./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/chl-exp-term-subst.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-exp-term-subst.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 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:34:44,216 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:34:44,253 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:34:44,257 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:34:44,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:34:44,272 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:34:44,273 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:34:44,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:34:44,273 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:34:44,273 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:34:44,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:34:44,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:34:44,274 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:34:44,274 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:34:44,274 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:34:44,275 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:34:44,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:44,276 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:34:44,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:34:44,276 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 -> 2a508120cc7913f10b79dda7ca65a8b88f829725798d520aee5d1c1d04a1fc13 [2025-02-08 08:34:44,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:34:44,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:34:44,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:34:44,443 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:34:44,443 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:34:44,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2025-02-08 08:34:45,593 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94d9ffa5d/e7cf9c2c2d504d43aaf97428cd5e24ea/FLAGbfb3f3568 [2025-02-08 08:34:45,870 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:34:45,871 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-exp-term-subst.wvr.c [2025-02-08 08:34:45,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94d9ffa5d/e7cf9c2c2d504d43aaf97428cd5e24ea/FLAGbfb3f3568 [2025-02-08 08:34:45,926 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/94d9ffa5d/e7cf9c2c2d504d43aaf97428cd5e24ea [2025-02-08 08:34:45,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:34:45,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:34:45,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:45,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:34:45,935 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:34:45,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:45" (1/1) ... [2025-02-08 08:34:45,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d750f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:45, skipping insertion in model container [2025-02-08 08:34:45,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:34:45" (1/1) ... [2025-02-08 08:34:45,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:34:46,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:46,092 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:34:46,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:34:46,129 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:34:46,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46 WrapperNode [2025-02-08 08:34:46,130 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:34:46,131 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:46,131 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:34:46,131 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:34:46,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,157 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 171 [2025-02-08 08:34:46,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:34:46,158 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:34:46,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:34:46,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:34:46,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,165 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,183 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 08:34:46,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,191 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:34:46,199 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:34:46,199 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:34:46,199 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:34:46,203 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (1/1) ... [2025-02-08 08:34:46,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:34:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:34:46,237 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 08:34:46,240 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 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:34:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:34:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:34:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:34:46,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:34:46,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:34:46,261 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 08:34:46,336 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:34:46,338 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:34:46,423 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-7: #t~ite2#1 := #t~ret1#1; [2025-02-08 08:34:46,424 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 08:34:46,424 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:46,424 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-10: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:46,424 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L44-11: #t~ret1#1 := minus_#res#1; [2025-02-08 08:34:46,471 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-7: #t~ite6#1 := #t~ret5#1; [2025-02-08 08:34:46,472 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret5#1 && #t~ret5#1 <= 2147483647; [2025-02-08 08:34:46,472 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:46,472 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-10: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:46,472 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L50-11: #t~ret5#1 := minus_#res#1; [2025-02-08 08:34:46,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-7: #t~ite10#1 := #t~ret9#1; [2025-02-08 08:34:46,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-8: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret9#1 && #t~ret9#1 <= 2147483647; [2025-02-08 08:34:46,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-9: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:34:46,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-10: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:34:46,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L56-11: #t~ret9#1 := minus_#res#1; [2025-02-08 08:34:46,616 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:34:46,616 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:34:46,766 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:34:46,766 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:34:46,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:46 BoogieIcfgContainer [2025-02-08 08:34:46,766 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:34:46,768 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:34:46,768 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:34:46,772 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:34:46,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:34:45" (1/3) ... [2025-02-08 08:34:46,772 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee7e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:46, skipping insertion in model container [2025-02-08 08:34:46,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:34:46" (2/3) ... [2025-02-08 08:34:46,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ee7e97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:34:46, skipping insertion in model container [2025-02-08 08:34:46,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:34:46" (3/3) ... [2025-02-08 08:34:46,774 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-exp-term-subst.wvr.c [2025-02-08 08:34:46,786 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:34:46,787 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-exp-term-subst.wvr.c that has 4 procedures, 40 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:34:46,787 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:34:46,843 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 08:34:46,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 49 places, 45 transitions, 111 flow [2025-02-08 08:34:46,919 INFO L124 PetriNetUnfolderBase]: 6/42 cut-off events. [2025-02-08 08:34:46,921 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:34:46,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 42 events. 6/42 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 89 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2025-02-08 08:34:46,923 INFO L82 GeneralOperation]: Start removeDead. Operand has 49 places, 45 transitions, 111 flow [2025-02-08 08:34:46,925 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 41 transitions, 100 flow [2025-02-08 08:34:46,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:34:46,939 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;@3d68de5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:34:46,939 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:34:46,952 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:34:46,952 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-02-08 08:34:46,952 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:34:46,952 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:46,957 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 08:34:46,957 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 08:34:46,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:46,961 INFO L85 PathProgramCache]: Analyzing trace with hash 313416932, now seen corresponding path program 1 times [2025-02-08 08:34:46,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:46,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640854734] [2025-02-08 08:34:46,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:34:46,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:47,027 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:34:47,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:34:47,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:47,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:47,587 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 08:34:47,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:47,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640854734] [2025-02-08 08:34:47,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640854734] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:47,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:47,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:34:47,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082441019] [2025-02-08 08:34:47,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:47,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:47,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:47,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:47,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:47,618 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 08:34:47,620 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 100 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:47,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:47,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 08:34:47,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:48,069 INFO L124 PetriNetUnfolderBase]: 1468/2161 cut-off events. [2025-02-08 08:34:48,069 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2025-02-08 08:34:48,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4394 conditions, 2161 events. 1468/2161 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 12134 event pairs, 608 based on Foata normal form. 3/1803 useless extension candidates. Maximal degree in co-relation 3966. Up to 1133 conditions per place. [2025-02-08 08:34:48,080 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 82 selfloop transitions, 16 changer transitions 12/121 dead transitions. [2025-02-08 08:34:48,081 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 121 transitions, 522 flow [2025-02-08 08:34:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:34:48,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:34:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 233 transitions. [2025-02-08 08:34:48,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6472222222222223 [2025-02-08 08:34:48,090 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 100 flow. Second operand 8 states and 233 transitions. [2025-02-08 08:34:48,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 121 transitions, 522 flow [2025-02-08 08:34:48,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 121 transitions, 482 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 08:34:48,097 INFO L231 Difference]: Finished difference. Result has 45 places, 51 transitions, 153 flow [2025-02-08 08:34:48,098 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=153, PETRI_PLACES=45, PETRI_TRANSITIONS=51} [2025-02-08 08:34:48,100 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 0 predicate places. [2025-02-08 08:34:48,100 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 51 transitions, 153 flow [2025-02-08 08:34:48,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:48,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:48,101 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:34:48,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:34:48,101 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 08:34:48,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:48,102 INFO L85 PathProgramCache]: Analyzing trace with hash 957001323, now seen corresponding path program 1 times [2025-02-08 08:34:48,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:48,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393375967] [2025-02-08 08:34:48,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:34:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:48,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:48,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:48,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:48,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:48,291 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 08:34:48,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:48,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393375967] [2025-02-08 08:34:48,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393375967] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:48,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:48,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304972358] [2025-02-08 08:34:48,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:48,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:48,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:48,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:48,312 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2025-02-08 08:34:48,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 51 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:48,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:48,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2025-02-08 08:34:48,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:48,771 INFO L124 PetriNetUnfolderBase]: 3017/4697 cut-off events. [2025-02-08 08:34:48,771 INFO L125 PetriNetUnfolderBase]: For 1169/1173 co-relation queries the response was YES. [2025-02-08 08:34:48,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10703 conditions, 4697 events. 3017/4697 cut-off events. For 1169/1173 co-relation queries the response was YES. Maximal size of possible extension queue 441. Compared 30052 event pairs, 506 based on Foata normal form. 29/3961 useless extension candidates. Maximal degree in co-relation 3424. Up to 2133 conditions per place. [2025-02-08 08:34:48,802 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 107 selfloop transitions, 11 changer transitions 14/141 dead transitions. [2025-02-08 08:34:48,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 141 transitions, 697 flow [2025-02-08 08:34:48,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:34:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:34:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 165 transitions. [2025-02-08 08:34:48,804 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7333333333333333 [2025-02-08 08:34:48,804 INFO L175 Difference]: Start difference. First operand has 45 places, 51 transitions, 153 flow. Second operand 5 states and 165 transitions. [2025-02-08 08:34:48,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 141 transitions, 697 flow [2025-02-08 08:34:48,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 141 transitions, 697 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:48,809 INFO L231 Difference]: Finished difference. Result has 52 places, 57 transitions, 236 flow [2025-02-08 08:34:48,809 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=236, PETRI_PLACES=52, PETRI_TRANSITIONS=57} [2025-02-08 08:34:48,810 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 7 predicate places. [2025-02-08 08:34:48,810 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 57 transitions, 236 flow [2025-02-08 08:34:48,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:48,810 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:48,810 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 08:34:48,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:34:48,810 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 08:34:48,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1413844755, now seen corresponding path program 2 times [2025-02-08 08:34:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:48,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919347661] [2025-02-08 08:34:48,811 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:34:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:48,820 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:48,832 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:48,832 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:34:48,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:48,973 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 08:34:48,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:48,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919347661] [2025-02-08 08:34:48,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919347661] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:48,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:48,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:48,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942994375] [2025-02-08 08:34:48,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:48,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:48,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:48,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:48,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:48,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:48,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 57 transitions, 236 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:48,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:48,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:48,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:49,411 INFO L124 PetriNetUnfolderBase]: 3961/6528 cut-off events. [2025-02-08 08:34:49,411 INFO L125 PetriNetUnfolderBase]: For 5066/5069 co-relation queries the response was YES. [2025-02-08 08:34:49,418 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18172 conditions, 6528 events. 3961/6528 cut-off events. For 5066/5069 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 45827 event pairs, 731 based on Foata normal form. 222/6733 useless extension candidates. Maximal degree in co-relation 6230. Up to 3223 conditions per place. [2025-02-08 08:34:49,437 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 121 selfloop transitions, 18 changer transitions 2/148 dead transitions. [2025-02-08 08:34:49,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 148 transitions, 905 flow [2025-02-08 08:34:49,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:34:49,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:34:49,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-02-08 08:34:49,439 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6622222222222223 [2025-02-08 08:34:49,439 INFO L175 Difference]: Start difference. First operand has 52 places, 57 transitions, 236 flow. Second operand 5 states and 149 transitions. [2025-02-08 08:34:49,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 148 transitions, 905 flow [2025-02-08 08:34:49,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 148 transitions, 905 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:49,448 INFO L231 Difference]: Finished difference. Result has 58 places, 74 transitions, 447 flow [2025-02-08 08:34:49,448 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=447, PETRI_PLACES=58, PETRI_TRANSITIONS=74} [2025-02-08 08:34:49,449 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 13 predicate places. [2025-02-08 08:34:49,449 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 74 transitions, 447 flow [2025-02-08 08:34:49,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:49,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:49,449 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 08:34:49,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:34:49,449 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 08:34:49,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash -75071585, now seen corresponding path program 1 times [2025-02-08 08:34:49,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:49,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991993365] [2025-02-08 08:34:49,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:34:49,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:49,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:49,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:49,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:49,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:49,566 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 08:34:49,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:49,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991993365] [2025-02-08 08:34:49,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991993365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:49,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:49,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:49,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351819484] [2025-02-08 08:34:49,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:49,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:49,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:49,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:49,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:49,578 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:34:49,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 74 transitions, 447 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:49,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:49,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:34:49,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:50,239 INFO L124 PetriNetUnfolderBase]: 4906/8458 cut-off events. [2025-02-08 08:34:50,239 INFO L125 PetriNetUnfolderBase]: For 13801/13869 co-relation queries the response was YES. [2025-02-08 08:34:50,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27335 conditions, 8458 events. 4906/8458 cut-off events. For 13801/13869 co-relation queries the response was YES. Maximal size of possible extension queue 696. Compared 65784 event pairs, 1196 based on Foata normal form. 225/8639 useless extension candidates. Maximal degree in co-relation 8906. Up to 1985 conditions per place. [2025-02-08 08:34:50,275 INFO L140 encePairwiseOnDemand]: 30/45 looper letters, 175 selfloop transitions, 33 changer transitions 30/248 dead transitions. [2025-02-08 08:34:50,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 248 transitions, 2006 flow [2025-02-08 08:34:50,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:34:50,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:34:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2025-02-08 08:34:50,276 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6793650793650794 [2025-02-08 08:34:50,276 INFO L175 Difference]: Start difference. First operand has 58 places, 74 transitions, 447 flow. Second operand 7 states and 214 transitions. [2025-02-08 08:34:50,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 248 transitions, 2006 flow [2025-02-08 08:34:50,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 248 transitions, 2006 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:50,285 INFO L231 Difference]: Finished difference. Result has 70 places, 101 transitions, 857 flow [2025-02-08 08:34:50,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=857, PETRI_PLACES=70, PETRI_TRANSITIONS=101} [2025-02-08 08:34:50,285 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 25 predicate places. [2025-02-08 08:34:50,285 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 101 transitions, 857 flow [2025-02-08 08:34:50,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:50,286 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:50,286 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 08:34:50,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:34:50,286 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 08:34:50,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:50,286 INFO L85 PathProgramCache]: Analyzing trace with hash -701732779, now seen corresponding path program 3 times [2025-02-08 08:34:50,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:50,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617065453] [2025-02-08 08:34:50,286 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:34:50,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:50,292 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:50,298 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:50,299 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:34:50,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:50,691 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 08:34:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:50,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617065453] [2025-02-08 08:34:50,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617065453] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:50,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:50,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088176800] [2025-02-08 08:34:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:50,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:50,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:50,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:50,715 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:50,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 101 transitions, 857 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:50,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:50,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:50,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:51,594 INFO L124 PetriNetUnfolderBase]: 5527/9620 cut-off events. [2025-02-08 08:34:51,595 INFO L125 PetriNetUnfolderBase]: For 26627/26628 co-relation queries the response was YES. [2025-02-08 08:34:51,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35280 conditions, 9620 events. 5527/9620 cut-off events. For 26627/26628 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 77202 event pairs, 1009 based on Foata normal form. 11/9593 useless extension candidates. Maximal degree in co-relation 24050. Up to 5468 conditions per place. [2025-02-08 08:34:51,630 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 175 selfloop transitions, 23 changer transitions 9/214 dead transitions. [2025-02-08 08:34:51,630 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 214 transitions, 2108 flow [2025-02-08 08:34:51,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:34:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:34:51,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2025-02-08 08:34:51,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5962962962962963 [2025-02-08 08:34:51,634 INFO L175 Difference]: Start difference. First operand has 70 places, 101 transitions, 857 flow. Second operand 6 states and 161 transitions. [2025-02-08 08:34:51,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 214 transitions, 2108 flow [2025-02-08 08:34:51,650 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 214 transitions, 2106 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:51,653 INFO L231 Difference]: Finished difference. Result has 78 places, 113 transitions, 1111 flow [2025-02-08 08:34:51,653 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1111, PETRI_PLACES=78, PETRI_TRANSITIONS=113} [2025-02-08 08:34:51,653 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 33 predicate places. [2025-02-08 08:34:51,653 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 113 transitions, 1111 flow [2025-02-08 08:34:51,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:51,654 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:51,654 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 08:34:51,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:34:51,654 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 08:34:51,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:51,654 INFO L85 PathProgramCache]: Analyzing trace with hash -618553981, now seen corresponding path program 4 times [2025-02-08 08:34:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:51,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402795315] [2025-02-08 08:34:51,654 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:34:51,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:51,663 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 23 statements into 2 equivalence classes. [2025-02-08 08:34:51,669 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:51,670 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:34:51,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:51,862 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 08:34:51,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402795315] [2025-02-08 08:34:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402795315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:51,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:51,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:51,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174889873] [2025-02-08 08:34:51,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:51,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:51,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:51,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:51,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:51,873 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:34:51,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 113 transitions, 1111 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:51,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:51,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:34:51,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:52,511 INFO L124 PetriNetUnfolderBase]: 4988/8753 cut-off events. [2025-02-08 08:34:52,512 INFO L125 PetriNetUnfolderBase]: For 37721/38368 co-relation queries the response was YES. [2025-02-08 08:34:52,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33873 conditions, 8753 events. 4988/8753 cut-off events. For 37721/38368 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 70194 event pairs, 1164 based on Foata normal form. 375/9058 useless extension candidates. Maximal degree in co-relation 29754. Up to 3742 conditions per place. [2025-02-08 08:34:52,554 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 172 selfloop transitions, 51 changer transitions 12/244 dead transitions. [2025-02-08 08:34:52,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 244 transitions, 2535 flow [2025-02-08 08:34:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:34:52,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:34:52,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 192 transitions. [2025-02-08 08:34:52,558 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2025-02-08 08:34:52,558 INFO L175 Difference]: Start difference. First operand has 78 places, 113 transitions, 1111 flow. Second operand 6 states and 192 transitions. [2025-02-08 08:34:52,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 244 transitions, 2535 flow [2025-02-08 08:34:52,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 244 transitions, 2512 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:34:52,583 INFO L231 Difference]: Finished difference. Result has 83 places, 134 transitions, 1538 flow [2025-02-08 08:34:52,584 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1034, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1538, PETRI_PLACES=83, PETRI_TRANSITIONS=134} [2025-02-08 08:34:52,586 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 38 predicate places. [2025-02-08 08:34:52,586 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 134 transitions, 1538 flow [2025-02-08 08:34:52,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:52,586 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:52,586 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 08:34:52,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:34:52,586 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 08:34:52,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:52,587 INFO L85 PathProgramCache]: Analyzing trace with hash 455510933, now seen corresponding path program 5 times [2025-02-08 08:34:52,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:52,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488564993] [2025-02-08 08:34:52,587 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:34:52,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:52,594 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:52,609 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:52,609 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:34:52,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:52,740 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 08:34:52,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:52,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488564993] [2025-02-08 08:34:52,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488564993] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:52,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:52,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:52,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837687844] [2025-02-08 08:34:52,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:52,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:52,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:52,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:52,745 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:52,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:52,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 134 transitions, 1538 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:52,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:52,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:52,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:53,566 INFO L124 PetriNetUnfolderBase]: 5254/9291 cut-off events. [2025-02-08 08:34:53,566 INFO L125 PetriNetUnfolderBase]: For 42830/42830 co-relation queries the response was YES. [2025-02-08 08:34:53,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37843 conditions, 9291 events. 5254/9291 cut-off events. For 42830/42830 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 75127 event pairs, 1198 based on Foata normal form. 22/9311 useless extension candidates. Maximal degree in co-relation 33541. Up to 4883 conditions per place. [2025-02-08 08:34:53,609 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 176 selfloop transitions, 43 changer transitions 6/232 dead transitions. [2025-02-08 08:34:53,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 232 transitions, 2789 flow [2025-02-08 08:34:53,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:34:53,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:34:53,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 148 transitions. [2025-02-08 08:34:53,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6577777777777778 [2025-02-08 08:34:53,611 INFO L175 Difference]: Start difference. First operand has 83 places, 134 transitions, 1538 flow. Second operand 5 states and 148 transitions. [2025-02-08 08:34:53,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 232 transitions, 2789 flow [2025-02-08 08:34:53,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 232 transitions, 2761 flow, removed 5 selfloop flow, removed 1 redundant places. [2025-02-08 08:34:53,641 INFO L231 Difference]: Finished difference. Result has 89 places, 149 transitions, 1917 flow [2025-02-08 08:34:53,641 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1496, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1917, PETRI_PLACES=89, PETRI_TRANSITIONS=149} [2025-02-08 08:34:53,642 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 44 predicate places. [2025-02-08 08:34:53,642 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 149 transitions, 1917 flow [2025-02-08 08:34:53,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:53,642 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:53,642 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 08:34:53,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:34:53,642 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 08:34:53,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:53,643 INFO L85 PathProgramCache]: Analyzing trace with hash 552529511, now seen corresponding path program 6 times [2025-02-08 08:34:53,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:53,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890746796] [2025-02-08 08:34:53,643 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:34:53,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:53,649 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:53,664 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:53,664 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:34:53,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:53,905 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 08:34:53,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:53,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890746796] [2025-02-08 08:34:53,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890746796] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:53,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:53,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:53,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411627325] [2025-02-08 08:34:53,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:53,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:34:53,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:53,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:34:53,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:34:53,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:53,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 149 transitions, 1917 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:53,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:53,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:53,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:54,779 INFO L124 PetriNetUnfolderBase]: 5411/9578 cut-off events. [2025-02-08 08:34:54,779 INFO L125 PetriNetUnfolderBase]: For 53310/53322 co-relation queries the response was YES. [2025-02-08 08:34:54,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40690 conditions, 9578 events. 5411/9578 cut-off events. For 53310/53322 co-relation queries the response was YES. Maximal size of possible extension queue 819. Compared 78226 event pairs, 1576 based on Foata normal form. 24/9588 useless extension candidates. Maximal degree in co-relation 36057. Up to 4046 conditions per place. [2025-02-08 08:34:54,817 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 179 selfloop transitions, 58 changer transitions 3/247 dead transitions. [2025-02-08 08:34:54,817 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 247 transitions, 3119 flow [2025-02-08 08:34:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:34:54,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:34:54,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 167 transitions. [2025-02-08 08:34:54,820 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6185185185185185 [2025-02-08 08:34:54,820 INFO L175 Difference]: Start difference. First operand has 89 places, 149 transitions, 1917 flow. Second operand 6 states and 167 transitions. [2025-02-08 08:34:54,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 247 transitions, 3119 flow [2025-02-08 08:34:54,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 247 transitions, 3113 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:34:54,864 INFO L231 Difference]: Finished difference. Result has 96 places, 161 transitions, 2280 flow [2025-02-08 08:34:54,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=1894, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2280, PETRI_PLACES=96, PETRI_TRANSITIONS=161} [2025-02-08 08:34:54,865 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 51 predicate places. [2025-02-08 08:34:54,865 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 161 transitions, 2280 flow [2025-02-08 08:34:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:54,865 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:54,865 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 08:34:54,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:34:54,865 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 08:34:54,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash -589116435, now seen corresponding path program 2 times [2025-02-08 08:34:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:54,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141245475] [2025-02-08 08:34:54,866 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:34:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:54,871 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:54,876 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:54,876 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:34:54,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:55,007 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 08:34:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:55,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141245475] [2025-02-08 08:34:55,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141245475] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:55,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:55,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:55,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014770898] [2025-02-08 08:34:55,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:55,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:55,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:55,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:55,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:55,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:55,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 161 transitions, 2280 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:55,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:55,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:55,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:55,849 INFO L124 PetriNetUnfolderBase]: 6120/11024 cut-off events. [2025-02-08 08:34:55,849 INFO L125 PetriNetUnfolderBase]: For 64414/64426 co-relation queries the response was YES. [2025-02-08 08:34:55,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47385 conditions, 11024 events. 6120/11024 cut-off events. For 64414/64426 co-relation queries the response was YES. Maximal size of possible extension queue 951. Compared 93615 event pairs, 1481 based on Foata normal form. 69/11089 useless extension candidates. Maximal degree in co-relation 41412. Up to 4781 conditions per place. [2025-02-08 08:34:55,901 INFO L140 encePairwiseOnDemand]: 31/45 looper letters, 234 selfloop transitions, 47 changer transitions 4/292 dead transitions. [2025-02-08 08:34:55,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 292 transitions, 4104 flow [2025-02-08 08:34:55,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:34:55,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:34:55,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 157 transitions. [2025-02-08 08:34:55,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6977777777777778 [2025-02-08 08:34:55,903 INFO L175 Difference]: Start difference. First operand has 96 places, 161 transitions, 2280 flow. Second operand 5 states and 157 transitions. [2025-02-08 08:34:55,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 292 transitions, 4104 flow [2025-02-08 08:34:55,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 292 transitions, 4087 flow, removed 8 selfloop flow, removed 1 redundant places. [2025-02-08 08:34:55,971 INFO L231 Difference]: Finished difference. Result has 103 places, 189 transitions, 2918 flow [2025-02-08 08:34:55,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2253, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=2918, PETRI_PLACES=103, PETRI_TRANSITIONS=189} [2025-02-08 08:34:55,972 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 58 predicate places. [2025-02-08 08:34:55,972 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 189 transitions, 2918 flow [2025-02-08 08:34:55,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:55,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:55,972 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 08:34:55,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:34:55,973 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 08:34:55,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:55,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1128584789, now seen corresponding path program 3 times [2025-02-08 08:34:55,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:55,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571875898] [2025-02-08 08:34:55,973 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:34:55,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:55,978 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:55,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:55,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:34:55,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:56,112 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 08:34:56,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:56,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571875898] [2025-02-08 08:34:56,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571875898] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:56,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:56,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:56,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93110637] [2025-02-08 08:34:56,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:56,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:56,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:56,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:56,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:56,129 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:56,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 189 transitions, 2918 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:56,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:56,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:56,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:57,015 INFO L124 PetriNetUnfolderBase]: 6064/10881 cut-off events. [2025-02-08 08:34:57,015 INFO L125 PetriNetUnfolderBase]: For 79785/79806 co-relation queries the response was YES. [2025-02-08 08:34:57,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50049 conditions, 10881 events. 6064/10881 cut-off events. For 79785/79806 co-relation queries the response was YES. Maximal size of possible extension queue 930. Compared 91953 event pairs, 2033 based on Foata normal form. 42/10909 useless extension candidates. Maximal degree in co-relation 43701. Up to 3521 conditions per place. [2025-02-08 08:34:57,077 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 224 selfloop transitions, 57 changer transitions 7/295 dead transitions. [2025-02-08 08:34:57,078 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 295 transitions, 4294 flow [2025-02-08 08:34:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:34:57,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:34:57,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 175 transitions. [2025-02-08 08:34:57,079 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6481481481481481 [2025-02-08 08:34:57,079 INFO L175 Difference]: Start difference. First operand has 103 places, 189 transitions, 2918 flow. Second operand 6 states and 175 transitions. [2025-02-08 08:34:57,079 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 295 transitions, 4294 flow [2025-02-08 08:34:57,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 295 transitions, 4294 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:57,164 INFO L231 Difference]: Finished difference. Result has 112 places, 194 transitions, 3213 flow [2025-02-08 08:34:57,164 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=2896, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3213, PETRI_PLACES=112, PETRI_TRANSITIONS=194} [2025-02-08 08:34:57,164 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 67 predicate places. [2025-02-08 08:34:57,164 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 194 transitions, 3213 flow [2025-02-08 08:34:57,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:57,165 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:57,165 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 08:34:57,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:34:57,165 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 08:34:57,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:57,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1702662291, now seen corresponding path program 4 times [2025-02-08 08:34:57,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:57,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936580262] [2025-02-08 08:34:57,166 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:34:57,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:57,173 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 23 statements into 2 equivalence classes. [2025-02-08 08:34:57,180 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:57,180 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:34:57,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:57,350 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 08:34:57,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:57,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936580262] [2025-02-08 08:34:57,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936580262] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:57,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:57,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:57,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091966569] [2025-02-08 08:34:57,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:57,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:57,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:57,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:57,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:57,399 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2025-02-08 08:34:57,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 194 transitions, 3213 flow. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:57,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:57,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2025-02-08 08:34:57,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:34:58,645 INFO L124 PetriNetUnfolderBase]: 5108/9616 cut-off events. [2025-02-08 08:34:58,645 INFO L125 PetriNetUnfolderBase]: For 85563/87036 co-relation queries the response was YES. [2025-02-08 08:34:58,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43823 conditions, 9616 events. 5108/9616 cut-off events. For 85563/87036 co-relation queries the response was YES. Maximal size of possible extension queue 879. Compared 84898 event pairs, 1457 based on Foata normal form. 522/9891 useless extension candidates. Maximal degree in co-relation 37692. Up to 2528 conditions per place. [2025-02-08 08:34:58,715 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 184 selfloop transitions, 56 changer transitions 8/314 dead transitions. [2025-02-08 08:34:58,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 314 transitions, 4909 flow [2025-02-08 08:34:58,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:34:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:34:58,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 212 transitions. [2025-02-08 08:34:58,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6730158730158731 [2025-02-08 08:34:58,717 INFO L175 Difference]: Start difference. First operand has 112 places, 194 transitions, 3213 flow. Second operand 7 states and 212 transitions. [2025-02-08 08:34:58,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 314 transitions, 4909 flow [2025-02-08 08:34:58,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 314 transitions, 4903 flow, removed 3 selfloop flow, removed 0 redundant places. [2025-02-08 08:34:58,870 INFO L231 Difference]: Finished difference. Result has 124 places, 221 transitions, 3905 flow [2025-02-08 08:34:58,870 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3207, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3905, PETRI_PLACES=124, PETRI_TRANSITIONS=221} [2025-02-08 08:34:58,871 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 79 predicate places. [2025-02-08 08:34:58,871 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 221 transitions, 3905 flow [2025-02-08 08:34:58,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:58,871 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:34:58,871 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 08:34:58,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:34:58,871 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 08:34:58,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:34:58,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1731241625, now seen corresponding path program 7 times [2025-02-08 08:34:58,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:34:58,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071425387] [2025-02-08 08:34:58,872 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:34:58,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:34:58,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:34:58,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:34:58,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:34:58,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:34:58,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:34:58,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:34:58,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071425387] [2025-02-08 08:34:58,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071425387] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:34:58,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:34:58,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:34:58,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842370960] [2025-02-08 08:34:58,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:34:58,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:34:58,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:34:58,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:34:58,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:34:59,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:34:59,004 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 221 transitions, 3905 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:34:59,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:34:59,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:34:59,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:00,237 INFO L124 PetriNetUnfolderBase]: 6171/11039 cut-off events. [2025-02-08 08:35:00,237 INFO L125 PetriNetUnfolderBase]: For 109515/109515 co-relation queries the response was YES. [2025-02-08 08:35:00,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55161 conditions, 11039 events. 6171/11039 cut-off events. For 109515/109515 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 93069 event pairs, 1671 based on Foata normal form. 18/11041 useless extension candidates. Maximal degree in co-relation 49670. Up to 4990 conditions per place. [2025-02-08 08:35:00,319 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 217 selfloop transitions, 76 changer transitions 4/304 dead transitions. [2025-02-08 08:35:00,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 304 transitions, 5248 flow [2025-02-08 08:35:00,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-02-08 08:35:00,321 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6622222222222223 [2025-02-08 08:35:00,321 INFO L175 Difference]: Start difference. First operand has 124 places, 221 transitions, 3905 flow. Second operand 5 states and 149 transitions. [2025-02-08 08:35:00,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 304 transitions, 5248 flow [2025-02-08 08:35:00,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 304 transitions, 5236 flow, removed 6 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:00,730 INFO L231 Difference]: Finished difference. Result has 130 places, 229 transitions, 4312 flow [2025-02-08 08:35:00,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=3895, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=221, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=4312, PETRI_PLACES=130, PETRI_TRANSITIONS=229} [2025-02-08 08:35:00,733 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 85 predicate places. [2025-02-08 08:35:00,733 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 229 transitions, 4312 flow [2025-02-08 08:35:00,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,733 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:00,733 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 08:35:00,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-08 08:35:00,735 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 08:35:00,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:00,735 INFO L85 PathProgramCache]: Analyzing trace with hash 2038185309, now seen corresponding path program 8 times [2025-02-08 08:35:00,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:00,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471908507] [2025-02-08 08:35:00,735 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:00,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:00,746 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:00,749 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:00,749 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:00,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:00,827 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 08:35:00,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:00,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471908507] [2025-02-08 08:35:00,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471908507] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:00,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:00,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:00,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172436465] [2025-02-08 08:35:00,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:00,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:00,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:00,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:00,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:00,840 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2025-02-08 08:35:00,840 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 229 transitions, 4312 flow. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:00,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:00,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2025-02-08 08:35:00,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:01,901 INFO L124 PetriNetUnfolderBase]: 5392/9962 cut-off events. [2025-02-08 08:35:01,901 INFO L125 PetriNetUnfolderBase]: For 120486/121865 co-relation queries the response was YES. [2025-02-08 08:35:01,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50314 conditions, 9962 events. 5392/9962 cut-off events. For 120486/121865 co-relation queries the response was YES. Maximal size of possible extension queue 921. Compared 86447 event pairs, 1713 based on Foata normal form. 401/10099 useless extension candidates. Maximal degree in co-relation 45638. Up to 2998 conditions per place. [2025-02-08 08:35:01,982 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 200 selfloop transitions, 77 changer transitions 5/340 dead transitions. [2025-02-08 08:35:01,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 340 transitions, 6004 flow [2025-02-08 08:35:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:01,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:01,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 204 transitions. [2025-02-08 08:35:01,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6476190476190476 [2025-02-08 08:35:01,984 INFO L175 Difference]: Start difference. First operand has 130 places, 229 transitions, 4312 flow. Second operand 7 states and 204 transitions. [2025-02-08 08:35:01,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 340 transitions, 6004 flow [2025-02-08 08:35:02,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 340 transitions, 5949 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:02,249 INFO L231 Difference]: Finished difference. Result has 138 places, 248 transitions, 4903 flow [2025-02-08 08:35:02,249 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=4267, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4903, PETRI_PLACES=138, PETRI_TRANSITIONS=248} [2025-02-08 08:35:02,250 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 93 predicate places. [2025-02-08 08:35:02,250 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 248 transitions, 4903 flow [2025-02-08 08:35:02,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:02,250 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:02,250 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 08:35:02,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-08 08:35:02,251 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 08:35:02,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:02,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1839190807, now seen corresponding path program 5 times [2025-02-08 08:35:02,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:02,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924252556] [2025-02-08 08:35:02,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:02,256 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:02,260 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:02,261 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:02,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:02,342 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 08:35:02,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:02,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924252556] [2025-02-08 08:35:02,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924252556] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:02,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:02,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653872516] [2025-02-08 08:35:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:02,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:02,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:02,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:02,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:02,354 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:02,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 248 transitions, 4903 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:02,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:02,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:02,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:03,487 INFO L124 PetriNetUnfolderBase]: 6212/11197 cut-off events. [2025-02-08 08:35:03,487 INFO L125 PetriNetUnfolderBase]: For 134519/134519 co-relation queries the response was YES. [2025-02-08 08:35:03,534 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58761 conditions, 11197 events. 6212/11197 cut-off events. For 134519/134519 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 94861 event pairs, 1609 based on Foata normal form. 48/11243 useless extension candidates. Maximal degree in co-relation 53216. Up to 6673 conditions per place. [2025-02-08 08:35:03,569 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 284 selfloop transitions, 47 changer transitions 3/341 dead transitions. [2025-02-08 08:35:03,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 341 transitions, 6593 flow [2025-02-08 08:35:03,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:03,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:03,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2025-02-08 08:35:03,571 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6622222222222223 [2025-02-08 08:35:03,571 INFO L175 Difference]: Start difference. First operand has 138 places, 248 transitions, 4903 flow. Second operand 5 states and 149 transitions. [2025-02-08 08:35:03,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 341 transitions, 6593 flow [2025-02-08 08:35:03,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 341 transitions, 6522 flow, removed 13 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:03,947 INFO L231 Difference]: Finished difference. Result has 144 places, 254 transitions, 5174 flow [2025-02-08 08:35:03,948 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=4858, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=5174, PETRI_PLACES=144, PETRI_TRANSITIONS=254} [2025-02-08 08:35:03,948 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 99 predicate places. [2025-02-08 08:35:03,948 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 254 transitions, 5174 flow [2025-02-08 08:35:03,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:03,948 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:03,948 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:03,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-08 08:35:03,949 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 08:35:03,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:03,949 INFO L85 PathProgramCache]: Analyzing trace with hash -273582091, now seen corresponding path program 9 times [2025-02-08 08:35:03,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:03,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025122055] [2025-02-08 08:35:03,949 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:03,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:03,953 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:03,957 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:03,957 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:03,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:04,025 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 08:35:04,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:04,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025122055] [2025-02-08 08:35:04,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025122055] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:04,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:04,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:04,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283165220] [2025-02-08 08:35:04,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:04,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:04,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:04,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:04,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:04,033 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:04,033 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 254 transitions, 5174 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:04,033 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:04,033 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:04,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:05,319 INFO L124 PetriNetUnfolderBase]: 6195/11133 cut-off events. [2025-02-08 08:35:05,319 INFO L125 PetriNetUnfolderBase]: For 148327/148338 co-relation queries the response was YES. [2025-02-08 08:35:05,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58511 conditions, 11133 events. 6195/11133 cut-off events. For 148327/148338 co-relation queries the response was YES. Maximal size of possible extension queue 956. Compared 93899 event pairs, 1941 based on Foata normal form. 21/11145 useless extension candidates. Maximal degree in co-relation 53074. Up to 4440 conditions per place. [2025-02-08 08:35:05,388 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 290 selfloop transitions, 80 changer transitions 2/379 dead transitions. [2025-02-08 08:35:05,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 379 transitions, 7327 flow [2025-02-08 08:35:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:05,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:05,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2025-02-08 08:35:05,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6555555555555556 [2025-02-08 08:35:05,391 INFO L175 Difference]: Start difference. First operand has 144 places, 254 transitions, 5174 flow. Second operand 6 states and 177 transitions. [2025-02-08 08:35:05,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 379 transitions, 7327 flow [2025-02-08 08:35:05,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 379 transitions, 7317 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:05,784 INFO L231 Difference]: Finished difference. Result has 153 places, 278 transitions, 5964 flow [2025-02-08 08:35:05,785 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=5166, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5964, PETRI_PLACES=153, PETRI_TRANSITIONS=278} [2025-02-08 08:35:05,785 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 108 predicate places. [2025-02-08 08:35:05,785 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 278 transitions, 5964 flow [2025-02-08 08:35:05,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:05,786 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:05,786 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 08:35:05,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-08 08:35:05,786 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 08:35:05,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:05,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1221753485, now seen corresponding path program 6 times [2025-02-08 08:35:05,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:05,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269893726] [2025-02-08 08:35:05,786 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:05,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:05,791 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:05,796 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:05,796 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:05,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:05,857 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 08:35:05,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:05,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269893726] [2025-02-08 08:35:05,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269893726] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:05,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:05,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:05,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438088615] [2025-02-08 08:35:05,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:05,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:05,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:05,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:05,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:05,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:05,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 278 transitions, 5964 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:05,867 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:05,867 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:05,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:07,113 INFO L124 PetriNetUnfolderBase]: 6127/10968 cut-off events. [2025-02-08 08:35:07,114 INFO L125 PetriNetUnfolderBase]: For 165316/165336 co-relation queries the response was YES. [2025-02-08 08:35:07,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60168 conditions, 10968 events. 6127/10968 cut-off events. For 165316/165336 co-relation queries the response was YES. Maximal size of possible extension queue 939. Compared 91904 event pairs, 1871 based on Foata normal form. 39/11003 useless extension candidates. Maximal degree in co-relation 54537. Up to 4040 conditions per place. [2025-02-08 08:35:07,195 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 279 selfloop transitions, 110 changer transitions 5/401 dead transitions. [2025-02-08 08:35:07,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 401 transitions, 7933 flow [2025-02-08 08:35:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:07,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 206 transitions. [2025-02-08 08:35:07,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.653968253968254 [2025-02-08 08:35:07,196 INFO L175 Difference]: Start difference. First operand has 153 places, 278 transitions, 5964 flow. Second operand 7 states and 206 transitions. [2025-02-08 08:35:07,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 401 transitions, 7933 flow [2025-02-08 08:35:07,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 401 transitions, 7911 flow, removed 11 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:07,825 INFO L231 Difference]: Finished difference. Result has 164 places, 293 transitions, 6725 flow [2025-02-08 08:35:07,826 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=5942, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6725, PETRI_PLACES=164, PETRI_TRANSITIONS=293} [2025-02-08 08:35:07,826 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 119 predicate places. [2025-02-08 08:35:07,826 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 293 transitions, 6725 flow [2025-02-08 08:35:07,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:07,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:07,827 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 08:35:07,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-08 08:35:07,827 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 08:35:07,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:07,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1210889349, now seen corresponding path program 10 times [2025-02-08 08:35:07,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:07,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533803151] [2025-02-08 08:35:07,828 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:07,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:07,835 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 23 statements into 2 equivalence classes. [2025-02-08 08:35:07,840 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:07,840 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:07,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:08,003 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 08:35:08,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533803151] [2025-02-08 08:35:08,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533803151] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:08,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:08,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:08,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677251029] [2025-02-08 08:35:08,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:08,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:08,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:08,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:08,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:08,017 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-02-08 08:35:08,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 293 transitions, 6725 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:08,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:08,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-02-08 08:35:08,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:09,927 INFO L124 PetriNetUnfolderBase]: 7945/13581 cut-off events. [2025-02-08 08:35:09,927 INFO L125 PetriNetUnfolderBase]: For 217921/217959 co-relation queries the response was YES. [2025-02-08 08:35:10,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73382 conditions, 13581 events. 7945/13581 cut-off events. For 217921/217959 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 110207 event pairs, 2135 based on Foata normal form. 158/13737 useless extension candidates. Maximal degree in co-relation 67542. Up to 9293 conditions per place. [2025-02-08 08:35:10,079 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 351 selfloop transitions, 61 changer transitions 1/419 dead transitions. [2025-02-08 08:35:10,079 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 419 transitions, 9242 flow [2025-02-08 08:35:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 183 transitions. [2025-02-08 08:35:10,080 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.580952380952381 [2025-02-08 08:35:10,080 INFO L175 Difference]: Start difference. First operand has 164 places, 293 transitions, 6725 flow. Second operand 7 states and 183 transitions. [2025-02-08 08:35:10,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 419 transitions, 9242 flow [2025-02-08 08:35:10,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 419 transitions, 9152 flow, removed 45 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:10,881 INFO L231 Difference]: Finished difference. Result has 174 places, 320 transitions, 7434 flow [2025-02-08 08:35:10,882 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=6671, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7434, PETRI_PLACES=174, PETRI_TRANSITIONS=320} [2025-02-08 08:35:10,884 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 129 predicate places. [2025-02-08 08:35:10,885 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 320 transitions, 7434 flow [2025-02-08 08:35:10,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:10,885 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:10,888 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 08:35:10,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-08 08:35:10,889 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 08:35:10,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1153027655, now seen corresponding path program 7 times [2025-02-08 08:35:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070591667] [2025-02-08 08:35:10,889 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:10,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:10,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:10,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:10,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:10,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:11,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:11,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:11,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070591667] [2025-02-08 08:35:11,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070591667] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:11,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:11,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:11,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815856342] [2025-02-08 08:35:11,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:11,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:11,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:11,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:11,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:11,053 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:11,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 320 transitions, 7434 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:11,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:11,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:11,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:12,580 INFO L124 PetriNetUnfolderBase]: 6107/11002 cut-off events. [2025-02-08 08:35:12,580 INFO L125 PetriNetUnfolderBase]: For 208682/208801 co-relation queries the response was YES. [2025-02-08 08:35:12,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65084 conditions, 11002 events. 6107/11002 cut-off events. For 208682/208801 co-relation queries the response was YES. Maximal size of possible extension queue 966. Compared 92963 event pairs, 1758 based on Foata normal form. 229/11184 useless extension candidates. Maximal degree in co-relation 59768. Up to 5289 conditions per place. [2025-02-08 08:35:12,684 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 325 selfloop transitions, 88 changer transitions 7/428 dead transitions. [2025-02-08 08:35:12,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 428 transitions, 8992 flow [2025-02-08 08:35:12,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:12,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 210 transitions. [2025-02-08 08:35:12,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2025-02-08 08:35:12,686 INFO L175 Difference]: Start difference. First operand has 174 places, 320 transitions, 7434 flow. Second operand 7 states and 210 transitions. [2025-02-08 08:35:12,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 428 transitions, 8992 flow [2025-02-08 08:35:13,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 428 transitions, 8968 flow, removed 6 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:13,608 INFO L231 Difference]: Finished difference. Result has 183 places, 319 transitions, 7560 flow [2025-02-08 08:35:13,608 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7124, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=7560, PETRI_PLACES=183, PETRI_TRANSITIONS=319} [2025-02-08 08:35:13,609 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 138 predicate places. [2025-02-08 08:35:13,609 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 319 transitions, 7560 flow [2025-02-08 08:35:13,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:13,609 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:13,609 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:13,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-08 08:35:13,609 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 08:35:13,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1350334945, now seen corresponding path program 11 times [2025-02-08 08:35:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:13,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202787456] [2025-02-08 08:35:13,610 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:13,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:13,614 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:13,620 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:13,620 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:13,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:13,690 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 08:35:13,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:13,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202787456] [2025-02-08 08:35:13,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202787456] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:13,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:13,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:13,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397095543] [2025-02-08 08:35:13,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:13,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:13,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:13,692 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:13,692 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:13,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2025-02-08 08:35:13,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 319 transitions, 7560 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:13,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:13,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2025-02-08 08:35:13,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:15,128 INFO L124 PetriNetUnfolderBase]: 5384/10061 cut-off events. [2025-02-08 08:35:15,129 INFO L125 PetriNetUnfolderBase]: For 210501/211260 co-relation queries the response was YES. [2025-02-08 08:35:15,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60035 conditions, 10061 events. 5384/10061 cut-off events. For 210501/211260 co-relation queries the response was YES. Maximal size of possible extension queue 943. Compared 87803 event pairs, 1502 based on Foata normal form. 516/10384 useless extension candidates. Maximal degree in co-relation 54967. Up to 3873 conditions per place. [2025-02-08 08:35:15,197 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 282 selfloop transitions, 53 changer transitions 20/401 dead transitions. [2025-02-08 08:35:15,197 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 401 transitions, 9475 flow [2025-02-08 08:35:15,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 146 transitions. [2025-02-08 08:35:15,199 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6488888888888888 [2025-02-08 08:35:15,199 INFO L175 Difference]: Start difference. First operand has 183 places, 319 transitions, 7560 flow. Second operand 5 states and 146 transitions. [2025-02-08 08:35:15,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 401 transitions, 9475 flow [2025-02-08 08:35:15,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 401 transitions, 9398 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:15,838 INFO L231 Difference]: Finished difference. Result has 189 places, 314 transitions, 7456 flow [2025-02-08 08:35:15,838 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7351, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=7456, PETRI_PLACES=189, PETRI_TRANSITIONS=314} [2025-02-08 08:35:15,839 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 144 predicate places. [2025-02-08 08:35:15,839 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 314 transitions, 7456 flow [2025-02-08 08:35:15,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:15,839 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:15,839 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 08:35:15,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-08 08:35:15,839 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 08:35:15,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 975226059, now seen corresponding path program 8 times [2025-02-08 08:35:15,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:15,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127037914] [2025-02-08 08:35:15,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:15,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:15,844 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:15,848 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:15,848 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:15,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:15,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:35:15,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:15,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127037914] [2025-02-08 08:35:15,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127037914] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:15,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:15,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:15,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84388259] [2025-02-08 08:35:15,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:15,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:15,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:15,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:15,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:15,913 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:15,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 314 transitions, 7456 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:15,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:15,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:15,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:17,285 INFO L124 PetriNetUnfolderBase]: 5489/10089 cut-off events. [2025-02-08 08:35:17,285 INFO L125 PetriNetUnfolderBase]: For 206231/206685 co-relation queries the response was YES. [2025-02-08 08:35:17,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61009 conditions, 10089 events. 5489/10089 cut-off events. For 206231/206685 co-relation queries the response was YES. Maximal size of possible extension queue 916. Compared 86636 event pairs, 1246 based on Foata normal form. 350/10311 useless extension candidates. Maximal degree in co-relation 55562. Up to 4596 conditions per place. [2025-02-08 08:35:17,375 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 302 selfloop transitions, 99 changer transitions 6/430 dead transitions. [2025-02-08 08:35:17,375 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 430 transitions, 9759 flow [2025-02-08 08:35:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:17,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:17,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2025-02-08 08:35:17,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662962962962963 [2025-02-08 08:35:17,376 INFO L175 Difference]: Start difference. First operand has 189 places, 314 transitions, 7456 flow. Second operand 6 states and 179 transitions. [2025-02-08 08:35:17,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 430 transitions, 9759 flow [2025-02-08 08:35:18,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 430 transitions, 9731 flow, removed 14 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:18,269 INFO L231 Difference]: Finished difference. Result has 198 places, 332 transitions, 8306 flow [2025-02-08 08:35:18,270 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=7434, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=8306, PETRI_PLACES=198, PETRI_TRANSITIONS=332} [2025-02-08 08:35:18,270 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 153 predicate places. [2025-02-08 08:35:18,270 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 332 transitions, 8306 flow [2025-02-08 08:35:18,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:18,270 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:18,270 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 08:35:18,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-08 08:35:18,271 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:18,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:18,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1472683509, now seen corresponding path program 12 times [2025-02-08 08:35:18,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:18,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486493360] [2025-02-08 08:35:18,271 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:18,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:18,279 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:18,290 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:18,290 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:18,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:18,409 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 08:35:18,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:18,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486493360] [2025-02-08 08:35:18,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486493360] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:18,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:18,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:18,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7709251] [2025-02-08 08:35:18,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:18,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:18,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:18,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:18,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:18,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:18,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 332 transitions, 8306 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:18,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:18,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:18,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:19,862 INFO L124 PetriNetUnfolderBase]: 5106/9373 cut-off events. [2025-02-08 08:35:19,862 INFO L125 PetriNetUnfolderBase]: For 217287/217827 co-relation queries the response was YES. [2025-02-08 08:35:19,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59693 conditions, 9373 events. 5106/9373 cut-off events. For 217287/217827 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 79267 event pairs, 1207 based on Foata normal form. 247/9481 useless extension candidates. Maximal degree in co-relation 56884. Up to 3862 conditions per place. [2025-02-08 08:35:19,985 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 277 selfloop transitions, 111 changer transitions 13/424 dead transitions. [2025-02-08 08:35:19,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 424 transitions, 10265 flow [2025-02-08 08:35:19,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 08:35:19,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 08:35:19,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 179 transitions. [2025-02-08 08:35:19,986 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662962962962963 [2025-02-08 08:35:19,986 INFO L175 Difference]: Start difference. First operand has 198 places, 332 transitions, 8306 flow. Second operand 6 states and 179 transitions. [2025-02-08 08:35:19,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 424 transitions, 10265 flow [2025-02-08 08:35:20,932 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 424 transitions, 10172 flow, removed 12 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:20,939 INFO L231 Difference]: Finished difference. Result has 206 places, 345 transitions, 9046 flow [2025-02-08 08:35:20,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=8189, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9046, PETRI_PLACES=206, PETRI_TRANSITIONS=345} [2025-02-08 08:35:20,940 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 161 predicate places. [2025-02-08 08:35:20,940 INFO L471 AbstractCegarLoop]: Abstraction has has 206 places, 345 transitions, 9046 flow [2025-02-08 08:35:20,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:20,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:20,941 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 08:35:20,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-08 08:35:20,941 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:20,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:20,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1900539457, now seen corresponding path program 9 times [2025-02-08 08:35:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:20,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263225545] [2025-02-08 08:35:20,942 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:20,946 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:20,951 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:20,951 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:20,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:21,038 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 08:35:21,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:21,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263225545] [2025-02-08 08:35:21,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263225545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:21,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:21,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249479799] [2025-02-08 08:35:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:21,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:21,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:21,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:21,049 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:21,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 345 transitions, 9046 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:21,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:21,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:21,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:22,535 INFO L124 PetriNetUnfolderBase]: 5151/9434 cut-off events. [2025-02-08 08:35:22,535 INFO L125 PetriNetUnfolderBase]: For 234712/235237 co-relation queries the response was YES. [2025-02-08 08:35:22,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61289 conditions, 9434 events. 5151/9434 cut-off events. For 234712/235237 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 80259 event pairs, 1528 based on Foata normal form. 275/9574 useless extension candidates. Maximal degree in co-relation 58260. Up to 2923 conditions per place. [2025-02-08 08:35:22,620 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 306 selfloop transitions, 73 changer transitions 21/428 dead transitions. [2025-02-08 08:35:22,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 210 places, 428 transitions, 11127 flow [2025-02-08 08:35:22,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2025-02-08 08:35:22,621 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2025-02-08 08:35:22,621 INFO L175 Difference]: Start difference. First operand has 206 places, 345 transitions, 9046 flow. Second operand 5 states and 140 transitions. [2025-02-08 08:35:22,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 210 places, 428 transitions, 11127 flow [2025-02-08 08:35:23,525 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 428 transitions, 11026 flow, removed 18 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:23,532 INFO L231 Difference]: Finished difference. Result has 212 places, 351 transitions, 9416 flow [2025-02-08 08:35:23,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=8946, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9416, PETRI_PLACES=212, PETRI_TRANSITIONS=351} [2025-02-08 08:35:23,533 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 167 predicate places. [2025-02-08 08:35:23,533 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 351 transitions, 9416 flow [2025-02-08 08:35:23,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:23,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:23,533 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 08:35:23,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-08 08:35:23,534 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:23,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:23,534 INFO L85 PathProgramCache]: Analyzing trace with hash 267260115, now seen corresponding path program 13 times [2025-02-08 08:35:23,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:23,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348074270] [2025-02-08 08:35:23,534 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:35:23,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:23,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:23,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:23,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:23,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:23,660 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 08:35:23,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:23,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348074270] [2025-02-08 08:35:23,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348074270] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:23,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:23,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:23,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115165876] [2025-02-08 08:35:23,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:23,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:23,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:23,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:23,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:23,670 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:23,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 351 transitions, 9416 flow. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:23,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:23,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:23,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:25,308 INFO L124 PetriNetUnfolderBase]: 5286/9563 cut-off events. [2025-02-08 08:35:25,308 INFO L125 PetriNetUnfolderBase]: For 226263/226350 co-relation queries the response was YES. [2025-02-08 08:35:25,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62884 conditions, 9563 events. 5286/9563 cut-off events. For 226263/226350 co-relation queries the response was YES. Maximal size of possible extension queue 854. Compared 79535 event pairs, 1672 based on Foata normal form. 66/9612 useless extension candidates. Maximal degree in co-relation 60405. Up to 3201 conditions per place. [2025-02-08 08:35:25,430 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 302 selfloop transitions, 116 changer transitions 4/430 dead transitions. [2025-02-08 08:35:25,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 430 transitions, 10843 flow [2025-02-08 08:35:25,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:25,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:25,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-08 08:35:25,431 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2025-02-08 08:35:25,431 INFO L175 Difference]: Start difference. First operand has 212 places, 351 transitions, 9416 flow. Second operand 7 states and 192 transitions. [2025-02-08 08:35:25,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 430 transitions, 10843 flow [2025-02-08 08:35:26,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 430 transitions, 10782 flow, removed 22 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:26,592 INFO L231 Difference]: Finished difference. Result has 217 places, 350 transitions, 9562 flow [2025-02-08 08:35:26,592 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9330, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9562, PETRI_PLACES=217, PETRI_TRANSITIONS=350} [2025-02-08 08:35:26,593 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 172 predicate places. [2025-02-08 08:35:26,593 INFO L471 AbstractCegarLoop]: Abstraction has has 217 places, 350 transitions, 9562 flow [2025-02-08 08:35:26,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:26,593 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:26,593 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 08:35:26,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-08 08:35:26,593 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:26,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:26,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1194172469, now seen corresponding path program 10 times [2025-02-08 08:35:26,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:26,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546921348] [2025-02-08 08:35:26,594 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:26,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:26,597 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 23 statements into 2 equivalence classes. [2025-02-08 08:35:26,603 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:26,603 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:26,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:26,744 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 08:35:26,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:26,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546921348] [2025-02-08 08:35:26,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546921348] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:26,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:26,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-08 08:35:26,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028819139] [2025-02-08 08:35:26,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:26,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 08:35:26,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:26,745 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 08:35:26,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-08 08:35:26,759 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2025-02-08 08:35:26,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 350 transitions, 9562 flow. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:26,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:26,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2025-02-08 08:35:26,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:28,540 INFO L124 PetriNetUnfolderBase]: 6803/11629 cut-off events. [2025-02-08 08:35:28,540 INFO L125 PetriNetUnfolderBase]: For 268652/268696 co-relation queries the response was YES. [2025-02-08 08:35:28,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74983 conditions, 11629 events. 6803/11629 cut-off events. For 268652/268696 co-relation queries the response was YES. Maximal size of possible extension queue 950. Compared 92010 event pairs, 1953 based on Foata normal form. 56/11671 useless extension candidates. Maximal degree in co-relation 72556. Up to 7574 conditions per place. [2025-02-08 08:35:28,689 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 371 selfloop transitions, 74 changer transitions 0/452 dead transitions. [2025-02-08 08:35:28,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 452 transitions, 11743 flow [2025-02-08 08:35:28,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:28,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:28,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2025-02-08 08:35:28,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2025-02-08 08:35:28,690 INFO L175 Difference]: Start difference. First operand has 217 places, 350 transitions, 9562 flow. Second operand 7 states and 180 transitions. [2025-02-08 08:35:28,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 452 transitions, 11743 flow [2025-02-08 08:35:30,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 452 transitions, 11670 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:30,022 INFO L231 Difference]: Finished difference. Result has 224 places, 354 transitions, 9683 flow [2025-02-08 08:35:30,023 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9491, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=9683, PETRI_PLACES=224, PETRI_TRANSITIONS=354} [2025-02-08 08:35:30,023 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 179 predicate places. [2025-02-08 08:35:30,023 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 354 transitions, 9683 flow [2025-02-08 08:35:30,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:30,024 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:30,024 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 08:35:30,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-08 08:35:30,024 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:30,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:30,025 INFO L85 PathProgramCache]: Analyzing trace with hash 365814721, now seen corresponding path program 11 times [2025-02-08 08:35:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:30,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641112636] [2025-02-08 08:35:30,025 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:30,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:30,031 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:30,036 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:30,036 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:30,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:30,116 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 08:35:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641112636] [2025-02-08 08:35:30,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641112636] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:30,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:30,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:30,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409236894] [2025-02-08 08:35:30,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:30,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:30,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:30,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:30,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:30,130 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:30,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 354 transitions, 9683 flow. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:30,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:30,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:30,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:31,652 INFO L124 PetriNetUnfolderBase]: 5012/9167 cut-off events. [2025-02-08 08:35:31,652 INFO L125 PetriNetUnfolderBase]: For 249181/249777 co-relation queries the response was YES. [2025-02-08 08:35:31,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62664 conditions, 9167 events. 5012/9167 cut-off events. For 249181/249777 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 77561 event pairs, 1495 based on Foata normal form. 419/9462 useless extension candidates. Maximal degree in co-relation 60334. Up to 3064 conditions per place. [2025-02-08 08:35:31,738 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 312 selfloop transitions, 50 changer transitions 29/420 dead transitions. [2025-02-08 08:35:31,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 420 transitions, 11367 flow [2025-02-08 08:35:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:31,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:31,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 138 transitions. [2025-02-08 08:35:31,739 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6133333333333333 [2025-02-08 08:35:31,740 INFO L175 Difference]: Start difference. First operand has 224 places, 354 transitions, 9683 flow. Second operand 5 states and 138 transitions. [2025-02-08 08:35:31,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 420 transitions, 11367 flow [2025-02-08 08:35:32,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 420 transitions, 11274 flow, removed 7 selfloop flow, removed 3 redundant places. [2025-02-08 08:35:32,746 INFO L231 Difference]: Finished difference. Result has 228 places, 346 transitions, 9423 flow [2025-02-08 08:35:32,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9473, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9423, PETRI_PLACES=228, PETRI_TRANSITIONS=346} [2025-02-08 08:35:32,747 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 183 predicate places. [2025-02-08 08:35:32,747 INFO L471 AbstractCegarLoop]: Abstraction has has 228 places, 346 transitions, 9423 flow [2025-02-08 08:35:32,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:32,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:32,747 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 08:35:32,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-08 08:35:32,747 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:32,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:32,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1224884259, now seen corresponding path program 12 times [2025-02-08 08:35:32,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:32,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464800061] [2025-02-08 08:35:32,748 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:32,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:32,751 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 23 statements into 1 equivalence classes. [2025-02-08 08:35:32,755 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 08:35:32,755 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:32,755 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:32,810 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 08:35:32,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:32,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464800061] [2025-02-08 08:35:32,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464800061] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:32,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:32,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:32,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061653994] [2025-02-08 08:35:32,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:32,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:32,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:32,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:32,822 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2025-02-08 08:35:32,823 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 346 transitions, 9423 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:32,823 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:32,823 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2025-02-08 08:35:32,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:34,265 INFO L124 PetriNetUnfolderBase]: 4707/8888 cut-off events. [2025-02-08 08:35:34,265 INFO L125 PetriNetUnfolderBase]: For 222028/222729 co-relation queries the response was YES. [2025-02-08 08:35:34,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58608 conditions, 8888 events. 4707/8888 cut-off events. For 222028/222729 co-relation queries the response was YES. Maximal size of possible extension queue 837. Compared 77726 event pairs, 1456 based on Foata normal form. 382/9119 useless extension candidates. Maximal degree in co-relation 56044. Up to 2932 conditions per place. [2025-02-08 08:35:34,340 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 292 selfloop transitions, 44 changer transitions 6/393 dead transitions. [2025-02-08 08:35:34,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 232 places, 393 transitions, 10592 flow [2025-02-08 08:35:34,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:34,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2025-02-08 08:35:34,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5955555555555555 [2025-02-08 08:35:34,342 INFO L175 Difference]: Start difference. First operand has 228 places, 346 transitions, 9423 flow. Second operand 5 states and 134 transitions. [2025-02-08 08:35:34,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 232 places, 393 transitions, 10592 flow [2025-02-08 08:35:35,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 393 transitions, 10563 flow, removed 7 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:35,114 INFO L231 Difference]: Finished difference. Result has 232 places, 347 transitions, 9495 flow [2025-02-08 08:35:35,114 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9300, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=9495, PETRI_PLACES=232, PETRI_TRANSITIONS=347} [2025-02-08 08:35:35,114 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 187 predicate places. [2025-02-08 08:35:35,114 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 347 transitions, 9495 flow [2025-02-08 08:35:35,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:35,115 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:35,115 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:35,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-08 08:35:35,115 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:35,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:35,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1593984429, now seen corresponding path program 1 times [2025-02-08 08:35:35,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:35,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956546242] [2025-02-08 08:35:35,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:35,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:35,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:35,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:35,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:35,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:35,175 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 08:35:35,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956546242] [2025-02-08 08:35:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956546242] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:35,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:35,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956940975] [2025-02-08 08:35:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:35,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:35,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:35,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:35,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:35,187 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:35,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 347 transitions, 9495 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:35,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:35,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:35,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:36,606 INFO L124 PetriNetUnfolderBase]: 5270/9721 cut-off events. [2025-02-08 08:35:36,606 INFO L125 PetriNetUnfolderBase]: For 225991/226155 co-relation queries the response was YES. [2025-02-08 08:35:36,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65138 conditions, 9721 events. 5270/9721 cut-off events. For 225991/226155 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 82598 event pairs, 1057 based on Foata normal form. 149/9859 useless extension candidates. Maximal degree in co-relation 62739. Up to 3710 conditions per place. [2025-02-08 08:35:36,688 INFO L140 encePairwiseOnDemand]: 32/45 looper letters, 347 selfloop transitions, 90 changer transitions 16/462 dead transitions. [2025-02-08 08:35:36,689 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 462 transitions, 11766 flow [2025-02-08 08:35:36,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 208 transitions. [2025-02-08 08:35:36,690 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6603174603174603 [2025-02-08 08:35:36,690 INFO L175 Difference]: Start difference. First operand has 232 places, 347 transitions, 9495 flow. Second operand 7 states and 208 transitions. [2025-02-08 08:35:36,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 462 transitions, 11766 flow [2025-02-08 08:35:37,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 462 transitions, 11699 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:37,891 INFO L231 Difference]: Finished difference. Result has 241 places, 358 transitions, 10025 flow [2025-02-08 08:35:37,892 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9445, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10025, PETRI_PLACES=241, PETRI_TRANSITIONS=358} [2025-02-08 08:35:37,893 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 196 predicate places. [2025-02-08 08:35:37,893 INFO L471 AbstractCegarLoop]: Abstraction has has 241 places, 358 transitions, 10025 flow [2025-02-08 08:35:37,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:37,893 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:37,893 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:37,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-08 08:35:37,893 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:37,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:37,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1767558447, now seen corresponding path program 2 times [2025-02-08 08:35:37,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:37,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413792829] [2025-02-08 08:35:37,894 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:37,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:37,902 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:37,908 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:37,908 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:37,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:37,974 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 08:35:37,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:37,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413792829] [2025-02-08 08:35:37,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413792829] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:37,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:37,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:37,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339362271] [2025-02-08 08:35:37,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:37,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:37,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:37,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:37,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:37,980 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:37,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 358 transitions, 10025 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:37,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:37,981 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:37,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:39,775 INFO L124 PetriNetUnfolderBase]: 5602/10336 cut-off events. [2025-02-08 08:35:39,776 INFO L125 PetriNetUnfolderBase]: For 264350/264530 co-relation queries the response was YES. [2025-02-08 08:35:39,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71808 conditions, 10336 events. 5602/10336 cut-off events. For 264350/264530 co-relation queries the response was YES. Maximal size of possible extension queue 936. Compared 88689 event pairs, 1379 based on Foata normal form. 120/10442 useless extension candidates. Maximal degree in co-relation 69285. Up to 2453 conditions per place. [2025-02-08 08:35:39,860 INFO L140 encePairwiseOnDemand]: 33/45 looper letters, 360 selfloop transitions, 112 changer transitions 39/520 dead transitions. [2025-02-08 08:35:39,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 520 transitions, 13637 flow [2025-02-08 08:35:39,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 228 transitions. [2025-02-08 08:35:39,862 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-02-08 08:35:39,862 INFO L175 Difference]: Start difference. First operand has 241 places, 358 transitions, 10025 flow. Second operand 8 states and 228 transitions. [2025-02-08 08:35:39,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 520 transitions, 13637 flow [2025-02-08 08:35:41,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 520 transitions, 13585 flow, removed 20 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:41,123 INFO L231 Difference]: Finished difference. Result has 253 places, 392 transitions, 11496 flow [2025-02-08 08:35:41,124 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=9975, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11496, PETRI_PLACES=253, PETRI_TRANSITIONS=392} [2025-02-08 08:35:41,125 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 208 predicate places. [2025-02-08 08:35:41,125 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 392 transitions, 11496 flow [2025-02-08 08:35:41,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:41,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:41,125 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:41,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-08 08:35:41,129 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:41,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash -142587897, now seen corresponding path program 3 times [2025-02-08 08:35:41,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:41,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633267185] [2025-02-08 08:35:41,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:41,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:41,133 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:41,135 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:41,135 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:41,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:41,185 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 08:35:41,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:41,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633267185] [2025-02-08 08:35:41,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633267185] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:41,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:41,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435803367] [2025-02-08 08:35:41,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:41,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:41,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:41,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:41,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:41,200 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2025-02-08 08:35:41,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 392 transitions, 11496 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:41,200 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:41,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2025-02-08 08:35:41,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:43,244 INFO L124 PetriNetUnfolderBase]: 4911/9520 cut-off events. [2025-02-08 08:35:43,244 INFO L125 PetriNetUnfolderBase]: For 261930/262329 co-relation queries the response was YES. [2025-02-08 08:35:43,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65563 conditions, 9520 events. 4911/9520 cut-off events. For 261930/262329 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 86018 event pairs, 1366 based on Foata normal form. 315/9570 useless extension candidates. Maximal degree in co-relation 62503. Up to 2032 conditions per place. [2025-02-08 08:35:43,363 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 300 selfloop transitions, 111 changer transitions 11/512 dead transitions. [2025-02-08 08:35:43,366 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 512 transitions, 13618 flow [2025-02-08 08:35:43,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 208 transitions. [2025-02-08 08:35:43,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6603174603174603 [2025-02-08 08:35:43,367 INFO L175 Difference]: Start difference. First operand has 253 places, 392 transitions, 11496 flow. Second operand 7 states and 208 transitions. [2025-02-08 08:35:43,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 512 transitions, 13618 flow [2025-02-08 08:35:44,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 512 transitions, 13474 flow, removed 48 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:44,760 INFO L231 Difference]: Finished difference. Result has 263 places, 395 transitions, 11803 flow [2025-02-08 08:35:44,762 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=11355, PETRI_DIFFERENCE_MINUEND_PLACES=252, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=11803, PETRI_PLACES=263, PETRI_TRANSITIONS=395} [2025-02-08 08:35:44,765 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 218 predicate places. [2025-02-08 08:35:44,765 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 395 transitions, 11803 flow [2025-02-08 08:35:44,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:44,765 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:44,765 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:44,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-08 08:35:44,766 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:44,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:44,766 INFO L85 PathProgramCache]: Analyzing trace with hash -75647122, now seen corresponding path program 1 times [2025-02-08 08:35:44,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:44,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105152582] [2025-02-08 08:35:44,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:44,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:44,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:44,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:44,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:44,846 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 08:35:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105152582] [2025-02-08 08:35:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105152582] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:44,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:44,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:44,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248058374] [2025-02-08 08:35:44,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:44,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:44,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:44,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:44,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:44,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:44,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 395 transitions, 11803 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:44,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:44,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:44,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:46,735 INFO L124 PetriNetUnfolderBase]: 5885/11000 cut-off events. [2025-02-08 08:35:46,735 INFO L125 PetriNetUnfolderBase]: For 303914/304098 co-relation queries the response was YES. [2025-02-08 08:35:46,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77403 conditions, 11000 events. 5885/11000 cut-off events. For 303914/304098 co-relation queries the response was YES. Maximal size of possible extension queue 1015. Compared 96748 event pairs, 1160 based on Foata normal form. 193/11183 useless extension candidates. Maximal degree in co-relation 75322. Up to 2584 conditions per place. [2025-02-08 08:35:46,850 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 388 selfloop transitions, 132 changer transitions 19/548 dead transitions. [2025-02-08 08:35:46,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 548 transitions, 14937 flow [2025-02-08 08:35:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:46,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 243 transitions. [2025-02-08 08:35:46,851 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.675 [2025-02-08 08:35:46,851 INFO L175 Difference]: Start difference. First operand has 263 places, 395 transitions, 11803 flow. Second operand 8 states and 243 transitions. [2025-02-08 08:35:46,851 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 548 transitions, 14937 flow [2025-02-08 08:35:48,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 548 transitions, 14725 flow, removed 31 selfloop flow, removed 7 redundant places. [2025-02-08 08:35:48,459 INFO L231 Difference]: Finished difference. Result has 269 places, 423 transitions, 13004 flow [2025-02-08 08:35:48,459 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=11574, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=393, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13004, PETRI_PLACES=269, PETRI_TRANSITIONS=423} [2025-02-08 08:35:48,460 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 224 predicate places. [2025-02-08 08:35:48,460 INFO L471 AbstractCegarLoop]: Abstraction has has 269 places, 423 transitions, 13004 flow [2025-02-08 08:35:48,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:48,460 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:48,460 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:48,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-08 08:35:48,460 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:48,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:48,461 INFO L85 PathProgramCache]: Analyzing trace with hash -665880216, now seen corresponding path program 2 times [2025-02-08 08:35:48,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:48,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31608108] [2025-02-08 08:35:48,461 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:48,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:48,464 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:48,466 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:48,466 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:48,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:48,513 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 08:35:48,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:48,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31608108] [2025-02-08 08:35:48,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31608108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:48,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:48,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:48,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054939591] [2025-02-08 08:35:48,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:48,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:48,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:48,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:48,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:48,525 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:48,525 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 423 transitions, 13004 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:48,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:48,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:48,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:50,576 INFO L124 PetriNetUnfolderBase]: 5591/10617 cut-off events. [2025-02-08 08:35:50,576 INFO L125 PetriNetUnfolderBase]: For 303976/304226 co-relation queries the response was YES. [2025-02-08 08:35:50,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75926 conditions, 10617 events. 5591/10617 cut-off events. For 303976/304226 co-relation queries the response was YES. Maximal size of possible extension queue 983. Compared 94754 event pairs, 1899 based on Foata normal form. 198/10778 useless extension candidates. Maximal degree in co-relation 73445. Up to 3872 conditions per place. [2025-02-08 08:35:50,666 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 379 selfloop transitions, 96 changer transitions 12/518 dead transitions. [2025-02-08 08:35:50,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 518 transitions, 15024 flow [2025-02-08 08:35:50,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:50,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2025-02-08 08:35:50,667 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2025-02-08 08:35:50,667 INFO L175 Difference]: Start difference. First operand has 269 places, 423 transitions, 13004 flow. Second operand 7 states and 195 transitions. [2025-02-08 08:35:50,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 518 transitions, 15024 flow [2025-02-08 08:35:52,163 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 518 transitions, 14907 flow, removed 41 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:52,172 INFO L231 Difference]: Finished difference. Result has 278 places, 424 transitions, 13069 flow [2025-02-08 08:35:52,173 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=12898, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13069, PETRI_PLACES=278, PETRI_TRANSITIONS=424} [2025-02-08 08:35:52,173 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 233 predicate places. [2025-02-08 08:35:52,173 INFO L471 AbstractCegarLoop]: Abstraction has has 278 places, 424 transitions, 13069 flow [2025-02-08 08:35:52,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:52,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:52,173 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:52,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-08 08:35:52,174 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash -396820691, now seen corresponding path program 4 times [2025-02-08 08:35:52,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:52,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683974460] [2025-02-08 08:35:52,174 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:52,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:52,179 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:35:52,181 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:52,181 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:35:52,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:52,226 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 08:35:52,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:52,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683974460] [2025-02-08 08:35:52,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683974460] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:52,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:52,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:52,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007835786] [2025-02-08 08:35:52,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:52,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:52,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:52,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:52,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:52,237 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:35:52,237 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 424 transitions, 13069 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:52,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:52,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:35:52,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:54,270 INFO L124 PetriNetUnfolderBase]: 5767/10800 cut-off events. [2025-02-08 08:35:54,270 INFO L125 PetriNetUnfolderBase]: For 298441/298580 co-relation queries the response was YES. [2025-02-08 08:35:54,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78173 conditions, 10800 events. 5767/10800 cut-off events. For 298441/298580 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 95190 event pairs, 1270 based on Foata normal form. 149/10933 useless extension candidates. Maximal degree in co-relation 75630. Up to 4820 conditions per place. [2025-02-08 08:35:54,392 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 389 selfloop transitions, 87 changer transitions 8/493 dead transitions. [2025-02-08 08:35:54,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 493 transitions, 14791 flow [2025-02-08 08:35:54,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:54,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:54,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 146 transitions. [2025-02-08 08:35:54,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6488888888888888 [2025-02-08 08:35:54,397 INFO L175 Difference]: Start difference. First operand has 278 places, 424 transitions, 13069 flow. Second operand 5 states and 146 transitions. [2025-02-08 08:35:54,398 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 493 transitions, 14791 flow [2025-02-08 08:35:56,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 493 transitions, 14687 flow, removed 34 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:56,102 INFO L231 Difference]: Finished difference. Result has 283 places, 429 transitions, 13436 flow [2025-02-08 08:35:56,103 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=12971, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=13436, PETRI_PLACES=283, PETRI_TRANSITIONS=429} [2025-02-08 08:35:56,103 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 238 predicate places. [2025-02-08 08:35:56,103 INFO L471 AbstractCegarLoop]: Abstraction has has 283 places, 429 transitions, 13436 flow [2025-02-08 08:35:56,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:56,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:56,104 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] [2025-02-08 08:35:56,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-02-08 08:35:56,104 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:56,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:56,104 INFO L85 PathProgramCache]: Analyzing trace with hash -760138751, now seen corresponding path program 5 times [2025-02-08 08:35:56,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:56,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729002720] [2025-02-08 08:35:56,105 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:56,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:56,109 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:35:56,111 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:35:56,111 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:56,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:56,205 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 08:35:56,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:56,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729002720] [2025-02-08 08:35:56,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729002720] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:56,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:56,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:56,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891700208] [2025-02-08 08:35:56,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:56,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:56,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:56,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:56,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:56,229 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 45 [2025-02-08 08:35:56,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 429 transitions, 13436 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:56,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:56,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 45 [2025-02-08 08:35:56,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,114 INFO L124 PetriNetUnfolderBase]: 5492/10445 cut-off events. [2025-02-08 08:35:58,114 INFO L125 PetriNetUnfolderBase]: For 316498/316750 co-relation queries the response was YES. [2025-02-08 08:35:58,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76268 conditions, 10445 events. 5492/10445 cut-off events. For 316498/316750 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 93186 event pairs, 1986 based on Foata normal form. 243/10656 useless extension candidates. Maximal degree in co-relation 73743. Up to 3491 conditions per place. [2025-02-08 08:35:58,255 INFO L140 encePairwiseOnDemand]: 35/45 looper letters, 382 selfloop transitions, 95 changer transitions 11/519 dead transitions. [2025-02-08 08:35:58,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 519 transitions, 15355 flow [2025-02-08 08:35:58,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:58,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:58,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-08 08:35:58,256 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6095238095238096 [2025-02-08 08:35:58,256 INFO L175 Difference]: Start difference. First operand has 283 places, 429 transitions, 13436 flow. Second operand 7 states and 192 transitions. [2025-02-08 08:35:58,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 519 transitions, 15355 flow [2025-02-08 08:36:00,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 519 transitions, 15331 flow, removed 7 selfloop flow, removed 1 redundant places. [2025-02-08 08:36:00,145 INFO L231 Difference]: Finished difference. Result has 290 places, 425 transitions, 13378 flow [2025-02-08 08:36:00,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13414, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=13378, PETRI_PLACES=290, PETRI_TRANSITIONS=425} [2025-02-08 08:36:00,146 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 245 predicate places. [2025-02-08 08:36:00,146 INFO L471 AbstractCegarLoop]: Abstraction has has 290 places, 425 transitions, 13378 flow [2025-02-08 08:36:00,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:00,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:00,146 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:36:00,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-02-08 08:36:00,146 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:36:00,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:00,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1360937320, now seen corresponding path program 3 times [2025-02-08 08:36:00,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:00,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33101813] [2025-02-08 08:36:00,147 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:36:00,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:00,150 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:00,152 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:00,152 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:36:00,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:00,211 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 08:36:00,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33101813] [2025-02-08 08:36:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33101813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:00,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:00,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:36:00,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500250631] [2025-02-08 08:36:00,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:00,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:36:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:00,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:36:00,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:36:00,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:36:00,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 425 transitions, 13378 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:00,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:00,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:36:00,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:02,167 INFO L124 PetriNetUnfolderBase]: 5754/10792 cut-off events. [2025-02-08 08:36:02,167 INFO L125 PetriNetUnfolderBase]: For 313408/313589 co-relation queries the response was YES. [2025-02-08 08:36:02,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78549 conditions, 10792 events. 5754/10792 cut-off events. For 313408/313589 co-relation queries the response was YES. Maximal size of possible extension queue 1006. Compared 95389 event pairs, 1620 based on Foata normal form. 191/10967 useless extension candidates. Maximal degree in co-relation 76356. Up to 6821 conditions per place. [2025-02-08 08:36:02,281 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 415 selfloop transitions, 58 changer transitions 1/483 dead transitions. [2025-02-08 08:36:02,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 483 transitions, 14894 flow [2025-02-08 08:36:02,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:36:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:36:02,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2025-02-08 08:36:02,282 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2025-02-08 08:36:02,282 INFO L175 Difference]: Start difference. First operand has 290 places, 425 transitions, 13378 flow. Second operand 5 states and 139 transitions. [2025-02-08 08:36:02,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 483 transitions, 14894 flow [2025-02-08 08:36:03,827 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 483 transitions, 14788 flow, removed 33 selfloop flow, removed 4 redundant places. [2025-02-08 08:36:03,836 INFO L231 Difference]: Finished difference. Result has 291 places, 427 transitions, 13545 flow [2025-02-08 08:36:03,836 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13210, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=13545, PETRI_PLACES=291, PETRI_TRANSITIONS=427} [2025-02-08 08:36:03,836 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 246 predicate places. [2025-02-08 08:36:03,836 INFO L471 AbstractCegarLoop]: Abstraction has has 291 places, 427 transitions, 13545 flow [2025-02-08 08:36:03,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:03,837 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:03,837 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:36:03,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-02-08 08:36:03,837 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:36:03,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:03,837 INFO L85 PathProgramCache]: Analyzing trace with hash 184091907, now seen corresponding path program 6 times [2025-02-08 08:36:03,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:03,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074868206] [2025-02-08 08:36:03,838 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:36:03,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:03,841 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:03,842 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:03,842 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:36:03,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:03,903 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 08:36:03,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:03,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074868206] [2025-02-08 08:36:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074868206] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:03,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:36:03,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110434234] [2025-02-08 08:36:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:03,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:36:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:03,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:36:03,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:36:03,926 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:36:03,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 427 transitions, 13545 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:03,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:03,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:36:03,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:06,042 INFO L124 PetriNetUnfolderBase]: 6160/11665 cut-off events. [2025-02-08 08:36:06,043 INFO L125 PetriNetUnfolderBase]: For 327780/327990 co-relation queries the response was YES. [2025-02-08 08:36:06,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83083 conditions, 11665 events. 6160/11665 cut-off events. For 327780/327990 co-relation queries the response was YES. Maximal size of possible extension queue 1089. Compared 105273 event pairs, 1811 based on Foata normal form. 220/11869 useless extension candidates. Maximal degree in co-relation 80160. Up to 8886 conditions per place. [2025-02-08 08:36:06,215 INFO L140 encePairwiseOnDemand]: 37/45 looper letters, 438 selfloop transitions, 39 changer transitions 1/487 dead transitions. [2025-02-08 08:36:06,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 487 transitions, 15290 flow [2025-02-08 08:36:06,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:36:06,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:36:06,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 129 transitions. [2025-02-08 08:36:06,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5733333333333334 [2025-02-08 08:36:06,217 INFO L175 Difference]: Start difference. First operand has 291 places, 427 transitions, 13545 flow. Second operand 5 states and 129 transitions. [2025-02-08 08:36:06,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 487 transitions, 15290 flow [2025-02-08 08:36:08,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 487 transitions, 15257 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-08 08:36:08,311 INFO L231 Difference]: Finished difference. Result has 295 places, 434 transitions, 13910 flow [2025-02-08 08:36:08,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13513, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=388, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=13910, PETRI_PLACES=295, PETRI_TRANSITIONS=434} [2025-02-08 08:36:08,312 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 250 predicate places. [2025-02-08 08:36:08,312 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 434 transitions, 13910 flow [2025-02-08 08:36:08,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:08,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:08,312 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:36:08,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-02-08 08:36:08,312 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:36:08,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 299000507, now seen corresponding path program 7 times [2025-02-08 08:36:08,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:08,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079274307] [2025-02-08 08:36:08,313 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-02-08 08:36:08,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:08,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:08,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:08,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:36:08,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:08,403 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 08:36:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:08,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079274307] [2025-02-08 08:36:08,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079274307] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:08,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:08,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:36:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888245390] [2025-02-08 08:36:08,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:08,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:36:08,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:08,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:36:08,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:36:08,422 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:36:08,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 434 transitions, 13910 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:08,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:08,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:36:08,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:11,274 INFO L124 PetriNetUnfolderBase]: 6253/11895 cut-off events. [2025-02-08 08:36:11,275 INFO L125 PetriNetUnfolderBase]: For 336303/336519 co-relation queries the response was YES. [2025-02-08 08:36:11,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84379 conditions, 11895 events. 6253/11895 cut-off events. For 336303/336519 co-relation queries the response was YES. Maximal size of possible extension queue 1107. Compared 108126 event pairs, 1387 based on Foata normal form. 224/12103 useless extension candidates. Maximal degree in co-relation 81451. Up to 6771 conditions per place. [2025-02-08 08:36:11,439 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 392 selfloop transitions, 85 changer transitions 1/487 dead transitions. [2025-02-08 08:36:11,440 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 487 transitions, 15448 flow [2025-02-08 08:36:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:36:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:36:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 141 transitions. [2025-02-08 08:36:11,441 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2025-02-08 08:36:11,441 INFO L175 Difference]: Start difference. First operand has 295 places, 434 transitions, 13910 flow. Second operand 5 states and 141 transitions. [2025-02-08 08:36:11,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 487 transitions, 15448 flow [2025-02-08 08:36:13,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 487 transitions, 15392 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 08:36:13,690 INFO L231 Difference]: Finished difference. Result has 298 places, 438 transitions, 14214 flow [2025-02-08 08:36:13,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=13854, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=14214, PETRI_PLACES=298, PETRI_TRANSITIONS=438} [2025-02-08 08:36:13,691 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 253 predicate places. [2025-02-08 08:36:13,691 INFO L471 AbstractCegarLoop]: Abstraction has has 298 places, 438 transitions, 14214 flow [2025-02-08 08:36:13,692 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:13,692 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:13,692 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:36:13,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-02-08 08:36:13,692 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:36:13,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:13,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1414047619, now seen corresponding path program 8 times [2025-02-08 08:36:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050456172] [2025-02-08 08:36:13,693 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:36:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:13,696 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 24 statements into 1 equivalence classes. [2025-02-08 08:36:13,698 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:13,698 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:36:13,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:13,766 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 08:36:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050456172] [2025-02-08 08:36:13,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050456172] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:13,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:13,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:36:13,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303622263] [2025-02-08 08:36:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:13,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:36:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:13,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:36:13,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:36:13,797 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:36:13,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 438 transitions, 14214 flow. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:13,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:13,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:36:13,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:36:16,204 INFO L124 PetriNetUnfolderBase]: 6245/11860 cut-off events. [2025-02-08 08:36:16,204 INFO L125 PetriNetUnfolderBase]: For 340237/340432 co-relation queries the response was YES. [2025-02-08 08:36:16,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85388 conditions, 11860 events. 6245/11860 cut-off events. For 340237/340432 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 107453 event pairs, 1895 based on Foata normal form. 203/12047 useless extension candidates. Maximal degree in co-relation 83408. Up to 8886 conditions per place. [2025-02-08 08:36:16,340 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 448 selfloop transitions, 34 changer transitions 0/491 dead transitions. [2025-02-08 08:36:16,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 491 transitions, 15704 flow [2025-02-08 08:36:16,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:36:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:36:16,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 130 transitions. [2025-02-08 08:36:16,341 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2025-02-08 08:36:16,341 INFO L175 Difference]: Start difference. First operand has 298 places, 438 transitions, 14214 flow. Second operand 5 states and 130 transitions. [2025-02-08 08:36:16,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 491 transitions, 15704 flow [2025-02-08 08:36:18,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 491 transitions, 15576 flow, removed 49 selfloop flow, removed 3 redundant places. [2025-02-08 08:36:18,569 INFO L231 Difference]: Finished difference. Result has 300 places, 441 transitions, 14230 flow [2025-02-08 08:36:18,570 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=14035, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=14230, PETRI_PLACES=300, PETRI_TRANSITIONS=441} [2025-02-08 08:36:18,570 INFO L279 CegarLoopForPetriNet]: 45 programPoint places, 255 predicate places. [2025-02-08 08:36:18,570 INFO L471 AbstractCegarLoop]: Abstraction has has 300 places, 441 transitions, 14230 flow [2025-02-08 08:36:18,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:18,570 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:36:18,571 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:36:18,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-08 08:36:18,571 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:36:18,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:36:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash -110124250, now seen corresponding path program 4 times [2025-02-08 08:36:18,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:36:18,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777992315] [2025-02-08 08:36:18,571 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:36:18,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:36:18,576 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 24 statements into 2 equivalence classes. [2025-02-08 08:36:18,579 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 24 of 24 statements. [2025-02-08 08:36:18,579 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-02-08 08:36:18,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:36:18,639 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 08:36:18,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:36:18,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777992315] [2025-02-08 08:36:18,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777992315] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:36:18,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:36:18,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:36:18,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379248706] [2025-02-08 08:36:18,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:36:18,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:36:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:36:18,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:36:18,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:36:18,655 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 45 [2025-02-08 08:36:18,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 441 transitions, 14230 flow. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:36:18,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:36:18,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 45 [2025-02-08 08:36:18,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand