./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/chl-file-item-trans.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-trans.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 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:34:55,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:34:55,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:34:55,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:34:55,481 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:34:55,502 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:34:55,503 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:34:55,503 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:34:55,503 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:34:55,503 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:34:55,504 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:34:55,504 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:34:55,504 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:34:55,504 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:34:55,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:34:55,505 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:34:55,506 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:34:55,506 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:55,507 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:34:55,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:34:55,508 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 -> 408d8d7e58240f749ab11087191b04ec647cfea8447827b0505b793eb68a9c0a [2025-02-08 08:34:55,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:34:55,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:34:55,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:34:55,733 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:34:55,733 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:34:55,734 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-02-08 08:34:57,026 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f243d5a50/2cbd3c1fd5f04084a8d0e8d151fa88ff/FLAG8a73e1336 [2025-02-08 08:34:57,275 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:34:57,275 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-file-item-trans.wvr.c [2025-02-08 08:34:57,281 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f243d5a50/2cbd3c1fd5f04084a8d0e8d151fa88ff/FLAG8a73e1336 [2025-02-08 08:34:57,619 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f243d5a50/2cbd3c1fd5f04084a8d0e8d151fa88ff [2025-02-08 08:34:57,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:34:57,627 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:34:57,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:57,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:34:57,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:34:57,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8736a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57, skipping insertion in model container [2025-02-08 08:34:57,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:34:57,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:57,784 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:34:57,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:57,809 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:34:57,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57 WrapperNode [2025-02-08 08:34:57,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:57,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:57,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:34:57,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:34:57,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,835 INFO L138 Inliner]: procedures = 22, calls = 16, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 194 [2025-02-08 08:34:57,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:57,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:34:57,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:34:57,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:34:57,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,854 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 08:34:57,854 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,858 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,859 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:34:57,864 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:34:57,864 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:34:57,864 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:34:57,865 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (1/1) ... [2025-02-08 08:34:57,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:57,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:34:57,892 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 08:34:57,896 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 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:34:57,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:34:57,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:34:57,912 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:34:57,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:34:57,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:34:57,913 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 08:34:57,977 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:34:57,978 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:34:58,091 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: #t~ite2#1 := #t~ret1#1; [2025-02-08 08:34:58,091 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 08:34:58,091 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:58,091 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-12: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:58,091 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-13: #t~ret1#1 := minus_#res#1; [2025-02-08 08:34:58,183 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: #t~ite7#1 := #t~ret6#1; [2025-02-08 08:34:58,183 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 08:34:58,183 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:58,183 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-12: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:58,183 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-13: #t~ret6#1 := minus_#res#1; [2025-02-08 08:34:58,260 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-9: #t~ite12#1 := #t~ret11#1; [2025-02-08 08:34:58,260 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-10: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret11#1 && #t~ret11#1 <= 2147483647; [2025-02-08 08:34:58,260 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-11: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:58,260 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-12: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:58,260 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-13: #t~ret11#1 := minus_#res#1; [2025-02-08 08:34:58,390 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:34:58,390 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:34:58,610 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:34:58,610 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:34:58,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:58 BoogieIcfgContainer [2025-02-08 08:34:58,611 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:34:58,615 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:34:58,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:34:58,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:34:58,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:34:57" (1/3) ... [2025-02-08 08:34:58,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ecada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:58, skipping insertion in model container [2025-02-08 08:34:58,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:57" (2/3) ... [2025-02-08 08:34:58,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ecada3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:58, skipping insertion in model container [2025-02-08 08:34:58,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:58" (3/3) ... [2025-02-08 08:34:58,622 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-file-item-trans.wvr.c [2025-02-08 08:34:58,633 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:34:58,635 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-file-item-trans.wvr.c that has 4 procedures, 46 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:34:58,636 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:34:58,720 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 08:34:58,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 55 places, 54 transitions, 129 flow [2025-02-08 08:34:58,784 INFO L124 PetriNetUnfolderBase]: 9/51 cut-off events. [2025-02-08 08:34:58,789 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:34:58,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 51 events. 9/51 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 123 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2025-02-08 08:34:58,792 INFO L82 GeneralOperation]: Start removeDead. Operand has 55 places, 54 transitions, 129 flow [2025-02-08 08:34:58,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 50 transitions, 118 flow [2025-02-08 08:34:58,808 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:34:58,826 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;@4f58ddb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:34:58,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:34:58,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:34:58,849 INFO L124 PetriNetUnfolderBase]: 9/47 cut-off events. [2025-02-08 08:34:58,849 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:34:58,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:58,849 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 08:34:58,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:34:58,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash -1061062968, now seen corresponding path program 1 times [2025-02-08 08:34:58,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:58,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051330566] [2025-02-08 08:34:58,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:34:58,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:58,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:34:59,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:34:59,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:59,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:59,307 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 08:34:59,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:59,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051330566] [2025-02-08 08:34:59,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051330566] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:59,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:59,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:59,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010786907] [2025-02-08 08:34:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:59,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:59,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:59,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:59,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:59,373 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:34:59,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:59,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:59,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:34:59,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:59,977 INFO L124 PetriNetUnfolderBase]: 2699/3943 cut-off events. [2025-02-08 08:34:59,977 INFO L125 PetriNetUnfolderBase]: For 193/193 co-relation queries the response was YES. [2025-02-08 08:34:59,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7978 conditions, 3943 events. 2699/3943 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 24340 event pairs, 835 based on Foata normal form. 3/3104 useless extension candidates. Maximal degree in co-relation 7232. Up to 1548 conditions per place. [2025-02-08 08:35:00,001 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 97 selfloop transitions, 8 changer transitions 4/125 dead transitions. [2025-02-08 08:35:00,001 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 125 transitions, 525 flow [2025-02-08 08:35:00,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:00,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 235 transitions. [2025-02-08 08:35:00,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7253086419753086 [2025-02-08 08:35:00,012 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 118 flow. Second operand 6 states and 235 transitions. [2025-02-08 08:35:00,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 125 transitions, 525 flow [2025-02-08 08:35:00,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 125 transitions, 487 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:00,026 INFO L231 Difference]: Finished difference. Result has 52 places, 54 transitions, 160 flow [2025-02-08 08:35:00,027 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=160, PETRI_PLACES=52, PETRI_TRANSITIONS=54} [2025-02-08 08:35:00,029 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 1 predicate places. [2025-02-08 08:35:00,030 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 54 transitions, 160 flow [2025-02-08 08:35:00,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:00,030 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 08:35:00,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:35:00,030 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:00,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:00,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1414869450, now seen corresponding path program 2 times [2025-02-08 08:35:00,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:00,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978314378] [2025-02-08 08:35:00,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:00,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:00,044 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:00,060 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:00,060 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:00,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:00,254 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 08:35:00,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:00,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978314378] [2025-02-08 08:35:00,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978314378] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:00,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:00,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:00,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845515470] [2025-02-08 08:35:00,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:00,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:00,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:00,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:00,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:00,261 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:00,261 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 160 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:00,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:00,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:00,834 INFO L124 PetriNetUnfolderBase]: 3560/5485 cut-off events. [2025-02-08 08:35:00,834 INFO L125 PetriNetUnfolderBase]: For 1963/1963 co-relation queries the response was YES. [2025-02-08 08:35:00,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12251 conditions, 5485 events. 3560/5485 cut-off events. For 1963/1963 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 38052 event pairs, 666 based on Foata normal form. 1/4795 useless extension candidates. Maximal degree in co-relation 8361. Up to 2130 conditions per place. [2025-02-08 08:35:00,864 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 107 selfloop transitions, 15 changer transitions 1/139 dead transitions. [2025-02-08 08:35:00,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 139 transitions, 636 flow [2025-02-08 08:35:00,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:00,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 237 transitions. [2025-02-08 08:35:00,867 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7314814814814815 [2025-02-08 08:35:00,867 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 160 flow. Second operand 6 states and 237 transitions. [2025-02-08 08:35:00,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 139 transitions, 636 flow [2025-02-08 08:35:00,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 139 transitions, 636 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:00,880 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 277 flow [2025-02-08 08:35:00,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2025-02-08 08:35:00,882 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 9 predicate places. [2025-02-08 08:35:00,882 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 277 flow [2025-02-08 08:35:00,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,883 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:00,883 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 08:35:00,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:35:00,883 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:00,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1307387080, now seen corresponding path program 3 times [2025-02-08 08:35:00,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:00,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985831949] [2025-02-08 08:35:00,884 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:00,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:00,896 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:00,905 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:00,907 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:00,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:00,977 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 08:35:00,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:00,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985831949] [2025-02-08 08:35:00,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985831949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:00,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:00,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:00,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466000762] [2025-02-08 08:35:00,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:00,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:00,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:00,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:00,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:00,984 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:00,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 277 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:00,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:00,984 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:01,531 INFO L124 PetriNetUnfolderBase]: 3603/5528 cut-off events. [2025-02-08 08:35:01,531 INFO L125 PetriNetUnfolderBase]: For 4644/4644 co-relation queries the response was YES. [2025-02-08 08:35:01,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13865 conditions, 5528 events. 3603/5528 cut-off events. For 4644/4644 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 37771 event pairs, 631 based on Foata normal form. 1/4836 useless extension candidates. Maximal degree in co-relation 10803. Up to 1534 conditions per place. [2025-02-08 08:35:01,560 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 103 selfloop transitions, 16 changer transitions 3/138 dead transitions. [2025-02-08 08:35:01,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 138 transitions, 703 flow [2025-02-08 08:35:01,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:01,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:01,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 234 transitions. [2025-02-08 08:35:01,562 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2025-02-08 08:35:01,562 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 277 flow. Second operand 6 states and 234 transitions. [2025-02-08 08:35:01,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 138 transitions, 703 flow [2025-02-08 08:35:01,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 138 transitions, 701 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:01,575 INFO L231 Difference]: Finished difference. Result has 67 places, 67 transitions, 350 flow [2025-02-08 08:35:01,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=67, PETRI_TRANSITIONS=67} [2025-02-08 08:35:01,576 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 16 predicate places. [2025-02-08 08:35:01,576 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 67 transitions, 350 flow [2025-02-08 08:35:01,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:01,576 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:01,576 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] [2025-02-08 08:35:01,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:35:01,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:01,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:01,577 INFO L85 PathProgramCache]: Analyzing trace with hash -923450989, now seen corresponding path program 1 times [2025-02-08 08:35:01,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:01,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586077305] [2025-02-08 08:35:01,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:01,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:01,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:01,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:01,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:01,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:01,642 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 08:35:01,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:01,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586077305] [2025-02-08 08:35:01,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586077305] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:01,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:01,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:01,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721330097] [2025-02-08 08:35:01,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:01,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:01,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:01,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:01,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:01,648 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:01,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 67 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:01,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:01,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:01,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:02,265 INFO L124 PetriNetUnfolderBase]: 4068/6575 cut-off events. [2025-02-08 08:35:02,265 INFO L125 PetriNetUnfolderBase]: For 9730/10255 co-relation queries the response was YES. [2025-02-08 08:35:02,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16834 conditions, 6575 events. 4068/6575 cut-off events. For 9730/10255 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 47156 event pairs, 1185 based on Foata normal form. 186/5871 useless extension candidates. Maximal degree in co-relation 12174. Up to 4594 conditions per place. [2025-02-08 08:35:02,298 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 59 selfloop transitions, 2 changer transitions 7/91 dead transitions. [2025-02-08 08:35:02,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 91 transitions, 605 flow [2025-02-08 08:35:02,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:02,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2025-02-08 08:35:02,299 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7098765432098766 [2025-02-08 08:35:02,299 INFO L175 Difference]: Start difference. First operand has 67 places, 67 transitions, 350 flow. Second operand 3 states and 115 transitions. [2025-02-08 08:35:02,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 91 transitions, 605 flow [2025-02-08 08:35:02,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 91 transitions, 605 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:02,314 INFO L231 Difference]: Finished difference. Result has 71 places, 66 transitions, 334 flow [2025-02-08 08:35:02,314 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=71, PETRI_TRANSITIONS=66} [2025-02-08 08:35:02,315 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 20 predicate places. [2025-02-08 08:35:02,315 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 66 transitions, 334 flow [2025-02-08 08:35:02,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:02,315 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:02,315 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 08:35:02,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:35:02,315 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:02,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash -678592009, now seen corresponding path program 1 times [2025-02-08 08:35:02,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:02,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671469396] [2025-02-08 08:35:02,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:02,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:02,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:02,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:02,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:02,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:02,395 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 08:35:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671469396] [2025-02-08 08:35:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671469396] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:02,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:02,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:02,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063059007] [2025-02-08 08:35:02,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:02,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:02,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:02,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:02,402 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:02,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 66 transitions, 334 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 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 08:35:02,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:02,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:02,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:02,945 INFO L124 PetriNetUnfolderBase]: 4532/6965 cut-off events. [2025-02-08 08:35:02,945 INFO L125 PetriNetUnfolderBase]: For 10428/10961 co-relation queries the response was YES. [2025-02-08 08:35:02,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18873 conditions, 6965 events. 4532/6965 cut-off events. For 10428/10961 co-relation queries the response was YES. Maximal size of possible extension queue 738. Compared 51091 event pairs, 2346 based on Foata normal form. 135/5719 useless extension candidates. Maximal degree in co-relation 13978. Up to 4712 conditions per place. [2025-02-08 08:35:02,970 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 95 selfloop transitions, 3 changer transitions 1/124 dead transitions. [2025-02-08 08:35:02,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 124 transitions, 794 flow [2025-02-08 08:35:02,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:02,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:02,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 189 transitions. [2025-02-08 08:35:02,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-02-08 08:35:02,972 INFO L175 Difference]: Start difference. First operand has 71 places, 66 transitions, 334 flow. Second operand 5 states and 189 transitions. [2025-02-08 08:35:02,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 124 transitions, 794 flow [2025-02-08 08:35:02,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 124 transitions, 736 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:02,980 INFO L231 Difference]: Finished difference. Result has 73 places, 68 transitions, 320 flow [2025-02-08 08:35:02,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=320, PETRI_PLACES=73, PETRI_TRANSITIONS=68} [2025-02-08 08:35:02,981 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 22 predicate places. [2025-02-08 08:35:02,981 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 68 transitions, 320 flow [2025-02-08 08:35:02,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 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 08:35:02,981 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:02,981 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 08:35:02,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:35:02,982 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:02,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:02,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1458560247, now seen corresponding path program 2 times [2025-02-08 08:35:02,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:02,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522803994] [2025-02-08 08:35:02,982 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:02,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:02,989 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:02,992 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:02,993 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:02,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:03,009 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 08:35:03,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:03,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522803994] [2025-02-08 08:35:03,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522803994] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:03,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:03,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:03,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746977049] [2025-02-08 08:35:03,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:03,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:03,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:03,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:03,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:03,013 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:03,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 68 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:03,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:03,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:03,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:03,450 INFO L124 PetriNetUnfolderBase]: 3451/5560 cut-off events. [2025-02-08 08:35:03,450 INFO L125 PetriNetUnfolderBase]: For 8502/9263 co-relation queries the response was YES. [2025-02-08 08:35:03,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15204 conditions, 5560 events. 3451/5560 cut-off events. For 8502/9263 co-relation queries the response was YES. Maximal size of possible extension queue 462. Compared 40262 event pairs, 2461 based on Foata normal form. 302/4881 useless extension candidates. Maximal degree in co-relation 12842. Up to 4291 conditions per place. [2025-02-08 08:35:03,493 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 58 selfloop transitions, 3 changer transitions 6/91 dead transitions. [2025-02-08 08:35:03,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 91 transitions, 566 flow [2025-02-08 08:35:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:03,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:03,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 115 transitions. [2025-02-08 08:35:03,497 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7098765432098766 [2025-02-08 08:35:03,497 INFO L175 Difference]: Start difference. First operand has 73 places, 68 transitions, 320 flow. Second operand 3 states and 115 transitions. [2025-02-08 08:35:03,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 91 transitions, 566 flow [2025-02-08 08:35:03,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 91 transitions, 562 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:03,528 INFO L231 Difference]: Finished difference. Result has 76 places, 70 transitions, 354 flow [2025-02-08 08:35:03,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=354, PETRI_PLACES=76, PETRI_TRANSITIONS=70} [2025-02-08 08:35:03,530 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 25 predicate places. [2025-02-08 08:35:03,530 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 70 transitions, 354 flow [2025-02-08 08:35:03,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:03,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:03,531 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, 1] [2025-02-08 08:35:03,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:35:03,532 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:03,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:03,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1198200812, now seen corresponding path program 1 times [2025-02-08 08:35:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:03,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469408049] [2025-02-08 08:35:03,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:03,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:03,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:03,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:03,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:03,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:03,697 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 08:35:03,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:03,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469408049] [2025-02-08 08:35:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469408049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:03,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:03,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672096736] [2025-02-08 08:35:03,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:03,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:03,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:03,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:03,723 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:03,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 70 transitions, 354 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:03,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:03,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:03,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:04,516 INFO L124 PetriNetUnfolderBase]: 4643/7944 cut-off events. [2025-02-08 08:35:04,517 INFO L125 PetriNetUnfolderBase]: For 12318/13491 co-relation queries the response was YES. [2025-02-08 08:35:04,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20819 conditions, 7944 events. 