./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --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/weaver/bench-exp2x9.wvr.c -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 af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 03:31:10,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 03:31:10,275 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 03:31:10,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 03:31:10,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 03:31:10,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 03:31:10,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 03:31:10,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 03:31:10,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 03:31:10,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 03:31:10,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 03:31:10,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 03:31:10,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 03:31:10,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 03:31:10,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 03:31:10,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 03:31:10,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 03:31:10,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 03:31:10,310 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 03:31:10,310 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 03:31:10,311 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 03:31:10,313 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 03:31:10,313 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 03:31:10,313 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 03:31:10,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 03:31:10,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:31:10,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 03:31:10,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 03:31:10,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 03:31:10,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 03:31:10,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 03:31:10,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 03:31:10,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2024-11-17 03:31:10,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 03:31:10,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 03:31:10,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 03:31:10,525 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 03:31:10,526 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 03:31:10,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-17 03:31:11,835 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 03:31:11,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 03:31:11,973 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2024-11-17 03:31:11,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f30f494/7c8b18a1c3524881b1128828a8b1eb8a/FLAGf63f494cf [2024-11-17 03:31:11,991 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1f30f494/7c8b18a1c3524881b1128828a8b1eb8a [2024-11-17 03:31:11,993 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 03:31:11,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 03:31:11,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 03:31:11,995 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 03:31:11,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 03:31:12,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:31:11" (1/1) ... [2024-11-17 03:31:12,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba48adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12, skipping insertion in model container [2024-11-17 03:31:12,000 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:31:11" (1/1) ... [2024-11-17 03:31:12,022 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 03:31:12,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:31:12,213 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 03:31:12,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 03:31:12,247 INFO L204 MainTranslator]: Completed translation [2024-11-17 03:31:12,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12 WrapperNode [2024-11-17 03:31:12,248 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 03:31:12,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 03:31:12,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 03:31:12,250 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 03:31:12,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,262 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,276 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-17 03:31:12,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 03:31:12,278 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 03:31:12,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 03:31:12,279 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 03:31:12,288 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,306 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 03:31:12,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,313 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,317 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 03:31:12,317 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 03:31:12,318 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 03:31:12,318 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 03:31:12,318 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (1/1) ... [2024-11-17 03:31:12,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 03:31:12,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:31:12,350 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 03:31:12,354 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 03:31:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 03:31:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 03:31:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 03:31:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 03:31:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 03:31:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 03:31:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 03:31:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-17 03:31:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-17 03:31:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 03:31:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 03:31:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 03:31:12,420 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 03:31:12,518 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 03:31:12,520 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 03:31:12,673 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 03:31:12,673 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 03:31:12,790 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 03:31:12,790 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 03:31:12,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:31:12 BoogieIcfgContainer [2024-11-17 03:31:12,790 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 03:31:12,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 03:31:12,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 03:31:12,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 03:31:12,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:31:11" (1/3) ... [2024-11-17 03:31:12,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bba7f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:12, skipping insertion in model container [2024-11-17 03:31:12,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:31:12" (2/3) ... [2024-11-17 03:31:12,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bba7f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:31:12, skipping insertion in model container [2024-11-17 03:31:12,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 03:31:12" (3/3) ... [2024-11-17 03:31:12,797 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-11-17 03:31:12,811 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 03:31:12,811 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-17 03:31:12,811 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 03:31:12,863 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 03:31:12,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 46 transitions, 120 flow [2024-11-17 03:31:12,913 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-17 03:31:12,913 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:31:12,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 42 events. 8/42 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 45 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-17 03:31:12,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 46 transitions, 120 flow [2024-11-17 03:31:12,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 41 transitions, 106 flow [2024-11-17 03:31:12,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 03:31:12,936 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;@6ca78ef5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 03:31:12,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-17 03:31:12,947 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 03:31:12,947 INFO L124 PetriNetUnfolderBase]: 8/38 cut-off events. [2024-11-17 03:31:12,947 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 03:31:12,947 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:12,948 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] [2024-11-17 03:31:12,948 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:12,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:12,953 INFO L85 PathProgramCache]: Analyzing trace with hash -226805773, now seen corresponding path program 1 times [2024-11-17 03:31:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:12,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313402848] [2024-11-17 03:31:12,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:13,124 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 03:31:13,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:13,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313402848] [2024-11-17 03:31:13,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313402848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:13,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:13,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:31:13,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948425196] [2024-11-17 03:31:13,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:13,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 03:31:13,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 03:31:13,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 03:31:13,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-17 03:31:13,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 41 transitions, 106 flow. Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 03:31:13,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:13,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-17 03:31:13,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:13,380 INFO L124 PetriNetUnfolderBase]: 976/1419 cut-off events. [2024-11-17 03:31:13,380 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-17 03:31:13,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2763 conditions, 1419 events. 976/1419 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 6473 event pairs, 448 based on Foata normal form. 490/1725 useless extension candidates. Maximal degree in co-relation 2356. Up to 1219 conditions per place. [2024-11-17 03:31:13,394 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 22 selfloop transitions, 0 changer transitions 0/35 dead transitions. [2024-11-17 03:31:13,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 138 flow [2024-11-17 03:31:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 03:31:13,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 03:31:13,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 63 transitions. [2024-11-17 03:31:13,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847826086956522 [2024-11-17 03:31:13,433 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 106 flow. Second operand 2 states and 63 transitions. [2024-11-17 03:31:13,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 138 flow [2024-11-17 03:31:13,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 122 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-17 03:31:13,441 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 78 flow [2024-11-17 03:31:13,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=78, PETRI_PLACES=37, PETRI_TRANSITIONS=35} [2024-11-17 03:31:13,473 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2024-11-17 03:31:13,477 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 78 flow [2024-11-17 03:31:13,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 03:31:13,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:13,478 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] [2024-11-17 03:31:13,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 03:31:13,478 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:13,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:13,479 INFO L85 PathProgramCache]: Analyzing trace with hash 309567979, now seen corresponding path program 1 times [2024-11-17 03:31:13,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:13,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358578812] [2024-11-17 03:31:13,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:13,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:13,705 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 03:31:13,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:13,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358578812] [2024-11-17 03:31:13,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358578812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:13,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:13,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 03:31:13,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69925389] [2024-11-17 03:31:13,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:13,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 03:31:13,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:13,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 03:31:13,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 03:31:13,716 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-17 03:31:13,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 35 transitions, 78 flow. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 03:31:13,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:13,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-17 03:31:13,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:13,851 INFO L124 PetriNetUnfolderBase]: 1367/1982 cut-off events. [2024-11-17 03:31:13,852 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-17 03:31:13,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3752 conditions, 1982 events. 1367/1982 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 8797 event pairs, 265 based on Foata normal form. 1/1919 useless extension candidates. Maximal degree in co-relation 3749. Up to 1541 conditions per place. [2024-11-17 03:31:13,866 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 35 selfloop transitions, 5 changer transitions 1/54 dead transitions. [2024-11-17 03:31:13,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 54 transitions, 205 flow [2024-11-17 03:31:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 03:31:13,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 03:31:13,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-17 03:31:13,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2024-11-17 03:31:13,868 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 78 flow. Second operand 3 states and 96 transitions. [2024-11-17 03:31:13,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 54 transitions, 205 flow [2024-11-17 03:31:13,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:31:13,871 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 111 flow [2024-11-17 03:31:13,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=111, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-11-17 03:31:13,873 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2024-11-17 03:31:13,873 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 111 flow [2024-11-17 03:31:13,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 03:31:13,874 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:13,874 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:13,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 03:31:13,874 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:13,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:13,875 INFO L85 PathProgramCache]: Analyzing trace with hash 909737470, now seen corresponding path program 1 times [2024-11-17 03:31:13,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:13,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45981542] [2024-11-17 03:31:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:13,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:13,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45981542] [2024-11-17 03:31:13,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45981542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:31:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890407010] [2024-11-17 03:31:13,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:13,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:31:13,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:31:13,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 03:31:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:14,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 03:31:14,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:31:14,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:14,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:31:14,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:14,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890407010] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:31:14,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:31:14,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-17 03:31:14,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911602181] [2024-11-17 03:31:14,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:31:14,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:31:14,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:31:14,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:31:14,287 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:14,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 03:31:14,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:14,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:14,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:14,684 INFO L124 PetriNetUnfolderBase]: 3505/4964 cut-off events. [2024-11-17 03:31:14,684 INFO L125 PetriNetUnfolderBase]: For 1394/1394 co-relation queries the response was YES. [2024-11-17 03:31:14,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11463 conditions, 4964 events. 3505/4964 cut-off events. For 1394/1394 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 26482 event pairs, 966 based on Foata normal form. 87/4792 useless extension candidates. Maximal degree in co-relation 11458. Up to 1942 conditions per place. [2024-11-17 03:31:14,703 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 74 selfloop transitions, 8 changer transitions 0/93 dead transitions. [2024-11-17 03:31:14,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 93 transitions, 425 flow [2024-11-17 03:31:14,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-17 03:31:14,705 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2024-11-17 03:31:14,705 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 111 flow. Second operand 5 states and 160 transitions. [2024-11-17 03:31:14,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 93 transitions, 425 flow [2024-11-17 03:31:14,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 93 transitions, 420 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 03:31:14,707 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 161 flow [2024-11-17 03:31:14,707 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2024-11-17 03:31:14,708 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2024-11-17 03:31:14,708 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 161 flow [2024-11-17 03:31:14,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 03:31:14,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:14,708 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:14,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 03:31:14,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:14,909 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:14,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:14,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1286996410, now seen corresponding path program 2 times [2024-11-17 03:31:14,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:14,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448967117] [2024-11-17 03:31:14,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:14,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:14,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:15,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:15,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:15,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448967117] [2024-11-17 03:31:15,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448967117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:15,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:15,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:15,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366998736] [2024-11-17 03:31:15,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:15,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:15,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:15,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:15,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:15,019 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:15,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 161 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:15,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:15,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:15,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:15,532 INFO L124 PetriNetUnfolderBase]: 2888/4089 cut-off events. [2024-11-17 03:31:15,536 INFO L125 PetriNetUnfolderBase]: For 3171/3171 co-relation queries the response was YES. [2024-11-17 03:31:15,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10797 conditions, 4089 events. 2888/4089 cut-off events. For 3171/3171 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 21011 event pairs, 280 based on Foata normal form. 68/4088 useless extension candidates. Maximal degree in co-relation 10789. Up to 1376 conditions per place. [2024-11-17 03:31:15,580 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 73 selfloop transitions, 11 changer transitions 0/95 dead transitions. [2024-11-17 03:31:15,580 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 95 transitions, 492 flow [2024-11-17 03:31:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-11-17 03:31:15,582 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6739130434782609 [2024-11-17 03:31:15,582 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 161 flow. Second operand 5 states and 155 transitions. [2024-11-17 03:31:15,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 95 transitions, 492 flow [2024-11-17 03:31:15,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 95 transitions, 492 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:31:15,595 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 222 flow [2024-11-17 03:31:15,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=222, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2024-11-17 03:31:15,596 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2024-11-17 03:31:15,596 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 222 flow [2024-11-17 03:31:15,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:15,596 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:15,596 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:15,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 03:31:15,597 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:15,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:15,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1949432876, now seen corresponding path program 1 times [2024-11-17 03:31:15,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:15,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743920670] [2024-11-17 03:31:15,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:15,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:15,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:15,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:15,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743920670] [2024-11-17 03:31:15,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743920670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:15,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:15,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:15,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23043105] [2024-11-17 03:31:15,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:15,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:15,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:15,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:15,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:15,746 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:15,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:15,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:15,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:15,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:16,017 INFO L124 PetriNetUnfolderBase]: 2808/3851 cut-off events. [2024-11-17 03:31:16,017 INFO L125 PetriNetUnfolderBase]: For 4510/4510 co-relation queries the response was YES. [2024-11-17 03:31:16,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10951 conditions, 3851 events. 2808/3851 cut-off events. For 4510/4510 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 18687 event pairs, 400 based on Foata normal form. 80/3887 useless extension candidates. Maximal degree in co-relation 10941. Up to 1298 conditions per place. [2024-11-17 03:31:16,036 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 73 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-17 03:31:16,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 92 transitions, 501 flow [2024-11-17 03:31:16,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:16,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2024-11-17 03:31:16,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6652173913043479 [2024-11-17 03:31:16,037 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 222 flow. Second operand 5 states and 153 transitions. [2024-11-17 03:31:16,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 92 transitions, 501 flow [2024-11-17 03:31:16,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 92 transitions, 490 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-17 03:31:16,042 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 225 flow [2024-11-17 03:31:16,042 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2024-11-17 03:31:16,043 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-17 03:31:16,043 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 225 flow [2024-11-17 03:31:16,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,043 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:16,043 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:16,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 03:31:16,044 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:16,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:16,044 INFO L85 PathProgramCache]: Analyzing trace with hash -153884646, now seen corresponding path program 1 times [2024-11-17 03:31:16,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:16,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17714394] [2024-11-17 03:31:16,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:16,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:16,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:16,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17714394] [2024-11-17 03:31:16,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17714394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:16,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:16,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:16,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29697885] [2024-11-17 03:31:16,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:16,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:16,113 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:16,113 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,113 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:16,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:16,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:16,431 INFO L124 PetriNetUnfolderBase]: 4403/6296 cut-off events. [2024-11-17 03:31:16,432 INFO L125 PetriNetUnfolderBase]: For 5251/5450 co-relation queries the response was YES. [2024-11-17 03:31:16,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16339 conditions, 6296 events. 4403/6296 cut-off events. For 5251/5450 co-relation queries the response was YES. Maximal size of possible extension queue 497. Compared 37890 event pairs, 870 based on Foata normal form. 123/6077 useless extension candidates. Maximal degree in co-relation 16328. Up to 2373 conditions per place. [2024-11-17 03:31:16,466 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 78 selfloop transitions, 8 changer transitions 0/102 dead transitions. [2024-11-17 03:31:16,466 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 102 transitions, 627 flow [2024-11-17 03:31:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2024-11-17 03:31:16,467 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-11-17 03:31:16,467 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 225 flow. Second operand 5 states and 150 transitions. [2024-11-17 03:31:16,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 102 transitions, 627 flow [2024-11-17 03:31:16,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 612 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-17 03:31:16,471 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 269 flow [2024-11-17 03:31:16,471 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=269, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-11-17 03:31:16,471 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2024-11-17 03:31:16,471 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 269 flow [2024-11-17 03:31:16,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,472 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:16,472 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:16,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 03:31:16,472 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:16,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash -497746822, now seen corresponding path program 2 times [2024-11-17 03:31:16,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:16,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403855549] [2024-11-17 03:31:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:16,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:16,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:16,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403855549] [2024-11-17 03:31:16,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403855549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:16,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:16,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:16,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082391658] [2024-11-17 03:31:16,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:16,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:16,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:16,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:16,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:16,532 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:16,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 269 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:16,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:16,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:16,817 INFO L124 PetriNetUnfolderBase]: 3685/5245 cut-off events. [2024-11-17 03:31:16,817 INFO L125 PetriNetUnfolderBase]: For 6984/7147 co-relation queries the response was YES. [2024-11-17 03:31:16,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15870 conditions, 5245 events. 3685/5245 cut-off events. For 6984/7147 co-relation queries the response was YES. Maximal size of possible extension queue 407. Compared 29815 event pairs, 232 based on Foata normal form. 81/5075 useless extension candidates. Maximal degree in co-relation 15855. Up to 1794 conditions per place. [2024-11-17 03:31:16,845 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 77 selfloop transitions, 11 changer transitions 0/104 dead transitions. [2024-11-17 03:31:16,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 682 flow [2024-11-17 03:31:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 147 transitions. [2024-11-17 03:31:16,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6391304347826087 [2024-11-17 03:31:16,847 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 269 flow. Second operand 5 states and 147 transitions. [2024-11-17 03:31:16,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 682 flow [2024-11-17 03:31:16,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 682 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 03:31:16,854 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 330 flow [2024-11-17 03:31:16,854 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-17 03:31:16,855 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2024-11-17 03:31:16,855 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 330 flow [2024-11-17 03:31:16,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,855 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:16,855 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:16,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 03:31:16,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:16,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:16,856 INFO L85 PathProgramCache]: Analyzing trace with hash 872815956, now seen corresponding path program 1 times [2024-11-17 03:31:16,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:16,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338830537] [2024-11-17 03:31:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:16,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:16,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:16,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338830537] [2024-11-17 03:31:16,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338830537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:16,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:16,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941095752] [2024-11-17 03:31:16,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:16,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:16,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:16,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:16,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:16,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:16,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:16,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:16,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:16,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:17,216 INFO L124 PetriNetUnfolderBase]: 3603/5054 cut-off events. [2024-11-17 03:31:17,216 INFO L125 PetriNetUnfolderBase]: For 8672/8835 co-relation queries the response was YES. [2024-11-17 03:31:17,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16438 conditions, 5054 events. 3603/5054 cut-off events. For 8672/8835 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 28353 event pairs, 178 based on Foata normal form. 83/4886 useless extension candidates. Maximal degree in co-relation 16421. Up to 1689 conditions per place. [2024-11-17 03:31:17,244 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 77 selfloop transitions, 8 changer transitions 0/101 dead transitions. [2024-11-17 03:31:17,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 691 flow [2024-11-17 03:31:17,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:17,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:17,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-11-17 03:31:17,247 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-17 03:31:17,247 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 330 flow. Second operand 5 states and 145 transitions. [2024-11-17 03:31:17,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 691 flow [2024-11-17 03:31:17,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 680 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-17 03:31:17,254 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 333 flow [2024-11-17 03:31:17,255 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=301, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=333, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-11-17 03:31:17,255 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2024-11-17 03:31:17,255 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 333 flow [2024-11-17 03:31:17,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:17,256 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:17,256 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:17,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 03:31:17,256 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:17,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:17,256 INFO L85 PathProgramCache]: Analyzing trace with hash 444023652, now seen corresponding path program 2 times [2024-11-17 03:31:17,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857175315] [2024-11-17 03:31:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:17,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:17,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:17,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:17,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:17,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857175315] [2024-11-17 03:31:17,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857175315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 03:31:17,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 03:31:17,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 03:31:17,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344127868] [2024-11-17 03:31:17,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 03:31:17,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 03:31:17,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:17,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 03:31:17,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 03:31:17,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:17,314 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 333 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:17,314 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:17,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:17,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:17,626 INFO L124 PetriNetUnfolderBase]: 3483/5044 cut-off events. [2024-11-17 03:31:17,626 INFO L125 PetriNetUnfolderBase]: For 9864/10027 co-relation queries the response was YES. [2024-11-17 03:31:17,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16548 conditions, 5044 events. 3483/5044 cut-off events. For 9864/10027 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 30017 event pairs, 916 based on Foata normal form. 121/4880 useless extension candidates. Maximal degree in co-relation 16530. Up to 2571 conditions per place. [2024-11-17 03:31:17,653 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 76 selfloop transitions, 8 changer transitions 0/100 dead transitions. [2024-11-17 03:31:17,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 100 transitions, 711 flow [2024-11-17 03:31:17,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:17,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2024-11-17 03:31:17,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6217391304347826 [2024-11-17 03:31:17,655 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 333 flow. Second operand 5 states and 143 transitions. [2024-11-17 03:31:17,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 100 transitions, 711 flow [2024-11-17 03:31:17,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 100 transitions, 698 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-17 03:31:17,660 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 373 flow [2024-11-17 03:31:17,661 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=373, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-17 03:31:17,662 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2024-11-17 03:31:17,662 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 373 flow [2024-11-17 03:31:17,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 03:31:17,662 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:17,662 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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 03:31:17,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 03:31:17,662 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:17,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:17,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1106855556, now seen corresponding path program 2 times [2024-11-17 03:31:17,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:17,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153464544] [2024-11-17 03:31:17,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:17,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:17,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:17,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153464544] [2024-11-17 03:31:17,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153464544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:31:17,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958483976] [2024-11-17 03:31:17,739 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:31:17,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:31:17,742 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:31:17,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 03:31:17,801 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:31:17,801 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:31:17,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 03:31:17,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:31:17,883 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:17,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:31:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:17,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1958483976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:31:17,923 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:31:17,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-17 03:31:17,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064945150] [2024-11-17 03:31:17,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:31:17,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 03:31:17,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 03:31:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 03:31:17,937 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:17,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 60 transitions, 373 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 03:31:17,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:17,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:17,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:18,359 INFO L124 PetriNetUnfolderBase]: 3445/5119 cut-off events. [2024-11-17 03:31:18,360 INFO L125 PetriNetUnfolderBase]: For 12041/12119 co-relation queries the response was YES. [2024-11-17 03:31:18,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18164 conditions, 5119 events. 3445/5119 cut-off events. For 12041/12119 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 30190 event pairs, 1484 based on Foata normal form. 134/4865 useless extension candidates. Maximal degree in co-relation 18143. Up to 2511 conditions per place. [2024-11-17 03:31:18,398 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 92 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2024-11-17 03:31:18,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 117 transitions, 869 flow [2024-11-17 03:31:18,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 03:31:18,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 03:31:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-11-17 03:31:18,399 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6565217391304348 [2024-11-17 03:31:18,399 INFO L175 Difference]: Start difference. First operand has 75 places, 60 transitions, 373 flow. Second operand 5 states and 151 transitions. [2024-11-17 03:31:18,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 117 transitions, 869 flow [2024-11-17 03:31:18,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 117 transitions, 823 flow, removed 14 selfloop flow, removed 2 redundant places. [2024-11-17 03:31:18,408 INFO L231 Difference]: Finished difference. Result has 79 places, 63 transitions, 404 flow [2024-11-17 03:31:18,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=79, PETRI_TRANSITIONS=63} [2024-11-17 03:31:18,408 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2024-11-17 03:31:18,409 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 63 transitions, 404 flow [2024-11-17 03:31:18,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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 03:31:18,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:18,409 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 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 03:31:18,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 03:31:18,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-17 03:31:18,614 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:18,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:18,614 INFO L85 PathProgramCache]: Analyzing trace with hash 655662159, now seen corresponding path program 1 times [2024-11-17 03:31:18,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:18,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499832051] [2024-11-17 03:31:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:18,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:18,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499832051] [2024-11-17 03:31:18,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499832051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:31:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916775743] [2024-11-17 03:31:18,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:18,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:18,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:31:18,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:31:18,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 03:31:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:19,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 03:31:19,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:31:21,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:21,315 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:31:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:21,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916775743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:31:21,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:31:21,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2024-11-17 03:31:21,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847942553] [2024-11-17 03:31:21,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:31:21,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 03:31:21,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:31:21,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 03:31:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-17 03:31:22,519 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-17 03:31:22,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 63 transitions, 404 flow. Second operand has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 14 states have internal predecessors, (282), 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 03:31:22,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:31:22,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-17 03:31:22,523 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:31:26,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:31:32,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:31:33,059 INFO L124 PetriNetUnfolderBase]: 5298/7972 cut-off events. [2024-11-17 03:31:33,060 INFO L125 PetriNetUnfolderBase]: For 20124/20466 co-relation queries the response was YES. [2024-11-17 03:31:33,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28973 conditions, 7972 events. 5298/7972 cut-off events. For 20124/20466 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 51164 event pairs, 781 based on Foata normal form. 2/7668 useless extension candidates. Maximal degree in co-relation 28950. Up to 4436 conditions per place. [2024-11-17 03:31:33,113 INFO L140 encePairwiseOnDemand]: 39/46 looper letters, 135 selfloop transitions, 31 changer transitions 6/189 dead transitions. [2024-11-17 03:31:33,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 189 transitions, 1321 flow [2024-11-17 03:31:33,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 03:31:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 03:31:33,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 295 transitions. [2024-11-17 03:31:33,114 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7125603864734299 [2024-11-17 03:31:33,115 INFO L175 Difference]: Start difference. First operand has 79 places, 63 transitions, 404 flow. Second operand 9 states and 295 transitions. [2024-11-17 03:31:33,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 189 transitions, 1321 flow [2024-11-17 03:31:33,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 189 transitions, 1285 flow, removed 13 selfloop flow, removed 2 redundant places. [2024-11-17 03:31:33,129 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 738 flow [2024-11-17 03:31:33,129 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=738, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-11-17 03:31:33,130 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 44 predicate places. [2024-11-17 03:31:33,130 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 738 flow [2024-11-17 03:31:33,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 20.142857142857142) internal successors, (282), 14 states have internal predecessors, (282), 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 03:31:33,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 03:31:33,130 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 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 03:31:33,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 03:31:33,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:33,335 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-17 03:31:33,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 03:31:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1518264151, now seen corresponding path program 2 times [2024-11-17 03:31:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 03:31:33,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061098921] [2024-11-17 03:31:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 03:31:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 03:31:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 03:31:33,712 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:31:33,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 03:31:33,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061098921] [2024-11-17 03:31:33,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061098921] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 03:31:33,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674574400] [2024-11-17 03:31:33,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 03:31:33,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 03:31:33,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 03:31:33,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 03:31:33,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 03:31:33,822 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 03:31:33,823 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 03:31:33,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 03:31:33,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 03:32:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:32:35,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 03:32:36,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 03:32:36,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674574400] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 03:32:36,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 03:32:36,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-17 03:32:36,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788507550] [2024-11-17 03:32:36,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 03:32:36,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-17 03:32:36,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 03:32:36,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-17 03:32:36,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=150, Unknown=2, NotChecked=0, Total=240 [2024-11-17 03:32:38,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:32:40,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:32:40,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-17 03:32:40,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 738 flow. Second operand has 16 states, 16 states have (on average 18.125) internal successors, (290), 16 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 03:32:40,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 03:32:40,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-17 03:32:40,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 03:32:47,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:32:51,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-17 03:32:55,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []