program 19 times [2025-02-08 08:35:46,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:46,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321633882] [2025-02-08 08:35:46,075 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:46,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:46,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:46,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:46,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:46,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:46,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321633882] [2025-02-08 08:35:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321633882] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281210655] [2025-02-08 08:35:46,161 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:46,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:46,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:46,163 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:46,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-02-08 08:35:46,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:46,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:46,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:46,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:46,225 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:46,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:46,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:46,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:46,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:46,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281210655] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:46,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:46,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:46,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603911662] [2025-02-08 08:35:46,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:46,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:46,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:46,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:46,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:46,326 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:46,326 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 164 transitions, 2399 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:46,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:46,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:46,327 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:46,610 INFO L124 PetriNetUnfolderBase]: 438/928 cut-off events. [2025-02-08 08:35:46,611 INFO L125 PetriNetUnfolderBase]: For 10484/10601 co-relation queries the response was YES. [2025-02-08 08:35:46,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6238 conditions, 928 events. 438/928 cut-off events. For 10484/10601 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5308 event pairs, 173 based on Foata normal form. 9/917 useless extension candidates. Maximal degree in co-relation 6145. Up to 549 conditions per place. [2025-02-08 08:35:46,623 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 152 selfloop transitions, 25 changer transitions 12/203 dead transitions. [2025-02-08 08:35:46,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 203 transitions, 3153 flow [2025-02-08 08:35:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2025-02-08 08:35:46,624 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44258373205741625 [2025-02-08 08:35:46,624 INFO L175 Difference]: Start difference. First operand has 230 places, 164 transitions, 2399 flow. Second operand 11 states and 185 transitions. [2025-02-08 08:35:46,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 203 transitions, 3153 flow [2025-02-08 08:35:46,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 203 transitions, 3063 flow, removed 14 selfloop flow, removed 13 redundant places. [2025-02-08 08:35:46,660 INFO L231 Difference]: Finished difference. Result has 224 places, 161 transitions, 2316 flow [2025-02-08 08:35:46,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2316, PETRI_PLACES=224, PETRI_TRANSITIONS=161} [2025-02-08 08:35:46,661 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 188 predicate places. [2025-02-08 08:35:46,661 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 161 transitions, 2316 flow [2025-02-08 08:35:46,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:46,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:46,661 INFO L206 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] [2025-02-08 08:35:46,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-02-08 08:35:46,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2025-02-08 08:35:46,861 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:46,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:46,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1055581767, now seen corresponding path program 20 times [2025-02-08 08:35:46,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:46,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527504252] [2025-02-08 08:35:46,862 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:46,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:46,865 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:46,868 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:46,868 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:46,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:46,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:46,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527504252] [2025-02-08 08:35:46,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527504252] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:46,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137970624] [2025-02-08 08:35:46,977 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:46,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:46,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:46,979 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:46,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-02-08 08:35:47,029 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:47,042 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:47,042 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:47,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:47,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:47,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:47,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:47,127 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:47,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137970624] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:47,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:47,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:47,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981507254] [2025-02-08 08:35:47,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:47,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:47,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:47,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:47,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:47,146 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:47,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 161 transitions, 2316 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:47,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:47,147 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:47,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:47,453 INFO L124 PetriNetUnfolderBase]: 431/913 cut-off events. [2025-02-08 08:35:47,453 INFO L125 PetriNetUnfolderBase]: For 10076/10193 co-relation queries the response was YES. [2025-02-08 08:35:47,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6085 conditions, 913 events. 431/913 cut-off events. For 10076/10193 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5186 event pairs, 173 based on Foata normal form. 9/902 useless extension candidates. Maximal degree in co-relation 5995. Up to 549 conditions per place. [2025-02-08 08:35:47,458 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 146 selfloop transitions, 20 changer transitions 17/197 dead transitions. [2025-02-08 08:35:47,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 197 transitions, 3032 flow [2025-02-08 08:35:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 181 transitions. [2025-02-08 08:35:47,459 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43301435406698563 [2025-02-08 08:35:47,459 INFO L175 Difference]: Start difference. First operand has 224 places, 161 transitions, 2316 flow. Second operand 11 states and 181 transitions. [2025-02-08 08:35:47,459 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 197 transitions, 3032 flow [2025-02-08 08:35:47,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 197 transitions, 2950 flow, removed 11 selfloop flow, removed 15 redundant places. [2025-02-08 08:35:47,488 INFO L231 Difference]: Finished difference. Result has 216 places, 155 transitions, 2171 flow [2025-02-08 08:35:47,488 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2242, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2171, PETRI_PLACES=216, PETRI_TRANSITIONS=155} [2025-02-08 08:35:47,488 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 180 predicate places. [2025-02-08 08:35:47,488 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 155 transitions, 2171 flow [2025-02-08 08:35:47,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:47,488 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:47,488 INFO L206 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] [2025-02-08 08:35:47,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-02-08 08:35:47,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:47,689 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:47,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2102608387, now seen corresponding path program 21 times [2025-02-08 08:35:47,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:47,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607280965] [2025-02-08 08:35:47,689 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:47,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:47,692 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:47,694 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:47,695 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:47,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:47,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:47,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607280965] [2025-02-08 08:35:47,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607280965] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:47,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401818052] [2025-02-08 08:35:47,795 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:47,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:47,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:47,798 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:47,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-02-08 08:35:47,848 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:47,860 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:47,861 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:47,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:47,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:47,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:47,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:47,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401818052] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:47,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:47,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:47,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016262192] [2025-02-08 08:35:47,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:47,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:47,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:47,947 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:47,947 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:47,961 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:47,961 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 155 transitions, 2171 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:47,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:47,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:47,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:48,273 INFO L124 PetriNetUnfolderBase]: 433/915 cut-off events. [2025-02-08 08:35:48,273 INFO L125 PetriNetUnfolderBase]: For 9665/9782 co-relation queries the response was YES. [2025-02-08 08:35:48,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6043 conditions, 915 events. 433/915 cut-off events. For 9665/9782 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5139 event pairs, 181 based on Foata normal form. 9/904 useless extension candidates. Maximal degree in co-relation 5957. Up to 549 conditions per place. [2025-02-08 08:35:48,280 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 140 selfloop transitions, 29 changer transitions 8/191 dead transitions. [2025-02-08 08:35:48,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 191 transitions, 2855 flow [2025-02-08 08:35:48,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:48,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:35:48,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:35:48,281 INFO L175 Difference]: Start difference. First operand has 216 places, 155 transitions, 2171 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:35:48,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 191 transitions, 2855 flow [2025-02-08 08:35:48,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 191 transitions, 2749 flow, removed 8 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:48,308 INFO L231 Difference]: Finished difference. Result has 208 places, 159 transitions, 2223 flow [2025-02-08 08:35:48,308 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2091, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2223, PETRI_PLACES=208, PETRI_TRANSITIONS=159} [2025-02-08 08:35:48,308 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 172 predicate places. [2025-02-08 08:35:48,309 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 159 transitions, 2223 flow [2025-02-08 08:35:48,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:48,309 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:48,309 INFO L206 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] [2025-02-08 08:35:48,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-02-08 08:35:48,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:48,509 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:48,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:48,510 INFO L85 PathProgramCache]: Analyzing trace with hash 476337131, now seen corresponding path program 17 times [2025-02-08 08:35:48,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:48,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429383920] [2025-02-08 08:35:48,510 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:48,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:48,513 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:48,515 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:48,515 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:48,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:48,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:48,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429383920] [2025-02-08 08:35:48,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429383920] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:48,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139108279] [2025-02-08 08:35:48,599 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:48,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:48,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:48,601 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:48,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-02-08 08:35:48,651 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:48,663 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:48,663 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:48,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:48,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:48,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:48,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:48,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:48,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139108279] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:48,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:48,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:48,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545595815] [2025-02-08 08:35:48,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:48,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:48,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:48,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:48,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:48,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 159 transitions, 2223 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:48,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:48,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:48,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:49,244 INFO L124 PetriNetUnfolderBase]: 430/910 cut-off events. [2025-02-08 08:35:49,244 INFO L125 PetriNetUnfolderBase]: For 8671/8899 co-relation queries the response was YES. [2025-02-08 08:35:49,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5944 conditions, 910 events. 430/910 cut-off events. For 8671/8899 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5120 event pairs, 98 based on Foata normal form. 21/914 useless extension candidates. Maximal degree in co-relation 5860. Up to 270 conditions per place. [2025-02-08 08:35:49,252 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 114 selfloop transitions, 54 changer transitions 6/189 dead transitions. [2025-02-08 08:35:49,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 189 transitions, 2751 flow [2025-02-08 08:35:49,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:49,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:49,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 203 transitions. [2025-02-08 08:35:49,253 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4451754385964912 [2025-02-08 08:35:49,253 INFO L175 Difference]: Start difference. First operand has 208 places, 159 transitions, 2223 flow. Second operand 12 states and 203 transitions. [2025-02-08 08:35:49,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 189 transitions, 2751 flow [2025-02-08 08:35:49,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 189 transitions, 2677 flow, removed 5 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:49,279 INFO L231 Difference]: Finished difference. Result has 211 places, 159 transitions, 2243 flow [2025-02-08 08:35:49,279 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2149, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2243, PETRI_PLACES=211, PETRI_TRANSITIONS=159} [2025-02-08 08:35:49,279 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 175 predicate places. [2025-02-08 08:35:49,279 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 159 transitions, 2243 flow [2025-02-08 08:35:49,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:49,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:49,279 INFO L206 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] [2025-02-08 08:35:49,286 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-02-08 08:35:49,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2025-02-08 08:35:49,480 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:49,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:49,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1628526451, now seen corresponding path program 22 times [2025-02-08 08:35:49,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:49,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420715003] [2025-02-08 08:35:49,481 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:49,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:49,483 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:49,485 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:49,485 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:49,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:49,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:49,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420715003] [2025-02-08 08:35:49,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420715003] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:49,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914152664] [2025-02-08 08:35:49,583 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:49,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:49,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:49,585 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:49,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-02-08 08:35:49,635 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:49,647 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:49,647 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:49,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:49,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:49,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:49,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:49,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:49,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914152664] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:49,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:49,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:49,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914731571] [2025-02-08 08:35:49,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:49,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:49,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:49,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:49,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:49,740 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:49,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 159 transitions, 2243 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:49,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:49,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:49,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:50,074 INFO L124 PetriNetUnfolderBase]: 442/934 cut-off events. [2025-02-08 08:35:50,074 INFO L125 PetriNetUnfolderBase]: For 9636/9757 co-relation queries the response was YES. [2025-02-08 08:35:50,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 934 events. 442/934 cut-off events. For 9636/9757 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5284 event pairs, 183 based on Foata normal form. 9/923 useless extension candidates. Maximal degree in co-relation 6074. Up to 547 conditions per place. [2025-02-08 08:35:50,082 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 140 selfloop transitions, 34 changer transitions 8/196 dead transitions. [2025-02-08 08:35:50,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 196 transitions, 2989 flow [2025-02-08 08:35:50,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:50,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2025-02-08 08:35:50,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:35:50,083 INFO L175 Difference]: Start difference. First operand has 211 places, 159 transitions, 2243 flow. Second operand 11 states and 187 transitions. [2025-02-08 08:35:50,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 196 transitions, 2989 flow [2025-02-08 08:35:50,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 196 transitions, 2871 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:50,126 INFO L231 Difference]: Finished difference. Result has 214 places, 165 transitions, 2352 flow [2025-02-08 08:35:50,126 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2135, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2352, PETRI_PLACES=214, PETRI_TRANSITIONS=165} [2025-02-08 08:35:50,126 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 178 predicate places. [2025-02-08 08:35:50,127 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 165 transitions, 2352 flow [2025-02-08 08:35:50,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:50,127 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:50,127 INFO L206 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] [2025-02-08 08:35:50,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2025-02-08 08:35:50,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,37 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:50,327 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:50,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:50,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1014970249, now seen corresponding path program 18 times [2025-02-08 08:35:50,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:50,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935255099] [2025-02-08 08:35:50,328 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:50,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:50,331 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:50,335 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:50,336 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:50,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:50,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:50,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935255099] [2025-02-08 08:35:50,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935255099] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818457262] [2025-02-08 08:35:50,446 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:50,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:50,448 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:50,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2025-02-08 08:35:50,498 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:50,511 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:50,511 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:50,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:50,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:50,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:50,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:50,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:50,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818457262] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:50,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:50,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:50,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145264046] [2025-02-08 08:35:50,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:50,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:50,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:50,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:50,675 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:50,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 165 transitions, 2352 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:50,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:50,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:50,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:51,062 INFO L124 PetriNetUnfolderBase]: 442/934 cut-off events. [2025-02-08 08:35:51,062 INFO L125 PetriNetUnfolderBase]: For 9253/9483 co-relation queries the response was YES. [2025-02-08 08:35:51,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6178 conditions, 934 events. 442/934 cut-off events. For 9253/9483 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5295 event pairs, 98 based on Foata normal form. 21/938 useless extension candidates. Maximal degree in co-relation 6092. Up to 278 conditions per place. [2025-02-08 08:35:51,070 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 112 selfloop transitions, 63 changer transitions 6/196 dead transitions. [2025-02-08 08:35:51,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 196 transitions, 2944 flow [2025-02-08 08:35:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:51,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:51,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:35:51,070 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:35:51,070 INFO L175 Difference]: Start difference. First operand has 214 places, 165 transitions, 2352 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:35:51,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 196 transitions, 2944 flow [2025-02-08 08:35:51,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 196 transitions, 2902 flow, removed 5 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:51,101 INFO L231 Difference]: Finished difference. Result has 221 places, 168 transitions, 2500 flow [2025-02-08 08:35:51,101 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2310, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2500, PETRI_PLACES=221, PETRI_TRANSITIONS=168} [2025-02-08 08:35:51,102 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 185 predicate places. [2025-02-08 08:35:51,102 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 168 transitions, 2500 flow [2025-02-08 08:35:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:51,102 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:51,102 INFO L206 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] [2025-02-08 08:35:51,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2025-02-08 08:35:51,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78,38 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:51,303 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:51,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:51,303 INFO L85 PathProgramCache]: Analyzing trace with hash -396858613, now seen corresponding path program 23 times [2025-02-08 08:35:51,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:51,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296478719] [2025-02-08 08:35:51,303 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:51,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:51,306 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:51,309 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:51,309 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:51,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:51,393 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:51,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:51,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296478719] [2025-02-08 08:35:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296478719] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:51,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021142785] [2025-02-08 08:35:51,394 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:51,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:51,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:51,395 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:51,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2025-02-08 08:35:51,448 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:51,460 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:51,460 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:51,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:51,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:51,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:51,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:51,496 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:51,533 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:51,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021142785] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:51,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:51,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:35:51,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139864794] [2025-02-08 08:35:51,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:51,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:35:51,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:51,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:35:51,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:35:51,563 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:51,564 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 168 transitions, 2500 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:51,564 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:51,564 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:51,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:51,862 INFO L124 PetriNetUnfolderBase]: 440/932 cut-off events. [2025-02-08 08:35:51,862 INFO L125 PetriNetUnfolderBase]: For 10165/10288 co-relation queries the response was YES. [2025-02-08 08:35:51,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6265 conditions, 932 events. 440/932 cut-off events. For 10165/10288 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5288 event pairs, 184 based on Foata normal form. 9/921 useless extension candidates. Maximal degree in co-relation 6178. Up to 550 conditions per place. [2025-02-08 08:35:51,870 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 145 selfloop transitions, 33 changer transitions 8/200 dead transitions. [2025-02-08 08:35:51,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 200 transitions, 3128 flow [2025-02-08 08:35:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:35:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:35:51,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2025-02-08 08:35:51,871 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45215311004784686 [2025-02-08 08:35:51,871 INFO L175 Difference]: Start difference. First operand has 221 places, 168 transitions, 2500 flow. Second operand 11 states and 189 transitions. [2025-02-08 08:35:51,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 200 transitions, 3128 flow [2025-02-08 08:35:51,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 200 transitions, 3010 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:51,902 INFO L231 Difference]: Finished difference. Result has 226 places, 169 transitions, 2489 flow [2025-02-08 08:35:51,902 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2386, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=168, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2489, PETRI_PLACES=226, PETRI_TRANSITIONS=169} [2025-02-08 08:35:51,903 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 190 predicate places. [2025-02-08 08:35:51,903 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 169 transitions, 2489 flow [2025-02-08 08:35:51,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:35:51,903 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:51,903 INFO L206 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] [2025-02-08 08:35:51,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2025-02-08 08:35:52,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2025-02-08 08:35:52,103 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:52,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:52,104 INFO L85 PathProgramCache]: Analyzing trace with hash 255738037, now seen corresponding path program 19 times [2025-02-08 08:35:52,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875895818] [2025-02-08 08:35:52,104 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:52,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:52,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:52,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:52,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875895818] [2025-02-08 08:35:52,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875895818] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728451511] [2025-02-08 08:35:52,205 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:52,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:52,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:52,207 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:52,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2025-02-08 08:35:52,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:52,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:52,270 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:52,270 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:52,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:52,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:52,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:52,342 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:52,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728451511] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:52,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:52,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:52,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940754369] [2025-02-08 08:35:52,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:52,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:52,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:52,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:52,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:52,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:52,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 169 transitions, 2489 flow. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:52,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:52,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:52,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:52,793 INFO L124 PetriNetUnfolderBase]: 436/924 cut-off events. [2025-02-08 08:35:52,793 INFO L125 PetriNetUnfolderBase]: For 9331/9563 co-relation queries the response was YES. [2025-02-08 08:35:52,798 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6182 conditions, 924 events. 436/924 cut-off events. For 9331/9563 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 5206 event pairs, 97 based on Foata normal form. 21/928 useless extension candidates. Maximal degree in co-relation 6092. Up to 271 conditions per place. [2025-02-08 08:35:52,800 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 114 selfloop transitions, 53 changer transitions 15/197 dead transitions. [2025-02-08 08:35:52,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 197 transitions, 3018 flow [2025-02-08 08:35:52,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:52,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:52,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 203 transitions. [2025-02-08 08:35:52,801 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4451754385964912 [2025-02-08 08:35:52,801 INFO L175 Difference]: Start difference. First operand has 226 places, 169 transitions, 2489 flow. Second operand 12 states and 203 transitions. [2025-02-08 08:35:52,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 197 transitions, 3018 flow [2025-02-08 08:35:52,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 197 transitions, 2929 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:52,833 INFO L231 Difference]: Finished difference. Result has 227 places, 162 transitions, 2396 flow [2025-02-08 08:35:52,833 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2400, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2396, PETRI_PLACES=227, PETRI_TRANSITIONS=162} [2025-02-08 08:35:52,833 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 191 predicate places. [2025-02-08 08:35:52,833 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 162 transitions, 2396 flow [2025-02-08 08:35:52,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 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) [2025-02-08 08:35:52,833 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:52,833 INFO L206 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] [2025-02-08 08:35:52,842 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2025-02-08 08:35:53,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,40 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:53,034 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:53,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:53,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1580816735, now seen corresponding path program 20 times [2025-02-08 08:35:53,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608268098] [2025-02-08 08:35:53,035 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:53,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:53,038 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:53,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:53,044 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:53,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:53,132 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:53,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:53,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608268098] [2025-02-08 08:35:53,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608268098] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:53,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039753068] [2025-02-08 08:35:53,133 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:53,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:53,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:53,135 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:53,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2025-02-08 08:35:53,186 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:53,198 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:53,199 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:53,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:53,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:53,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:53,262 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:53,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:53,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039753068] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:53,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:53,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:53,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31651573] [2025-02-08 08:35:53,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:53,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:53,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:53,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:53,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:53,342 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:53,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 162 transitions, 2396 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:53,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:53,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:53,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:53,732 INFO L124 PetriNetUnfolderBase]: 425/900 cut-off events. [2025-02-08 08:35:53,732 INFO L125 PetriNetUnfolderBase]: For 9204/9435 co-relation queries the response was YES. [2025-02-08 08:35:53,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6023 conditions, 900 events. 425/900 cut-off events. For 9204/9435 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5034 event pairs, 95 based on Foata normal form. 21/904 useless extension candidates. Maximal degree in co-relation 5934. Up to 269 conditions per place. [2025-02-08 08:35:53,741 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 111 selfloop transitions, 58 changer transitions 7/191 dead transitions. [2025-02-08 08:35:53,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 191 transitions, 2925 flow [2025-02-08 08:35:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:53,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2025-02-08 08:35:53,742 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:35:53,742 INFO L175 Difference]: Start difference. First operand has 227 places, 162 transitions, 2396 flow. Second operand 12 states and 204 transitions. [2025-02-08 08:35:53,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 191 transitions, 2925 flow [2025-02-08 08:35:53,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 191 transitions, 2795 flow, removed 8 selfloop flow, removed 11 redundant places. [2025-02-08 08:35:53,776 INFO L231 Difference]: Finished difference. Result has 220 places, 161 transitions, 2371 flow [2025-02-08 08:35:53,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2270, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2371, PETRI_PLACES=220, PETRI_TRANSITIONS=161} [2025-02-08 08:35:53,777 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 184 predicate places. [2025-02-08 08:35:53,777 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 161 transitions, 2371 flow [2025-02-08 08:35:53,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:53,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:53,777 INFO L206 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] [2025-02-08 08:35:53,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2025-02-08 08:35:53,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2025-02-08 08:35:53,978 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:53,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:53,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1768803415, now seen corresponding path program 21 times [2025-02-08 08:35:53,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:53,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640076868] [2025-02-08 08:35:53,978 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:53,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:53,981 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:53,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:53,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:53,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:54,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:54,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640076868] [2025-02-08 08:35:54,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640076868] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:54,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486619979] [2025-02-08 08:35:54,071 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:54,073 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:54,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2025-02-08 08:35:54,124 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:54,138 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:54,138 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:54,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:54,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:54,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:54,194 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:54,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:54,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486619979] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:54,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:54,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:54,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481502509] [2025-02-08 08:35:54,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:54,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:54,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:54,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:54,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:54,267 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:54,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 161 transitions, 2371 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:54,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:54,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:54,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:54,667 INFO L124 PetriNetUnfolderBase]: 422/896 cut-off events. [2025-02-08 08:35:54,667 INFO L125 PetriNetUnfolderBase]: For 9077/9308 co-relation queries the response was YES. [2025-02-08 08:35:54,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5988 conditions, 896 events. 422/896 cut-off events. For 9077/9308 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5018 event pairs, 96 based on Foata normal form. 21/900 useless extension candidates. Maximal degree in co-relation 5902. Up to 269 conditions per place. [2025-02-08 08:35:54,675 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 109 selfloop transitions, 54 changer transitions 11/189 dead transitions. [2025-02-08 08:35:54,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 189 transitions, 2896 flow [2025-02-08 08:35:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:54,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:54,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2025-02-08 08:35:54,675 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44298245614035087 [2025-02-08 08:35:54,676 INFO L175 Difference]: Start difference. First operand has 220 places, 161 transitions, 2371 flow. Second operand 12 states and 202 transitions. [2025-02-08 08:35:54,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 189 transitions, 2896 flow [2025-02-08 08:35:54,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 189 transitions, 2778 flow, removed 1 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:54,704 INFO L231 Difference]: Finished difference. Result has 220 places, 157 transitions, 2300 flow [2025-02-08 08:35:54,704 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2255, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2300, PETRI_PLACES=220, PETRI_TRANSITIONS=157} [2025-02-08 08:35:54,705 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 184 predicate places. [2025-02-08 08:35:54,705 INFO L471 AbstractCegarLoop]: Abstraction has has 220 places, 157 transitions, 2300 flow [2025-02-08 08:35:54,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:54,705 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:54,705 INFO L206 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] [2025-02-08 08:35:54,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2025-02-08 08:35:54,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,42 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:54,905 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:54,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:54,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1829450811, now seen corresponding path program 22 times [2025-02-08 08:35:54,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:54,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344171600] [2025-02-08 08:35:54,906 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:54,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:54,911 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:54,913 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:54,913 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:54,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:55,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:55,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344171600] [2025-02-08 08:35:55,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344171600] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:55,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819513853] [2025-02-08 08:35:55,017 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:55,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:55,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:55,018 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:55,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2025-02-08 08:35:55,071 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:55,084 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:55,084 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:55,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:55,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:55,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:55,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:55,157 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:55,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819513853] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:55,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:55,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:55,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453570392] [2025-02-08 08:35:55,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:55,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:55,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:55,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:55,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:55,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:55,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 157 transitions, 2300 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:55,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:55,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:55,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:55,553 INFO L124 PetriNetUnfolderBase]: 417/885 cut-off events. [2025-02-08 08:35:55,553 INFO L125 PetriNetUnfolderBase]: For 8947/9177 co-relation queries the response was YES. [2025-02-08 08:35:55,557 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5902 conditions, 885 events. 417/885 cut-off events. For 8947/9177 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4949 event pairs, 96 based on Foata normal form. 21/889 useless extension candidates. Maximal degree in co-relation 5816. Up to 269 conditions per place. [2025-02-08 08:35:55,559 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 109 selfloop transitions, 53 changer transitions 7/184 dead transitions. [2025-02-08 08:35:55,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 184 transitions, 2803 flow [2025-02-08 08:35:55,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:55,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:55,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2025-02-08 08:35:55,560 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2025-02-08 08:35:55,560 INFO L175 Difference]: Start difference. First operand has 220 places, 157 transitions, 2300 flow. Second operand 12 states and 198 transitions. [2025-02-08 08:35:55,560 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 184 transitions, 2803 flow [2025-02-08 08:35:55,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 184 transitions, 2673 flow, removed 3 selfloop flow, removed 12 redundant places. [2025-02-08 08:35:55,587 INFO L231 Difference]: Finished difference. Result has 214 places, 155 transitions, 2251 flow [2025-02-08 08:35:55,587 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2172, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2251, PETRI_PLACES=214, PETRI_TRANSITIONS=155} [2025-02-08 08:35:55,587 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 178 predicate places. [2025-02-08 08:35:55,587 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 155 transitions, 2251 flow [2025-02-08 08:35:55,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:55,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:55,587 INFO L206 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] [2025-02-08 08:35:55,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2025-02-08 08:35:55,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,43 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:55,788 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:55,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:55,788 INFO L85 PathProgramCache]: Analyzing trace with hash -760324753, now seen corresponding path program 23 times [2025-02-08 08:35:55,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:55,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132299449] [2025-02-08 08:35:55,789 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:55,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:55,792 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:55,794 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:55,794 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:55,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:55,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:55,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132299449] [2025-02-08 08:35:55,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132299449] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:55,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399940132] [2025-02-08 08:35:55,884 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:55,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:55,887 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:55,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2025-02-08 08:35:55,947 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:55,959 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:55,959 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:55,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:55,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:55,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:56,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:56,023 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:56,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:56,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399940132] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:56,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:56,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:56,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705469597] [2025-02-08 08:35:56,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:56,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:56,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:56,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:56,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:56,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:56,108 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 155 transitions, 2251 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:56,108 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:56,108 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:56,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:56,514 INFO L124 PetriNetUnfolderBase]: 413/877 cut-off events. [2025-02-08 08:35:56,514 INFO L125 PetriNetUnfolderBase]: For 8717/8947 co-relation queries the response was YES. [2025-02-08 08:35:56,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5819 conditions, 877 events. 413/877 cut-off events. For 8717/8947 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4861 event pairs, 97 based on Foata normal form. 21/881 useless extension candidates. Maximal degree in co-relation 5736. Up to 269 conditions per place. [2025-02-08 08:35:56,521 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 108 selfloop transitions, 53 changer transitions 6/182 dead transitions. [2025-02-08 08:35:56,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 182 transitions, 2747 flow [2025-02-08 08:35:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2025-02-08 08:35:56,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43201754385964913 [2025-02-08 08:35:56,522 INFO L175 Difference]: Start difference. First operand has 214 places, 155 transitions, 2251 flow. Second operand 12 states and 197 transitions. [2025-02-08 08:35:56,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 182 transitions, 2747 flow [2025-02-08 08:35:56,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 182 transitions, 2627 flow, removed 2 selfloop flow, removed 11 redundant places. [2025-02-08 08:35:56,549 INFO L231 Difference]: Finished difference. Result has 214 places, 154 transitions, 2222 flow [2025-02-08 08:35:56,549 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2133, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2222, PETRI_PLACES=214, PETRI_TRANSITIONS=154} [2025-02-08 08:35:56,550 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 178 predicate places. [2025-02-08 08:35:56,550 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 154 transitions, 2222 flow [2025-02-08 08:35:56,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:56,550 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:56,550 INFO L206 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] [2025-02-08 08:35:56,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:56,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,44 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:56,751 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:56,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:56,751 INFO L85 PathProgramCache]: Analyzing trace with hash 295444129, now seen corresponding path program 24 times [2025-02-08 08:35:56,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:56,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969618982] [2025-02-08 08:35:56,751 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:56,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:56,754 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:56,757 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:56,757 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:56,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:56,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:56,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969618982] [2025-02-08 08:35:56,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969618982] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:56,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712919616] [2025-02-08 08:35:56,849 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:56,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:56,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:56,851 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:56,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2025-02-08 08:35:56,904 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:56,918 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:56,918 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:35:56,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:56,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:56,919 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:56,981 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:57,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712919616] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:57,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:57,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:57,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008106610] [2025-02-08 08:35:57,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:57,044 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:57,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:57,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:57,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:57,073 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:57,073 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 154 transitions, 2222 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:57,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:57,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:57,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:57,455 INFO L124 PetriNetUnfolderBase]: 412/877 cut-off events. [2025-02-08 08:35:57,455 INFO L125 PetriNetUnfolderBase]: For 8655/8885 co-relation queries the response was YES. [2025-02-08 08:35:57,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5787 conditions, 877 events. 412/877 cut-off events. For 8655/8885 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 4901 event pairs, 96 based on Foata normal form. 21/881 useless extension candidates. Maximal degree in co-relation 5703. Up to 269 conditions per place. [2025-02-08 08:35:57,465 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 107 selfloop transitions, 50 changer transitions 10/182 dead transitions. [2025-02-08 08:35:57,465 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 182 transitions, 2717 flow [2025-02-08 08:35:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:57,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:57,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2025-02-08 08:35:57,466 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43201754385964913 [2025-02-08 08:35:57,466 INFO L175 Difference]: Start difference. First operand has 214 places, 154 transitions, 2222 flow. Second operand 12 states and 197 transitions. [2025-02-08 08:35:57,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 182 transitions, 2717 flow [2025-02-08 08:35:57,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 182 transitions, 2607 flow, removed 1 selfloop flow, removed 10 redundant places. [2025-02-08 08:35:57,495 INFO L231 Difference]: Finished difference. Result has 214 places, 151 transitions, 2173 flow [2025-02-08 08:35:57,495 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2112, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2173, PETRI_PLACES=214, PETRI_TRANSITIONS=151} [2025-02-08 08:35:57,496 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 178 predicate places. [2025-02-08 08:35:57,496 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 151 transitions, 2173 flow [2025-02-08 08:35:57,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:57,496 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:57,496 INFO L206 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] [2025-02-08 08:35:57,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2025-02-08 08:35:57,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,45 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:57,697 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:57,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:57,697 INFO L85 PathProgramCache]: Analyzing trace with hash -51051255, now seen corresponding path program 25 times [2025-02-08 08:35:57,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:57,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224387938] [2025-02-08 08:35:57,697 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:57,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:57,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:57,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:57,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:57,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:57,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:57,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224387938] [2025-02-08 08:35:57,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224387938] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:57,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368441768] [2025-02-08 08:35:57,795 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:57,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:57,798 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:57,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2025-02-08 08:35:57,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:57,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:57,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:57,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:57,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:57,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:57,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:57,926 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:57,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:57,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368441768] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:57,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:57,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2025-02-08 08:35:57,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255515400] [2025-02-08 08:35:57,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:57,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-08 08:35:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:57,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-08 08:35:57,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2025-02-08 08:35:58,002 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:58,003 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 151 transitions, 2173 flow. Second operand has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:58,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:58,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:58,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,358 INFO L124 PetriNetUnfolderBase]: 407/859 cut-off events. [2025-02-08 08:35:58,358 INFO L125 PetriNetUnfolderBase]: For 8618/8849 co-relation queries the response was YES. [2025-02-08 08:35:58,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5696 conditions, 859 events. 407/859 cut-off events. For 8618/8849 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 4720 event pairs, 93 based on Foata normal form. 21/863 useless extension candidates. Maximal degree in co-relation 5611. Up to 269 conditions per place. [2025-02-08 08:35:58,364 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 99 selfloop transitions, 44 changer transitions 20/178 dead transitions. [2025-02-08 08:35:58,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 178 transitions, 2652 flow [2025-02-08 08:35:58,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 195 transitions. [2025-02-08 08:35:58,365 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4276315789473684 [2025-02-08 08:35:58,365 INFO L175 Difference]: Start difference. First operand has 214 places, 151 transitions, 2173 flow. Second operand 12 states and 195 transitions. [2025-02-08 08:35:58,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 178 transitions, 2652 flow [2025-02-08 08:35:58,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 178 transitions, 2538 flow, removed 3 selfloop flow, removed 14 redundant places. [2025-02-08 08:35:58,394 INFO L231 Difference]: Finished difference. Result has 208 places, 143 transitions, 2048 flow [2025-02-08 08:35:58,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2059, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2048, PETRI_PLACES=208, PETRI_TRANSITIONS=143} [2025-02-08 08:35:58,394 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 172 predicate places. [2025-02-08 08:35:58,394 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 143 transitions, 2048 flow [2025-02-08 08:35:58,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.533333333333333) internal successors, (188), 15 states have internal predecessors, (188), 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) [2025-02-08 08:35:58,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:58,395 INFO L206 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] [2025-02-08 08:35:58,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2025-02-08 08:35:58,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2025-02-08 08:35:58,595 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:58,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:58,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1445257265, now seen corresponding path program 26 times [2025-02-08 08:35:58,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:58,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674041774] [2025-02-08 08:35:58,596 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:58,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:58,599 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:58,601 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:58,601 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:58,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:58,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:58,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674041774] [2025-02-08 08:35:58,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674041774] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:58,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935887593] [2025-02-08 08:35:58,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:58,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:58,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:58,687 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:58,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2025-02-08 08:35:58,744 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:58,756 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:58,756 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:35:58,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:58,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:58,758 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:58,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:58,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:58,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935887593] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:58,855 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:58,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:35:58,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816969738] [2025-02-08 08:35:58,855 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:58,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:35:58,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:58,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:35:58,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:35:58,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:58,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 143 transitions, 2048 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:58,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:58,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:58,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:59,196 INFO L124 PetriNetUnfolderBase]: 405/860 cut-off events. [2025-02-08 08:35:59,196 INFO L125 PetriNetUnfolderBase]: For 8507/8636 co-relation queries the response was YES. [2025-02-08 08:35:59,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5652 conditions, 860 events. 405/860 cut-off events. For 8507/8636 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4727 event pairs, 101 based on Foata normal form. 11/856 useless extension candidates. Maximal degree in co-relation 5570. Up to 269 conditions per place. [2025-02-08 08:35:59,203 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 101 selfloop transitions, 50 changer transitions 11/177 dead transitions. [2025-02-08 08:35:59,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 177 transitions, 2603 flow [2025-02-08 08:35:59,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:59,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 209 transitions. [2025-02-08 08:35:59,204 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2025-02-08 08:35:59,204 INFO L175 Difference]: Start difference. First operand has 208 places, 143 transitions, 2048 flow. Second operand 12 states and 209 transitions. [2025-02-08 08:35:59,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 177 transitions, 2603 flow [2025-02-08 08:35:59,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 177 transitions, 2428 flow, removed 23 selfloop flow, removed 13 redundant places. [2025-02-08 08:35:59,229 INFO L231 Difference]: Finished difference. Result has 198 places, 146 transitions, 2075 flow [2025-02-08 08:35:59,229 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1896, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2075, PETRI_PLACES=198, PETRI_TRANSITIONS=146} [2025-02-08 08:35:59,229 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 162 predicate places. [2025-02-08 08:35:59,229 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 146 transitions, 2075 flow [2025-02-08 08:35:59,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:59,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:59,230 INFO L206 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] [2025-02-08 08:35:59,236 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2025-02-08 08:35:59,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2025-02-08 08:35:59,430 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:35:59,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1739760679, now seen corresponding path program 27 times [2025-02-08 08:35:59,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:59,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100941319] [2025-02-08 08:35:59,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:59,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:59,434 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:59,436 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:59,436 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:59,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100941319] [2025-02-08 08:35:59,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100941319] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:35:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250461045] [2025-02-08 08:35:59,515 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:35:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:59,517 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:35:59,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2025-02-08 08:35:59,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:59,583 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:59,583 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:35:59,583 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:59,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:35:59,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:35:59,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:59,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:35:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:59,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250461045] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:35:59,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:35:59,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:35:59,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541055957] [2025-02-08 08:35:59,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:35:59,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:35:59,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:59,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:35:59,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:35:59,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:35:59,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 146 transitions, 2075 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:59,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:59,681 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:35:59,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:59,920 INFO L124 PetriNetUnfolderBase]: 404/868 cut-off events. [2025-02-08 08:35:59,920 INFO L125 PetriNetUnfolderBase]: For 8457/8566 co-relation queries the response was YES. [2025-02-08 08:35:59,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5607 conditions, 868 events. 404/868 cut-off events. For 8457/8566 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4827 event pairs, 97 based on Foata normal form. 11/864 useless extension candidates. Maximal degree in co-relation 5527. Up to 269 conditions per place. [2025-02-08 08:35:59,927 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 104 selfloop transitions, 45 changer transitions 15/179 dead transitions. [2025-02-08 08:35:59,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 179 transitions, 2593 flow [2025-02-08 08:35:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:35:59,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:35:59,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2025-02-08 08:35:59,928 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2025-02-08 08:35:59,928 INFO L175 Difference]: Start difference. First operand has 198 places, 146 transitions, 2075 flow. Second operand 12 states and 208 transitions. [2025-02-08 08:35:59,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 179 transitions, 2593 flow [2025-02-08 08:35:59,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 179 transitions, 2481 flow, removed 19 selfloop flow, removed 8 redundant places. [2025-02-08 08:35:59,953 INFO L231 Difference]: Finished difference. Result has 203 places, 145 transitions, 2072 flow [2025-02-08 08:35:59,953 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1977, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2072, PETRI_PLACES=203, PETRI_TRANSITIONS=145} [2025-02-08 08:35:59,954 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 167 predicate places. [2025-02-08 08:35:59,954 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 145 transitions, 2072 flow [2025-02-08 08:35:59,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:35:59,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:59,954 INFO L206 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] [2025-02-08 08:35:59,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2025-02-08 08:36:00,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88,48 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:00,155 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:00,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:00,155 INFO L85 PathProgramCache]: Analyzing trace with hash 345471121, now seen corresponding path program 28 times [2025-02-08 08:36:00,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:00,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624494407] [2025-02-08 08:36:00,155 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:00,158 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:00,160 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:00,160 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:00,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:00,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:00,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624494407] [2025-02-08 08:36:00,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624494407] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27363229] [2025-02-08 08:36:00,256 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:00,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:00,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:00,258 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:00,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2025-02-08 08:36:00,311 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:00,323 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:00,323 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:00,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:00,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:00,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:00,358 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:00,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:00,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27363229] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:00,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:00,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36179835] [2025-02-08 08:36:00,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:00,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:00,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:00,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:00,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:00,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 145 transitions, 2072 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:00,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:00,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:00,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:00,723 INFO L124 PetriNetUnfolderBase]: 407/869 cut-off events. [2025-02-08 08:36:00,724 INFO L125 PetriNetUnfolderBase]: For 8646/8779 co-relation queries the response was YES. [2025-02-08 08:36:00,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5640 conditions, 869 events. 407/869 cut-off events. For 8646/8779 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4809 event pairs, 108 based on Foata normal form. 11/865 useless extension candidates. Maximal degree in co-relation 5559. Up to 269 conditions per place. [2025-02-08 08:36:00,731 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 94 selfloop transitions, 60 changer transitions 7/176 dead transitions. [2025-02-08 08:36:00,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 176 transitions, 2653 flow [2025-02-08 08:36:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:00,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:00,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2025-02-08 08:36:00,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:00,732 INFO L175 Difference]: Start difference. First operand has 203 places, 145 transitions, 2072 flow. Second operand 12 states and 204 transitions. [2025-02-08 08:36:00,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 176 transitions, 2653 flow [2025-02-08 08:36:00,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 176 transitions, 2529 flow, removed 9 selfloop flow, removed 11 redundant places. [2025-02-08 08:36:00,760 INFO L231 Difference]: Finished difference. Result has 204 places, 153 transitions, 2242 flow [2025-02-08 08:36:00,760 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1968, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2242, PETRI_PLACES=204, PETRI_TRANSITIONS=153} [2025-02-08 08:36:00,760 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 168 predicate places. [2025-02-08 08:36:00,760 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 153 transitions, 2242 flow [2025-02-08 08:36:00,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:00,760 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:00,760 INFO L206 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] [2025-02-08 08:36:00,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Forceful destruction successful, exit code 0 [2025-02-08 08:36:00,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2025-02-08 08:36:00,961 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:00,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:00,961 INFO L85 PathProgramCache]: Analyzing trace with hash -616561975, now seen corresponding path program 29 times [2025-02-08 08:36:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:00,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438314061] [2025-02-08 08:36:00,962 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:00,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:00,965 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:00,966 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:00,966 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:00,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:01,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:01,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438314061] [2025-02-08 08:36:01,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438314061] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:01,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335344160] [2025-02-08 08:36:01,053 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:01,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:01,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:01,055 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:01,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2025-02-08 08:36:01,108 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:01,120 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:01,120 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:01,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:01,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:01,122 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:01,166 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:01,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:01,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335344160] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:01,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:01,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:01,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769638686] [2025-02-08 08:36:01,217 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:01,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:01,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:01,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:01,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:01,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:01,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 153 transitions, 2242 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:01,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:01,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:01,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:01,710 INFO L124 PetriNetUnfolderBase]: 415/887 cut-off events. [2025-02-08 08:36:01,710 INFO L125 PetriNetUnfolderBase]: For 8350/8459 co-relation queries the response was YES. [2025-02-08 08:36:01,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5789 conditions, 887 events. 415/887 cut-off events. For 8350/8459 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4948 event pairs, 112 based on Foata normal form. 11/883 useless extension candidates. Maximal degree in co-relation 5708. Up to 269 conditions per place. [2025-02-08 08:36:01,717 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 96 selfloop transitions, 65 changer transitions 8/184 dead transitions. [2025-02-08 08:36:01,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 184 transitions, 2792 flow [2025-02-08 08:36:01,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 207 transitions. [2025-02-08 08:36:01,718 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45394736842105265 [2025-02-08 08:36:01,718 INFO L175 Difference]: Start difference. First operand has 204 places, 153 transitions, 2242 flow. Second operand 12 states and 207 transitions. [2025-02-08 08:36:01,718 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 184 transitions, 2792 flow [2025-02-08 08:36:01,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 184 transitions, 2685 flow, removed 5 selfloop flow, removed 7 redundant places. [2025-02-08 08:36:01,747 INFO L231 Difference]: Finished difference. Result has 210 places, 157 transitions, 2352 flow [2025-02-08 08:36:01,747 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2144, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2352, PETRI_PLACES=210, PETRI_TRANSITIONS=157} [2025-02-08 08:36:01,747 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 174 predicate places. [2025-02-08 08:36:01,748 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 157 transitions, 2352 flow [2025-02-08 08:36:01,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:01,748 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:01,748 INFO L206 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] [2025-02-08 08:36:01,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2025-02-08 08:36:01,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,50 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:01,948 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:01,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:01,949 INFO L85 PathProgramCache]: Analyzing trace with hash 2072715915, now seen corresponding path program 30 times [2025-02-08 08:36:01,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:01,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404799699] [2025-02-08 08:36:01,949 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:01,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:01,952 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:01,954 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:01,954 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:01,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:02,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:02,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404799699] [2025-02-08 08:36:02,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404799699] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:02,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649975224] [2025-02-08 08:36:02,046 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:02,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:02,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:02,048 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:02,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2025-02-08 08:36:02,102 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:02,116 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:02,116 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:02,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:02,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:02,117 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:02,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:02,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649975224] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:02,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:02,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:02,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264709267] [2025-02-08 08:36:02,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:02,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:02,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:02,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:02,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:02,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:02,245 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 157 transitions, 2352 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:02,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:02,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:02,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:02,596 INFO L124 PetriNetUnfolderBase]: 415/890 cut-off events. [2025-02-08 08:36:02,596 INFO L125 PetriNetUnfolderBase]: For 8899/9030 co-relation queries the response was YES. [2025-02-08 08:36:02,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5883 conditions, 890 events. 415/890 cut-off events. For 8899/9030 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 4966 event pairs, 112 based on Foata normal form. 11/886 useless extension candidates. Maximal degree in co-relation 5800. Up to 269 conditions per place. [2025-02-08 08:36:02,602 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 97 selfloop transitions, 63 changer transitions 8/183 dead transitions. [2025-02-08 08:36:02,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 183 transitions, 2837 flow [2025-02-08 08:36:02,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:02,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:02,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 208 transitions. [2025-02-08 08:36:02,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45614035087719296 [2025-02-08 08:36:02,603 INFO L175 Difference]: Start difference. First operand has 210 places, 157 transitions, 2352 flow. Second operand 12 states and 208 transitions. [2025-02-08 08:36:02,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 183 transitions, 2837 flow [2025-02-08 08:36:02,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 183 transitions, 2695 flow, removed 7 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:02,629 INFO L231 Difference]: Finished difference. Result has 215 places, 159 transitions, 2391 flow [2025-02-08 08:36:02,629 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2220, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2391, PETRI_PLACES=215, PETRI_TRANSITIONS=159} [2025-02-08 08:36:02,630 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 179 predicate places. [2025-02-08 08:36:02,630 INFO L471 AbstractCegarLoop]: Abstraction has has 215 places, 159 transitions, 2391 flow [2025-02-08 08:36:02,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:02,630 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:02,630 INFO L206 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] [2025-02-08 08:36:02,636 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2025-02-08 08:36:02,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,51 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:02,831 INFO L396 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:02,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:02,831 INFO L85 PathProgramCache]: Analyzing trace with hash -876107911, now seen corresponding path program 31 times [2025-02-08 08:36:02,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:02,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376747316] [2025-02-08 08:36:02,831 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:02,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:02,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:02,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:02,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:02,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376747316] [2025-02-08 08:36:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376747316] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:02,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072416676] [2025-02-08 08:36:02,920 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:02,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:02,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:02,922 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:02,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2025-02-08 08:36:02,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:02,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:02,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:02,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:02,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:02,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:03,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:03,083 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:03,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072416676] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:03,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:03,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:03,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261656737] [2025-02-08 08:36:03,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:03,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:03,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:03,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:03,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:03,112 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:03,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 159 transitions, 2391 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:03,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:03,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:03,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:03,442 INFO L124 PetriNetUnfolderBase]: 411/883 cut-off events. [2025-02-08 08:36:03,442 INFO L125 PetriNetUnfolderBase]: For 8994/9127 co-relation queries the response was YES. [2025-02-08 08:36:03,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5872 conditions, 883 events. 411/883 cut-off events. For 8994/9127 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4929 event pairs, 109 based on Foata normal form. 11/879 useless extension candidates. Maximal degree in co-relation 5786. Up to 269 conditions per place. [2025-02-08 08:36:03,449 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 96 selfloop transitions, 64 changer transitions 8/183 dead transitions. [2025-02-08 08:36:03,449 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 183 transitions, 2859 flow [2025-02-08 08:36:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:03,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2025-02-08 08:36:03,449 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:03,449 INFO L175 Difference]: Start difference. First operand has 215 places, 159 transitions, 2391 flow. Second operand 12 states and 204 transitions. [2025-02-08 08:36:03,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 183 transitions, 2859 flow [2025-02-08 08:36:03,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 183 transitions, 2755 flow, removed 9 selfloop flow, removed 6 redundant places. [2025-02-08 08:36:03,478 INFO L231 Difference]: Finished difference. Result has 221 places, 159 transitions, 2429 flow [2025-02-08 08:36:03,478 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2293, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2429, PETRI_PLACES=221, PETRI_TRANSITIONS=159} [2025-02-08 08:36:03,478 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 185 predicate places. [2025-02-08 08:36:03,478 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 159 transitions, 2429 flow [2025-02-08 08:36:03,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:03,478 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:03,478 INFO L206 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] [2025-02-08 08:36:03,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2025-02-08 08:36:03,679 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,52 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:03,679 INFO L396 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:03,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:03,679 INFO L85 PathProgramCache]: Analyzing trace with hash -251975615, now seen corresponding path program 24 times [2025-02-08 08:36:03,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:03,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989791311] [2025-02-08 08:36:03,679 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:03,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:03,682 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:03,684 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:03,684 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:03,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:03,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:03,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989791311] [2025-02-08 08:36:03,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989791311] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:03,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201952528] [2025-02-08 08:36:03,783 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:03,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:03,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:03,785 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:03,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2025-02-08 08:36:03,839 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:03,850 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:03,850 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:03,851 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:03,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:03,851 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:03,881 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:03,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:03,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201952528] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:03,911 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:03,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:03,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553433587] [2025-02-08 08:36:03,911 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:03,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:03,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:03,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:03,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:03,940 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:03,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 159 transitions, 2429 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:03,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:03,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:03,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:04,207 INFO L124 PetriNetUnfolderBase]: 412/881 cut-off events. [2025-02-08 08:36:04,207 INFO L125 PetriNetUnfolderBase]: For 9867/9966 co-relation queries the response was YES. [2025-02-08 08:36:04,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5901 conditions, 881 events. 412/881 cut-off events. For 9867/9966 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4916 event pairs, 173 based on Foata normal form. 9/873 useless extension candidates. Maximal degree in co-relation 5814. Up to 500 conditions per place. [2025-02-08 08:36:04,213 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 134 selfloop transitions, 35 changer transitions 8/190 dead transitions. [2025-02-08 08:36:04,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 190 transitions, 3046 flow [2025-02-08 08:36:04,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:36:04,214 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:36:04,214 INFO L175 Difference]: Start difference. First operand has 221 places, 159 transitions, 2429 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:36:04,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 190 transitions, 3046 flow [2025-02-08 08:36:04,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 190 transitions, 2906 flow, removed 7 selfloop flow, removed 11 redundant places. [2025-02-08 08:36:04,242 INFO L231 Difference]: Finished difference. Result has 222 places, 162 transitions, 2441 flow [2025-02-08 08:36:04,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2293, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2441, PETRI_PLACES=222, PETRI_TRANSITIONS=162} [2025-02-08 08:36:04,242 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 186 predicate places. [2025-02-08 08:36:04,242 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 162 transitions, 2441 flow [2025-02-08 08:36:04,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:04,242 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:04,243 INFO L206 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] [2025-02-08 08:36:04,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2025-02-08 08:36:04,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,53 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:04,443 INFO L396 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:04,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:04,444 INFO L85 PathProgramCache]: Analyzing trace with hash 962365971, now seen corresponding path program 32 times [2025-02-08 08:36:04,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:04,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449621447] [2025-02-08 08:36:04,444 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:04,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:04,448 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:04,452 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:04,452 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:04,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:04,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:04,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449621447] [2025-02-08 08:36:04,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449621447] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:04,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008244567] [2025-02-08 08:36:04,536 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:04,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:04,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:04,538 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:04,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2025-02-08 08:36:04,594 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:04,606 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:04,606 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:04,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:04,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:04,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:04,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:04,653 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:04,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:04,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008244567] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:04,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:04,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:04,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691668912] [2025-02-08 08:36:04,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:04,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:04,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:04,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:04,724 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:04,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 162 transitions, 2441 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:04,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:04,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:04,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:05,065 INFO L124 PetriNetUnfolderBase]: 418/899 cut-off events. [2025-02-08 08:36:05,065 INFO L125 PetriNetUnfolderBase]: For 9004/9135 co-relation queries the response was YES. [2025-02-08 08:36:05,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5913 conditions, 899 events. 418/899 cut-off events. For 9004/9135 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5052 event pairs, 108 based on Foata normal form. 11/895 useless extension candidates. Maximal degree in co-relation 5826. Up to 272 conditions per place. [2025-02-08 08:36:05,071 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 115 selfloop transitions, 54 changer transitions 8/192 dead transitions. [2025-02-08 08:36:05,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 192 transitions, 3000 flow [2025-02-08 08:36:05,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:05,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:05,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 206 transitions. [2025-02-08 08:36:05,072 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4517543859649123 [2025-02-08 08:36:05,072 INFO L175 Difference]: Start difference. First operand has 222 places, 162 transitions, 2441 flow. Second operand 12 states and 206 transitions. [2025-02-08 08:36:05,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 192 transitions, 3000 flow [2025-02-08 08:36:05,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 192 transitions, 2943 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-08 08:36:05,100 INFO L231 Difference]: Finished difference. Result has 230 places, 167 transitions, 2593 flow [2025-02-08 08:36:05,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2384, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2593, PETRI_PLACES=230, PETRI_TRANSITIONS=167} [2025-02-08 08:36:05,100 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 194 predicate places. [2025-02-08 08:36:05,100 INFO L471 AbstractCegarLoop]: Abstraction has has 230 places, 167 transitions, 2593 flow [2025-02-08 08:36:05,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:05,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:05,101 INFO L206 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] [2025-02-08 08:36:05,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2025-02-08 08:36:05,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable94 [2025-02-08 08:36:05,301 INFO L396 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:05,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:05,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1353713791, now seen corresponding path program 25 times [2025-02-08 08:36:05,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:05,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411989509] [2025-02-08 08:36:05,302 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:05,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:05,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:05,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:05,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:05,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:05,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:05,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411989509] [2025-02-08 08:36:05,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411989509] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:05,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151384766] [2025-02-08 08:36:05,419 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:05,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:05,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:05,421 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:05,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2025-02-08 08:36:05,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:05,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:05,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:05,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:05,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:05,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:05,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:05,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:05,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:05,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151384766] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:05,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:05,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:05,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035487727] [2025-02-08 08:36:05,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:05,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:05,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:05,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:05,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:05,560 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:05,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 230 places, 167 transitions, 2593 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:05,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:05,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:05,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:05,868 INFO L124 PetriNetUnfolderBase]: 416/892 cut-off events. [2025-02-08 08:36:05,868 INFO L125 PetriNetUnfolderBase]: For 10266/10365 co-relation queries the response was YES. [2025-02-08 08:36:05,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5999 conditions, 892 events. 416/892 cut-off events. For 10266/10365 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 5014 event pairs, 174 based on Foata normal form. 9/884 useless extension candidates. Maximal degree in co-relation 5909. Up to 513 conditions per place. [2025-02-08 08:36:05,875 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 139 selfloop transitions, 33 changer transitions 10/195 dead transitions. [2025-02-08 08:36:05,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 195 transitions, 3159 flow [2025-02-08 08:36:05,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:05,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2025-02-08 08:36:05,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44258373205741625 [2025-02-08 08:36:05,876 INFO L175 Difference]: Start difference. First operand has 230 places, 167 transitions, 2593 flow. Second operand 11 states and 185 transitions. [2025-02-08 08:36:05,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 195 transitions, 3159 flow [2025-02-08 08:36:05,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 195 transitions, 3058 flow, removed 6 selfloop flow, removed 7 redundant places. [2025-02-08 08:36:05,921 INFO L231 Difference]: Finished difference. Result has 233 places, 165 transitions, 2519 flow [2025-02-08 08:36:05,922 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2494, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2519, PETRI_PLACES=233, PETRI_TRANSITIONS=165} [2025-02-08 08:36:05,922 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 197 predicate places. [2025-02-08 08:36:05,922 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 165 transitions, 2519 flow [2025-02-08 08:36:05,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:05,922 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:05,922 INFO L206 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] [2025-02-08 08:36:05,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2025-02-08 08:36:06,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,55 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:06,123 INFO L396 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:06,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:06,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1618236907, now seen corresponding path program 33 times [2025-02-08 08:36:06,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:06,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968489748] [2025-02-08 08:36:06,123 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:06,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:06,126 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:06,129 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:06,129 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:06,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:06,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:06,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968489748] [2025-02-08 08:36:06,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968489748] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:06,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209440998] [2025-02-08 08:36:06,212 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:06,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:06,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:06,214 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:06,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2025-02-08 08:36:06,269 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:06,282 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:06,282 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:06,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:06,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:06,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:06,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:06,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:06,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209440998] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:06,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:06,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:06,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668297972] [2025-02-08 08:36:06,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:06,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:06,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:06,377 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:06,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:06,397 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:06,397 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 165 transitions, 2519 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:06,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:06,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:06,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:06,727 INFO L124 PetriNetUnfolderBase]: 411/887 cut-off events. [2025-02-08 08:36:06,727 INFO L125 PetriNetUnfolderBase]: For 8946/9077 co-relation queries the response was YES. [2025-02-08 08:36:06,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5862 conditions, 887 events. 411/887 cut-off events. For 8946/9077 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4957 event pairs, 108 based on Foata normal form. 11/883 useless extension candidates. Maximal degree in co-relation 5772. Up to 269 conditions per place. [2025-02-08 08:36:06,734 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 115 selfloop transitions, 53 changer transitions 8/191 dead transitions. [2025-02-08 08:36:06,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 191 transitions, 3004 flow [2025-02-08 08:36:06,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:06,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:06,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 209 transitions. [2025-02-08 08:36:06,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2025-02-08 08:36:06,735 INFO L175 Difference]: Start difference. First operand has 233 places, 165 transitions, 2519 flow. Second operand 12 states and 209 transitions. [2025-02-08 08:36:06,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 191 transitions, 3004 flow [2025-02-08 08:36:06,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 191 transitions, 2934 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:06,766 INFO L231 Difference]: Finished difference. Result has 234 places, 165 transitions, 2557 flow [2025-02-08 08:36:06,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2449, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2557, PETRI_PLACES=234, PETRI_TRANSITIONS=165} [2025-02-08 08:36:06,767 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 198 predicate places. [2025-02-08 08:36:06,767 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 165 transitions, 2557 flow [2025-02-08 08:36:06,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:06,767 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:06,767 INFO L206 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] [2025-02-08 08:36:06,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2025-02-08 08:36:06,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable96 [2025-02-08 08:36:06,968 INFO L396 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:06,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash 5350585, now seen corresponding path program 34 times [2025-02-08 08:36:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:06,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077310913] [2025-02-08 08:36:06,968 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:06,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:06,971 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:06,973 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:06,973 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:06,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:07,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:07,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077310913] [2025-02-08 08:36:07,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077310913] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:07,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442606177] [2025-02-08 08:36:07,069 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:07,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:07,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:07,071 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:07,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2025-02-08 08:36:07,126 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:07,138 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:07,138 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:07,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:07,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:07,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:07,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:07,185 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442606177] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:07,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589411048] [2025-02-08 08:36:07,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:07,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:07,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:07,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:07,235 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:07,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:07,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 165 transitions, 2557 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:07,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:07,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:07,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:07,586 INFO L124 PetriNetUnfolderBase]: 407/880 cut-off events. [2025-02-08 08:36:07,586 INFO L125 PetriNetUnfolderBase]: For 9584/9717 co-relation queries the response was YES. [2025-02-08 08:36:07,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5898 conditions, 880 events. 407/880 cut-off events. For 9584/9717 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4936 event pairs, 103 based on Foata normal form. 11/876 useless extension candidates. Maximal degree in co-relation 5807. Up to 269 conditions per place. [2025-02-08 08:36:07,593 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 114 selfloop transitions, 54 changer transitions 8/191 dead transitions. [2025-02-08 08:36:07,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 191 transitions, 3048 flow [2025-02-08 08:36:07,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2025-02-08 08:36:07,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2025-02-08 08:36:07,594 INFO L175 Difference]: Start difference. First operand has 234 places, 165 transitions, 2557 flow. Second operand 12 states and 205 transitions. [2025-02-08 08:36:07,594 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 191 transitions, 3048 flow [2025-02-08 08:36:07,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 191 transitions, 2938 flow, removed 5 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:07,623 INFO L231 Difference]: Finished difference. Result has 236 places, 165 transitions, 2560 flow [2025-02-08 08:36:07,623 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2451, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2560, PETRI_PLACES=236, PETRI_TRANSITIONS=165} [2025-02-08 08:36:07,623 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 200 predicate places. [2025-02-08 08:36:07,623 INFO L471 AbstractCegarLoop]: Abstraction has has 236 places, 165 transitions, 2560 flow [2025-02-08 08:36:07,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:07,623 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:07,623 INFO L206 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] [2025-02-08 08:36:07,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2025-02-08 08:36:07,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2025-02-08 08:36:07,824 INFO L396 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:07,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash 86649671, now seen corresponding path program 35 times [2025-02-08 08:36:07,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:07,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751156109] [2025-02-08 08:36:07,825 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:07,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:07,827 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:07,829 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:07,829 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:07,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:07,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751156109] [2025-02-08 08:36:07,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751156109] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:07,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673114094] [2025-02-08 08:36:07,922 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:07,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:07,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:07,924 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:07,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2025-02-08 08:36:07,980 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:07,992 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:07,992 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:07,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:07,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:07,993 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:08,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:08,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:08,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673114094] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:08,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:08,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:08,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057005980] [2025-02-08 08:36:08,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:08,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:08,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:08,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:08,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:08,138 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:08,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 165 transitions, 2560 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:08,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:08,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:08,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:08,531 INFO L124 PetriNetUnfolderBase]: 404/877 cut-off events. [2025-02-08 08:36:08,532 INFO L125 PetriNetUnfolderBase]: For 9513/9644 co-relation queries the response was YES. [2025-02-08 08:36:08,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5891 conditions, 877 events. 404/877 cut-off events. For 9513/9644 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4917 event pairs, 108 based on Foata normal form. 11/873 useless extension candidates. Maximal degree in co-relation 5800. Up to 269 conditions per place. [2025-02-08 08:36:08,537 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 100 selfloop transitions, 63 changer transitions 7/185 dead transitions. [2025-02-08 08:36:08,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 185 transitions, 2999 flow [2025-02-08 08:36:08,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2025-02-08 08:36:08,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44298245614035087 [2025-02-08 08:36:08,538 INFO L175 Difference]: Start difference. First operand has 236 places, 165 transitions, 2560 flow. Second operand 12 states and 202 transitions. [2025-02-08 08:36:08,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 185 transitions, 2999 flow [2025-02-08 08:36:08,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 185 transitions, 2877 flow, removed 4 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:08,567 INFO L231 Difference]: Finished difference. Result has 237 places, 165 transitions, 2568 flow [2025-02-08 08:36:08,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2446, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2568, PETRI_PLACES=237, PETRI_TRANSITIONS=165} [2025-02-08 08:36:08,567 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 201 predicate places. [2025-02-08 08:36:08,567 INFO L471 AbstractCegarLoop]: Abstraction has has 237 places, 165 transitions, 2568 flow [2025-02-08 08:36:08,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:08,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:08,568 INFO L206 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] [2025-02-08 08:36:08,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2025-02-08 08:36:08,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,58 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:08,768 INFO L396 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:08,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:08,769 INFO L85 PathProgramCache]: Analyzing trace with hash 632328993, now seen corresponding path program 36 times [2025-02-08 08:36:08,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:08,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076362492] [2025-02-08 08:36:08,769 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:08,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:08,773 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:08,777 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:08,777 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:08,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:08,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:08,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076362492] [2025-02-08 08:36:08,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076362492] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:08,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445312971] [2025-02-08 08:36:08,881 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:08,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:08,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:08,883 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:08,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2025-02-08 08:36:08,940 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:08,953 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:08,953 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:08,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:08,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:08,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:09,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:09,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:09,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445312971] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:09,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:09,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:09,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442446731] [2025-02-08 08:36:09,061 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:09,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:09,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:09,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:09,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:09,087 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:09,088 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 165 transitions, 2568 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:09,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:09,088 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:09,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:09,436 INFO L124 PetriNetUnfolderBase]: 401/872 cut-off events. [2025-02-08 08:36:09,436 INFO L125 PetriNetUnfolderBase]: For 9473/9606 co-relation queries the response was YES. [2025-02-08 08:36:09,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5837 conditions, 872 events. 401/872 cut-off events. For 9473/9606 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4885 event pairs, 109 based on Foata normal form. 11/868 useless extension candidates. Maximal degree in co-relation 5746. Up to 269 conditions per place. [2025-02-08 08:36:09,442 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 98 selfloop transitions, 65 changer transitions 6/184 dead transitions. [2025-02-08 08:36:09,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 184 transitions, 2994 flow [2025-02-08 08:36:09,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:09,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:36:09,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:36:09,443 INFO L175 Difference]: Start difference. First operand has 237 places, 165 transitions, 2568 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:36:09,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 184 transitions, 2994 flow [2025-02-08 08:36:09,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 184 transitions, 2856 flow, removed 2 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:09,474 INFO L231 Difference]: Finished difference. Result has 238 places, 165 transitions, 2563 flow [2025-02-08 08:36:09,474 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2435, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2563, PETRI_PLACES=238, PETRI_TRANSITIONS=165} [2025-02-08 08:36:09,474 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 202 predicate places. [2025-02-08 08:36:09,474 INFO L471 AbstractCegarLoop]: Abstraction has has 238 places, 165 transitions, 2563 flow [2025-02-08 08:36:09,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:09,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:09,475 INFO L206 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] [2025-02-08 08:36:09,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2025-02-08 08:36:09,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,59 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:09,675 INFO L396 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:09,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1837222075, now seen corresponding path program 37 times [2025-02-08 08:36:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:09,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323816510] [2025-02-08 08:36:09,676 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:09,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:09,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:09,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:09,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:09,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:09,790 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:09,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:09,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323816510] [2025-02-08 08:36:09,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323816510] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:09,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797772323] [2025-02-08 08:36:09,790 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:09,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:09,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:09,792 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:09,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2025-02-08 08:36:09,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:09,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:09,860 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:09,860 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:09,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:09,861 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:09,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:09,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797772323] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:09,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:09,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:09,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008091020] [2025-02-08 08:36:09,962 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:09,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:09,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:09,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:09,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:09,989 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:09,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 165 transitions, 2563 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:09,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:09,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:09,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:10,347 INFO L124 PetriNetUnfolderBase]: 398/867 cut-off events. [2025-02-08 08:36:10,347 INFO L125 PetriNetUnfolderBase]: For 9355/9488 co-relation queries the response was YES. [2025-02-08 08:36:10,352 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5795 conditions, 867 events. 398/867 cut-off events. For 9355/9488 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4855 event pairs, 105 based on Foata normal form. 11/863 useless extension candidates. Maximal degree in co-relation 5704. Up to 269 conditions per place. [2025-02-08 08:36:10,354 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 102 selfloop transitions, 62 changer transitions 7/186 dead transitions. [2025-02-08 08:36:10,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 186 transitions, 2993 flow [2025-02-08 08:36:10,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2025-02-08 08:36:10,355 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:10,355 INFO L175 Difference]: Start difference. First operand has 238 places, 165 transitions, 2563 flow. Second operand 12 states and 204 transitions. [2025-02-08 08:36:10,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 186 transitions, 2993 flow [2025-02-08 08:36:10,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 186 transitions, 2863 flow, removed 1 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:10,418 INFO L231 Difference]: Finished difference. Result has 240 places, 164 transitions, 2541 flow [2025-02-08 08:36:10,419 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2433, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2541, PETRI_PLACES=240, PETRI_TRANSITIONS=164} [2025-02-08 08:36:10,419 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 204 predicate places. [2025-02-08 08:36:10,419 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 164 transitions, 2541 flow [2025-02-08 08:36:10,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:10,419 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:10,419 INFO L206 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] [2025-02-08 08:36:10,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2025-02-08 08:36:10,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,60 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:10,620 INFO L396 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:10,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:10,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1290757855, now seen corresponding path program 38 times [2025-02-08 08:36:10,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:10,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580536264] [2025-02-08 08:36:10,621 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:10,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:10,624 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:10,628 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:10,628 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:10,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:10,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580536264] [2025-02-08 08:36:10,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580536264] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:10,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626221575] [2025-02-08 08:36:10,711 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:10,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:10,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:10,713 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:10,714 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2025-02-08 08:36:10,771 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:10,785 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:10,785 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:10,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:10,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:10,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:10,851 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:10,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:10,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:10,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626221575] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:10,908 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:10,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:10,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500600512] [2025-02-08 08:36:10,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:10,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:10,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:10,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:10,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:10,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:10,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 164 transitions, 2541 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:10,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:10,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:10,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:11,252 INFO L124 PetriNetUnfolderBase]: 398/868 cut-off events. [2025-02-08 08:36:11,252 INFO L125 PetriNetUnfolderBase]: For 9459/9590 co-relation queries the response was YES. [2025-02-08 08:36:11,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5841 conditions, 868 events. 398/868 cut-off events. For 9459/9590 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4860 event pairs, 106 based on Foata normal form. 11/864 useless extension candidates. Maximal degree in co-relation 5749. Up to 269 conditions per place. [2025-02-08 08:36:11,258 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 104 selfloop transitions, 61 changer transitions 6/186 dead transitions. [2025-02-08 08:36:11,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 186 transitions, 3029 flow [2025-02-08 08:36:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:11,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:11,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 204 transitions. [2025-02-08 08:36:11,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:11,259 INFO L175 Difference]: Start difference. First operand has 240 places, 164 transitions, 2541 flow. Second operand 12 states and 204 transitions. [2025-02-08 08:36:11,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 186 transitions, 3029 flow [2025-02-08 08:36:11,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 186 transitions, 2895 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:11,288 INFO L231 Difference]: Finished difference. Result has 242 places, 167 transitions, 2599 flow [2025-02-08 08:36:11,288 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2415, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2599, PETRI_PLACES=242, PETRI_TRANSITIONS=167} [2025-02-08 08:36:11,288 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 206 predicate places. [2025-02-08 08:36:11,288 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 167 transitions, 2599 flow [2025-02-08 08:36:11,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:11,288 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:11,288 INFO L206 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] [2025-02-08 08:36:11,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2025-02-08 08:36:11,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101,61 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:11,489 INFO L396 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:11,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:11,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1793852395, now seen corresponding path program 39 times [2025-02-08 08:36:11,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:11,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530404274] [2025-02-08 08:36:11,489 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:11,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:11,492 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:11,495 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:11,495 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:11,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:11,588 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:11,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:11,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530404274] [2025-02-08 08:36:11,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530404274] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:11,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363981812] [2025-02-08 08:36:11,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:11,590 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:11,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2025-02-08 08:36:11,648 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:11,663 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:11,663 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:11,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:11,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:11,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:11,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:11,710 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:11,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:11,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363981812] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:11,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:11,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634229861] [2025-02-08 08:36:11,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:11,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:11,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:11,756 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:11,774 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:11,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 167 transitions, 2599 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:11,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:11,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:11,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:12,097 INFO L124 PetriNetUnfolderBase]: 395/863 cut-off events. [2025-02-08 08:36:12,098 INFO L125 PetriNetUnfolderBase]: For 9429/9562 co-relation queries the response was YES. [2025-02-08 08:36:12,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5821 conditions, 863 events. 395/863 cut-off events. For 9429/9562 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4862 event pairs, 104 based on Foata normal form. 11/859 useless extension candidates. Maximal degree in co-relation 5727. Up to 269 conditions per place. [2025-02-08 08:36:12,103 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 98 selfloop transitions, 62 changer transitions 10/185 dead transitions. [2025-02-08 08:36:12,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 185 transitions, 3003 flow [2025-02-08 08:36:12,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:12,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:12,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:36:12,104 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:36:12,104 INFO L175 Difference]: Start difference. First operand has 242 places, 167 transitions, 2599 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:36:12,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 185 transitions, 3003 flow [2025-02-08 08:36:12,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 185 transitions, 2888 flow, removed 3 selfloop flow, removed 7 redundant places. [2025-02-08 08:36:12,136 INFO L231 Difference]: Finished difference. Result has 245 places, 163 transitions, 2547 flow [2025-02-08 08:36:12,136 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2484, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2547, PETRI_PLACES=245, PETRI_TRANSITIONS=163} [2025-02-08 08:36:12,136 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 209 predicate places. [2025-02-08 08:36:12,136 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 163 transitions, 2547 flow [2025-02-08 08:36:12,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:12,137 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:12,137 INFO L206 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] [2025-02-08 08:36:12,144 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2025-02-08 08:36:12,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2025-02-08 08:36:12,338 INFO L396 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:12,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:12,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1619281705, now seen corresponding path program 40 times [2025-02-08 08:36:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283551124] [2025-02-08 08:36:12,338 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:12,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:12,341 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:12,343 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:12,343 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:12,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:12,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:12,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283551124] [2025-02-08 08:36:12,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283551124] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:12,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217673652] [2025-02-08 08:36:12,433 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:12,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:12,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:12,435 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:12,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2025-02-08 08:36:12,491 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:12,503 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:12,503 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:12,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:12,504 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:12,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:12,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:12,551 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:12,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:12,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217673652] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:12,599 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:12,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:12,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427516805] [2025-02-08 08:36:12,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:12,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:12,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:12,600 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:12,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:12,626 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:12,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 163 transitions, 2547 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:12,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:12,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:12,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:12,934 INFO L124 PetriNetUnfolderBase]: 390/853 cut-off events. [2025-02-08 08:36:12,934 INFO L125 PetriNetUnfolderBase]: For 9308/9439 co-relation queries the response was YES. [2025-02-08 08:36:12,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5752 conditions, 853 events. 390/853 cut-off events. For 9308/9439 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4760 event pairs, 102 based on Foata normal form. 11/849 useless extension candidates. Maximal degree in co-relation 5658. Up to 269 conditions per place. [2025-02-08 08:36:12,941 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 112 selfloop transitions, 51 changer transitions 6/184 dead transitions. [2025-02-08 08:36:12,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 184 transitions, 2990 flow [2025-02-08 08:36:12,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:12,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2025-02-08 08:36:12,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2025-02-08 08:36:12,942 INFO L175 Difference]: Start difference. First operand has 245 places, 163 transitions, 2547 flow. Second operand 12 states and 205 transitions. [2025-02-08 08:36:12,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 184 transitions, 2990 flow [2025-02-08 08:36:12,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 184 transitions, 2840 flow, removed 3 selfloop flow, removed 14 redundant places. [2025-02-08 08:36:12,974 INFO L231 Difference]: Finished difference. Result has 239 places, 163 transitions, 2492 flow [2025-02-08 08:36:12,975 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2399, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2492, PETRI_PLACES=239, PETRI_TRANSITIONS=163} [2025-02-08 08:36:12,975 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 203 predicate places. [2025-02-08 08:36:12,975 INFO L471 AbstractCegarLoop]: Abstraction has has 239 places, 163 transitions, 2492 flow [2025-02-08 08:36:12,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:12,975 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:12,975 INFO L206 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] [2025-02-08 08:36:12,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2025-02-08 08:36:13,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2025-02-08 08:36:13,176 INFO L396 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:13,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash 886669739, now seen corresponding path program 26 times [2025-02-08 08:36:13,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:13,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669789618] [2025-02-08 08:36:13,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:13,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:13,180 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:13,183 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:13,184 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:13,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:13,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:13,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:13,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669789618] [2025-02-08 08:36:13,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669789618] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:13,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250473690] [2025-02-08 08:36:13,280 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:13,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:13,282 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:13,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2025-02-08 08:36:13,342 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:13,354 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:13,354 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:13,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:13,355 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:13,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:13,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:13,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:13,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250473690] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:13,412 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:13,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666378957] [2025-02-08 08:36:13,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:13,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:13,413 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:13,413 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:13,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:13,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 163 transitions, 2492 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:13,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:13,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:13,435 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:13,732 INFO L124 PetriNetUnfolderBase]: 399/873 cut-off events. [2025-02-08 08:36:13,733 INFO L125 PetriNetUnfolderBase]: For 9849/9948 co-relation queries the response was YES. [2025-02-08 08:36:13,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5800 conditions, 873 events. 399/873 cut-off events. For 9849/9948 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 4948 event pairs, 164 based on Foata normal form. 9/865 useless extension candidates. Maximal degree in co-relation 5708. Up to 479 conditions per place. [2025-02-08 08:36:13,738 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 140 selfloop transitions, 32 changer transitions 12/197 dead transitions. [2025-02-08 08:36:13,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 197 transitions, 3118 flow [2025-02-08 08:36:13,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:13,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 188 transitions. [2025-02-08 08:36:13,739 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44976076555023925 [2025-02-08 08:36:13,739 INFO L175 Difference]: Start difference. First operand has 239 places, 163 transitions, 2492 flow. Second operand 11 states and 188 transitions. [2025-02-08 08:36:13,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 197 transitions, 3118 flow [2025-02-08 08:36:13,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 197 transitions, 3010 flow, removed 4 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:13,776 INFO L231 Difference]: Finished difference. Result has 242 places, 163 transitions, 2453 flow [2025-02-08 08:36:13,776 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2386, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2453, PETRI_PLACES=242, PETRI_TRANSITIONS=163} [2025-02-08 08:36:13,776 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 206 predicate places. [2025-02-08 08:36:13,776 INFO L471 AbstractCegarLoop]: Abstraction has has 242 places, 163 transitions, 2453 flow [2025-02-08 08:36:13,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:13,777 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:13,777 INFO L206 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] [2025-02-08 08:36:13,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2025-02-08 08:36:13,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,64 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:13,977 INFO L396 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:13,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash -788125307, now seen corresponding path program 41 times [2025-02-08 08:36:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:13,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20060632] [2025-02-08 08:36:13,978 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:13,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:13,981 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:13,983 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:13,983 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:13,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:14,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:14,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:14,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20060632] [2025-02-08 08:36:14,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20060632] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:14,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292924680] [2025-02-08 08:36:14,067 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:14,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:14,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:14,069 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:14,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2025-02-08 08:36:14,128 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:14,139 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:14,139 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:14,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:14,140 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:14,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:14,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:14,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:14,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292924680] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:14,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:14,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:14,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760896244] [2025-02-08 08:36:14,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:14,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:14,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:14,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:14,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:14,231 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:14,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 163 transitions, 2453 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:14,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:14,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:14,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:14,531 INFO L124 PetriNetUnfolderBase]: 393/864 cut-off events. [2025-02-08 08:36:14,531 INFO L125 PetriNetUnfolderBase]: For 9056/9187 co-relation queries the response was YES. [2025-02-08 08:36:14,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5742 conditions, 864 events. 393/864 cut-off events. For 9056/9187 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4893 event pairs, 103 based on Foata normal form. 11/860 useless extension candidates. Maximal degree in co-relation 5647. Up to 269 conditions per place. [2025-02-08 08:36:14,537 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 111 selfloop transitions, 53 changer transitions 6/185 dead transitions. [2025-02-08 08:36:14,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 185 transitions, 2940 flow [2025-02-08 08:36:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:14,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:14,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 202 transitions. [2025-02-08 08:36:14,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44298245614035087 [2025-02-08 08:36:14,538 INFO L175 Difference]: Start difference. First operand has 242 places, 163 transitions, 2453 flow. Second operand 12 states and 202 transitions. [2025-02-08 08:36:14,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 185 transitions, 2940 flow [2025-02-08 08:36:14,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 185 transitions, 2865 flow, removed 4 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:14,567 INFO L231 Difference]: Finished difference. Result has 243 places, 166 transitions, 2553 flow [2025-02-08 08:36:14,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2378, PETRI_DIFFERENCE_MINUEND_PLACES=229, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2553, PETRI_PLACES=243, PETRI_TRANSITIONS=166} [2025-02-08 08:36:14,567 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 207 predicate places. [2025-02-08 08:36:14,568 INFO L471 AbstractCegarLoop]: Abstraction has has 243 places, 166 transitions, 2553 flow [2025-02-08 08:36:14,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:14,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:14,568 INFO L206 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] [2025-02-08 08:36:14,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2025-02-08 08:36:14,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105,65 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:14,768 INFO L396 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:14,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:14,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1471578101, now seen corresponding path program 42 times [2025-02-08 08:36:14,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:14,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61076504] [2025-02-08 08:36:14,769 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:14,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:14,772 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:14,774 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:14,774 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:14,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:14,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:14,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61076504] [2025-02-08 08:36:14,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61076504] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:14,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318141393] [2025-02-08 08:36:14,859 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:14,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:14,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:14,861 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:14,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2025-02-08 08:36:14,922 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:14,934 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:14,934 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:14,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:14,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:14,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:14,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:15,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:15,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318141393] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:15,028 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:15,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:15,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447935419] [2025-02-08 08:36:15,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:15,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:15,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:15,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:15,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:15,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:15,047 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 166 transitions, 2553 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:15,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:15,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:15,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:15,394 INFO L124 PetriNetUnfolderBase]: 390/859 cut-off events. [2025-02-08 08:36:15,394 INFO L125 PetriNetUnfolderBase]: For 9160/9277 co-relation queries the response was YES. [2025-02-08 08:36:15,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5768 conditions, 859 events. 390/859 cut-off events. For 9160/9277 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 4860 event pairs, 103 based on Foata normal form. 11/855 useless extension candidates. Maximal degree in co-relation 5673. Up to 269 conditions per place. [2025-02-08 08:36:15,402 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 101 selfloop transitions, 56 changer transitions 11/183 dead transitions. [2025-02-08 08:36:15,403 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 183 transitions, 2950 flow [2025-02-08 08:36:15,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 199 transitions. [2025-02-08 08:36:15,403 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43640350877192985 [2025-02-08 08:36:15,403 INFO L175 Difference]: Start difference. First operand has 243 places, 166 transitions, 2553 flow. Second operand 12 states and 199 transitions. [2025-02-08 08:36:15,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 183 transitions, 2950 flow [2025-02-08 08:36:15,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 183 transitions, 2852 flow, removed 4 selfloop flow, removed 7 redundant places. [2025-02-08 08:36:15,433 INFO L231 Difference]: Finished difference. Result has 246 places, 161 transitions, 2491 flow [2025-02-08 08:36:15,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2455, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2491, PETRI_PLACES=246, PETRI_TRANSITIONS=161} [2025-02-08 08:36:15,433 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 210 predicate places. [2025-02-08 08:36:15,433 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 161 transitions, 2491 flow [2025-02-08 08:36:15,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:15,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:15,434 INFO L206 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] [2025-02-08 08:36:15,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2025-02-08 08:36:15,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2025-02-08 08:36:15,634 INFO L396 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:15,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:15,635 INFO L85 PathProgramCache]: Analyzing trace with hash 249504203, now seen corresponding path program 43 times [2025-02-08 08:36:15,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:15,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010286285] [2025-02-08 08:36:15,635 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:15,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:15,638 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:15,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:15,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:15,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:15,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:15,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:15,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010286285] [2025-02-08 08:36:15,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010286285] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:15,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721253695] [2025-02-08 08:36:15,722 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:15,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:15,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:15,724 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:15,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2025-02-08 08:36:15,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:15,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:15,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:15,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:15,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:15,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:15,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:15,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:15,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721253695] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:15,895 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:15,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:15,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074290136] [2025-02-08 08:36:15,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:15,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:15,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:15,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:15,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:15,906 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:15,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 161 transitions, 2491 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:15,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:15,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:15,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:16,288 INFO L124 PetriNetUnfolderBase]: 384/845 cut-off events. [2025-02-08 08:36:16,288 INFO L125 PetriNetUnfolderBase]: For 9122/9231 co-relation queries the response was YES. [2025-02-08 08:36:16,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5670 conditions, 845 events. 384/845 cut-off events. For 9122/9231 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 4737 event pairs, 101 based on Foata normal form. 11/841 useless extension candidates. Maximal degree in co-relation 5575. Up to 269 conditions per place. [2025-02-08 08:36:16,296 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 107 selfloop transitions, 46 changer transitions 12/180 dead transitions. [2025-02-08 08:36:16,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 180 transitions, 2897 flow [2025-02-08 08:36:16,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:16,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:16,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 205 transitions. [2025-02-08 08:36:16,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44956140350877194 [2025-02-08 08:36:16,297 INFO L175 Difference]: Start difference. First operand has 246 places, 161 transitions, 2491 flow. Second operand 12 states and 205 transitions. [2025-02-08 08:36:16,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 180 transitions, 2897 flow [2025-02-08 08:36:16,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 180 transitions, 2755 flow, removed 2 selfloop flow, removed 11 redundant places. [2025-02-08 08:36:16,327 INFO L231 Difference]: Finished difference. Result has 240 places, 156 transitions, 2368 flow [2025-02-08 08:36:16,327 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2349, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2368, PETRI_PLACES=240, PETRI_TRANSITIONS=156} [2025-02-08 08:36:16,327 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 204 predicate places. [2025-02-08 08:36:16,328 INFO L471 AbstractCegarLoop]: Abstraction has has 240 places, 156 transitions, 2368 flow [2025-02-08 08:36:16,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:16,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:16,328 INFO L206 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] [2025-02-08 08:36:16,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2025-02-08 08:36:16,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable107 [2025-02-08 08:36:16,528 INFO L396 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:16,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:16,529 INFO L85 PathProgramCache]: Analyzing trace with hash 94519769, now seen corresponding path program 27 times [2025-02-08 08:36:16,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:16,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487665691] [2025-02-08 08:36:16,529 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:16,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:16,532 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:16,535 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:16,535 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:16,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:16,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:16,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487665691] [2025-02-08 08:36:16,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487665691] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:16,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113205323] [2025-02-08 08:36:16,624 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:16,627 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:16,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2025-02-08 08:36:16,687 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:16,700 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:16,700 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:16,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:16,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:16,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:16,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:16,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113205323] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:16,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:16,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:16,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890683702] [2025-02-08 08:36:16,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:16,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:16,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:16,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:16,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:16,795 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:16,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 156 transitions, 2368 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:16,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:16,795 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:16,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:17,083 INFO L124 PetriNetUnfolderBase]: 381/834 cut-off events. [2025-02-08 08:36:17,084 INFO L125 PetriNetUnfolderBase]: For 9185/9284 co-relation queries the response was YES. [2025-02-08 08:36:17,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5550 conditions, 834 events. 381/834 cut-off events. For 9185/9284 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4654 event pairs, 157 based on Foata normal form. 9/826 useless extension candidates. Maximal degree in co-relation 5456. Up to 452 conditions per place. [2025-02-08 08:36:17,090 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 130 selfloop transitions, 33 changer transitions 8/184 dead transitions. [2025-02-08 08:36:17,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 184 transitions, 2904 flow [2025-02-08 08:36:17,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:17,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2025-02-08 08:36:17,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:17,091 INFO L175 Difference]: Start difference. First operand has 240 places, 156 transitions, 2368 flow. Second operand 11 states and 187 transitions. [2025-02-08 08:36:17,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 184 transitions, 2904 flow [2025-02-08 08:36:17,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 184 transitions, 2759 flow, removed 4 selfloop flow, removed 14 redundant places. [2025-02-08 08:36:17,118 INFO L231 Difference]: Finished difference. Result has 232 places, 156 transitions, 2288 flow [2025-02-08 08:36:17,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2225, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2288, PETRI_PLACES=232, PETRI_TRANSITIONS=156} [2025-02-08 08:36:17,118 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 196 predicate places. [2025-02-08 08:36:17,118 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 156 transitions, 2288 flow [2025-02-08 08:36:17,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:17,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:17,119 INFO L206 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] [2025-02-08 08:36:17,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2025-02-08 08:36:17,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108,68 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:17,319 INFO L396 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:17,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:17,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1813565137, now seen corresponding path program 44 times [2025-02-08 08:36:17,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:17,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075261172] [2025-02-08 08:36:17,320 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:17,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:17,322 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:17,325 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:17,325 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:17,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:17,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075261172] [2025-02-08 08:36:17,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075261172] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:17,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884009481] [2025-02-08 08:36:17,408 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:17,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:17,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:17,410 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:17,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2025-02-08 08:36:17,469 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:17,481 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:17,482 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:17,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:17,482 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:17,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:17,529 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:17,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:17,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884009481] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:17,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:17,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:17,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994779242] [2025-02-08 08:36:17,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:17,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:17,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:17,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:17,596 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:17,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 156 transitions, 2288 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:17,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:17,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:17,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:17,915 INFO L124 PetriNetUnfolderBase]: 378/836 cut-off events. [2025-02-08 08:36:17,915 INFO L125 PetriNetUnfolderBase]: For 8006/8137 co-relation queries the response was YES. [2025-02-08 08:36:17,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5463 conditions, 836 events. 378/836 cut-off events. For 8006/8137 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4693 event pairs, 101 based on Foata normal form. 11/832 useless extension candidates. Maximal degree in co-relation 5370. Up to 269 conditions per place. [2025-02-08 08:36:17,921 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 97 selfloop transitions, 57 changer transitions 7/176 dead transitions. [2025-02-08 08:36:17,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 176 transitions, 2701 flow [2025-02-08 08:36:17,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:17,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 199 transitions. [2025-02-08 08:36:17,922 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43640350877192985 [2025-02-08 08:36:17,922 INFO L175 Difference]: Start difference. First operand has 232 places, 156 transitions, 2288 flow. Second operand 12 states and 199 transitions. [2025-02-08 08:36:17,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 176 transitions, 2701 flow [2025-02-08 08:36:17,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 176 transitions, 2626 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:17,948 INFO L231 Difference]: Finished difference. Result has 233 places, 156 transitions, 2326 flow [2025-02-08 08:36:17,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2213, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2326, PETRI_PLACES=233, PETRI_TRANSITIONS=156} [2025-02-08 08:36:17,948 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 197 predicate places. [2025-02-08 08:36:17,948 INFO L471 AbstractCegarLoop]: Abstraction has has 233 places, 156 transitions, 2326 flow [2025-02-08 08:36:17,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:17,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:17,948 INFO L206 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] [2025-02-08 08:36:17,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2025-02-08 08:36:18,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,69 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:18,149 INFO L396 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:18,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:18,149 INFO L85 PathProgramCache]: Analyzing trace with hash 665787925, now seen corresponding path program 28 times [2025-02-08 08:36:18,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:18,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562525879] [2025-02-08 08:36:18,150 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:18,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:18,153 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:18,154 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:18,154 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:18,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:18,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:18,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562525879] [2025-02-08 08:36:18,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562525879] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:18,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133233722] [2025-02-08 08:36:18,244 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:18,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:18,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:18,246 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:18,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2025-02-08 08:36:18,306 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:18,319 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:18,319 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:18,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:18,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:18,320 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:18,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:18,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133233722] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:18,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648700835] [2025-02-08 08:36:18,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:18,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:18,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:18,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:18,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:18,385 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:18,386 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 156 transitions, 2326 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:18,386 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:18,386 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:18,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:18,674 INFO L124 PetriNetUnfolderBase]: 377/831 cut-off events. [2025-02-08 08:36:18,674 INFO L125 PetriNetUnfolderBase]: For 8627/8726 co-relation queries the response was YES. [2025-02-08 08:36:18,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5485 conditions, 831 events. 377/831 cut-off events. For 8627/8726 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 4678 event pairs, 159 based on Foata normal form. 9/823 useless extension candidates. Maximal degree in co-relation 5392. Up to 453 conditions per place. [2025-02-08 08:36:18,681 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 129 selfloop transitions, 30 changer transitions 10/182 dead transitions. [2025-02-08 08:36:18,681 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 182 transitions, 2840 flow [2025-02-08 08:36:18,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:18,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 185 transitions. [2025-02-08 08:36:18,682 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44258373205741625 [2025-02-08 08:36:18,682 INFO L175 Difference]: Start difference. First operand has 233 places, 156 transitions, 2326 flow. Second operand 11 states and 185 transitions. [2025-02-08 08:36:18,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 182 transitions, 2840 flow [2025-02-08 08:36:18,707 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 182 transitions, 2716 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:18,709 INFO L231 Difference]: Finished difference. Result has 232 places, 153 transitions, 2200 flow [2025-02-08 08:36:18,709 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2206, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=2200, PETRI_PLACES=232, PETRI_TRANSITIONS=153} [2025-02-08 08:36:18,710 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 196 predicate places. [2025-02-08 08:36:18,710 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 153 transitions, 2200 flow [2025-02-08 08:36:18,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:18,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:18,710 INFO L206 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] [2025-02-08 08:36:18,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2025-02-08 08:36:18,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,70 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:18,910 INFO L396 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:18,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:18,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1586511355, now seen corresponding path program 45 times [2025-02-08 08:36:18,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:18,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019562240] [2025-02-08 08:36:18,911 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:18,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:18,914 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:18,916 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:18,916 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:18,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:19,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019562240] [2025-02-08 08:36:19,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019562240] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:19,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649151527] [2025-02-08 08:36:19,004 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:19,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:19,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:19,007 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:19,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2025-02-08 08:36:19,076 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:19,091 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:19,092 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-08 08:36:19,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:19,092 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:19,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,149 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:19,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649151527] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:19,192 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:19,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:19,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942576277] [2025-02-08 08:36:19,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:19,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:19,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:19,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:19,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:19,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:19,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 153 transitions, 2200 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:19,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:19,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:19,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:19,497 INFO L124 PetriNetUnfolderBase]: 372/826 cut-off events. [2025-02-08 08:36:19,497 INFO L125 PetriNetUnfolderBase]: For 7678/7809 co-relation queries the response was YES. [2025-02-08 08:36:19,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5343 conditions, 826 events. 372/826 cut-off events. For 7678/7809 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4641 event pairs, 102 based on Foata normal form. 11/822 useless extension candidates. Maximal degree in co-relation 5251. Up to 261 conditions per place. [2025-02-08 08:36:19,504 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 93 selfloop transitions, 55 changer transitions 9/172 dead transitions. [2025-02-08 08:36:19,504 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 172 transitions, 2593 flow [2025-02-08 08:36:19,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:19,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:19,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2025-02-08 08:36:19,504 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2025-02-08 08:36:19,504 INFO L175 Difference]: Start difference. First operand has 232 places, 153 transitions, 2200 flow. Second operand 12 states and 198 transitions. [2025-02-08 08:36:19,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 172 transitions, 2593 flow [2025-02-08 08:36:19,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 172 transitions, 2513 flow, removed 3 selfloop flow, removed 13 redundant places. [2025-02-08 08:36:19,531 INFO L231 Difference]: Finished difference. Result has 228 places, 151 transitions, 2206 flow [2025-02-08 08:36:19,531 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2120, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2206, PETRI_PLACES=228, PETRI_TRANSITIONS=151} [2025-02-08 08:36:19,532 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 192 predicate places. [2025-02-08 08:36:19,532 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 151 transitions, 2206 flow [2025-02-08 08:36:19,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:19,532 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:19,532 INFO L206 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] [2025-02-08 08:36:19,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2025-02-08 08:36:19,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111,71 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:19,733 INFO L396 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:19,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1702576185, now seen corresponding path program 46 times [2025-02-08 08:36:19,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:19,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290640071] [2025-02-08 08:36:19,733 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:19,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:19,738 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:19,740 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:19,740 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:19,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290640071] [2025-02-08 08:36:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290640071] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981711821] [2025-02-08 08:36:19,834 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:19,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:19,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:19,836 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:19,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2025-02-08 08:36:19,896 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:19,907 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:19,907 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:19,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:19,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:19,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:19,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:19,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981711821] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:19,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:20,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:20,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37792558] [2025-02-08 08:36:20,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:20,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:20,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:20,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:20,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:20,035 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:20,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 151 transitions, 2206 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:20,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:20,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:20,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:20,298 INFO L124 PetriNetUnfolderBase]: 367/815 cut-off events. [2025-02-08 08:36:20,299 INFO L125 PetriNetUnfolderBase]: For 7836/7967 co-relation queries the response was YES. [2025-02-08 08:36:20,303 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5328 conditions, 815 events. 367/815 cut-off events. For 7836/7967 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 4547 event pairs, 102 based on Foata normal form. 11/811 useless extension candidates. Maximal degree in co-relation 5238. Up to 261 conditions per place. [2025-02-08 08:36:20,305 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 90 selfloop transitions, 51 changer transitions 12/168 dead transitions. [2025-02-08 08:36:20,305 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 168 transitions, 2573 flow [2025-02-08 08:36:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:20,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 197 transitions. [2025-02-08 08:36:20,306 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43201754385964913 [2025-02-08 08:36:20,306 INFO L175 Difference]: Start difference. First operand has 228 places, 151 transitions, 2206 flow. Second operand 12 states and 197 transitions. [2025-02-08 08:36:20,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 168 transitions, 2573 flow [2025-02-08 08:36:20,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 228 places, 168 transitions, 2473 flow, removed 3 selfloop flow, removed 8 redundant places. [2025-02-08 08:36:20,331 INFO L231 Difference]: Finished difference. Result has 229 places, 145 transitions, 2121 flow [2025-02-08 08:36:20,332 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=2106, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2121, PETRI_PLACES=229, PETRI_TRANSITIONS=145} [2025-02-08 08:36:20,332 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 193 predicate places. [2025-02-08 08:36:20,332 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 145 transitions, 2121 flow [2025-02-08 08:36:20,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:20,332 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:20,332 INFO L206 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] [2025-02-08 08:36:20,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2025-02-08 08:36:20,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable112 [2025-02-08 08:36:20,539 INFO L396 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:20,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1637253239, now seen corresponding path program 47 times [2025-02-08 08:36:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550581232] [2025-02-08 08:36:20,539 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:20,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:20,542 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:20,544 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:20,544 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:20,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:20,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:20,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550581232] [2025-02-08 08:36:20,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550581232] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:20,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620362835] [2025-02-08 08:36:20,634 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:20,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:20,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:20,636 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:20,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2025-02-08 08:36:20,699 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:20,711 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:20,711 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:20,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:20,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:20,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:20,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:20,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620362835] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:20,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:20,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:20,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399289065] [2025-02-08 08:36:20,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:20,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:20,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:20,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:20,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:20,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:20,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 145 transitions, 2121 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:20,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:20,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:20,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:21,156 INFO L124 PetriNetUnfolderBase]: 361/801 cut-off events. [2025-02-08 08:36:21,156 INFO L125 PetriNetUnfolderBase]: For 7761/7894 co-relation queries the response was YES. [2025-02-08 08:36:21,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5237 conditions, 801 events. 361/801 cut-off events. For 7761/7894 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4441 event pairs, 102 based on Foata normal form. 11/797 useless extension candidates. Maximal degree in co-relation 5148. Up to 261 conditions per place. [2025-02-08 08:36:21,163 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 94 selfloop transitions, 49 changer transitions 6/164 dead transitions. [2025-02-08 08:36:21,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 164 transitions, 2509 flow [2025-02-08 08:36:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:21,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:36:21,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:36:21,164 INFO L175 Difference]: Start difference. First operand has 229 places, 145 transitions, 2121 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:36:21,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 164 transitions, 2509 flow [2025-02-08 08:36:21,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 164 transitions, 2294 flow, removed 7 selfloop flow, removed 19 redundant places. [2025-02-08 08:36:21,188 INFO L231 Difference]: Finished difference. Result has 216 places, 145 transitions, 2011 flow [2025-02-08 08:36:21,188 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1915, PETRI_DIFFERENCE_MINUEND_PLACES=203, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2011, PETRI_PLACES=216, PETRI_TRANSITIONS=145} [2025-02-08 08:36:21,188 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 180 predicate places. [2025-02-08 08:36:21,188 INFO L471 AbstractCegarLoop]: Abstraction has has 216 places, 145 transitions, 2011 flow [2025-02-08 08:36:21,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:21,188 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:21,188 INFO L206 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] [2025-02-08 08:36:21,194 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2025-02-08 08:36:21,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable113 [2025-02-08 08:36:21,389 INFO L396 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:21,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:21,389 INFO L85 PathProgramCache]: Analyzing trace with hash 891874929, now seen corresponding path program 48 times [2025-02-08 08:36:21,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:21,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690647747] [2025-02-08 08:36:21,390 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:21,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:21,393 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:21,395 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:21,395 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:21,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:21,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690647747] [2025-02-08 08:36:21,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690647747] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:21,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862454308] [2025-02-08 08:36:21,496 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:21,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:21,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:21,498 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:21,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2025-02-08 08:36:21,559 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:21,571 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:21,571 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:21,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:21,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:21,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:21,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:21,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:21,660 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862454308] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:21,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29633869] [2025-02-08 08:36:21,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:21,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:21,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:21,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:21,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:21,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:21,677 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 145 transitions, 2011 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:21,677 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:21,677 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:21,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:21,988 INFO L124 PetriNetUnfolderBase]: 359/799 cut-off events. [2025-02-08 08:36:21,989 INFO L125 PetriNetUnfolderBase]: For 7436/7569 co-relation queries the response was YES. [2025-02-08 08:36:21,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5069 conditions, 799 events. 359/799 cut-off events. For 7436/7569 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4444 event pairs, 103 based on Foata normal form. 11/795 useless extension candidates. Maximal degree in co-relation 4986. Up to 261 conditions per place. [2025-02-08 08:36:21,994 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 92 selfloop transitions, 45 changer transitions 11/163 dead transitions. [2025-02-08 08:36:21,994 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 163 transitions, 2382 flow [2025-02-08 08:36:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:21,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 201 transitions. [2025-02-08 08:36:21,995 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4407894736842105 [2025-02-08 08:36:21,995 INFO L175 Difference]: Start difference. First operand has 216 places, 145 transitions, 2011 flow. Second operand 12 states and 201 transitions. [2025-02-08 08:36:21,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 163 transitions, 2382 flow [2025-02-08 08:36:22,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 163 transitions, 2280 flow, removed 2 selfloop flow, removed 9 redundant places. [2025-02-08 08:36:22,018 INFO L231 Difference]: Finished difference. Result has 217 places, 141 transitions, 1952 flow [2025-02-08 08:36:22,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1911, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1952, PETRI_PLACES=217, PETRI_TRANSITIONS=141} [2025-02-08 08:36:22,019 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 181 predicate places. [2025-02-08 08:36:22,019 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 141 transitions, 1952 flow [2025-02-08 08:36:22,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:22,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:22,019 INFO L206 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] [2025-02-08 08:36:22,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2025-02-08 08:36:22,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2025-02-08 08:36:22,220 INFO L396 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:22,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:22,220 INFO L85 PathProgramCache]: Analyzing trace with hash 578028053, now seen corresponding path program 49 times [2025-02-08 08:36:22,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:22,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598960688] [2025-02-08 08:36:22,220 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:22,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:22,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:22,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:22,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:22,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:22,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:22,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:22,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598960688] [2025-02-08 08:36:22,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598960688] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:22,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813796544] [2025-02-08 08:36:22,347 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:22,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:22,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:22,349 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:22,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2025-02-08 08:36:22,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:22,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:22,424 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:22,424 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:22,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:22,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:22,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:22,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:22,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813796544] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:22,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:22,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:22,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649719060] [2025-02-08 08:36:22,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:22,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:22,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:22,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:22,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:22,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:22,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 141 transitions, 1952 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:22,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:22,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:22,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:22,826 INFO L124 PetriNetUnfolderBase]: 355/790 cut-off events. [2025-02-08 08:36:22,826 INFO L125 PetriNetUnfolderBase]: For 7374/7483 co-relation queries the response was YES. [2025-02-08 08:36:22,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4992 conditions, 790 events. 355/790 cut-off events. For 7374/7483 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4363 event pairs, 102 based on Foata normal form. 11/786 useless extension candidates. Maximal degree in co-relation 4909. Up to 261 conditions per place. [2025-02-08 08:36:22,832 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 91 selfloop transitions, 45 changer transitions 9/160 dead transitions. [2025-02-08 08:36:22,832 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 160 transitions, 2314 flow [2025-02-08 08:36:22,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:22,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 200 transitions. [2025-02-08 08:36:22,833 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43859649122807015 [2025-02-08 08:36:22,833 INFO L175 Difference]: Start difference. First operand has 217 places, 141 transitions, 1952 flow. Second operand 12 states and 200 transitions. [2025-02-08 08:36:22,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 160 transitions, 2314 flow [2025-02-08 08:36:22,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 160 transitions, 2202 flow, removed 3 selfloop flow, removed 13 redundant places. [2025-02-08 08:36:22,856 INFO L231 Difference]: Finished difference. Result has 211 places, 139 transitions, 1903 flow [2025-02-08 08:36:22,856 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1840, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1903, PETRI_PLACES=211, PETRI_TRANSITIONS=139} [2025-02-08 08:36:22,856 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 175 predicate places. [2025-02-08 08:36:22,856 INFO L471 AbstractCegarLoop]: Abstraction has has 211 places, 139 transitions, 1903 flow [2025-02-08 08:36:22,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:22,856 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:22,856 INFO L206 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] [2025-02-08 08:36:22,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2025-02-08 08:36:23,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,75 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:23,057 INFO L396 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:23,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:23,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1702529681, now seen corresponding path program 29 times [2025-02-08 08:36:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014080672] [2025-02-08 08:36:23,058 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:23,061 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:23,063 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:23,063 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:23,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:23,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:23,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014080672] [2025-02-08 08:36:23,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014080672] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:23,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310584203] [2025-02-08 08:36:23,148 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:36:23,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:23,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:23,150 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:23,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2025-02-08 08:36:23,211 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:23,225 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:23,225 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:23,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:23,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:23,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:23,261 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:23,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310584203] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:23,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:23,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845836772] [2025-02-08 08:36:23,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:23,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:23,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:23,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:23,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:23,315 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:23,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 139 transitions, 1903 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:23,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:23,315 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:23,316 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:23,590 INFO L124 PetriNetUnfolderBase]: 356/790 cut-off events. [2025-02-08 08:36:23,590 INFO L125 PetriNetUnfolderBase]: For 7749/7848 co-relation queries the response was YES. [2025-02-08 08:36:23,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4962 conditions, 790 events. 356/790 cut-off events. For 7749/7848 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4387 event pairs, 148 based on Foata normal form. 9/782 useless extension candidates. Maximal degree in co-relation 4881. Up to 413 conditions per place. [2025-02-08 08:36:23,596 INFO L140 encePairwiseOnDemand]: 28/38 looper letters, 115 selfloop transitions, 29 changer transitions 11/168 dead transitions. [2025-02-08 08:36:23,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 168 transitions, 2410 flow [2025-02-08 08:36:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-08 08:36:23,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-08 08:36:23,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 187 transitions. [2025-02-08 08:36:23,596 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4473684210526316 [2025-02-08 08:36:23,596 INFO L175 Difference]: Start difference. First operand has 211 places, 139 transitions, 1903 flow. Second operand 11 states and 187 transitions. [2025-02-08 08:36:23,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 168 transitions, 2410 flow [2025-02-08 08:36:23,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 168 transitions, 2314 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:23,619 INFO L231 Difference]: Finished difference. Result has 210 places, 138 transitions, 1844 flow [2025-02-08 08:36:23,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1809, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1844, PETRI_PLACES=210, PETRI_TRANSITIONS=138} [2025-02-08 08:36:23,619 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 174 predicate places. [2025-02-08 08:36:23,620 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 138 transitions, 1844 flow [2025-02-08 08:36:23,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:23,620 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:23,620 INFO L206 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] [2025-02-08 08:36:23,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2025-02-08 08:36:23,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,76 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:23,820 INFO L396 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:23,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:23,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1057001211, now seen corresponding path program 50 times [2025-02-08 08:36:23,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:23,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301373389] [2025-02-08 08:36:23,821 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:23,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:23,824 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:23,827 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:23,827 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:23,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:23,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:23,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301373389] [2025-02-08 08:36:23,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301373389] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:23,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993675637] [2025-02-08 08:36:23,917 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:23,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:23,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:23,919 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:23,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2025-02-08 08:36:23,980 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:23,993 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:23,993 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-08 08:36:23,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:23,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:23,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:24,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:24,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:24,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993675637] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:24,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:24,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2025-02-08 08:36:24,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226691848] [2025-02-08 08:36:24,100 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:24,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-08 08:36:24,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:24,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-08 08:36:24,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-08 08:36:24,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:24,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 138 transitions, 1844 flow. Second operand has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:24,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:24,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:24,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:24,409 INFO L124 PetriNetUnfolderBase]: 350/784 cut-off events. [2025-02-08 08:36:24,409 INFO L125 PetriNetUnfolderBase]: For 6897/7028 co-relation queries the response was YES. [2025-02-08 08:36:24,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4868 conditions, 784 events. 350/784 cut-off events. For 6897/7028 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4362 event pairs, 102 based on Foata normal form. 11/780 useless extension candidates. Maximal degree in co-relation 4786. Up to 261 conditions per place. [2025-02-08 08:36:24,415 INFO L140 encePairwiseOnDemand]: 26/38 looper letters, 91 selfloop transitions, 42 changer transitions 9/157 dead transitions. [2025-02-08 08:36:24,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 157 transitions, 2207 flow [2025-02-08 08:36:24,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-08 08:36:24,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-02-08 08:36:24,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2025-02-08 08:36:24,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4342105263157895 [2025-02-08 08:36:24,416 INFO L175 Difference]: Start difference. First operand has 210 places, 138 transitions, 1844 flow. Second operand 12 states and 198 transitions. [2025-02-08 08:36:24,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 157 transitions, 2207 flow [2025-02-08 08:36:24,438 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 157 transitions, 2143 flow, removed 3 selfloop flow, removed 10 redundant places. [2025-02-08 08:36:24,439 INFO L231 Difference]: Finished difference. Result has 210 places, 136 transitions, 1843 flow [2025-02-08 08:36:24,439 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1780, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1843, PETRI_PLACES=210, PETRI_TRANSITIONS=136} [2025-02-08 08:36:24,440 INFO L279 CegarLoopForPetriNet]: 36 programPoint places, 174 predicate places. [2025-02-08 08:36:24,440 INFO L471 AbstractCegarLoop]: Abstraction has has 210 places, 136 transitions, 1843 flow [2025-02-08 08:36:24,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.615384615384615) internal successors, (164), 13 states have internal predecessors, (164), 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) [2025-02-08 08:36:24,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:24,440 INFO L206 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] [2025-02-08 08:36:24,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2025-02-08 08:36:24,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2025-02-08 08:36:24,640 INFO L396 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2025-02-08 08:36:24,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1038375893, now seen corresponding path program 30 times [2025-02-08 08:36:24,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:24,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703624436] [2025-02-08 08:36:24,641 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:24,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:24,644 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:24,646 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:24,646 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:24,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:24,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:24,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703624436] [2025-02-08 08:36:24,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703624436] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-08 08:36:24,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32378957] [2025-02-08 08:36:24,736 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:24,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:36:24,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:36:24,738 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:36:24,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2025-02-08 08:36:24,800 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:24,813 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:24,813 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2025-02-08 08:36:24,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:24,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-02-08 08:36:24,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:36:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:24,849 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-08 08:36:24,889 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:36:24,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32378957] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-08 08:36:24,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-08 08:36:24,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 11 [2025-02-08 08:36:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500457684] [2025-02-08 08:36:24,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-08 08:36:24,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-08 08:36:24,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:24,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-08 08:36:24,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-08 08:36:24,912 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 38 [2025-02-08 08:36:24,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 136 transitions, 1843 flow. Second operand has 11 states, 11 states have (on average 12.545454545454545) internal successors, (138), 11 states have internal predecessors, (138), 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) [2025-02-08 08:36:24,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:24,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 38 [2025-02-08 08:36:24,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand