./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe034_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d 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-wmm/safe034_tso.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 f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:23:00,164 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:23:00,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:23:00,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:23:00,254 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:23:00,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:23:00,285 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:23:00,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:23:00,286 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:23:00,287 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:23:00,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:23:00,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:23:00,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:23:00,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:23:00,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:23:00,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:23:00,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:23:00,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:23:00,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:23:00,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:23:00,295 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:23:00,295 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:23:00,295 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:23:00,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:23:00,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:23:00,296 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:23:00,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:23:00,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:23:00,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:23:00,297 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:23:00,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:23:00,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:23:00,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:23:00,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:23:00,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:23:00,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:23:00,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:23:00,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:23:00,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:23:00,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:23:00,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:23:00,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:23:00,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f95cec1ef19619129f583fb8c66d7deea9b3c11be41d52b59a1e2cd5f199d72e [2024-11-17 03:23:00,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:23:00,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:23:00,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:23:00,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:23:00,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:23:00,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe034_tso.i [2024-11-17 03:23:02,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:23:02,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:23:02,427 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe034_tso.i [2024-11-17 03:23:02,443 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9409926/13358e41413e4031b51b68dc44fa0669/FLAG5b217eb42 [2024-11-17 03:23:02,458 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a9409926/13358e41413e4031b51b68dc44fa0669 [2024-11-17 03:23:02,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:23:02,462 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:23:02,464 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:23:02,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:23:02,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:23:02,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:23:02" (1/1) ... [2024-11-17 03:23:02,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a27ffbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:02, skipping insertion in model container [2024-11-17 03:23:02,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:23:02" (1/1) ... [2024-11-17 03:23:02,520 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:23:02,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:23:02,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:23:02,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:23:03,021 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:23:03,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03 WrapperNode [2024-11-17 03:23:03,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:23:03,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:23:03,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:23:03,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:23:03,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,078 INFO L138 Inliner]: procedures = 175, calls = 46, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-17 03:23:03,078 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:23:03,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:23:03,081 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:23:03,081 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:23:03,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,095 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,122 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-17 03:23:03,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,127 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:23:03,144 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:23:03,145 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:23:03,145 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:23:03,146 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (1/1) ... [2024-11-17 03:23:03,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:23:03,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:23:03,185 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) [2024-11-17 03:23:03,189 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 [2024-11-17 03:23:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:23:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:23:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:23:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:23:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:23:03,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:23:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-17 03:23:03,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-17 03:23:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:23:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:23:03,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:23:03,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:23:03,241 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 03:23:03,390 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:23:03,393 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:23:03,575 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:23:03,576 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:23:03,691 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:23:03,692 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:23:03,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:03 BoogieIcfgContainer [2024-11-17 03:23:03,692 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:23:03,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:23:03,698 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:23:03,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:23:03,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:23:02" (1/3) ... [2024-11-17 03:23:03,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5661c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:23:03, skipping insertion in model container [2024-11-17 03:23:03,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:23:03" (2/3) ... [2024-11-17 03:23:03,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f5661c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:23:03, skipping insertion in model container [2024-11-17 03:23:03,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:03" (3/3) ... [2024-11-17 03:23:03,705 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_tso.i [2024-11-17 03:23:03,722 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:23:03,722 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:23:03,723 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:23:03,769 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:23:03,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 53 places, 45 transitions, 102 flow [2024-11-17 03:23:03,849 INFO L124 PetriNetUnfolderBase]: 2/42 cut-off events. [2024-11-17 03:23:03,849 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:03,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-17 03:23:03,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 45 transitions, 102 flow [2024-11-17 03:23:03,867 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-17 03:23:03,883 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:23:03,898 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;@36377897, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:23:03,898 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-17 03:23:03,915 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:23:03,916 INFO L124 PetriNetUnfolderBase]: 2/39 cut-off events. [2024-11-17 03:23:03,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:03,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:03,917 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:03,918 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:03,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:03,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2014506503, now seen corresponding path program 1 times [2024-11-17 03:23:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382411564] [2024-11-17 03:23:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:04,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:04,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:04,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382411564] [2024-11-17 03:23:04,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382411564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:04,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:04,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:23:04,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506124169] [2024-11-17 03:23:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:04,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:23:04,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:23:04,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:23:04,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 45 [2024-11-17 03:23:04,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-17 03:23:04,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:04,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 45 [2024-11-17 03:23:04,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:05,387 INFO L124 PetriNetUnfolderBase]: 6628/10231 cut-off events. [2024-11-17 03:23:05,387 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-17 03:23:05,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19737 conditions, 10231 events. 6628/10231 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 373. Compared 62119 event pairs, 6628 based on Foata normal form. 882/11051 useless extension candidates. Maximal degree in co-relation 19726. Up to 9387 conditions per place. [2024-11-17 03:23:05,459 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 29 selfloop transitions, 1 changer transitions 1/37 dead transitions. [2024-11-17 03:23:05,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 37 transitions, 145 flow [2024-11-17 03:23:05,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:23:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:23:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2024-11-17 03:23:05,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45185185185185184 [2024-11-17 03:23:05,474 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 61 transitions. [2024-11-17 03:23:05,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 37 transitions, 145 flow [2024-11-17 03:23:05,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 142 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 03:23:05,480 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 80 flow [2024-11-17 03:23:05,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-17 03:23:05,486 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-17 03:23:05,487 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 80 flow [2024-11-17 03:23:05,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2024-11-17 03:23:05,487 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:05,487 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:23:05,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:23:05,488 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:05,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:05,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2014507029, now seen corresponding path program 1 times [2024-11-17 03:23:05,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:05,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8511516] [2024-11-17 03:23:05,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:05,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:05,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:05,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8511516] [2024-11-17 03:23:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8511516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:05,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:23:05,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413917384] [2024-11-17 03:23:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:05,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:23:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:05,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:23:05,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:23:05,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-17 03:23:05,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 80 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-17 03:23:05,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:05,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-17 03:23:05,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:06,337 INFO L124 PetriNetUnfolderBase]: 4634/7386 cut-off events. [2024-11-17 03:23:06,338 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:23:06,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14297 conditions, 7386 events. 4634/7386 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 267. Compared 44409 event pairs, 818 based on Foata normal form. 294/7667 useless extension candidates. Maximal degree in co-relation 14291. Up to 3859 conditions per place. [2024-11-17 03:23:06,378 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 61 selfloop transitions, 5 changer transitions 1/73 dead transitions. [2024-11-17 03:23:06,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 73 transitions, 292 flow [2024-11-17 03:23:06,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:23:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:23:06,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2024-11-17 03:23:06,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6055555555555555 [2024-11-17 03:23:06,381 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 80 flow. Second operand 4 states and 109 transitions. [2024-11-17 03:23:06,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 73 transitions, 292 flow [2024-11-17 03:23:06,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 73 transitions, 291 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:23:06,385 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 113 flow [2024-11-17 03:23:06,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=113, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-11-17 03:23:06,387 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 0 predicate places. [2024-11-17 03:23:06,387 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 113 flow [2024-11-17 03:23:06,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-17 03:23:06,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:06,388 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] [2024-11-17 03:23:06,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:23:06,388 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:06,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:06,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1176562333, now seen corresponding path program 1 times [2024-11-17 03:23:06,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:06,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060932604] [2024-11-17 03:23:06,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:06,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:06,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:06,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060932604] [2024-11-17 03:23:06,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060932604] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:06,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:06,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:23:06,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330001914] [2024-11-17 03:23:06,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:06,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:23:06,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:23:06,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:23:06,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-17 03:23:06,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 113 flow. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-17 03:23:06,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:06,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-17 03:23:06,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:06,986 INFO L124 PetriNetUnfolderBase]: 2514/3996 cut-off events. [2024-11-17 03:23:06,986 INFO L125 PetriNetUnfolderBase]: For 707/707 co-relation queries the response was YES. [2024-11-17 03:23:06,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9014 conditions, 3996 events. 2514/3996 cut-off events. For 707/707 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 20582 event pairs, 536 based on Foata normal form. 194/4177 useless extension candidates. Maximal degree in co-relation 9005. Up to 1317 conditions per place. [2024-11-17 03:23:07,007 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 78 selfloop transitions, 8 changer transitions 1/93 dead transitions. [2024-11-17 03:23:07,007 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 93 transitions, 416 flow [2024-11-17 03:23:07,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:23:07,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:23:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-17 03:23:07,009 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2024-11-17 03:23:07,009 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 113 flow. Second operand 5 states and 139 transitions. [2024-11-17 03:23:07,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 93 transitions, 416 flow [2024-11-17 03:23:07,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 406 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 03:23:07,014 INFO L231 Difference]: Finished difference. Result has 53 places, 42 transitions, 153 flow [2024-11-17 03:23:07,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=153, PETRI_PLACES=53, PETRI_TRANSITIONS=42} [2024-11-17 03:23:07,015 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 4 predicate places. [2024-11-17 03:23:07,015 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 42 transitions, 153 flow [2024-11-17 03:23:07,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-17 03:23:07,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:07,016 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] [2024-11-17 03:23:07,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:23:07,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:07,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash 212658802, now seen corresponding path program 1 times [2024-11-17 03:23:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:07,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366329472] [2024-11-17 03:23:07,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:07,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:07,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:07,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366329472] [2024-11-17 03:23:07,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366329472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:07,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:07,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:23:07,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155236748] [2024-11-17 03:23:07,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:07,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:23:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:07,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:23:07,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:23:07,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-17 03:23:07,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 42 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-17 03:23:07,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:07,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-17 03:23:07,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:07,460 INFO L124 PetriNetUnfolderBase]: 1573/2421 cut-off events. [2024-11-17 03:23:07,461 INFO L125 PetriNetUnfolderBase]: For 1332/1332 co-relation queries the response was YES. [2024-11-17 03:23:07,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5970 conditions, 2421 events. 1573/2421 cut-off events. For 1332/1332 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 10958 event pairs, 487 based on Foata normal form. 64/2472 useless extension candidates. Maximal degree in co-relation 5959. Up to 918 conditions per place. [2024-11-17 03:23:07,474 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 65 selfloop transitions, 11 changer transitions 1/83 dead transitions. [2024-11-17 03:23:07,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 83 transitions, 399 flow [2024-11-17 03:23:07,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 03:23:07,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 03:23:07,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 139 transitions. [2024-11-17 03:23:07,476 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-17 03:23:07,476 INFO L175 Difference]: Start difference. First operand has 53 places, 42 transitions, 153 flow. Second operand 6 states and 139 transitions. [2024-11-17 03:23:07,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 83 transitions, 399 flow [2024-11-17 03:23:07,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 83 transitions, 374 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 03:23:07,490 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 167 flow [2024-11-17 03:23:07,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=167, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-11-17 03:23:07,492 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 7 predicate places. [2024-11-17 03:23:07,493 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 167 flow [2024-11-17 03:23:07,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 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) [2024-11-17 03:23:07,493 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:07,494 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] [2024-11-17 03:23:07,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:23:07,495 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:07,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash -807957477, now seen corresponding path program 1 times [2024-11-17 03:23:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:07,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679476175] [2024-11-17 03:23:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:07,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679476175] [2024-11-17 03:23:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679476175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:07,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:07,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 03:23:07,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840584885] [2024-11-17 03:23:07,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:07,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 03:23:07,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:07,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 03:23:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 03:23:07,682 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-17 03:23:07,682 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 167 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2024-11-17 03:23:07,683 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:07,683 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-17 03:23:07,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:08,346 INFO L124 PetriNetUnfolderBase]: 2921/4497 cut-off events. [2024-11-17 03:23:08,347 INFO L125 PetriNetUnfolderBase]: For 3256/3256 co-relation queries the response was YES. [2024-11-17 03:23:08,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11403 conditions, 4497 events. 2921/4497 cut-off events. For 3256/3256 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 23200 event pairs, 125 based on Foata normal form. 16/4511 useless extension candidates. Maximal degree in co-relation 11391. Up to 1820 conditions per place. [2024-11-17 03:23:08,369 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 70 selfloop transitions, 8 changer transitions 61/145 dead transitions. [2024-11-17 03:23:08,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 145 transitions, 853 flow [2024-11-17 03:23:08,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 03:23:08,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 03:23:08,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2024-11-17 03:23:08,372 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4866666666666667 [2024-11-17 03:23:08,372 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 167 flow. Second operand 10 states and 219 transitions. [2024-11-17 03:23:08,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 145 transitions, 853 flow [2024-11-17 03:23:08,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 145 transitions, 659 flow, removed 30 selfloop flow, removed 8 redundant places. [2024-11-17 03:23:08,397 INFO L231 Difference]: Finished difference. Result has 65 places, 47 transitions, 170 flow [2024-11-17 03:23:08,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=170, PETRI_PLACES=65, PETRI_TRANSITIONS=47} [2024-11-17 03:23:08,398 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2024-11-17 03:23:08,399 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 47 transitions, 170 flow [2024-11-17 03:23:08,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 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) [2024-11-17 03:23:08,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:23:08,399 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] [2024-11-17 03:23:08,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:23:08,400 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-17 03:23:08,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:23:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1678413649, now seen corresponding path program 2 times [2024-11-17 03:23:08,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:23:08,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226264920] [2024-11-17 03:23:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:23:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:23:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:23:08,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:23:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:23:08,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226264920] [2024-11-17 03:23:08,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226264920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:23:08,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:23:08,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 03:23:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709445780] [2024-11-17 03:23:08,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:23:08,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:23:08,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:23:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:23:08,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:23:08,601 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 45 [2024-11-17 03:23:08,601 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 47 transitions, 170 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-17 03:23:08,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:23:08,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 45 [2024-11-17 03:23:08,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:23:08,982 INFO L124 PetriNetUnfolderBase]: 2047/3248 cut-off events. [2024-11-17 03:23:08,983 INFO L125 PetriNetUnfolderBase]: For 1110/1110 co-relation queries the response was YES. [2024-11-17 03:23:08,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7964 conditions, 3248 events. 2047/3248 cut-off events. For 1110/1110 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 16177 event pairs, 366 based on Foata normal form. 8/3253 useless extension candidates. Maximal degree in co-relation 7953. Up to 2073 conditions per place. [2024-11-17 03:23:08,996 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2024-11-17 03:23:08,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 90 transitions, 474 flow [2024-11-17 03:23:08,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:23:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:23:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 144 transitions. [2024-11-17 03:23:08,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2024-11-17 03:23:08,998 INFO L175 Difference]: Start difference. First operand has 65 places, 47 transitions, 170 flow. Second operand 7 states and 144 transitions. [2024-11-17 03:23:08,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 90 transitions, 474 flow [2024-11-17 03:23:09,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 90 transitions, 468 flow, removed 3 selfloop flow, removed 3 redundant places. [2024-11-17 03:23:09,002 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-17 03:23:09,002 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-17 03:23:09,002 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 11 predicate places. [2024-11-17 03:23:09,003 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-17 03:23:09,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-17 03:23:09,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-17 03:23:09,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-17 03:23:09,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-17 03:23:09,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-17 03:23:09,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-17 03:23:09,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:23:09,007 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2024-11-17 03:23:09,011 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:23:09,011 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:23:09,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:23:09 BasicIcfg [2024-11-17 03:23:09,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:23:09,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:23:09,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:23:09,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:23:09,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:23:03" (3/4) ... [2024-11-17 03:23:09,024 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:23:09,027 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 03:23:09,028 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 03:23:09,028 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-17 03:23:09,032 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-17 03:23:09,033 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-17 03:23:09,033 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 03:23:09,033 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 03:23:09,115 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:23:09,115 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:23:09,115 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:23:09,116 INFO L158 Benchmark]: Toolchain (without parser) took 6654.31ms. Allocated memory was 155.2MB in the beginning and 534.8MB in the end (delta: 379.6MB). Free memory was 98.1MB in the beginning and 161.6MB in the end (delta: -63.5MB). Peak memory consumption was 318.2MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,116 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:23:09,116 INFO L158 Benchmark]: CACSL2BoogieTranslator took 557.81ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 75.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.44ms. Allocated memory is still 155.2MB. Free memory was 75.0MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,119 INFO L158 Benchmark]: Boogie Preprocessor took 64.65ms. Allocated memory is still 155.2MB. Free memory was 73.0MB in the beginning and 70.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,120 INFO L158 Benchmark]: IcfgBuilder took 547.93ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 70.8MB in the beginning and 155.5MB in the end (delta: -84.7MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,120 INFO L158 Benchmark]: TraceAbstraction took 5323.21ms. Allocated memory was 197.1MB in the beginning and 534.8MB in the end (delta: 337.6MB). Free memory was 154.5MB in the beginning and 165.8MB in the end (delta: -11.3MB). Peak memory consumption was 326.3MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,120 INFO L158 Benchmark]: Witness Printer took 94.63ms. Allocated memory is still 534.8MB. Free memory was 165.8MB in the beginning and 161.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 03:23:09,122 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 155.2MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 557.81ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 75.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.44ms. Allocated memory is still 155.2MB. Free memory was 75.0MB in the beginning and 73.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.65ms. Allocated memory is still 155.2MB. Free memory was 73.0MB in the beginning and 70.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 547.93ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 70.8MB in the beginning and 155.5MB in the end (delta: -84.7MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5323.21ms. Allocated memory was 197.1MB in the beginning and 534.8MB in the end (delta: 337.6MB). Free memory was 154.5MB in the beginning and 165.8MB in the end (delta: -11.3MB). Peak memory consumption was 326.3MB. Max. memory is 16.1GB. * Witness Printer took 94.63ms. Allocated memory is still 534.8MB. Free memory was 165.8MB in the beginning and 161.6MB 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: 780]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 70 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 418 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 413 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 876 IncrementalHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 876 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=5, InterpolantAutomatonStates: 35, 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, 140 NumberOfCodeBlocks, 140 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 134 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 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! [2024-11-17 03:23:09,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE