./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe029_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/safe029_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 ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:22:32,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:22:32,104 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:22:32,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:22:32,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:22:32,137 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:22:32,137 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:22:32,137 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:22:32,138 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:22:32,141 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:22:32,141 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:22:32,142 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:22:32,142 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:22:32,142 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:22:32,142 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:22:32,143 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:22:32,143 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:22:32,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:22:32,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:22:32,143 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:22:32,144 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:22:32,145 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:22:32,146 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:22:32,147 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:22:32,147 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:22:32,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:22:32,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:22:32,147 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:22:32,147 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:22:32,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:22:32,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:22:32,149 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef851e22a0a98929f1b90876fcac5ec793e10efa4691f239ca948c8dc39b94fd [2024-11-17 03:22:32,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:22:32,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:22:32,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:22:32,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:22:32,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:22:32,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe029_tso.i [2024-11-17 03:22:33,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:22:33,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:22:33,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe029_tso.i [2024-11-17 03:22:33,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675eb6e34/70f959e2733b4bb19ffddf1976f17657/FLAGeeee232ae [2024-11-17 03:22:33,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/675eb6e34/70f959e2733b4bb19ffddf1976f17657 [2024-11-17 03:22:33,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:22:33,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:22:33,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:22:33,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:22:33,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:22:33,851 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:22:33" (1/1) ... [2024-11-17 03:22:33,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6386631f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:33, skipping insertion in model container [2024-11-17 03:22:33,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:22:33" (1/1) ... [2024-11-17 03:22:33,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:22:34,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:22:34,159 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:22:34,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:22:34,226 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:22:34,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34 WrapperNode [2024-11-17 03:22:34,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:22:34,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:22:34,227 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:22:34,227 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:22:34,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,242 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,256 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 50 [2024-11-17 03:22:34,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:22:34,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:22:34,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:22:34,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:22:34,264 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,264 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,266 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,275 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 03:22:34,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,276 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,280 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,283 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,288 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:22:34,289 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:22:34,289 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:22:34,289 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:22:34,290 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (1/1) ... [2024-11-17 03:22:34,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:22:34,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:22:34,328 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 03:22:34,333 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 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-17 03:22:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-17 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-17 03:22:34,363 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-17 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:22:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 03:22:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:22:34,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:22:34,365 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 03:22:34,500 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:22:34,502 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:22:34,629 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:22:34,629 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:22:34,694 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:22:34,694 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:22:34,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:22:34 BoogieIcfgContainer [2024-11-17 03:22:34,694 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:22:34,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:22:34,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:22:34,698 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:22:34,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:22:33" (1/3) ... [2024-11-17 03:22:34,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e69ce66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:22:34, skipping insertion in model container [2024-11-17 03:22:34,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:22:34" (2/3) ... [2024-11-17 03:22:34,699 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e69ce66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:22:34, skipping insertion in model container [2024-11-17 03:22:34,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:22:34" (3/3) ... [2024-11-17 03:22:34,700 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.i [2024-11-17 03:22:34,712 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:22:34,712 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:22:34,712 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:22:34,743 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-17 03:22:34,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 34 transitions, 76 flow [2024-11-17 03:22:34,788 INFO L124 PetriNetUnfolderBase]: 2/32 cut-off events. [2024-11-17 03:22:34,788 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:34,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 32 events. 2/32 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 44 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2024-11-17 03:22:34,790 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 34 transitions, 76 flow [2024-11-17 03:22:34,792 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 31 transitions, 68 flow [2024-11-17 03:22:34,801 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:22:34,808 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;@2dde52cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:22:34,809 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-17 03:22:34,816 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:22:34,816 INFO L124 PetriNetUnfolderBase]: 2/29 cut-off events. [2024-11-17 03:22:34,816 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:34,816 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:34,817 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:34,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:34,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1854779950, now seen corresponding path program 1 times [2024-11-17 03:22:34,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:34,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036123223] [2024-11-17 03:22:34,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:35,048 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 03:22:35,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:35,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036123223] [2024-11-17 03:22:35,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036123223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:35,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:35,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 03:22:35,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694259049] [2024-11-17 03:22:35,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:35,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:22:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:35,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:22:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:22:35,089 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-17 03:22:35,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 03:22:35,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:35,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-17 03:22:35,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:35,233 INFO L124 PetriNetUnfolderBase]: 515/963 cut-off events. [2024-11-17 03:22:35,234 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:22:35,238 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1833 conditions, 963 events. 515/963 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4751 event pairs, 515 based on Foata normal form. 108/1070 useless extension candidates. Maximal degree in co-relation 1823. Up to 852 conditions per place. [2024-11-17 03:22:35,244 INFO L140 encePairwiseOnDemand]: 30/34 looper letters, 20 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2024-11-17 03:22:35,244 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 27 transitions, 104 flow [2024-11-17 03:22:35,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:22:35,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:22:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 46 transitions. [2024-11-17 03:22:35,254 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45098039215686275 [2024-11-17 03:22:35,256 INFO L175 Difference]: Start difference. First operand has 36 places, 31 transitions, 68 flow. Second operand 3 states and 46 transitions. [2024-11-17 03:22:35,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 27 transitions, 104 flow [2024-11-17 03:22:35,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 27 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 03:22:35,260 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 58 flow [2024-11-17 03:22:35,261 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=58, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-17 03:22:35,264 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -2 predicate places. [2024-11-17 03:22:35,265 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 58 flow [2024-11-17 03:22:35,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 03:22:35,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:35,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:35,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:22:35,267 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:35,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1854779373, now seen corresponding path program 1 times [2024-11-17 03:22:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261493646] [2024-11-17 03:22:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:35,489 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 03:22:35,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:35,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261493646] [2024-11-17 03:22:35,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261493646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:35,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:35,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:22:35,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119852655] [2024-11-17 03:22:35,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:35,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:22:35,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:35,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:22:35,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:22:35,495 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-17 03:22:35,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 58 flow. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 03:22:35,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:35,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-17 03:22:35,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:35,741 INFO L124 PetriNetUnfolderBase]: 645/1152 cut-off events. [2024-11-17 03:22:35,742 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 03:22:35,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2252 conditions, 1152 events. 645/1152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 5748 event pairs, 273 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 2246. Up to 722 conditions per place. [2024-11-17 03:22:35,748 INFO L140 encePairwiseOnDemand]: 27/34 looper letters, 27 selfloop transitions, 3 changer transitions 42/76 dead transitions. [2024-11-17 03:22:35,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 76 transitions, 304 flow [2024-11-17 03:22:35,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 03:22:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-17 03:22:35,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 130 transitions. [2024-11-17 03:22:35,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47794117647058826 [2024-11-17 03:22:35,751 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 58 flow. Second operand 8 states and 130 transitions. [2024-11-17 03:22:35,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 76 transitions, 304 flow [2024-11-17 03:22:35,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 76 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:22:35,753 INFO L231 Difference]: Finished difference. Result has 44 places, 27 transitions, 90 flow [2024-11-17 03:22:35,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=90, PETRI_PLACES=44, PETRI_TRANSITIONS=27} [2024-11-17 03:22:35,754 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 8 predicate places. [2024-11-17 03:22:35,754 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 27 transitions, 90 flow [2024-11-17 03:22:35,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 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 03:22:35,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:35,755 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:35,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:22:35,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:35,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:35,756 INFO L85 PathProgramCache]: Analyzing trace with hash -871721486, now seen corresponding path program 1 times [2024-11-17 03:22:35,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:35,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446956572] [2024-11-17 03:22:35,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:35,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:35,898 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 03:22:35,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:35,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446956572] [2024-11-17 03:22:35,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446956572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:35,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:35,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:22:35,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173418340] [2024-11-17 03:22:35,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:35,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:22:35,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:35,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:22:35,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:22:35,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-17 03:22:35,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 27 transitions, 90 flow. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 03:22:35,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:35,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-17 03:22:35,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:36,077 INFO L124 PetriNetUnfolderBase]: 506/927 cut-off events. [2024-11-17 03:22:36,077 INFO L125 PetriNetUnfolderBase]: For 587/587 co-relation queries the response was YES. [2024-11-17 03:22:36,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 927 events. 506/927 cut-off events. For 587/587 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 4364 event pairs, 246 based on Foata normal form. 30/956 useless extension candidates. Maximal degree in co-relation 2303. Up to 709 conditions per place. [2024-11-17 03:22:36,083 INFO L140 encePairwiseOnDemand]: 28/34 looper letters, 29 selfloop transitions, 3 changer transitions 25/61 dead transitions. [2024-11-17 03:22:36,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 61 transitions, 299 flow [2024-11-17 03:22:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:22:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:22:36,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 106 transitions. [2024-11-17 03:22:36,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44537815126050423 [2024-11-17 03:22:36,087 INFO L175 Difference]: Start difference. First operand has 44 places, 27 transitions, 90 flow. Second operand 7 states and 106 transitions. [2024-11-17 03:22:36,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 61 transitions, 299 flow [2024-11-17 03:22:36,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 61 transitions, 287 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-17 03:22:36,091 INFO L231 Difference]: Finished difference. Result has 46 places, 29 transitions, 118 flow [2024-11-17 03:22:36,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=118, PETRI_PLACES=46, PETRI_TRANSITIONS=29} [2024-11-17 03:22:36,092 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 10 predicate places. [2024-11-17 03:22:36,092 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 29 transitions, 118 flow [2024-11-17 03:22:36,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 03:22:36,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:36,093 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:36,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 03:22:36,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:36,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1727053572, now seen corresponding path program 1 times [2024-11-17 03:22:36,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:36,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784426225] [2024-11-17 03:22:36,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:36,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:36,218 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 03:22:36,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:36,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784426225] [2024-11-17 03:22:36,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784426225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:36,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:36,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:22:36,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897311261] [2024-11-17 03:22:36,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:36,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:22:36,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:36,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:22:36,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:22:36,223 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-17 03:22:36,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 29 transitions, 118 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 03:22:36,223 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:36,223 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-17 03:22:36,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:36,439 INFO L124 PetriNetUnfolderBase]: 742/1331 cut-off events. [2024-11-17 03:22:36,440 INFO L125 PetriNetUnfolderBase]: For 1715/1715 co-relation queries the response was YES. [2024-11-17 03:22:36,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3776 conditions, 1331 events. 742/1331 cut-off events. For 1715/1715 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 6962 event pairs, 200 based on Foata normal form. 44/1374 useless extension candidates. Maximal degree in co-relation 3760. Up to 605 conditions per place. [2024-11-17 03:22:36,445 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 37 selfloop transitions, 3 changer transitions 33/77 dead transitions. [2024-11-17 03:22:36,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 77 transitions, 432 flow [2024-11-17 03:22:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:22:36,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:22:36,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 121 transitions. [2024-11-17 03:22:36,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5084033613445378 [2024-11-17 03:22:36,446 INFO L175 Difference]: Start difference. First operand has 46 places, 29 transitions, 118 flow. Second operand 7 states and 121 transitions. [2024-11-17 03:22:36,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 77 transitions, 432 flow [2024-11-17 03:22:36,451 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 77 transitions, 411 flow, removed 9 selfloop flow, removed 3 redundant places. [2024-11-17 03:22:36,452 INFO L231 Difference]: Finished difference. Result has 50 places, 29 transitions, 128 flow [2024-11-17 03:22:36,452 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=128, PETRI_PLACES=50, PETRI_TRANSITIONS=29} [2024-11-17 03:22:36,452 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 14 predicate places. [2024-11-17 03:22:36,452 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 29 transitions, 128 flow [2024-11-17 03:22:36,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 03:22:36,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:36,453 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:36,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:22:36,453 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:36,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:36,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1411083996, now seen corresponding path program 1 times [2024-11-17 03:22:36,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:36,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074405652] [2024-11-17 03:22:36,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:36,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:36,523 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 03:22:36,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:36,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074405652] [2024-11-17 03:22:36,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074405652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:36,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:36,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 03:22:36,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150317883] [2024-11-17 03:22:36,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:36,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:22:36,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:36,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:22:36,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:22:36,525 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 34 [2024-11-17 03:22:36,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 29 transitions, 128 flow. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 03:22:36,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:36,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 34 [2024-11-17 03:22:36,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:36,748 INFO L124 PetriNetUnfolderBase]: 945/1714 cut-off events. [2024-11-17 03:22:36,749 INFO L125 PetriNetUnfolderBase]: For 3720/3720 co-relation queries the response was YES. [2024-11-17 03:22:36,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5030 conditions, 1714 events. 945/1714 cut-off events. For 3720/3720 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 9583 event pairs, 219 based on Foata normal form. 60/1773 useless extension candidates. Maximal degree in co-relation 5011. Up to 764 conditions per place. [2024-11-17 03:22:36,756 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 35 selfloop transitions, 3 changer transitions 33/75 dead transitions. [2024-11-17 03:22:36,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 75 transitions, 457 flow [2024-11-17 03:22:36,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 03:22:36,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 03:22:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 119 transitions. [2024-11-17 03:22:36,757 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-17 03:22:36,757 INFO L175 Difference]: Start difference. First operand has 50 places, 29 transitions, 128 flow. Second operand 7 states and 119 transitions. [2024-11-17 03:22:36,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 75 transitions, 457 flow [2024-11-17 03:22:36,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 415 flow, removed 17 selfloop flow, removed 5 redundant places. [2024-11-17 03:22:36,767 INFO L231 Difference]: Finished difference. Result has 52 places, 29 transitions, 130 flow [2024-11-17 03:22:36,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=130, PETRI_PLACES=52, PETRI_TRANSITIONS=29} [2024-11-17 03:22:36,768 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-11-17 03:22:36,769 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 29 transitions, 130 flow [2024-11-17 03:22:36,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 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 03:22:36,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:36,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:36,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:22:36,771 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:36,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:36,771 INFO L85 PathProgramCache]: Analyzing trace with hash -681341231, now seen corresponding path program 1 times [2024-11-17 03:22:36,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:36,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937488371] [2024-11-17 03:22:36,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:36,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:36,844 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 03:22:36,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:36,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937488371] [2024-11-17 03:22:36,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937488371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:36,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:36,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:22:36,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995333474] [2024-11-17 03:22:36,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:36,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:22:36,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:36,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:22:36,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:22:36,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-11-17 03:22:36,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 29 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:36,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:36,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-11-17 03:22:36,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:36,943 INFO L124 PetriNetUnfolderBase]: 513/1001 cut-off events. [2024-11-17 03:22:36,943 INFO L125 PetriNetUnfolderBase]: For 1457/1457 co-relation queries the response was YES. [2024-11-17 03:22:36,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2647 conditions, 1001 events. 513/1001 cut-off events. For 1457/1457 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5084 event pairs, 143 based on Foata normal form. 76/1076 useless extension candidates. Maximal degree in co-relation 2627. Up to 465 conditions per place. [2024-11-17 03:22:36,947 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 34 selfloop transitions, 4 changer transitions 9/51 dead transitions. [2024-11-17 03:22:36,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 51 transitions, 322 flow [2024-11-17 03:22:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 03:22:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 03:22:36,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2024-11-17 03:22:36,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5661764705882353 [2024-11-17 03:22:36,948 INFO L175 Difference]: Start difference. First operand has 52 places, 29 transitions, 130 flow. Second operand 4 states and 77 transitions. [2024-11-17 03:22:36,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 51 transitions, 322 flow [2024-11-17 03:22:36,950 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 51 transitions, 295 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-17 03:22:36,951 INFO L231 Difference]: Finished difference. Result has 48 places, 31 transitions, 141 flow [2024-11-17 03:22:36,951 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=141, PETRI_PLACES=48, PETRI_TRANSITIONS=31} [2024-11-17 03:22:36,952 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2024-11-17 03:22:36,953 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 31 transitions, 141 flow [2024-11-17 03:22:36,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:22:36,953 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:22:36,953 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 03:22:36,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:22:36,954 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-17 03:22:36,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:22:36,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1352625024, now seen corresponding path program 1 times [2024-11-17 03:22:36,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:22:36,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316087346] [2024-11-17 03:22:36,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:22:36,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:22:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:22:37,019 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 03:22:37,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:22:37,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316087346] [2024-11-17 03:22:37,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316087346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:22:37,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:22:37,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 03:22:37,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244554747] [2024-11-17 03:22:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:22:37,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 03:22:37,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:22:37,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 03:22:37,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 03:22:37,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 34 [2024-11-17 03:22:37,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 31 transitions, 141 flow. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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) [2024-11-17 03:22:37,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:22:37,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 34 [2024-11-17 03:22:37,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:22:37,106 INFO L124 PetriNetUnfolderBase]: 269/521 cut-off events. [2024-11-17 03:22:37,106 INFO L125 PetriNetUnfolderBase]: For 588/588 co-relation queries the response was YES. [2024-11-17 03:22:37,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1520 conditions, 521 events. 269/521 cut-off events. For 588/588 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2260 event pairs, 73 based on Foata normal form. 48/568 useless extension candidates. Maximal degree in co-relation 1501. Up to 242 conditions per place. [2024-11-17 03:22:37,108 INFO L140 encePairwiseOnDemand]: 29/34 looper letters, 0 selfloop transitions, 0 changer transitions 41/41 dead transitions. [2024-11-17 03:22:37,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 248 flow [2024-11-17 03:22:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:22:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:22:37,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 77 transitions. [2024-11-17 03:22:37,109 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45294117647058824 [2024-11-17 03:22:37,110 INFO L175 Difference]: Start difference. First operand has 48 places, 31 transitions, 141 flow. Second operand 5 states and 77 transitions. [2024-11-17 03:22:37,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 248 flow [2024-11-17 03:22:37,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 41 transitions, 213 flow, removed 9 selfloop flow, removed 8 redundant places. [2024-11-17 03:22:37,111 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2024-11-17 03:22:37,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=34, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2024-11-17 03:22:37,112 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 3 predicate places. [2024-11-17 03:22:37,112 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2024-11-17 03:22:37,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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) [2024-11-17 03:22:37,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-17 03:22:37,115 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-17 03:22:37,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-17 03:22:37,116 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-17 03:22:37,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:22:37,116 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-17 03:22:37,118 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 03:22:37,119 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 03:22:37,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 03:22:37 BasicIcfg [2024-11-17 03:22:37,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 03:22:37,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 03:22:37,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 03:22:37,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 03:22:37,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:22:34" (3/4) ... [2024-11-17 03:22:37,126 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 03:22:37,128 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-17 03:22:37,128 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-17 03:22:37,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2024-11-17 03:22:37,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-17 03:22:37,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-17 03:22:37,131 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 03:22:37,191 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 03:22:37,191 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 03:22:37,191 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 03:22:37,192 INFO L158 Benchmark]: Toolchain (without parser) took 3349.51ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 107.4MB in the beginning and 189.8MB in the end (delta: -82.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:22:37,192 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 03:22:37,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.07ms. Allocated memory is still 178.3MB. Free memory was 107.0MB in the beginning and 84.8MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.34ms. Allocated memory is still 178.3MB. Free memory was 84.8MB in the beginning and 82.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,193 INFO L158 Benchmark]: Boogie Preprocessor took 31.63ms. Allocated memory is still 178.3MB. Free memory was 82.6MB in the beginning and 80.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,193 INFO L158 Benchmark]: IcfgBuilder took 405.38ms. Allocated memory is still 178.3MB. Free memory was 80.6MB in the beginning and 134.5MB in the end (delta: -53.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,193 INFO L158 Benchmark]: TraceAbstraction took 2426.86ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 133.4MB in the beginning and 194.0MB in the end (delta: -60.6MB). Peak memory consumption was 118.6MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,194 INFO L158 Benchmark]: Witness Printer took 68.05ms. Allocated memory is still 237.0MB. Free memory was 193.0MB in the beginning and 189.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 03:22:37,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 178.3MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.07ms. Allocated memory is still 178.3MB. Free memory was 107.0MB in the beginning and 84.8MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.34ms. Allocated memory is still 178.3MB. Free memory was 84.8MB in the beginning and 82.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.63ms. Allocated memory is still 178.3MB. Free memory was 82.6MB in the beginning and 80.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 405.38ms. Allocated memory is still 178.3MB. Free memory was 80.6MB in the beginning and 134.5MB in the end (delta: -53.9MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2426.86ms. Allocated memory was 178.3MB in the beginning and 237.0MB in the end (delta: 58.7MB). Free memory was 133.4MB in the beginning and 194.0MB in the end (delta: -60.6MB). Peak memory consumption was 118.6MB. Max. memory is 16.1GB. * Witness Printer took 68.05ms. Allocated memory is still 237.0MB. Free memory was 193.0MB in the beginning and 189.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 754]: 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 5 procedures, 49 locations, 4 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: 2.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 247 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 244 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 733 IncrementalHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 1 mSDtfsCounter, 733 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=141occurred in iteration=6, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 285 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 03:22:37,219 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