./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-races/race-1_1-join.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/ldv-races/race-1_1-join.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 ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:03:21,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:03:21,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:03:21,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:03:21,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:03:21,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:03:21,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:03:21,493 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:03:21,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:03:21,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:03:21,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:03:21,495 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:03:21,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:03:21,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:03:21,497 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:03:21,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:03:21,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:03:21,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:03:21,499 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:03:21,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:03:21,499 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:03:21,503 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:03:21,503 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:03:21,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:03:21,504 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:03:21,504 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:03:21,504 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:03:21,504 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:03:21,505 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:03:21,505 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:03:21,505 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:03:21,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:03:21,506 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:03:21,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:03:21,506 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:03:21,507 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:03:21,507 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:03:21,507 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:03:21,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:03:21,510 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:03:21,510 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:03:21,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:03:21,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab598119c4148bae0d8b880ae1fca3b30d4f7d9a1b46bb07e7f3565fa04f9e72 [2024-11-10 18:03:21,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:03:21,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:03:21,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:03:21,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:03:21,805 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:03:21,806 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_1-join.i [2024-11-10 18:03:23,290 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:03:23,595 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:03:23,596 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_1-join.i [2024-11-10 18:03:23,622 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6f89afd/ac2eb08ad2054f6cb6f89c3f6afd8127/FLAG0d07d6932 [2024-11-10 18:03:23,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc6f89afd/ac2eb08ad2054f6cb6f89c3f6afd8127 [2024-11-10 18:03:23,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:03:23,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:03:23,648 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:23,649 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:03:23,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:03:23,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:23" (1/1) ... [2024-11-10 18:03:23,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c694432 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:23, skipping insertion in model container [2024-11-10 18:03:23,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:03:23" (1/1) ... [2024-11-10 18:03:23,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:03:24,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:24,427 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:03:24,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:03:24,646 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:03:24,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24 WrapperNode [2024-11-10 18:03:24,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:03:24,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:03:24,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:03:24,649 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:03:24,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,771 INFO L138 Inliner]: procedures = 481, calls = 25, calls flagged for inlining = 9, calls inlined = 12, statements flattened = 98 [2024-11-10 18:03:24,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:03:24,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:03:24,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:03:24,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:03:24,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,791 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,816 INFO L175 MemorySlicer]: Split 8 memory accesses to 3 slices as follows [2, 5, 1]. 63 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-11-10 18:03:24,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,832 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,837 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,840 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:03:24,860 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:03:24,860 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:03:24,860 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:03:24,861 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (1/1) ... [2024-11-10 18:03:24,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:03:24,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:03:24,900 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 18:03:24,902 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 18:03:24,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:03:24,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 18:03:24,946 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:03:24,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:03:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:03:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:03:24,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:03:24,948 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 18:03:25,204 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:03:25,206 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:03:25,387 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:03:25,388 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:03:25,495 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:03:25,495 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:03:25,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:03:25 BoogieIcfgContainer [2024-11-10 18:03:25,496 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:03:25,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:03:25,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:03:25,502 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:03:25,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:03:23" (1/3) ... [2024-11-10 18:03:25,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bba138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:03:25, skipping insertion in model container [2024-11-10 18:03:25,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:03:24" (2/3) ... [2024-11-10 18:03:25,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bba138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:03:25, skipping insertion in model container [2024-11-10 18:03:25,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:03:25" (3/3) ... [2024-11-10 18:03:25,506 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2024-11-10 18:03:25,523 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:03:25,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-10 18:03:25,524 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:03:25,562 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 18:03:25,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 47 places, 53 transitions, 113 flow [2024-11-10 18:03:25,628 INFO L124 PetriNetUnfolderBase]: 9/58 cut-off events. [2024-11-10 18:03:25,629 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:03:25,632 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 58 events. 9/58 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 119 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 25. Up to 3 conditions per place. [2024-11-10 18:03:25,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 47 places, 53 transitions, 113 flow [2024-11-10 18:03:25,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 52 transitions, 110 flow [2024-11-10 18:03:25,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:03:25,657 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;@79f0355e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:03:25,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 18:03:25,662 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:03:25,666 INFO L124 PetriNetUnfolderBase]: 2/10 cut-off events. [2024-11-10 18:03:25,666 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:03:25,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:25,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 18:03:25,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:25,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:25,678 INFO L85 PathProgramCache]: Analyzing trace with hash 8227438, now seen corresponding path program 1 times [2024-11-10 18:03:25,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:25,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132274283] [2024-11-10 18:03:25,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:25,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:26,192 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 18:03:26,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:26,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132274283] [2024-11-10 18:03:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132274283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:26,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:26,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323496460] [2024-11-10 18:03:26,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:26,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:26,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:26,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:26,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:26,241 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 53 [2024-11-10 18:03:26,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 52 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 18:03:26,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:26,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 53 [2024-11-10 18:03:26,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:26,349 INFO L124 PetriNetUnfolderBase]: 37/123 cut-off events. [2024-11-10 18:03:26,349 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 18:03:26,350 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 123 events. 37/123 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 471 event pairs, 36 based on Foata normal form. 13/124 useless extension candidates. Maximal degree in co-relation 187. Up to 96 conditions per place. [2024-11-10 18:03:26,352 INFO L140 encePairwiseOnDemand]: 42/53 looper letters, 18 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2024-11-10 18:03:26,355 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 116 flow [2024-11-10 18:03:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 71 transitions. [2024-11-10 18:03:26,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44654088050314467 [2024-11-10 18:03:26,375 INFO L175 Difference]: Start difference. First operand has 46 places, 52 transitions, 110 flow. Second operand 3 states and 71 transitions. [2024-11-10 18:03:26,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 116 flow [2024-11-10 18:03:26,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 112 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:26,382 INFO L231 Difference]: Finished difference. Result has 33 places, 31 transitions, 76 flow [2024-11-10 18:03:26,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=33, PETRI_TRANSITIONS=31} [2024-11-10 18:03:26,390 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -13 predicate places. [2024-11-10 18:03:26,390 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 31 transitions, 76 flow [2024-11-10 18:03:26,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 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 18:03:26,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:26,392 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:26,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:03:26,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:26,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:26,394 INFO L85 PathProgramCache]: Analyzing trace with hash -396178031, now seen corresponding path program 1 times [2024-11-10 18:03:26,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:26,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44124716] [2024-11-10 18:03:26,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:26,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:26,580 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 18:03:26,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:26,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44124716] [2024-11-10 18:03:26,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44124716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:26,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:26,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 18:03:26,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811640599] [2024-11-10 18:03:26,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:26,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:03:26,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:26,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:03:26,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:03:26,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 53 [2024-11-10 18:03:26,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 31 transitions, 76 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:03:26,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:26,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 53 [2024-11-10 18:03:26,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:26,739 INFO L124 PetriNetUnfolderBase]: 18/72 cut-off events. [2024-11-10 18:03:26,739 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 18:03:26,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 72 events. 18/72 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 192 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 103. Up to 31 conditions per place. [2024-11-10 18:03:26,741 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 31 selfloop transitions, 3 changer transitions 3/47 dead transitions. [2024-11-10 18:03:26,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 47 transitions, 182 flow [2024-11-10 18:03:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:03:26,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:03:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-10 18:03:26,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-10 18:03:26,744 INFO L175 Difference]: Start difference. First operand has 33 places, 31 transitions, 76 flow. Second operand 4 states and 106 transitions. [2024-11-10 18:03:26,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 47 transitions, 182 flow [2024-11-10 18:03:26,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 47 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:26,749 INFO L231 Difference]: Finished difference. Result has 36 places, 31 transitions, 79 flow [2024-11-10 18:03:26,750 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=79, PETRI_PLACES=36, PETRI_TRANSITIONS=31} [2024-11-10 18:03:26,750 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -10 predicate places. [2024-11-10 18:03:26,751 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 79 flow [2024-11-10 18:03:26,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:03:26,751 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:26,751 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:26,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:03:26,752 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:26,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1189482570, now seen corresponding path program 1 times [2024-11-10 18:03:26,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:26,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996042717] [2024-11-10 18:03:26,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:26,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:26,863 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 18:03:26,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:26,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996042717] [2024-11-10 18:03:26,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996042717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:26,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:26,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:03:26,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388105943] [2024-11-10 18:03:26,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:26,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:26,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:26,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:26,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:26,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-11-10 18:03:26,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 18:03:26,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:26,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-11-10 18:03:26,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:26,944 INFO L124 PetriNetUnfolderBase]: 18/74 cut-off events. [2024-11-10 18:03:26,945 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-11-10 18:03:26,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 74 events. 18/74 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 187 event pairs, 12 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 70. Up to 41 conditions per place. [2024-11-10 18:03:26,946 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 22 selfloop transitions, 2 changer transitions 6/38 dead transitions. [2024-11-10 18:03:26,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 151 flow [2024-11-10 18:03:26,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:26,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-10 18:03:26,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48427672955974843 [2024-11-10 18:03:26,951 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 79 flow. Second operand 3 states and 77 transitions. [2024-11-10 18:03:26,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 151 flow [2024-11-10 18:03:26,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 38 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:03:26,955 INFO L231 Difference]: Finished difference. Result has 37 places, 26 transitions, 72 flow [2024-11-10 18:03:26,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=37, PETRI_TRANSITIONS=26} [2024-11-10 18:03:26,956 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2024-11-10 18:03:26,958 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 26 transitions, 72 flow [2024-11-10 18:03:26,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 18:03:26,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:26,958 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:26,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:03:26,959 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:26,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash 785173501, now seen corresponding path program 1 times [2024-11-10 18:03:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707858569] [2024-11-10 18:03:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:26,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:27,087 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 18:03:27,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:27,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707858569] [2024-11-10 18:03:27,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707858569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:27,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:27,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:03:27,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875195686] [2024-11-10 18:03:27,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:27,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:27,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:27,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:27,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:27,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-11-10 18:03:27,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 26 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:27,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:27,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-11-10 18:03:27,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:27,169 INFO L124 PetriNetUnfolderBase]: 18/59 cut-off events. [2024-11-10 18:03:27,170 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-11-10 18:03:27,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 59 events. 18/59 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 12 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 94. Up to 40 conditions per place. [2024-11-10 18:03:27,171 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 18 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-11-10 18:03:27,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 26 transitions, 125 flow [2024-11-10 18:03:27,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:27,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:27,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 69 transitions. [2024-11-10 18:03:27,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4339622641509434 [2024-11-10 18:03:27,173 INFO L175 Difference]: Start difference. First operand has 37 places, 26 transitions, 72 flow. Second operand 3 states and 69 transitions. [2024-11-10 18:03:27,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 26 transitions, 125 flow [2024-11-10 18:03:27,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 94 flow, removed 1 selfloop flow, removed 7 redundant places. [2024-11-10 18:03:27,176 INFO L231 Difference]: Finished difference. Result has 27 places, 23 transitions, 52 flow [2024-11-10 18:03:27,176 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=27, PETRI_TRANSITIONS=23} [2024-11-10 18:03:27,177 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -19 predicate places. [2024-11-10 18:03:27,177 INFO L471 AbstractCegarLoop]: Abstraction has has 27 places, 23 transitions, 52 flow [2024-11-10 18:03:27,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:27,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:27,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:27,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:03:27,178 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:27,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:27,181 INFO L85 PathProgramCache]: Analyzing trace with hash -916303637, now seen corresponding path program 1 times [2024-11-10 18:03:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:27,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123625226] [2024-11-10 18:03:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:27,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:27,366 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 18:03:27,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123625226] [2024-11-10 18:03:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123625226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:27,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:27,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355803555] [2024-11-10 18:03:27,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:27,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:27,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:27,373 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-11-10 18:03:27,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 18:03:27,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:27,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-11-10 18:03:27,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:27,431 INFO L124 PetriNetUnfolderBase]: 15/54 cut-off events. [2024-11-10 18:03:27,431 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 18:03:27,432 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 54 events. 15/54 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 90 event pairs, 10 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 31. Up to 34 conditions per place. [2024-11-10 18:03:27,433 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 19 selfloop transitions, 2 changer transitions 0/27 dead transitions. [2024-11-10 18:03:27,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 27 transitions, 106 flow [2024-11-10 18:03:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-10 18:03:27,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2024-11-10 18:03:27,434 INFO L175 Difference]: Start difference. First operand has 27 places, 23 transitions, 52 flow. Second operand 3 states and 70 transitions. [2024-11-10 18:03:27,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 27 transitions, 106 flow [2024-11-10 18:03:27,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 27 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:27,435 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2024-11-10 18:03:27,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-11-10 18:03:27,436 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -20 predicate places. [2024-11-10 18:03:27,436 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2024-11-10 18:03:27,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 18:03:27,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:27,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:27,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:03:27,440 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:27,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:27,441 INFO L85 PathProgramCache]: Analyzing trace with hash -888511518, now seen corresponding path program 1 times [2024-11-10 18:03:27,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:27,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543824822] [2024-11-10 18:03:27,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:27,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:27,558 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 18:03:27,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:27,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543824822] [2024-11-10 18:03:27,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543824822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:27,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:27,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:27,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970535009] [2024-11-10 18:03:27,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:27,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:03:27,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:27,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:03:27,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:03:27,569 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-11-10 18:03:27,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 18:03:27,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:27,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-11-10 18:03:27,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:27,617 INFO L124 PetriNetUnfolderBase]: 15/53 cut-off events. [2024-11-10 18:03:27,618 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-10 18:03:27,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 53 events. 15/53 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 10 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 68. Up to 34 conditions per place. [2024-11-10 18:03:27,619 INFO L140 encePairwiseOnDemand]: 50/53 looper letters, 19 selfloop transitions, 2 changer transitions 0/26 dead transitions. [2024-11-10 18:03:27,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 26 transitions, 100 flow [2024-11-10 18:03:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:03:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:03:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 70 transitions. [2024-11-10 18:03:27,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44025157232704404 [2024-11-10 18:03:27,622 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 70 transitions. [2024-11-10 18:03:27,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 26 transitions, 100 flow [2024-11-10 18:03:27,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 96 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:27,624 INFO L231 Difference]: Finished difference. Result has 25 places, 21 transitions, 48 flow [2024-11-10 18:03:27,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=48, PETRI_PLACES=25, PETRI_TRANSITIONS=21} [2024-11-10 18:03:27,625 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -21 predicate places. [2024-11-10 18:03:27,627 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 21 transitions, 48 flow [2024-11-10 18:03:27,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 18:03:27,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:03:27,628 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] [2024-11-10 18:03:27,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 18:03:27,628 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread1Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (and 6 more)] === [2024-11-10 18:03:27,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:03:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1239433790, now seen corresponding path program 1 times [2024-11-10 18:03:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:03:27,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59051677] [2024-11-10 18:03:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:03:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:03:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:03:27,888 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 18:03:27,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:03:27,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59051677] [2024-11-10 18:03:27,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59051677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:03:27,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:03:27,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:03:27,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001599137] [2024-11-10 18:03:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:03:27,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:03:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:03:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:03:27,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:03:27,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 53 [2024-11-10 18:03:27,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 48 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:27,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:03:27,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 53 [2024-11-10 18:03:27,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:03:27,969 INFO L124 PetriNetUnfolderBase]: 15/52 cut-off events. [2024-11-10 18:03:27,969 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-10 18:03:27,970 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 52 events. 15/52 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 89 event pairs, 10 based on Foata normal form. 1/53 useless extension candidates. Maximal degree in co-relation 68. Up to 33 conditions per place. [2024-11-10 18:03:27,970 INFO L140 encePairwiseOnDemand]: 49/53 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2024-11-10 18:03:27,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 98 flow [2024-11-10 18:03:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:03:27,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:03:27,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2024-11-10 18:03:27,974 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4056603773584906 [2024-11-10 18:03:27,974 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 48 flow. Second operand 4 states and 86 transitions. [2024-11-10 18:03:27,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 98 flow [2024-11-10 18:03:27,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 25 transitions, 94 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:03:27,975 INFO L231 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2024-11-10 18:03:27,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2024-11-10 18:03:27,976 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -21 predicate places. [2024-11-10 18:03:27,976 INFO L471 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2024-11-10 18:03:27,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:03:27,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONMEMORY_LEAK (8 of 9 remaining) [2024-11-10 18:03:27,981 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (7 of 9 remaining) [2024-11-10 18:03:27,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (6 of 9 remaining) [2024-11-10 18:03:27,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (5 of 9 remaining) [2024-11-10 18:03:27,983 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining) [2024-11-10 18:03:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining) [2024-11-10 18:03:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 9 remaining) [2024-11-10 18:03:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 9 remaining) [2024-11-10 18:03:27,984 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 9 remaining) [2024-11-10 18:03:27,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:03:27,985 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:03:27,991 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 18:03:27,991 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 18:03:27,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:03:27 BasicIcfg [2024-11-10 18:03:27,997 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 18:03:27,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 18:03:27,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 18:03:27,998 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 18:03:27,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:03:25" (3/4) ... [2024-11-10 18:03:28,000 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 18:03:28,003 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 18:03:28,009 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2024-11-10 18:03:28,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-10 18:03:28,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-10 18:03:28,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 18:03:28,011 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-10 18:03:28,111 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 18:03:28,112 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 18:03:28,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 18:03:28,112 INFO L158 Benchmark]: Toolchain (without parser) took 4466.77ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 98.8MB in the beginning and 166.4MB in the end (delta: -67.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,113 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:03:28,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 998.95ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 115.1MB in the end (delta: -16.3MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.66ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 111.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,113 INFO L158 Benchmark]: Boogie Preprocessor took 85.86ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 108.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,114 INFO L158 Benchmark]: IcfgBuilder took 636.51ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 76.0MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,115 INFO L158 Benchmark]: TraceAbstraction took 2499.12ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 75.4MB in the beginning and 171.6MB in the end (delta: -96.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 18:03:28,115 INFO L158 Benchmark]: Witness Printer took 114.04ms. Allocated memory is still 226.5MB. Free memory was 171.6MB in the beginning and 166.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 18:03:28,116 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 155.2MB. Free memory is still 120.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 998.95ms. Allocated memory is still 155.2MB. Free memory was 98.8MB in the beginning and 115.1MB in the end (delta: -16.3MB). Peak memory consumption was 64.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.66ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 111.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.86ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 108.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 636.51ms. Allocated memory is still 155.2MB. Free memory was 108.1MB in the beginning and 76.0MB in the end (delta: 32.1MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2499.12ms. Allocated memory was 155.2MB in the beginning and 226.5MB in the end (delta: 71.3MB). Free memory was 75.4MB in the beginning and 171.6MB in the end (delta: -96.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 114.04ms. Allocated memory is still 226.5MB. Free memory was 171.6MB in the beginning and 166.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1691]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1724]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1691]: 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 3 procedures, 57 locations, 9 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: 2.4s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 76 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 325 IncrementalHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 7 mSDtfsCounter, 325 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 1.0s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 18:03:28,150 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