4643/7944 cut-off events. For 12318/13491 co-relation queries the response was YES. Maximal size of possible extension queue 554. Compared 60474 event pairs, 1255 based on Foata normal form. 481/7411 useless extension candidates. Maximal degree in co-relation 17717. Up to 4747 conditions per place. [2025-02-08 08:35:04,555 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 70 selfloop transitions, 2 changer transitions 23/120 dead transitions. [2025-02-08 08:35:04,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 120 transitions, 795 flow [2025-02-08 08:35:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:04,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 175 transitions. [2025-02-08 08:35:04,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2025-02-08 08:35:04,556 INFO L175 Difference]: Start difference. First operand has 76 places, 70 transitions, 354 flow. Second operand 5 states and 175 transitions. [2025-02-08 08:35:04,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 120 transitions, 795 flow [2025-02-08 08:35:04,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 120 transitions, 772 flow, removed 9 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:04,581 INFO L231 Difference]: Finished difference. Result has 83 places, 72 transitions, 373 flow [2025-02-08 08:35:04,581 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=373, PETRI_PLACES=83, PETRI_TRANSITIONS=72} [2025-02-08 08:35:04,582 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 32 predicate places. [2025-02-08 08:35:04,582 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 72 transitions, 373 flow [2025-02-08 08:35:04,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:04,582 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:04,582 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, 1] [2025-02-08 08:35:04,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:35:04,582 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:04,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:04,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1488771744, now seen corresponding path program 2 times [2025-02-08 08:35:04,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:04,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637774570] [2025-02-08 08:35:04,583 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:04,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:04,590 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:04,594 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:04,595 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:04,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:04,719 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 08:35:04,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:04,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637774570] [2025-02-08 08:35:04,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637774570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:04,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:04,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:04,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479365957] [2025-02-08 08:35:04,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:04,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:04,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:04,722 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:04,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:04,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:04,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 72 transitions, 373 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:04,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:04,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:04,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:05,291 INFO L124 PetriNetUnfolderBase]: 4498/7464 cut-off events. [2025-02-08 08:35:05,292 INFO L125 PetriNetUnfolderBase]: For 12880/14117 co-relation queries the response was YES. [2025-02-08 08:35:05,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21453 conditions, 7464 events. 4498/7464 cut-off events. For 12880/14117 co-relation queries the response was YES. Maximal size of possible extension queue 535. Compared 55764 event pairs, 3172 based on Foata normal form. 385/6722 useless extension candidates. Maximal degree in co-relation 21389. Up to 6156 conditions per place. [2025-02-08 08:35:05,321 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 64 selfloop transitions, 3 changer transitions 22/114 dead transitions. [2025-02-08 08:35:05,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 114 transitions, 766 flow [2025-02-08 08:35:05,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:05,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2025-02-08 08:35:05,322 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2025-02-08 08:35:05,322 INFO L175 Difference]: Start difference. First operand has 83 places, 72 transitions, 373 flow. Second operand 5 states and 170 transitions. [2025-02-08 08:35:05,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 114 transitions, 766 flow [2025-02-08 08:35:05,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 114 transitions, 750 flow, removed 6 selfloop flow, removed 3 redundant places. [2025-02-08 08:35:05,360 INFO L231 Difference]: Finished difference. Result has 85 places, 73 transitions, 385 flow [2025-02-08 08:35:05,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=365, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=385, PETRI_PLACES=85, PETRI_TRANSITIONS=73} [2025-02-08 08:35:05,360 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 34 predicate places. [2025-02-08 08:35:05,360 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 73 transitions, 385 flow [2025-02-08 08:35:05,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:05,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:05,360 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, 1] [2025-02-08 08:35:05,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:35:05,361 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:05,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:05,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1486995084, now seen corresponding path program 3 times [2025-02-08 08:35:05,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:05,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438457434] [2025-02-08 08:35:05,361 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:05,367 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:05,371 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:05,371 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:05,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:05,458 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 08:35:05,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:05,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438457434] [2025-02-08 08:35:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438457434] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:05,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755808781] [2025-02-08 08:35:05,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:05,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:05,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:05,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:05,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:05,473 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:05,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 73 transitions, 385 flow. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:05,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:05,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:05,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:06,214 INFO L124 PetriNetUnfolderBase]: 5093/8750 cut-off events. [2025-02-08 08:35:06,214 INFO L125 PetriNetUnfolderBase]: For 14633/16026 co-relation queries the response was YES. [2025-02-08 08:35:06,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25257 conditions, 8750 events. 5093/8750 cut-off events. For 14633/16026 co-relation queries the response was YES. Maximal size of possible extension queue 624. Compared 69001 event pairs, 2466 based on Foata normal form. 498/7934 useless extension candidates. Maximal degree in co-relation 25205. Up to 5688 conditions per place. [2025-02-08 08:35:06,245 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 75 selfloop transitions, 8 changer transitions 29/136 dead transitions. [2025-02-08 08:35:06,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 136 transitions, 933 flow [2025-02-08 08:35:06,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:06,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 182 transitions. [2025-02-08 08:35:06,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.674074074074074 [2025-02-08 08:35:06,246 INFO L175 Difference]: Start difference. First operand has 85 places, 73 transitions, 385 flow. Second operand 5 states and 182 transitions. [2025-02-08 08:35:06,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 136 transitions, 933 flow [2025-02-08 08:35:06,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 136 transitions, 925 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:06,283 INFO L231 Difference]: Finished difference. Result has 89 places, 72 transitions, 380 flow [2025-02-08 08:35:06,284 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=380, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2025-02-08 08:35:06,284 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 38 predicate places. [2025-02-08 08:35:06,284 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 380 flow [2025-02-08 08:35:06,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:06,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:06,285 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, 1] [2025-02-08 08:35:06,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:35:06,285 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:06,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:06,285 INFO L85 PathProgramCache]: Analyzing trace with hash 109463256, now seen corresponding path program 1 times [2025-02-08 08:35:06,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:06,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873672123] [2025-02-08 08:35:06,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:06,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:06,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:06,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:06,294 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:06,294 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:06,369 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 08:35:06,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:06,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873672123] [2025-02-08 08:35:06,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873672123] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:06,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:06,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:06,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522229630] [2025-02-08 08:35:06,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:06,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:06,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:06,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:06,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:06,377 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 54 [2025-02-08 08:35:06,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 380 flow. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 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 08:35:06,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:06,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 54 [2025-02-08 08:35:06,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:06,803 INFO L124 PetriNetUnfolderBase]: 3917/6554 cut-off events. [2025-02-08 08:35:06,803 INFO L125 PetriNetUnfolderBase]: For 13048/13871 co-relation queries the response was YES. [2025-02-08 08:35:06,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20414 conditions, 6554 events. 3917/6554 cut-off events. For 13048/13871 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 50163 event pairs, 1770 based on Foata normal form. 200/5491 useless extension candidates. Maximal degree in co-relation 20355. Up to 3703 conditions per place. [2025-02-08 08:35:06,826 INFO L140 encePairwiseOnDemand]: 49/54 looper letters, 83 selfloop transitions, 9 changer transitions 5/128 dead transitions. [2025-02-08 08:35:06,826 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 128 transitions, 816 flow [2025-02-08 08:35:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:06,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:06,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 212 transitions. [2025-02-08 08:35:06,827 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.654320987654321 [2025-02-08 08:35:06,827 INFO L175 Difference]: Start difference. First operand has 89 places, 72 transitions, 380 flow. Second operand 6 states and 212 transitions. [2025-02-08 08:35:06,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 128 transitions, 816 flow [2025-02-08 08:35:06,851 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 128 transitions, 786 flow, removed 15 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:06,852 INFO L231 Difference]: Finished difference. Result has 86 places, 74 transitions, 399 flow [2025-02-08 08:35:06,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=86, PETRI_TRANSITIONS=74} [2025-02-08 08:35:06,852 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 35 predicate places. [2025-02-08 08:35:06,853 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 74 transitions, 399 flow [2025-02-08 08:35:06,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 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 08:35:06,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:06,853 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, 1] [2025-02-08 08:35:06,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:35:06,853 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:06,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash -148774912, now seen corresponding path program 2 times [2025-02-08 08:35:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:06,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154080884] [2025-02-08 08:35:06,853 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:06,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:06,859 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:06,863 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:06,863 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:06,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:06,914 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 08:35:06,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:06,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154080884] [2025-02-08 08:35:06,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154080884] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:06,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:06,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328837741] [2025-02-08 08:35:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:06,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:06,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:06,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:06,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:06,919 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:06,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 74 transitions, 399 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:06,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:06,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:06,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:07,570 INFO L124 PetriNetUnfolderBase]: 5786/10199 cut-off events. [2025-02-08 08:35:07,570 INFO L125 PetriNetUnfolderBase]: For 21245/22529 co-relation queries the response was YES. [2025-02-08 08:35:07,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31081 conditions, 10199 events. 5786/10199 cut-off events. For 21245/22529 co-relation queries the response was YES. Maximal size of possible extension queue 704. Compared 82916 event pairs, 1018 based on Foata normal form. 346/9531 useless extension candidates. Maximal degree in co-relation 30687. Up to 3405 conditions per place. [2025-02-08 08:35:07,616 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 96 selfloop transitions, 22 changer transitions 6/149 dead transitions. [2025-02-08 08:35:07,617 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 149 transitions, 1041 flow [2025-02-08 08:35:07,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:07,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 205 transitions. [2025-02-08 08:35:07,618 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6327160493827161 [2025-02-08 08:35:07,618 INFO L175 Difference]: Start difference. First operand has 86 places, 74 transitions, 399 flow. Second operand 6 states and 205 transitions. [2025-02-08 08:35:07,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 149 transitions, 1041 flow [2025-02-08 08:35:07,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 149 transitions, 1032 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:07,686 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 586 flow [2025-02-08 08:35:07,686 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=586, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2025-02-08 08:35:07,687 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 41 predicate places. [2025-02-08 08:35:07,687 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 586 flow [2025-02-08 08:35:07,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:07,687 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:07,687 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, 1] [2025-02-08 08:35:07,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:35:07,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:07,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:07,687 INFO L85 PathProgramCache]: Analyzing trace with hash -824090948, now seen corresponding path program 3 times [2025-02-08 08:35:07,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:07,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146151206] [2025-02-08 08:35:07,688 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:07,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:07,694 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 25 statements into 1 equivalence classes. [2025-02-08 08:35:07,697 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-08 08:35:07,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:07,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:07,766 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 08:35:07,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:07,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146151206] [2025-02-08 08:35:07,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146151206] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:07,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:07,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:07,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418714641] [2025-02-08 08:35:07,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:07,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:07,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:07,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:07,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:07,772 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:07,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 586 flow. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:07,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:07,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:07,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:08,270 INFO L124 PetriNetUnfolderBase]: 3659/6429 cut-off events. [2025-02-08 08:35:08,271 INFO L125 PetriNetUnfolderBase]: For 20402/21838 co-relation queries the response was YES. [2025-02-08 08:35:08,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21787 conditions, 6429 events. 3659/6429 cut-off events. For 20402/21838 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 48762 event pairs, 1285 based on Foata normal form. 470/6201 useless extension candidates. Maximal degree in co-relation 21386. Up to 2631 conditions per place. [2025-02-08 08:35:08,304 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 81 selfloop transitions, 12 changer transitions 25/142 dead transitions. [2025-02-08 08:35:08,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 142 transitions, 1108 flow [2025-02-08 08:35:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:08,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:08,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 203 transitions. [2025-02-08 08:35:08,305 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6265432098765432 [2025-02-08 08:35:08,305 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 586 flow. Second operand 6 states and 203 transitions. [2025-02-08 08:35:08,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 142 transitions, 1108 flow [2025-02-08 08:35:08,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 142 transitions, 1080 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:08,356 INFO L231 Difference]: Finished difference. Result has 97 places, 86 transitions, 609 flow [2025-02-08 08:35:08,356 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=609, PETRI_PLACES=97, PETRI_TRANSITIONS=86} [2025-02-08 08:35:08,357 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 46 predicate places. [2025-02-08 08:35:08,357 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 86 transitions, 609 flow [2025-02-08 08:35:08,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:08,357 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:08,357 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, 1, 1, 1] [2025-02-08 08:35:08,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:35:08,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:08,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1573446877, now seen corresponding path program 1 times [2025-02-08 08:35:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:08,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067582852] [2025-02-08 08:35:08,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:08,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:08,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 08:35:08,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 08:35:08,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:08,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,414 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 08:35:08,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067582852] [2025-02-08 08:35:08,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067582852] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:08,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41330430] [2025-02-08 08:35:08,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:08,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:08,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:08,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:08,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 86 transitions, 609 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 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 08:35:08,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:08,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:08,878 INFO L124 PetriNetUnfolderBase]: 3839/6481 cut-off events. [2025-02-08 08:35:08,879 INFO L125 PetriNetUnfolderBase]: For 23443/24253 co-relation queries the response was YES. [2025-02-08 08:35:08,893 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23305 conditions, 6481 events. 3839/6481 cut-off events. For 23443/24253 co-relation queries the response was YES. Maximal size of possible extension queue 523. Compared 49081 event pairs, 1805 based on Foata normal form. 280/5688 useless extension candidates. Maximal degree in co-relation 22795. Up to 4142 conditions per place. [2025-02-08 08:35:08,903 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 69 selfloop transitions, 3 changer transitions 77/179 dead transitions. [2025-02-08 08:35:08,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 179 transitions, 1568 flow [2025-02-08 08:35:08,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:08,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 187 transitions. [2025-02-08 08:35:08,905 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6925925925925925 [2025-02-08 08:35:08,905 INFO L175 Difference]: Start difference. First operand has 97 places, 86 transitions, 609 flow. Second operand 5 states and 187 transitions. [2025-02-08 08:35:08,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 179 transitions, 1568 flow [2025-02-08 08:35:08,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 179 transitions, 1547 flow, removed 8 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:08,944 INFO L231 Difference]: Finished difference. Result has 103 places, 80 transitions, 556 flow [2025-02-08 08:35:08,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=556, PETRI_PLACES=103, PETRI_TRANSITIONS=80} [2025-02-08 08:35:08,945 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 52 predicate places. [2025-02-08 08:35:08,945 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 80 transitions, 556 flow [2025-02-08 08:35:08,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 0 states have call successors, (0), 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 08:35:08,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:08,945 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, 1, 1, 1, 1, 1] [2025-02-08 08:35:08,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:35:08,945 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:08,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:08,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1457621678, now seen corresponding path program 1 times [2025-02-08 08:35:08,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:08,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916273490] [2025-02-08 08:35:08,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:08,951 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-02-08 08:35:08,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-02-08 08:35:08,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:08,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,969 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 08:35:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916273490] [2025-02-08 08:35:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916273490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:08,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326145699] [2025-02-08 08:35:08,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:08,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:08,973 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:08,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 80 transitions, 556 flow. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:08,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:08,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,174 INFO L124 PetriNetUnfolderBase]: 2002/3660 cut-off events. [2025-02-08 08:35:09,174 INFO L125 PetriNetUnfolderBase]: For 13882/14353 co-relation queries the response was YES. [2025-02-08 08:35:09,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12173 conditions, 3660 events. 2002/3660 cut-off events. For 13882/14353 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26178 event pairs, 798 based on Foata normal form. 297/3405 useless extension candidates. Maximal degree in co-relation 12144. Up to 2846 conditions per place. [2025-02-08 08:35:09,189 INFO L140 encePairwiseOnDemand]: 50/54 looper letters, 53 selfloop transitions, 2 changer transitions 2/82 dead transitions. [2025-02-08 08:35:09,190 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 82 transitions, 603 flow [2025-02-08 08:35:09,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2025-02-08 08:35:09,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2025-02-08 08:35:09,191 INFO L175 Difference]: Start difference. First operand has 103 places, 80 transitions, 556 flow. Second operand 3 states and 105 transitions. [2025-02-08 08:35:09,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 82 transitions, 603 flow [2025-02-08 08:35:09,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 82 transitions, 567 flow, removed 5 selfloop flow, removed 9 redundant places. [2025-02-08 08:35:09,209 INFO L231 Difference]: Finished difference. Result has 91 places, 70 transitions, 416 flow [2025-02-08 08:35:09,209 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=91, PETRI_TRANSITIONS=70} [2025-02-08 08:35:09,209 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 40 predicate places. [2025-02-08 08:35:09,209 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 70 transitions, 416 flow [2025-02-08 08:35:09,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:09,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:09,210 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:09,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 08:35:09,210 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:09,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash 328851476, now seen corresponding path program 1 times [2025-02-08 08:35:09,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:09,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539291458] [2025-02-08 08:35:09,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:09,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:09,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 08:35:09,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 08:35:09,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:09,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:09,310 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 08:35:09,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:09,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539291458] [2025-02-08 08:35:09,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539291458] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:09,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:09,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:09,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548870933] [2025-02-08 08:35:09,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:09,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:09,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:09,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:09,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:09,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:09,322 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 70 transitions, 416 flow. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 08:35:09,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:09,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:09,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,987 INFO L124 PetriNetUnfolderBase]: 4057/7083 cut-off events. [2025-02-08 08:35:09,988 INFO L125 PetriNetUnfolderBase]: For 19333/19933 co-relation queries the response was YES. [2025-02-08 08:35:10,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22169 conditions, 7083 events. 4057/7083 cut-off events. For 19333/19933 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 56342 event pairs, 869 based on Foata normal form. 245/6188 useless extension candidates. Maximal degree in co-relation 22145. Up to 2035 conditions per place. [2025-02-08 08:35:10,017 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 95 selfloop transitions, 11 changer transitions 90/225 dead transitions. [2025-02-08 08:35:10,017 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 225 transitions, 1611 flow [2025-02-08 08:35:10,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:35:10,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:35:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 348 transitions. [2025-02-08 08:35:10,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2025-02-08 08:35:10,018 INFO L175 Difference]: Start difference. First operand has 91 places, 70 transitions, 416 flow. Second operand 10 states and 348 transitions. [2025-02-08 08:35:10,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 225 transitions, 1611 flow [2025-02-08 08:35:10,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 225 transitions, 1597 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:10,094 INFO L231 Difference]: Finished difference. Result has 104 places, 76 transitions, 487 flow [2025-02-08 08:35:10,095 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=407, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=487, PETRI_PLACES=104, PETRI_TRANSITIONS=76} [2025-02-08 08:35:10,095 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 53 predicate places. [2025-02-08 08:35:10,095 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 76 transitions, 487 flow [2025-02-08 08:35:10,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 08:35:10,095 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:10,095 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:10,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 08:35:10,096 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:10,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:10,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1869073406, now seen corresponding path program 2 times [2025-02-08 08:35:10,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:10,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338989710] [2025-02-08 08:35:10,096 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:10,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:10,103 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-02-08 08:35:10,106 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 08:35:10,106 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:10,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:10,194 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 08:35:10,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:10,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338989710] [2025-02-08 08:35:10,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338989710] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:10,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:10,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:10,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193612076] [2025-02-08 08:35:10,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:10,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:10,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:10,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:10,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:10,208 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:10,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 76 transitions, 487 flow. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:10,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:10,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:10,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:10,862 INFO L124 PetriNetUnfolderBase]: 4460/8195 cut-off events. [2025-02-08 08:35:10,862 INFO L125 PetriNetUnfolderBase]: For 20478/20908 co-relation queries the response was YES. [2025-02-08 08:35:11,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27442 conditions, 8195 events. 4460/8195 cut-off events. For 20478/20908 co-relation queries the response was YES. Maximal size of possible extension queue 692. Compared 69266 event pairs, 1158 based on Foata normal form. 231/7302 useless extension candidates. Maximal degree in co-relation 27413. Up to 2004 conditions per place. [2025-02-08 08:35:11,014 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 99 selfloop transitions, 12 changer transitions 76/215 dead transitions. [2025-02-08 08:35:11,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 215 transitions, 1620 flow [2025-02-08 08:35:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:11,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:11,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 291 transitions. [2025-02-08 08:35:11,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6736111111111112 [2025-02-08 08:35:11,016 INFO L175 Difference]: Start difference. First operand has 104 places, 76 transitions, 487 flow. Second operand 8 states and 291 transitions. [2025-02-08 08:35:11,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 215 transitions, 1620 flow [2025-02-08 08:35:11,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 215 transitions, 1589 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:11,103 INFO L231 Difference]: Finished difference. Result has 109 places, 77 transitions, 522 flow [2025-02-08 08:35:11,104 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=467, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=522, PETRI_PLACES=109, PETRI_TRANSITIONS=77} [2025-02-08 08:35:11,104 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 58 predicate places. [2025-02-08 08:35:11,104 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 77 transitions, 522 flow [2025-02-08 08:35:11,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:11,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:11,104 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:11,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 08:35:11,105 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:11,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:11,105 INFO L85 PathProgramCache]: Analyzing trace with hash 181049476, now seen corresponding path program 3 times [2025-02-08 08:35:11,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:11,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414774219] [2025-02-08 08:35:11,105 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:11,110 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 33 statements into 1 equivalence classes. [2025-02-08 08:35:11,113 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 08:35:11,113 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:11,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,197 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 08:35:11,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414774219] [2025-02-08 08:35:11,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414774219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:11,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870172191] [2025-02-08 08:35:11,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:11,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:11,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:11,204 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:11,205 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 77 transitions, 522 flow. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:11,205 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,205 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:11,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:11,905 INFO L124 PetriNetUnfolderBase]: 4303/7993 cut-off events. [2025-02-08 08:35:11,905 INFO L125 PetriNetUnfolderBase]: For 24880/25363 co-relation queries the response was YES. [2025-02-08 08:35:11,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27538 conditions, 7993 events. 4303/7993 cut-off events. For 24880/25363 co-relation queries the response was YES. Maximal size of possible extension queue 653. Compared 68397 event pairs, 773 based on Foata normal form. 195/6976 useless extension candidates. Maximal degree in co-relation 27507. Up to 1801 conditions per place. [2025-02-08 08:35:11,941 INFO L140 encePairwiseOnDemand]: 45/54 looper letters, 96 selfloop transitions, 14 changer transitions 101/239 dead transitions. [2025-02-08 08:35:11,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 239 transitions, 1829 flow [2025-02-08 08:35:11,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-08 08:35:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-08 08:35:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 352 transitions. [2025-02-08 08:35:11,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6518518518518519 [2025-02-08 08:35:11,943 INFO L175 Difference]: Start difference. First operand has 109 places, 77 transitions, 522 flow. Second operand 10 states and 352 transitions. [2025-02-08 08:35:11,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 239 transitions, 1829 flow [2025-02-08 08:35:12,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 239 transitions, 1793 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:12,050 INFO L231 Difference]: Finished difference. Result has 117 places, 82 transitions, 619 flow [2025-02-08 08:35:12,050 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=619, PETRI_PLACES=117, PETRI_TRANSITIONS=82} [2025-02-08 08:35:12,050 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 66 predicate places. [2025-02-08 08:35:12,050 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 82 transitions, 619 flow [2025-02-08 08:35:12,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:12,051 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:12,051 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:12,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 08:35:12,051 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:12,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:12,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1747262210, now seen corresponding path program 4 times [2025-02-08 08:35:12,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733400537] [2025-02-08 08:35:12,052 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:12,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:12,057 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 33 statements into 2 equivalence classes. [2025-02-08 08:35:12,060 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 08:35:12,060 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:12,060 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:12,126 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 08:35:12,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:12,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733400537] [2025-02-08 08:35:12,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733400537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:12,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:12,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:12,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579322211] [2025-02-08 08:35:12,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:12,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:12,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:12,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:12,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:12,133 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 54 [2025-02-08 08:35:12,133 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 82 transitions, 619 flow. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:12,133 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:12,133 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 54 [2025-02-08 08:35:12,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:12,847 INFO L124 PetriNetUnfolderBase]: 3155/6016 cut-off events. [2025-02-08 08:35:12,848 INFO L125 PetriNetUnfolderBase]: For 21853/22240 co-relation queries the response was YES. [2025-02-08 08:35:12,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21301 conditions, 6016 events. 3155/6016 cut-off events. For 21853/22240 co-relation queries the response was YES. Maximal size of possible extension queue 481. Compared 49869 event pairs, 439 based on Foata normal form. 126/5235 useless extension candidates. Maximal degree in co-relation 21266. Up to 1463 conditions per place. [2025-02-08 08:35:12,881 INFO L140 encePairwiseOnDemand]: 46/54 looper letters, 95 selfloop transitions, 11 changer transitions 48/182 dead transitions. [2025-02-08 08:35:12,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 182 transitions, 1451 flow [2025-02-08 08:35:12,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 270 transitions. [2025-02-08 08:35:12,883 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-02-08 08:35:12,883 INFO L175 Difference]: Start difference. First operand has 117 places, 82 transitions, 619 flow. Second operand 8 states and 270 transitions. [2025-02-08 08:35:12,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 182 transitions, 1451 flow [2025-02-08 08:35:12,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 182 transitions, 1399 flow, removed 22 selfloop flow, removed 4 redundant places. [2025-02-08 08:35:12,962 INFO L231 Difference]: Finished difference. Result has 118 places, 82 transitions, 601 flow [2025-02-08 08:35:12,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=569, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=601, PETRI_PLACES=118, PETRI_TRANSITIONS=82} [2025-02-08 08:35:12,963 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 67 predicate places. [2025-02-08 08:35:12,963 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 82 transitions, 601 flow [2025-02-08 08:35:12,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 7 states have internal predecessors, (159), 0 states have call successors, (0), 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 08:35:12,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:12,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:12,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 08:35:12,964 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:12,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash -862887060, now seen corresponding path program 5 times [2025-02-08 08:35:12,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:12,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106234545] [2025-02-08 08:35:12,964 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:12,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:12,970 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-02-08 08:35:12,974 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 08:35:12,974 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:12,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:13,074 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 08:35:13,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:13,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106234545] [2025-02-08 08:35:13,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106234545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:13,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:13,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:13,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990716004] [2025-02-08 08:35:13,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:13,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:13,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:13,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:13,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:13,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:13,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 82 transitions, 601 flow. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 08:35:13,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:13,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:13,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:13,778 INFO L124 PetriNetUnfolderBase]: 2778/5356 cut-off events. [2025-02-08 08:35:13,778 INFO L125 PetriNetUnfolderBase]: For 21597/22004 co-relation queries the response was YES. [2025-02-08 08:35:13,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18867 conditions, 5356 events. 2778/5356 cut-off events. For 21597/22004 co-relation queries the response was YES. Maximal size of possible extension queue 420. Compared 44553 event pairs, 680 based on Foata normal form. 137/4621 useless extension candidates. Maximal degree in co-relation 18833. Up to 1682 conditions per place. [2025-02-08 08:35:13,810 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 85 selfloop transitions, 9 changer transitions 56/183 dead transitions. [2025-02-08 08:35:13,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 183 transitions, 1452 flow [2025-02-08 08:35:13,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:13,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 245 transitions. [2025-02-08 08:35:13,811 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2025-02-08 08:35:13,812 INFO L175 Difference]: Start difference. First operand has 118 places, 82 transitions, 601 flow. Second operand 7 states and 245 transitions. [2025-02-08 08:35:13,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 183 transitions, 1452 flow [2025-02-08 08:35:13,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 183 transitions, 1421 flow, removed 6 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:13,880 INFO L231 Difference]: Finished difference. Result has 118 places, 79 transitions, 556 flow [2025-02-08 08:35:13,880 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=571, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=556, PETRI_PLACES=118, PETRI_TRANSITIONS=79} [2025-02-08 08:35:13,880 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 67 predicate places. [2025-02-08 08:35:13,880 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 79 transitions, 556 flow [2025-02-08 08:35:13,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 0 states have call successors, (0), 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 08:35:13,881 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:13,881 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:13,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 08:35:13,881 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:13,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:13,881 INFO L85 PathProgramCache]: Analyzing trace with hash -220070674, now seen corresponding path program 1 times [2025-02-08 08:35:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:13,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679867858] [2025-02-08 08:35:13,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:13,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:13,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-08 08:35:13,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-08 08:35:13,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:13,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:13,944 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 08:35:13,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:13,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679867858] [2025-02-08 08:35:13,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679867858] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:13,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:13,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169750387] [2025-02-08 08:35:13,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:13,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:13,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:13,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:13,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:13,948 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 54 [2025-02-08 08:35:13,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 79 transitions, 556 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 08:35:13,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:13,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 54 [2025-02-08 08:35:13,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:14,396 INFO L124 PetriNetUnfolderBase]: 2857/5243 cut-off events. [2025-02-08 08:35:14,397 INFO L125 PetriNetUnfolderBase]: For 22696/23374 co-relation queries the response was YES. [2025-02-08 08:35:14,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17505 conditions, 5243 events. 2857/5243 cut-off events. For 22696/23374 co-relation queries the response was YES. Maximal size of possible extension queue 410. Compared 41139 event pairs, 681 based on Foata normal form. 131/4501 useless extension candidates. Maximal degree in co-relation 17472. Up to 1415 conditions per place. [2025-02-08 08:35:14,417 INFO L140 encePairwiseOnDemand]: 48/54 looper letters, 0 selfloop transitions, 0 changer transitions 148/148 dead transitions. [2025-02-08 08:35:14,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 148 transitions, 1230 flow [2025-02-08 08:35:14,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:14,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:14,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 260 transitions. [2025-02-08 08:35:14,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6018518518518519 [2025-02-08 08:35:14,418 INFO L175 Difference]: Start difference. First operand has 118 places, 79 transitions, 556 flow. Second operand 8 states and 260 transitions. [2025-02-08 08:35:14,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 148 transitions, 1230 flow [2025-02-08 08:35:14,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 148 transitions, 1091 flow, removed 3 selfloop flow, removed 12 redundant places. [2025-02-08 08:35:14,456 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2025-02-08 08:35:14,456 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=54, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2025-02-08 08:35:14,456 INFO L279 CegarLoopForPetriNet]: 51 programPoint places, 57 predicate places. [2025-02-08 08:35:14,456 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2025-02-08 08:35:14,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 08:35:14,458 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:35:14,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:35:14,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:35:14,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:35:14,459 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:35:14,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 08:35:14,459 INFO L422 BasicCegarLoop]: Path program histogram: [5, 3, 3, 3, 2, 1, 1, 1, 1] [2025-02-08 08:35:14,461 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:35:14,461 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:35:14,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:35:14 BasicIcfg [2025-02-08 08:35:14,464 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:35:14,464 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:35:14,465 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:35:14,465 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:35:14,465 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:58" (3/4) ... [2025-02-08 08:35:14,467 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:35:14,468 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 08:35:14,469 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 08:35:14,469 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 08:35:14,471 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2025-02-08 08:35:14,471 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2025-02-08 08:35:14,472 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2025-02-08 08:35:14,472 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:35:14,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:35:14,523 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:35:14,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:35:14,523 INFO L158 Benchmark]: Toolchain (without parser) took 16900.65ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 113.3MB in the beginning and 657.2MB in the end (delta: -543.8MB). Peak memory consumption was 951.8MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,523 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.17ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 101.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.16ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: Boogie Preprocessor took 25.98ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: IcfgBuilder took 746.53ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 47.8MB in the end (delta: 49.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: TraceAbstraction took 15849.12ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 47.4MB in the beginning and 665.6MB in the end (delta: -618.2MB). Peak memory consumption was 876.3MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,524 INFO L158 Benchmark]: Witness Printer took 58.21ms. Allocated memory is still 1.6GB. Free memory was 665.6MB in the beginning and 657.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:35:14,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.17ms. Allocated memory is still 142.6MB. Free memory was 113.3MB in the beginning and 101.4MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.16ms. Allocated memory is still 142.6MB. Free memory was 101.4MB in the beginning and 99.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.98ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 746.53ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 47.8MB in the end (delta: 49.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15849.12ms. Allocated memory was 142.6MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 47.4MB in the beginning and 665.6MB in the end (delta: -618.2MB). Peak memory consumption was 876.3MB. Max. memory is 16.1GB. * Witness Printer took 58.21ms. Allocated memory is still 1.6GB. Free memory was 665.6MB in the beginning and 657.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 61]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.7s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1401 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1350 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 69 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4375 IncrementalHoareTripleChecker+Invalid, 4444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 69 mSolverCounterUnsat, 40 mSDtfsCounter, 4375 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=619occurred in iteration=17, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 537 NumberOfCodeBlocks, 537 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 517 ConstructedInterpolants, 0 QuantifiedInterpolants, 1872 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:35:14,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE