./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-theta/wsc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-theta/wsc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:26:44,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:26:44,843 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:26:44,876 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:26:44,877 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:26:44,925 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:26:44,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:26:44,926 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:26:44,927 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:26:44,928 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:26:44,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:26:44,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:26:44,930 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:26:44,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:26:44,932 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:26:44,932 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:26:44,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:26:44,933 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:26:44,933 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:26:44,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:26:44,934 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:26:44,938 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:26:44,939 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:26:44,939 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:26:44,939 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:26:44,939 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:26:44,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:26:44,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:26:44,940 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:26:44,940 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:26:44,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:26:44,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:26:44,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:26:44,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:26:44,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:26:44,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:26:44,942 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:26:44,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:26:44,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:26:44,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:26:44,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:26:44,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:26:44,945 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cea92baab62ba0c35a952a0cf718b682864c9b4a52d803c2eb370964dcb75f16 [2024-11-10 18:26:45,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:26:45,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:26:45,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:26:45,266 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:26:45,267 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:26:45,268 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/wsc.i [2024-11-10 18:26:46,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:26:47,119 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:26:47,120 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/wsc.i [2024-11-10 18:26:47,141 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52e09b334/9f1dabbc508d4cde86a288f59fccdb01/FLAGe5fe6fac6 [2024-11-10 18:26:47,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52e09b334/9f1dabbc508d4cde86a288f59fccdb01 [2024-11-10 18:26:47,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:26:47,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:26:47,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:26:47,162 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:26:47,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:26:47,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6a037 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47, skipping insertion in model container [2024-11-10 18:26:47,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,215 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:26:47,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:26:47,671 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:26:47,728 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:26:47,771 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:26:47,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47 WrapperNode [2024-11-10 18:26:47,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:26:47,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:26:47,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:26:47,774 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:26:47,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,803 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,864 INFO L138 Inliner]: procedures = 171, calls = 27, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 124 [2024-11-10 18:26:47,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:26:47,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:26:47,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:26:47,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:26:47,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,890 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,905 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-11-10 18:26:47,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,930 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:26:47,952 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:26:47,956 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:26:47,956 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:26:47,959 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (1/1) ... [2024-11-10 18:26:47,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:26:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:26:47,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:26:47,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:26:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:26:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure f0 [2024-11-10 18:26:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure f0 [2024-11-10 18:26:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-10 18:26:48,050 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-10 18:26:48,050 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-10 18:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure f3 [2024-11-10 18:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure f3 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure f4 [2024-11-10 18:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure f4 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure f5 [2024-11-10 18:26:48,051 INFO L138 BoogieDeclarations]: Found implementation of procedure f5 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:26:48,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:26:48,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:26:48,053 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:26:48,191 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:26:48,195 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:26:48,420 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:26:48,420 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:26:48,551 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:26:48,551 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:26:48,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:26:48 BoogieIcfgContainer [2024-11-10 18:26:48,551 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:26:48,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:26:48,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:26:48,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:26:48,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:26:47" (1/3) ... [2024-11-10 18:26:48,559 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f274ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:26:48, skipping insertion in model container [2024-11-10 18:26:48,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:26:47" (2/3) ... [2024-11-10 18:26:48,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f274ac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:26:48, skipping insertion in model container [2024-11-10 18:26:48,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:26:48" (3/3) ... [2024-11-10 18:26:48,561 INFO L112 eAbstractionObserver]: Analyzing ICFG wsc.i [2024-11-10 18:26:48,581 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:26:48,581 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:26:48,582 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:26:48,660 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-11-10 18:26:48,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 55 transitions, 152 flow [2024-11-10 18:26:48,754 INFO L124 PetriNetUnfolderBase]: 1/49 cut-off events. [2024-11-10 18:26:48,754 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 18:26:48,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74 conditions, 49 events. 1/49 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-10 18:26:48,760 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 55 transitions, 152 flow [2024-11-10 18:26:48,765 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 48 transitions, 132 flow [2024-11-10 18:26:48,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:26:48,783 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;@6b6c64c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:26:48,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-10 18:26:48,809 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:26:48,810 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2024-11-10 18:26:48,810 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 18:26:48,810 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:48,811 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:48,813 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:26:48,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:48,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1093861936, now seen corresponding path program 1 times [2024-11-10 18:26:48,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:48,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920661664] [2024-11-10 18:26:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:49,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:49,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920661664] [2024-11-10 18:26:49,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920661664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:49,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:49,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:26:49,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261727194] [2024-11-10 18:26:49,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:49,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:26:49,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:26:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:26:49,435 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:26:49,438 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 48 transitions, 132 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:26:49,438 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:49,438 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:26:49,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:26:54,481 INFO L124 PetriNetUnfolderBase]: 45933/58345 cut-off events. [2024-11-10 18:26:54,483 INFO L125 PetriNetUnfolderBase]: For 4811/4811 co-relation queries the response was YES. [2024-11-10 18:26:54,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120889 conditions, 58345 events. 45933/58345 cut-off events. For 4811/4811 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 286326 event pairs, 31565 based on Foata normal form. 190/58534 useless extension candidates. Maximal degree in co-relation 117357. Up to 58167 conditions per place. [2024-11-10 18:26:55,062 INFO L140 encePairwiseOnDemand]: 46/55 looper letters, 51 selfloop transitions, 3 changer transitions 0/59 dead transitions. [2024-11-10 18:26:55,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 59 transitions, 274 flow [2024-11-10 18:26:55,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:26:55,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:26:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-10 18:26:55,077 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5818181818181818 [2024-11-10 18:26:55,079 INFO L175 Difference]: Start difference. First operand has 66 places, 48 transitions, 132 flow. Second operand 3 states and 96 transitions. [2024-11-10 18:26:55,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 59 transitions, 274 flow [2024-11-10 18:26:55,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 59 transitions, 242 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-10 18:26:55,136 INFO L231 Difference]: Finished difference. Result has 54 places, 46 transitions, 125 flow [2024-11-10 18:26:55,139 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=54, PETRI_TRANSITIONS=46} [2024-11-10 18:26:55,143 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -12 predicate places. [2024-11-10 18:26:55,143 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 46 transitions, 125 flow [2024-11-10 18:26:55,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:26:55,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:55,144 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:55,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:26:55,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:26:55,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:55,145 INFO L85 PathProgramCache]: Analyzing trace with hash -209624262, now seen corresponding path program 2 times [2024-11-10 18:26:55,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:55,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328101147] [2024-11-10 18:26:55,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:55,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:55,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:55,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:55,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328101147] [2024-11-10 18:26:55,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328101147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:55,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:55,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:26:55,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378619355] [2024-11-10 18:26:55,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:55,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:26:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:55,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:26:55,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:26:55,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:26:55,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 46 transitions, 125 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:26:55,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:55,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:26:55,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:26:58,030 INFO L124 PetriNetUnfolderBase]: 35904/47104 cut-off events. [2024-11-10 18:26:58,031 INFO L125 PetriNetUnfolderBase]: For 10101/10101 co-relation queries the response was YES. [2024-11-10 18:26:58,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103694 conditions, 47104 events. 35904/47104 cut-off events. For 10101/10101 co-relation queries the response was YES. Maximal size of possible extension queue 1428. Compared 251800 event pairs, 10899 based on Foata normal form. 3802/50905 useless extension candidates. Maximal degree in co-relation 26724. Up to 32217 conditions per place. [2024-11-10 18:26:58,243 INFO L140 encePairwiseOnDemand]: 49/55 looper letters, 68 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2024-11-10 18:26:58,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 351 flow [2024-11-10 18:26:58,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:26:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:26:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 110 transitions. [2024-11-10 18:26:58,245 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 18:26:58,245 INFO L175 Difference]: Start difference. First operand has 54 places, 46 transitions, 125 flow. Second operand 3 states and 110 transitions. [2024-11-10 18:26:58,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 351 flow [2024-11-10 18:26:58,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:26:58,248 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 164 flow [2024-11-10 18:26:58,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=164, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2024-11-10 18:26:58,249 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -9 predicate places. [2024-11-10 18:26:58,249 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 164 flow [2024-11-10 18:26:58,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:26:58,250 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:58,250 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:58,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:26:58,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:26:58,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash 506494622, now seen corresponding path program 3 times [2024-11-10 18:26:58,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:58,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661316819] [2024-11-10 18:26:58,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:58,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:58,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661316819] [2024-11-10 18:26:58,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661316819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:58,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:58,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:26:58,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042647898] [2024-11-10 18:26:58,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:58,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:26:58,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:26:58,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:26:58,336 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:26:58,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:26:58,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:58,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:26:58,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:27:01,406 INFO L124 PetriNetUnfolderBase]: 42168/55917 cut-off events. [2024-11-10 18:27:01,406 INFO L125 PetriNetUnfolderBase]: For 31411/31411 co-relation queries the response was YES. [2024-11-10 18:27:01,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134399 conditions, 55917 events. 42168/55917 cut-off events. For 31411/31411 co-relation queries the response was YES. Maximal size of possible extension queue 1637. Compared 308973 event pairs, 21775 based on Foata normal form. 1086/57002 useless extension candidates. Maximal degree in co-relation 28306. Up to 33365 conditions per place. [2024-11-10 18:27:01,641 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 68 selfloop transitions, 2 changer transitions 1/76 dead transitions. [2024-11-10 18:27:01,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 76 transitions, 395 flow [2024-11-10 18:27:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:27:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:27:01,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-10 18:27:01,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6181818181818182 [2024-11-10 18:27:01,643 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 164 flow. Second operand 3 states and 102 transitions. [2024-11-10 18:27:01,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 76 transitions, 395 flow [2024-11-10 18:27:01,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 76 transitions, 367 flow, removed 7 selfloop flow, removed 2 redundant places. [2024-11-10 18:27:01,694 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 158 flow [2024-11-10 18:27:01,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2024-11-10 18:27:01,695 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -8 predicate places. [2024-11-10 18:27:01,695 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 158 flow [2024-11-10 18:27:01,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:01,696 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:27:01,696 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:27:01,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:27:01,696 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:27:01,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:27:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1001800032, now seen corresponding path program 4 times [2024-11-10 18:27:01,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:27:01,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557403022] [2024-11-10 18:27:01,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:27:01,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:27:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:27:01,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:27:01,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:27:01,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557403022] [2024-11-10 18:27:01,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557403022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:27:01,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:27:01,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:27:01,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809708297] [2024-11-10 18:27:01,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:27:01,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:27:01,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:27:01,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:27:01,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:27:01,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:27:01,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:01,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:27:01,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:27:01,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:27:05,140 INFO L124 PetriNetUnfolderBase]: 48000/64389 cut-off events. [2024-11-10 18:27:05,141 INFO L125 PetriNetUnfolderBase]: For 28485/28485 co-relation queries the response was YES. [2024-11-10 18:27:05,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152343 conditions, 64389 events. 48000/64389 cut-off events. For 28485/28485 co-relation queries the response was YES. Maximal size of possible extension queue 1915. Compared 379429 event pairs, 21654 based on Foata normal form. 1850/66238 useless extension candidates. Maximal degree in co-relation 68294. Up to 34165 conditions per place. [2024-11-10 18:27:05,372 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 73 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2024-11-10 18:27:05,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 80 transitions, 404 flow [2024-11-10 18:27:05,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:27:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:27:05,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 103 transitions. [2024-11-10 18:27:05,375 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6242424242424243 [2024-11-10 18:27:05,375 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 158 flow. Second operand 3 states and 103 transitions. [2024-11-10 18:27:05,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 80 transitions, 404 flow [2024-11-10 18:27:05,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 80 transitions, 401 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:27:05,818 INFO L231 Difference]: Finished difference. Result has 60 places, 51 transitions, 168 flow [2024-11-10 18:27:05,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=60, PETRI_TRANSITIONS=51} [2024-11-10 18:27:05,819 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -6 predicate places. [2024-11-10 18:27:05,819 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 51 transitions, 168 flow [2024-11-10 18:27:05,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:05,819 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:27:05,820 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:27:05,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:27:05,820 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:27:05,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:27:05,821 INFO L85 PathProgramCache]: Analyzing trace with hash 144986376, now seen corresponding path program 5 times [2024-11-10 18:27:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:27:05,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678476526] [2024-11-10 18:27:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:27:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:27:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:27:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:27:05,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:27:05,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678476526] [2024-11-10 18:27:05,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678476526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:27:05,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:27:05,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:27:05,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391338370] [2024-11-10 18:27:05,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:27:05,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:27:05,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:27:05,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:27:05,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:27:05,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:27:05,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 51 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:05,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:27:05,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:27:05,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:27:09,525 INFO L124 PetriNetUnfolderBase]: 52177/70768 cut-off events. [2024-11-10 18:27:09,525 INFO L125 PetriNetUnfolderBase]: For 37977/37977 co-relation queries the response was YES. [2024-11-10 18:27:09,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176471 conditions, 70768 events. 52177/70768 cut-off events. For 37977/37977 co-relation queries the response was YES. Maximal size of possible extension queue 2181. Compared 426606 event pairs, 30812 based on Foata normal form. 1994/72761 useless extension candidates. Maximal degree in co-relation 66406. Up to 47081 conditions per place. [2024-11-10 18:27:09,768 INFO L140 encePairwiseOnDemand]: 52/55 looper letters, 62 selfloop transitions, 2 changer transitions 9/78 dead transitions. [2024-11-10 18:27:09,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 78 transitions, 410 flow [2024-11-10 18:27:09,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:27:09,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:27:09,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-10 18:27:09,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-10 18:27:09,770 INFO L175 Difference]: Start difference. First operand has 60 places, 51 transitions, 168 flow. Second operand 3 states and 100 transitions. [2024-11-10 18:27:09,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 78 transitions, 410 flow [2024-11-10 18:27:09,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 406 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:27:09,887 INFO L231 Difference]: Finished difference. Result has 62 places, 48 transitions, 160 flow [2024-11-10 18:27:09,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=62, PETRI_TRANSITIONS=48} [2024-11-10 18:27:09,890 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2024-11-10 18:27:09,892 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 48 transitions, 160 flow [2024-11-10 18:27:09,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:09,893 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:27:09,893 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:27:09,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:27:09,893 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 5 more)] === [2024-11-10 18:27:09,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:27:09,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1051604292, now seen corresponding path program 6 times [2024-11-10 18:27:09,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:27:09,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140464192] [2024-11-10 18:27:09,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:27:09,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:27:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:27:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:27:09,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:27:09,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140464192] [2024-11-10 18:27:09,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140464192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:27:09,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:27:09,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:27:09,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175914584] [2024-11-10 18:27:09,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:27:09,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:27:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:27:09,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:27:09,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:27:09,992 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 55 [2024-11-10 18:27:09,992 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 48 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:09,992 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:27:09,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 55 [2024-11-10 18:27:09,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:27:12,100 INFO L124 PetriNetUnfolderBase]: 27255/37556 cut-off events. [2024-11-10 18:27:12,100 INFO L125 PetriNetUnfolderBase]: For 24736/24736 co-relation queries the response was YES. [2024-11-10 18:27:12,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98176 conditions, 37556 events. 27255/37556 cut-off events. For 24736/24736 co-relation queries the response was YES. Maximal size of possible extension queue 1421. Compared 220219 event pairs, 13951 based on Foata normal form. 1136/38691 useless extension candidates. Maximal degree in co-relation 43133. Up to 20315 conditions per place. [2024-11-10 18:27:12,214 INFO L140 encePairwiseOnDemand]: 53/55 looper letters, 0 selfloop transitions, 0 changer transitions 62/62 dead transitions. [2024-11-10 18:27:12,215 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 62 transitions, 337 flow [2024-11-10 18:27:12,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:27:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:27:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-10 18:27:12,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5515151515151515 [2024-11-10 18:27:12,216 INFO L175 Difference]: Start difference. First operand has 62 places, 48 transitions, 160 flow. Second operand 3 states and 91 transitions. [2024-11-10 18:27:12,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 62 transitions, 337 flow [2024-11-10 18:27:12,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 62 transitions, 330 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 18:27:12,437 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-11-10 18:27:12,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=139, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-11-10 18:27:12,437 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, -10 predicate places. [2024-11-10 18:27:12,438 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-11-10 18:27:12,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:27:12,440 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (7 of 8 remaining) [2024-11-10 18:27:12,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 8 remaining) [2024-11-10 18:27:12,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 8 remaining) [2024-11-10 18:27:12,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2024-11-10 18:27:12,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-11-10 18:27:12,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-11-10 18:27:12,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-11-10 18:27:12,442 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-11-10 18:27:12,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:27:12,443 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-11-10 18:27:12,448 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:27:12,449 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:27:12,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:27:12 BasicIcfg [2024-11-10 18:27:12,454 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:27:12,455 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:27:12,455 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:27:12,455 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:27:12,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:26:48" (3/4) ... [2024-11-10 18:27:12,457 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f0 [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f3 [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f4 [2024-11-10 18:27:12,460 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f5 [2024-11-10 18:27:12,464 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2024-11-10 18:27:12,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-10 18:27:12,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2024-11-10 18:27:12,465 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-10 18:27:12,555 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:27:12,556 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:27:12,556 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:27:12,557 INFO L158 Benchmark]: Toolchain (without parser) took 25396.02ms. Allocated memory was 201.3MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 133.4MB in the beginning and 12.3GB in the end (delta: -12.2GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-10 18:27:12,557 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:27:12,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.46ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 110.3MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-10 18:27:12,558 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.38ms. Allocated memory is still 201.3MB. Free memory was 110.3MB in the beginning and 172.1MB in the end (delta: -61.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2024-11-10 18:27:12,558 INFO L158 Benchmark]: Boogie Preprocessor took 86.49ms. Allocated memory is still 201.3MB. Free memory was 172.1MB in the beginning and 169.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:27:12,558 INFO L158 Benchmark]: IcfgBuilder took 599.04ms. Allocated memory is still 201.3MB. Free memory was 169.2MB in the beginning and 134.4MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-10 18:27:12,559 INFO L158 Benchmark]: TraceAbstraction took 23900.95ms. Allocated memory was 201.3MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 133.6MB in the beginning and 12.3GB in the end (delta: -12.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. [2024-11-10 18:27:12,559 INFO L158 Benchmark]: Witness Printer took 101.32ms. Allocated memory is still 14.1GB. Free memory was 12.3GB in the beginning and 12.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:27:12,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory was 74.6MB in the beginning and 74.5MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.46ms. Allocated memory is still 201.3MB. Free memory was 133.1MB in the beginning and 110.3MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.38ms. Allocated memory is still 201.3MB. Free memory was 110.3MB in the beginning and 172.1MB in the end (delta: -61.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.49ms. Allocated memory is still 201.3MB. Free memory was 172.1MB in the beginning and 169.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 599.04ms. Allocated memory is still 201.3MB. Free memory was 169.2MB in the beginning and 134.4MB in the end (delta: 34.8MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 23900.95ms. Allocated memory was 201.3MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 133.6MB in the beginning and 12.3GB in the end (delta: -12.2GB). Peak memory consumption was 2.2GB. Max. memory is 16.1GB. * Witness Printer took 101.32ms. Allocated memory is still 14.1GB. Free memory was 12.3GB in the beginning and 12.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 750]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 788]: 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 13 procedures, 89 locations, 8 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: 23.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 119 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 564 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 564 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=4, InterpolantAutomatonStates: 18, 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, 0.7s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 18:27:12,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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