./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/chl-simpl-str-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-simpl-str-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 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:35:52,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:35:52,193 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:35:52,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:35:52,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:35:52,223 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:35:52,224 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:35:52,224 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:35:52,224 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:35:52,224 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:35:52,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:35:52,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:35:52,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:35:52,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:35:52,225 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:35:52,226 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:35:52,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:35:52,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:35:52,227 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:35:52,227 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 -> 58f1358e24877c92a149b6121e272e93974801203e91da3c444aa78d712ada40 [2025-02-08 08:35:52,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:35:52,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:35:52,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:35:52,456 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:35:52,457 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:35:52,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2025-02-08 08:35:53,626 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ecb73bb3/b337dc32be26462d91e773291d06407c/FLAG53ab82b2a [2025-02-08 08:35:53,904 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:35:53,904 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-simpl-str-subst.wvr.c [2025-02-08 08:35:53,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ecb73bb3/b337dc32be26462d91e773291d06407c/FLAG53ab82b2a [2025-02-08 08:35:53,920 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9ecb73bb3/b337dc32be26462d91e773291d06407c [2025-02-08 08:35:53,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:35:53,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:35:53,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:35:53,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:35:53,927 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:35:53,928 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:35:53" (1/1) ... [2025-02-08 08:35:53,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b865710 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:53, skipping insertion in model container [2025-02-08 08:35:53,930 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:35:53" (1/1) ... [2025-02-08 08:35:53,940 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:35:54,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:35:54,057 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:35:54,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:35:54,090 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:35:54,091 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54 WrapperNode [2025-02-08 08:35:54,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:35:54,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:35:54,092 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:35:54,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:35:54,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,121 INFO L138 Inliner]: procedures = 22, calls = 17, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 159 [2025-02-08 08:35:54,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:35:54,122 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:35:54,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:35:54,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:35:54,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,129 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,137 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 08:35:54,137 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,138 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,140 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,141 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,142 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:35:54,144 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:35:54,144 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:35:54,144 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:35:54,145 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (1/1) ... [2025-02-08 08:35:54,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:35:54,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:35:54,170 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 08:35:54,177 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 08:35:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:35:54,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-08 08:35:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-08 08:35:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-08 08:35:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-08 08:35:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-08 08:35:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-08 08:35:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:35:54,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:35:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:35:54,195 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 08:35:54,283 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:35:54,284 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:35:54,374 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-5: #t~ite2#1 := #t~ret1#1; [2025-02-08 08:35:54,374 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret1#1 && #t~ret1#1 <= 2147483647; [2025-02-08 08:35:54,374 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:35:54,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:35:54,375 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L43-9: #t~ret1#1 := minus_#res#1; [2025-02-08 08:35:54,415 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-5: #t~ite5#1 := #t~ret4#1; [2025-02-08 08:35:54,416 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret4#1 && #t~ret4#1 <= 2147483647; [2025-02-08 08:35:54,416 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:35:54,416 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:35:54,416 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L49-9: #t~ret4#1 := minus_#res#1; [2025-02-08 08:35:54,458 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-5: #t~ite8#1 := #t~ret7#1; [2025-02-08 08:35:54,459 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-6: assume { :end_inline_minus } true;assume -2147483648 <= #t~ret7#1 && #t~ret7#1 <= 2147483647; [2025-02-08 08:35:54,459 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-7: havoc minus_#in~a#1, minus_#in~b#1; [2025-02-08 08:35:54,459 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-8: havoc minus_~a#1, minus_~b#1; [2025-02-08 08:35:54,460 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L55-9: #t~ret7#1 := minus_#res#1; [2025-02-08 08:35:54,536 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:35:54,536 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:35:54,693 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:35:54,694 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:35:54,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:35:54 BoogieIcfgContainer [2025-02-08 08:35:54,694 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:35:54,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:35:54,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:35:54,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:35:54,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:35:53" (1/3) ... [2025-02-08 08:35:54,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc3c4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:35:54, skipping insertion in model container [2025-02-08 08:35:54,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:35:54" (2/3) ... [2025-02-08 08:35:54,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc3c4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:35:54, skipping insertion in model container [2025-02-08 08:35:54,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:35:54" (3/3) ... [2025-02-08 08:35:54,702 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-subst.wvr.c [2025-02-08 08:35:54,712 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:35:54,713 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-simpl-str-subst.wvr.c that has 4 procedures, 34 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 08:35:54,713 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:35:54,764 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-08 08:35:54,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 36 transitions, 93 flow [2025-02-08 08:35:54,814 INFO L124 PetriNetUnfolderBase]: 3/33 cut-off events. [2025-02-08 08:35:54,818 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:35:54,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 33 events. 3/33 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 55 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2025-02-08 08:35:54,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 36 transitions, 93 flow [2025-02-08 08:35:54,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 39 places, 32 transitions, 82 flow [2025-02-08 08:35:54,843 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:35:54,856 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;@17e704f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:35:54,856 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 08:35:54,871 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:35:54,874 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2025-02-08 08:35:54,874 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:35:54,875 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:54,875 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:54,875 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 08:35:54,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash -742531211, now seen corresponding path program 1 times [2025-02-08 08:35:54,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:54,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201001834] [2025-02-08 08:35:54,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:54,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:54,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:54,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:54,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:54,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:55,635 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 08:35:55,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:55,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201001834] [2025-02-08 08:35:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201001834] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:55,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:55,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:55,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855500768] [2025-02-08 08:35:55,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:55,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:55,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:55,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:55,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:55,666 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:55,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 82 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:55,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:55,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:55,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:56,003 INFO L124 PetriNetUnfolderBase]: 587/908 cut-off events. [2025-02-08 08:35:56,003 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-02-08 08:35:56,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1865 conditions, 908 events. 587/908 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 4550 event pairs, 168 based on Foata normal form. 3/712 useless extension candidates. Maximal degree in co-relation 1640. Up to 342 conditions per place. [2025-02-08 08:35:56,008 INFO L140 encePairwiseOnDemand]: 29/36 looper letters, 51 selfloop transitions, 8 changer transitions 27/93 dead transitions. [2025-02-08 08:35:56,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 93 transitions, 412 flow [2025-02-08 08:35:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:56,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 177 transitions. [2025-02-08 08:35:56,017 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2025-02-08 08:35:56,018 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 82 flow. Second operand 8 states and 177 transitions. [2025-02-08 08:35:56,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 93 transitions, 412 flow [2025-02-08 08:35:56,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 93 transitions, 376 flow, removed 0 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:56,026 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 109 flow [2025-02-08 08:35:56,028 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=109, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2025-02-08 08:35:56,030 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2025-02-08 08:35:56,030 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 109 flow [2025-02-08 08:35:56,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:56,030 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:56,030 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:56,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:35:56,031 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:56,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash 598514837, now seen corresponding path program 2 times [2025-02-08 08:35:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167160648] [2025-02-08 08:35:56,031 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:56,038 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:56,055 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:56,055 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:56,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:56,400 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 08:35:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167160648] [2025-02-08 08:35:56,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167160648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:56,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:56,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:56,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508334051] [2025-02-08 08:35:56,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:56,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:56,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:56,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:56,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:56,403 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:56,403 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 109 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:56,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:56,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:56,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:56,663 INFO L124 PetriNetUnfolderBase]: 431/700 cut-off events. [2025-02-08 08:35:56,663 INFO L125 PetriNetUnfolderBase]: For 293/293 co-relation queries the response was YES. [2025-02-08 08:35:56,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1818 conditions, 700 events. 431/700 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3158 event pairs, 78 based on Foata normal form. 1/678 useless extension candidates. Maximal degree in co-relation 1794. Up to 227 conditions per place. [2025-02-08 08:35:56,669 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 56 selfloop transitions, 12 changer transitions 15/90 dead transitions. [2025-02-08 08:35:56,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 90 transitions, 440 flow [2025-02-08 08:35:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 08:35:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 08:35:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 166 transitions. [2025-02-08 08:35:56,678 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5763888888888888 [2025-02-08 08:35:56,678 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 109 flow. Second operand 8 states and 166 transitions. [2025-02-08 08:35:56,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 90 transitions, 440 flow [2025-02-08 08:35:56,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 90 transitions, 432 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:56,682 INFO L231 Difference]: Finished difference. Result has 47 places, 39 transitions, 175 flow [2025-02-08 08:35:56,682 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=175, PETRI_PLACES=47, PETRI_TRANSITIONS=39} [2025-02-08 08:35:56,683 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 8 predicate places. [2025-02-08 08:35:56,683 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 39 transitions, 175 flow [2025-02-08 08:35:56,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:56,683 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:56,683 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:56,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:35:56,684 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:56,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:56,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1443810307, now seen corresponding path program 3 times [2025-02-08 08:35:56,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:56,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448145323] [2025-02-08 08:35:56,685 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:56,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:56,694 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:56,702 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:56,702 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:56,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:57,091 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 08:35:57,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:57,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448145323] [2025-02-08 08:35:57,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448145323] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:57,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:57,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:57,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984104470] [2025-02-08 08:35:57,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:57,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:57,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:57,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:57,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:57,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:57,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 39 transitions, 175 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:57,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:57,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:57,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:57,323 INFO L124 PetriNetUnfolderBase]: 439/720 cut-off events. [2025-02-08 08:35:57,323 INFO L125 PetriNetUnfolderBase]: For 668/680 co-relation queries the response was YES. [2025-02-08 08:35:57,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 720 events. 439/720 cut-off events. For 668/680 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 3316 event pairs, 95 based on Foata normal form. 10/697 useless extension candidates. Maximal degree in co-relation 2051. Up to 360 conditions per place. [2025-02-08 08:35:57,328 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 46 selfloop transitions, 14 changer transitions 9/76 dead transitions. [2025-02-08 08:35:57,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 76 transitions, 421 flow [2025-02-08 08:35:57,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 142 transitions. [2025-02-08 08:35:57,329 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5634920634920635 [2025-02-08 08:35:57,329 INFO L175 Difference]: Start difference. First operand has 47 places, 39 transitions, 175 flow. Second operand 7 states and 142 transitions. [2025-02-08 08:35:57,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 76 transitions, 421 flow [2025-02-08 08:35:57,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 76 transitions, 405 flow, removed 8 selfloop flow, removed 2 redundant places. [2025-02-08 08:35:57,334 INFO L231 Difference]: Finished difference. Result has 52 places, 41 transitions, 223 flow [2025-02-08 08:35:57,334 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=223, PETRI_PLACES=52, PETRI_TRANSITIONS=41} [2025-02-08 08:35:57,335 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2025-02-08 08:35:57,335 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 41 transitions, 223 flow [2025-02-08 08:35:57,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:57,335 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:57,335 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:57,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:35:57,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:57,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:57,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1309332793, now seen corresponding path program 4 times [2025-02-08 08:35:57,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:57,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698638569] [2025-02-08 08:35:57,337 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-02-08 08:35:57,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:57,352 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 21 statements into 2 equivalence classes. [2025-02-08 08:35:57,356 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) and asserted 20 of 21 statements. [2025-02-08 08:35:57,356 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 1 check-sat command(s) [2025-02-08 08:35:57,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:57,546 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 08:35:57,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:57,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698638569] [2025-02-08 08:35:57,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698638569] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:57,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:57,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:57,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798686960] [2025-02-08 08:35:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:57,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:57,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:57,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:57,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:57,548 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:57,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 41 transitions, 223 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:57,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:57,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:57,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:57,758 INFO L124 PetriNetUnfolderBase]: 422/690 cut-off events. [2025-02-08 08:35:57,758 INFO L125 PetriNetUnfolderBase]: For 914/914 co-relation queries the response was YES. [2025-02-08 08:35:57,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2220 conditions, 690 events. 422/690 cut-off events. For 914/914 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3135 event pairs, 87 based on Foata normal form. 1/668 useless extension candidates. Maximal degree in co-relation 2113. Up to 363 conditions per place. [2025-02-08 08:35:57,763 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 47 selfloop transitions, 14 changer transitions 9/77 dead transitions. [2025-02-08 08:35:57,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 77 transitions, 458 flow [2025-02-08 08:35:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:57,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2025-02-08 08:35:57,764 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5674603174603174 [2025-02-08 08:35:57,764 INFO L175 Difference]: Start difference. First operand has 52 places, 41 transitions, 223 flow. Second operand 7 states and 143 transitions. [2025-02-08 08:35:57,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 77 transitions, 458 flow [2025-02-08 08:35:57,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 77 transitions, 417 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:57,769 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 229 flow [2025-02-08 08:35:57,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=229, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2025-02-08 08:35:57,769 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 14 predicate places. [2025-02-08 08:35:57,770 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 229 flow [2025-02-08 08:35:57,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:57,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:57,770 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:57,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:35:57,770 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:57,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1614598937, now seen corresponding path program 5 times [2025-02-08 08:35:57,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:57,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102782977] [2025-02-08 08:35:57,771 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-02-08 08:35:57,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:57,776 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:57,779 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:57,780 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:57,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:57,961 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 08:35:57,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:57,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102782977] [2025-02-08 08:35:57,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102782977] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:57,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:57,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:57,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821085508] [2025-02-08 08:35:57,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:57,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:57,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:57,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:57,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:57,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:57,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 229 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:57,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:57,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:57,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,160 INFO L124 PetriNetUnfolderBase]: 416/685 cut-off events. [2025-02-08 08:35:58,160 INFO L125 PetriNetUnfolderBase]: For 997/997 co-relation queries the response was YES. [2025-02-08 08:35:58,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2213 conditions, 685 events. 416/685 cut-off events. For 997/997 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 3116 event pairs, 87 based on Foata normal form. 1/663 useless extension candidates. Maximal degree in co-relation 1991. Up to 356 conditions per place. [2025-02-08 08:35:58,164 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 42 selfloop transitions, 12 changer transitions 16/77 dead transitions. [2025-02-08 08:35:58,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 77 transitions, 454 flow [2025-02-08 08:35:58,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:58,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:58,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 143 transitions. [2025-02-08 08:35:58,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5674603174603174 [2025-02-08 08:35:58,169 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 229 flow. Second operand 7 states and 143 transitions. [2025-02-08 08:35:58,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 77 transitions, 454 flow [2025-02-08 08:35:58,172 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 77 transitions, 419 flow, removed 1 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:58,173 INFO L231 Difference]: Finished difference. Result has 55 places, 39 transitions, 210 flow [2025-02-08 08:35:58,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=210, PETRI_PLACES=55, PETRI_TRANSITIONS=39} [2025-02-08 08:35:58,175 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 16 predicate places. [2025-02-08 08:35:58,175 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 39 transitions, 210 flow [2025-02-08 08:35:58,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:58,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:58,176 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:58,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:35:58,176 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:58,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:58,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1610044087, now seen corresponding path program 6 times [2025-02-08 08:35:58,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:58,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418414041] [2025-02-08 08:35:58,177 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-02-08 08:35:58,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:58,181 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 21 statements into 1 equivalence classes. [2025-02-08 08:35:58,186 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-08 08:35:58,187 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2025-02-08 08:35:58,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:58,423 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 08:35:58,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:58,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418414041] [2025-02-08 08:35:58,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418414041] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:58,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:58,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 08:35:58,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97242060] [2025-02-08 08:35:58,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:58,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 08:35:58,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:58,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 08:35:58,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 08:35:58,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 36 [2025-02-08 08:35:58,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 39 transitions, 210 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:58,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:58,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 36 [2025-02-08 08:35:58,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,682 INFO L124 PetriNetUnfolderBase]: 385/634 cut-off events. [2025-02-08 08:35:58,682 INFO L125 PetriNetUnfolderBase]: For 1006/1024 co-relation queries the response was YES. [2025-02-08 08:35:58,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2051 conditions, 634 events. 385/634 cut-off events. For 1006/1024 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2876 event pairs, 95 based on Foata normal form. 13/617 useless extension candidates. Maximal degree in co-relation 1921. Up to 315 conditions per place. [2025-02-08 08:35:58,690 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 41 selfloop transitions, 10 changer transitions 16/74 dead transitions. [2025-02-08 08:35:58,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 74 transitions, 429 flow [2025-02-08 08:35:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:58,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:58,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 142 transitions. [2025-02-08 08:35:58,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5634920634920635 [2025-02-08 08:35:58,691 INFO L175 Difference]: Start difference. First operand has 55 places, 39 transitions, 210 flow. Second operand 7 states and 142 transitions. [2025-02-08 08:35:58,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 74 transitions, 429 flow [2025-02-08 08:35:58,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 74 transitions, 392 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-08 08:35:58,694 INFO L231 Difference]: Finished difference. Result has 53 places, 37 transitions, 186 flow [2025-02-08 08:35:58,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=186, PETRI_PLACES=53, PETRI_TRANSITIONS=37} [2025-02-08 08:35:58,697 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 14 predicate places. [2025-02-08 08:35:58,697 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 37 transitions, 186 flow [2025-02-08 08:35:58,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 08:35:58,697 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:58,697 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] [2025-02-08 08:35:58,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 08:35:58,698 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:58,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:58,699 INFO L85 PathProgramCache]: Analyzing trace with hash -795934381, now seen corresponding path program 1 times [2025-02-08 08:35:58,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:58,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755839532] [2025-02-08 08:35:58,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:58,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:35:58,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:35:58,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:58,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:58,725 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 08:35:58,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:58,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755839532] [2025-02-08 08:35:58,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755839532] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:58,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:58,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:58,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137277321] [2025-02-08 08:35:58,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:58,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:58,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:58,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:58,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:58,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 36 [2025-02-08 08:35:58,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 37 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:58,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:58,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 36 [2025-02-08 08:35:58,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,835 INFO L124 PetriNetUnfolderBase]: 731/1189 cut-off events. [2025-02-08 08:35:58,836 INFO L125 PetriNetUnfolderBase]: For 2170/2170 co-relation queries the response was YES. [2025-02-08 08:35:58,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3840 conditions, 1189 events. 731/1189 cut-off events. For 2170/2170 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 6003 event pairs, 415 based on Foata normal form. 29/1131 useless extension candidates. Maximal degree in co-relation 3501. Up to 609 conditions per place. [2025-02-08 08:35:58,843 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 54 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2025-02-08 08:35:58,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 62 transitions, 429 flow [2025-02-08 08:35:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:58,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2025-02-08 08:35:58,845 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2025-02-08 08:35:58,845 INFO L175 Difference]: Start difference. First operand has 53 places, 37 transitions, 186 flow. Second operand 3 states and 69 transitions. [2025-02-08 08:35:58,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 62 transitions, 429 flow [2025-02-08 08:35:58,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 62 transitions, 382 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-02-08 08:35:58,851 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 196 flow [2025-02-08 08:35:58,851 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2025-02-08 08:35:58,852 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 10 predicate places. [2025-02-08 08:35:58,853 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 196 flow [2025-02-08 08:35:58,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:58,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:58,853 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:35:58,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 08:35:58,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:58,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:58,854 INFO L85 PathProgramCache]: Analyzing trace with hash 750453057, now seen corresponding path program 2 times [2025-02-08 08:35:58,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:58,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149229381] [2025-02-08 08:35:58,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:58,860 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:35:58,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:35:58,864 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:58,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:58,876 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 08:35:58,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:58,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149229381] [2025-02-08 08:35:58,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149229381] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:58,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:58,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:35:58,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505875946] [2025-02-08 08:35:58,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:58,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:35:58,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:58,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:35:58,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:35:58,881 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 36 [2025-02-08 08:35:58,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:58,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:58,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 36 [2025-02-08 08:35:58,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:58,969 INFO L124 PetriNetUnfolderBase]: 514/854 cut-off events. [2025-02-08 08:35:58,969 INFO L125 PetriNetUnfolderBase]: For 1780/1798 co-relation queries the response was YES. [2025-02-08 08:35:58,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2630 conditions, 854 events. 514/854 cut-off events. For 1780/1798 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4197 event pairs, 200 based on Foata normal form. 69/904 useless extension candidates. Maximal degree in co-relation 2402. Up to 589 conditions per place. [2025-02-08 08:35:58,974 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 50 selfloop transitions, 2 changer transitions 0/57 dead transitions. [2025-02-08 08:35:58,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 57 transitions, 364 flow [2025-02-08 08:35:58,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:35:58,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:35:58,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2025-02-08 08:35:58,975 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6203703703703703 [2025-02-08 08:35:58,975 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 196 flow. Second operand 3 states and 67 transitions. [2025-02-08 08:35:58,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 57 transitions, 364 flow [2025-02-08 08:35:58,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 57 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:58,983 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 219 flow [2025-02-08 08:35:58,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=219, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2025-02-08 08:35:58,983 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 13 predicate places. [2025-02-08 08:35:58,983 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 219 flow [2025-02-08 08:35:58,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:58,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:58,984 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] [2025-02-08 08:35:58,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 08:35:58,984 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:58,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:58,984 INFO L85 PathProgramCache]: Analyzing trace with hash 21929447, now seen corresponding path program 1 times [2025-02-08 08:35:58,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:58,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190136274] [2025-02-08 08:35:58,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:35:58,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:58,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:35:58,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:35:58,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:35:58,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:59,058 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 08:35:59,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:59,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190136274] [2025-02-08 08:35:59,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190136274] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:59,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:59,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:59,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050020032] [2025-02-08 08:35:59,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:59,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:59,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:59,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:59,059 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:59,062 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2025-02-08 08:35:59,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 219 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:59,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2025-02-08 08:35:59,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:59,224 INFO L124 PetriNetUnfolderBase]: 561/981 cut-off events. [2025-02-08 08:35:59,225 INFO L125 PetriNetUnfolderBase]: For 1417/1485 co-relation queries the response was YES. [2025-02-08 08:35:59,226 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 981 events. 561/981 cut-off events. For 1417/1485 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 5454 event pairs, 67 based on Foata normal form. 4/961 useless extension candidates. Maximal degree in co-relation 2697. Up to 312 conditions per place. [2025-02-08 08:35:59,229 INFO L140 encePairwiseOnDemand]: 30/36 looper letters, 83 selfloop transitions, 12 changer transitions 18/121 dead transitions. [2025-02-08 08:35:59,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 121 transitions, 826 flow [2025-02-08 08:35:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 148 transitions. [2025-02-08 08:35:59,231 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2025-02-08 08:35:59,231 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 219 flow. Second operand 7 states and 148 transitions. [2025-02-08 08:35:59,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 121 transitions, 826 flow [2025-02-08 08:35:59,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 121 transitions, 820 flow, removed 2 selfloop flow, removed 1 redundant places. [2025-02-08 08:35:59,236 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 310 flow [2025-02-08 08:35:59,237 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=310, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2025-02-08 08:35:59,237 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 22 predicate places. [2025-02-08 08:35:59,237 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 310 flow [2025-02-08 08:35:59,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:59,238 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] [2025-02-08 08:35:59,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 08:35:59,238 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:59,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:59,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1190087393, now seen corresponding path program 2 times [2025-02-08 08:35:59,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:59,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285553598] [2025-02-08 08:35:59,239 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 08:35:59,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:59,242 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:35:59,246 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:35:59,246 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 08:35:59,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:59,279 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 08:35:59,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:59,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285553598] [2025-02-08 08:35:59,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285553598] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:59,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:59,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:59,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182336201] [2025-02-08 08:35:59,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:59,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:59,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:59,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:59,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:59,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2025-02-08 08:35:59,282 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 310 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:59,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2025-02-08 08:35:59,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:59,442 INFO L124 PetriNetUnfolderBase]: 482/862 cut-off events. [2025-02-08 08:35:59,442 INFO L125 PetriNetUnfolderBase]: For 2081/2136 co-relation queries the response was YES. [2025-02-08 08:35:59,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3042 conditions, 862 events. 482/862 cut-off events. For 2081/2136 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 4685 event pairs, 100 based on Foata normal form. 30/863 useless extension candidates. Maximal degree in co-relation 3025. Up to 217 conditions per place. [2025-02-08 08:35:59,446 INFO L140 encePairwiseOnDemand]: 31/36 looper letters, 26 selfloop transitions, 1 changer transitions 85/116 dead transitions. [2025-02-08 08:35:59,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 116 transitions, 883 flow [2025-02-08 08:35:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 08:35:59,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 08:35:59,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 142 transitions. [2025-02-08 08:35:59,448 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5634920634920635 [2025-02-08 08:35:59,448 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 310 flow. Second operand 7 states and 142 transitions. [2025-02-08 08:35:59,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 116 transitions, 883 flow [2025-02-08 08:35:59,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 116 transitions, 881 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-02-08 08:35:59,453 INFO L231 Difference]: Finished difference. Result has 70 places, 28 transitions, 153 flow [2025-02-08 08:35:59,454 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=153, PETRI_PLACES=70, PETRI_TRANSITIONS=28} [2025-02-08 08:35:59,454 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 31 predicate places. [2025-02-08 08:35:59,454 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 28 transitions, 153 flow [2025-02-08 08:35:59,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,455 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:35:59,455 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] [2025-02-08 08:35:59,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-08 08:35:59,455 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 08:35:59,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:35:59,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1501143917, now seen corresponding path program 3 times [2025-02-08 08:35:59,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:35:59,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157588681] [2025-02-08 08:35:59,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-08 08:35:59,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:35:59,460 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 22 statements into 1 equivalence classes. [2025-02-08 08:35:59,463 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 08:35:59,464 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-08 08:35:59,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:35:59,501 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 08:35:59,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:35:59,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157588681] [2025-02-08 08:35:59,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157588681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:35:59,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:35:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 08:35:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323181964] [2025-02-08 08:35:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:35:59,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 08:35:59,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:35:59,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 08:35:59,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 08:35:59,505 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 36 [2025-02-08 08:35:59,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 28 transitions, 153 flow. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:35:59,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 36 [2025-02-08 08:35:59,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:35:59,581 INFO L124 PetriNetUnfolderBase]: 133/254 cut-off events. [2025-02-08 08:35:59,581 INFO L125 PetriNetUnfolderBase]: For 900/900 co-relation queries the response was YES. [2025-02-08 08:35:59,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 997 conditions, 254 events. 133/254 cut-off events. For 900/900 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 950 event pairs, 35 based on Foata normal form. 1/252 useless extension candidates. Maximal degree in co-relation 975. Up to 98 conditions per place. [2025-02-08 08:35:59,582 INFO L140 encePairwiseOnDemand]: 32/36 looper letters, 0 selfloop transitions, 0 changer transitions 54/54 dead transitions. [2025-02-08 08:35:59,582 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 54 transitions, 400 flow [2025-02-08 08:35:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:35:59,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:35:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2025-02-08 08:35:59,584 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49444444444444446 [2025-02-08 08:35:59,584 INFO L175 Difference]: Start difference. First operand has 70 places, 28 transitions, 153 flow. Second operand 5 states and 89 transitions. [2025-02-08 08:35:59,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 54 transitions, 400 flow [2025-02-08 08:35:59,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 54 transitions, 303 flow, removed 13 selfloop flow, removed 14 redundant places. [2025-02-08 08:35:59,585 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2025-02-08 08:35:59,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2025-02-08 08:35:59,586 INFO L279 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2025-02-08 08:35:59,586 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2025-02-08 08:35:59,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:35:59,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2025-02-08 08:35:59,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2025-02-08 08:35:59,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 08:35:59,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 08:35:59,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 08:35:59,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-08 08:35:59,590 INFO L422 BasicCegarLoop]: Path program histogram: [6, 3, 2] [2025-02-08 08:35:59,592 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:35:59,592 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:35:59,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:35:59 BasicIcfg [2025-02-08 08:35:59,596 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:35:59,597 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:35:59,597 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:35:59,597 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:35:59,598 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:35:54" (3/4) ... [2025-02-08 08:35:59,600 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:35:59,602 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-02-08 08:35:59,602 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-02-08 08:35:59,602 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-02-08 08:35:59,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2025-02-08 08:35:59,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-02-08 08:35:59,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-02-08 08:35:59,607 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 08:35:59,666 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:35:59,667 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:35:59,667 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:35:59,667 INFO L158 Benchmark]: Toolchain (without parser) took 5744.85ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 104.8MB in the beginning and 220.2MB in the end (delta: -115.4MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2025-02-08 08:35:59,667 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:59,668 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.57ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 93.2MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:35:59,668 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.03ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:35:59,668 INFO L158 Benchmark]: Boogie Preprocessor took 21.96ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:59,669 INFO L158 Benchmark]: IcfgBuilder took 550.20ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 46.1MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-08 08:35:59,669 INFO L158 Benchmark]: TraceAbstraction took 4900.63ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 45.3MB in the beginning and 223.6MB in the end (delta: -178.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:59,669 INFO L158 Benchmark]: Witness Printer took 69.70ms. Allocated memory is still 318.8MB. Free memory was 223.6MB in the beginning and 220.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:35:59,670 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 115.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.57ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 93.2MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.03ms. Allocated memory is still 142.6MB. Free memory was 93.2MB in the beginning and 91.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.96ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 90.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 550.20ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 46.1MB in the end (delta: 43.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4900.63ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 45.3MB in the beginning and 223.6MB in the end (delta: -178.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 69.70ms. Allocated memory is still 318.8MB. Free memory was 223.6MB in the beginning and 220.2MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 60]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 55 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 348 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 343 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1698 IncrementalHoareTripleChecker+Invalid, 1715 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 8 mSDtfsCounter, 1698 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=9, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 236 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 1662 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:35:59,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE