./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/weaver/bench-exp2x3.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/weaver/bench-exp2x3.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 f25d9c7e70f7f3d19e85c7cfc6427443102f5451f704dd6a19dd9a78d021a612 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:11:43,137 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:11:43,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:11:43,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:11:43,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:11:43,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:11:43,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:11:43,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:11:43,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:11:43,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:11:43,237 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:11:43,238 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:11:43,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:11:43,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:11:43,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:11:43,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:11:43,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:11:43,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:11:43,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:11:43,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:11:43,242 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:11:43,246 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:11:43,247 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:11:43,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:11:43,247 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:11:43,247 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:11:43,248 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:11:43,248 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:11:43,248 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:11:43,248 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:11:43,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:11:43,249 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:11:43,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:11:43,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:11:43,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:11:43,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:11:43,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:11:43,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:11:43,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:11:43,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:11:43,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:11:43,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:11:43,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25d9c7e70f7f3d19e85c7cfc6427443102f5451f704dd6a19dd9a78d021a612 [2024-11-10 18:11:43,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:11:43,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:11:43,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:11:43,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:11:43,583 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:11:43,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/bench-exp2x3.wvr.c [2024-11-10 18:11:45,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:11:45,227 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:11:45,227 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/bench-exp2x3.wvr.c [2024-11-10 18:11:45,236 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ada75f7c/f2d863be0b3d4fc3a89779213d04fa60/FLAG7362853af [2024-11-10 18:11:45,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ada75f7c/f2d863be0b3d4fc3a89779213d04fa60 [2024-11-10 18:11:45,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:11:45,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:11:45,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:11:45,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:11:45,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:11:45,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c8318a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45, skipping insertion in model container [2024-11-10 18:11:45,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:11:45,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:11:45,532 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:11:45,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:11:45,577 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:11:45,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45 WrapperNode [2024-11-10 18:11:45,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:11:45,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:11:45,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:11:45,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:11:45,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,620 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2024-11-10 18:11:45,623 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:11:45,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:11:45,625 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:11:45,625 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:11:45,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,664 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]. [2024-11-10 18:11:45,665 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,665 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,669 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:11:45,675 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:11:45,676 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:11:45,676 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:11:45,677 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (1/1) ... [2024-11-10 18:11:45,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:11:45,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:11:45,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:11:45,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:11:45,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:11:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 18:11:45,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 18:11:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 18:11:45,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 18:11:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 18:11:45,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 18:11:45,766 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-10 18:11:45,766 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-10 18:11:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:11:45,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:11:45,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:11:45,768 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:11:45,956 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:11:45,962 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:11:46,210 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:11:46,211 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:11:46,346 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:11:46,347 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:11:46,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:11:46 BoogieIcfgContainer [2024-11-10 18:11:46,347 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:11:46,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:11:46,353 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:11:46,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:11:46,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:11:45" (1/3) ... [2024-11-10 18:11:46,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a21301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:11:46, skipping insertion in model container [2024-11-10 18:11:46,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:11:45" (2/3) ... [2024-11-10 18:11:46,359 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a21301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:11:46, skipping insertion in model container [2024-11-10 18:11:46,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:11:46" (3/3) ... [2024-11-10 18:11:46,360 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x3.wvr.c [2024-11-10 18:11:46,380 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:11:46,380 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 18:11:46,380 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:11:46,445 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 18:11:46,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 46 transitions, 120 flow [2024-11-10 18:11:46,527 INFO L124 PetriNetUnfolderBase]: 8/42 cut-off events. [2024-11-10 18:11:46,528 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:11:46,534 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 51 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. [2024-11-10 18:11:46,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 46 transitions, 120 flow [2024-11-10 18:11:46,537 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 41 transitions, 106 flow [2024-11-10 18:11:46,546 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:11:46,555 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;@40d04f28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:11:46,555 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 18:11:46,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:11:46,570 INFO L124 PetriNetUnfolderBase]: 8/38 cut-off events. [2024-11-10 18:11:46,570 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:11:46,570 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:46,571 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] [2024-11-10 18:11:46,572 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)] === [2024-11-10 18:11:46,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash -939939867, now seen corresponding path program 1 times [2024-11-10 18:11:46,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:46,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254923483] [2024-11-10 18:11:46,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:46,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:46,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:46,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254923483] [2024-11-10 18:11:46,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254923483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:46,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:46,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:11:46,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035027069] [2024-11-10 18:11:46,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:46,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:11:46,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:11:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:11:46,837 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-10 18:11:46,839 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) [2024-11-10 18:11:46,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:46,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-10 18:11:46,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:47,173 INFO L124 PetriNetUnfolderBase]: 976/1419 cut-off events. [2024-11-10 18:11:47,173 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-10 18:11:47,179 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. 520/1779 useless extension candidates. Maximal degree in co-relation 2356. Up to 1219 conditions per place. [2024-11-10 18:11:47,194 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 22 selfloop transitions, 0 changer transitions 0/35 dead transitions. [2024-11-10 18:11:47,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 35 transitions, 138 flow [2024-11-10 18:11:47,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:11:47,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:11:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 63 transitions. [2024-11-10 18:11:47,235 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6847826086956522 [2024-11-10 18:11:47,241 INFO L175 Difference]: Start difference. First operand has 46 places, 41 transitions, 106 flow. Second operand 2 states and 63 transitions. [2024-11-10 18:11:47,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 35 transitions, 138 flow [2024-11-10 18:11:47,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 35 transitions, 122 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-10 18:11:47,262 INFO L231 Difference]: Finished difference. Result has 37 places, 35 transitions, 78 flow [2024-11-10 18:11:47,264 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} [2024-11-10 18:11:47,267 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -9 predicate places. [2024-11-10 18:11:47,270 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 35 transitions, 78 flow [2024-11-10 18:11:47,271 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) [2024-11-10 18:11:47,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:47,271 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] [2024-11-10 18:11:47,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:11:47,272 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)] === [2024-11-10 18:11:47,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:47,274 INFO L85 PathProgramCache]: Analyzing trace with hash 877363195, now seen corresponding path program 1 times [2024-11-10 18:11:47,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:47,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394671706] [2024-11-10 18:11:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:47,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:47,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:47,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394671706] [2024-11-10 18:11:47,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394671706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:47,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:47,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:11:47,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428332344] [2024-11-10 18:11:47,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:47,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:11:47,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:47,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:11:47,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:11:47,672 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 46 [2024-11-10 18:11:47,672 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) [2024-11-10 18:11:47,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:47,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 46 [2024-11-10 18:11:47,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:47,938 INFO L124 PetriNetUnfolderBase]: 1367/1982 cut-off events. [2024-11-10 18:11:47,940 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2024-11-10 18:11:47,944 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 8790 event pairs, 265 based on Foata normal form. 1/1929 useless extension candidates. Maximal degree in co-relation 3749. Up to 1541 conditions per place. [2024-11-10 18:11:47,957 INFO L140 encePairwiseOnDemand]: 40/46 looper letters, 35 selfloop transitions, 5 changer transitions 1/54 dead transitions. [2024-11-10 18:11:47,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 54 transitions, 205 flow [2024-11-10 18:11:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:11:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:11:47,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-10 18:11:47,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6956521739130435 [2024-11-10 18:11:47,960 INFO L175 Difference]: Start difference. First operand has 37 places, 35 transitions, 78 flow. Second operand 3 states and 96 transitions. [2024-11-10 18:11:47,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 54 transitions, 205 flow [2024-11-10 18:11:47,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 205 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:11:47,965 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 111 flow [2024-11-10 18:11:47,965 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} [2024-11-10 18:11:47,966 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -6 predicate places. [2024-11-10 18:11:47,967 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 111 flow [2024-11-10 18:11:47,967 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) [2024-11-10 18:11:47,967 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:47,967 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] [2024-11-10 18:11:47,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:11:47,969 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)] === [2024-11-10 18:11:47,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:47,970 INFO L85 PathProgramCache]: Analyzing trace with hash 162472726, now seen corresponding path program 1 times [2024-11-10 18:11:47,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:47,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933397658] [2024-11-10 18:11:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:47,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:48,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:48,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933397658] [2024-11-10 18:11:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933397658] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:48,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:48,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:48,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574063768] [2024-11-10 18:11:48,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:48,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:48,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:48,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:48,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:48,165 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:48,166 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 111 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) [2024-11-10 18:11:48,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:48,168 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:48,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:48,614 INFO L124 PetriNetUnfolderBase]: 2975/4057 cut-off events. [2024-11-10 18:11:48,614 INFO L125 PetriNetUnfolderBase]: For 1209/1209 co-relation queries the response was YES. [2024-11-10 18:11:48,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9490 conditions, 4057 events. 2975/4057 cut-off events. For 1209/1209 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 19181 event pairs, 475 based on Foata normal form. 68/4083 useless extension candidates. Maximal degree in co-relation 9485. Up to 1437 conditions per place. [2024-11-10 18:11:48,647 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 71 selfloop transitions, 10 changer transitions 0/92 dead transitions. [2024-11-10 18:11:48,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 92 transitions, 423 flow [2024-11-10 18:11:48,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:48,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:48,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 155 transitions. [2024-11-10 18:11:48,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6739130434782609 [2024-11-10 18:11:48,652 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 111 flow. Second operand 5 states and 155 transitions. [2024-11-10 18:11:48,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 92 transitions, 423 flow [2024-11-10 18:11:48,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 92 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 18:11:48,656 INFO L231 Difference]: Finished difference. Result has 45 places, 46 transitions, 171 flow [2024-11-10 18:11:48,657 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=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=171, PETRI_PLACES=45, PETRI_TRANSITIONS=46} [2024-11-10 18:11:48,658 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2024-11-10 18:11:48,659 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 46 transitions, 171 flow [2024-11-10 18:11:48,659 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) [2024-11-10 18:11:48,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:48,660 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] [2024-11-10 18:11:48,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:11:48,660 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)] === [2024-11-10 18:11:48,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:48,661 INFO L85 PathProgramCache]: Analyzing trace with hash 772991294, now seen corresponding path program 2 times [2024-11-10 18:11:48,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:48,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379000555] [2024-11-10 18:11:48,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:48,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:48,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:48,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379000555] [2024-11-10 18:11:48,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379000555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:48,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:48,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:48,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585582139] [2024-11-10 18:11:48,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:48,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:48,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:48,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:48,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:48,803 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:48,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 46 transitions, 171 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) [2024-11-10 18:11:48,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:48,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:48,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:49,211 INFO L124 PetriNetUnfolderBase]: 2816/4089 cut-off events. [2024-11-10 18:11:49,211 INFO L125 PetriNetUnfolderBase]: For 3409/3409 co-relation queries the response was YES. [2024-11-10 18:11:49,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10774 conditions, 4089 events. 2816/4089 cut-off events. For 3409/3409 co-relation queries the response was YES. Maximal size of possible extension queue 277. Compared 22134 event pairs, 667 based on Foata normal form. 87/3976 useless extension candidates. Maximal degree in co-relation 10767. Up to 1942 conditions per place. [2024-11-10 18:11:49,249 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 70 selfloop transitions, 10 changer transitions 0/91 dead transitions. [2024-11-10 18:11:49,249 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 91 transitions, 470 flow [2024-11-10 18:11:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:49,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:49,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-10 18:11:49,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6695652173913044 [2024-11-10 18:11:49,253 INFO L175 Difference]: Start difference. First operand has 45 places, 46 transitions, 171 flow. Second operand 5 states and 154 transitions. [2024-11-10 18:11:49,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 91 transitions, 470 flow [2024-11-10 18:11:49,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 91 transitions, 470 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:11:49,261 INFO L231 Difference]: Finished difference. Result has 51 places, 49 transitions, 225 flow [2024-11-10 18:11:49,262 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=51, PETRI_TRANSITIONS=49} [2024-11-10 18:11:49,262 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2024-11-10 18:11:49,263 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 49 transitions, 225 flow [2024-11-10 18:11:49,264 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) [2024-11-10 18:11:49,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:49,265 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] [2024-11-10 18:11:49,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:11:49,266 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)] === [2024-11-10 18:11:49,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:49,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1240090106, now seen corresponding path program 1 times [2024-11-10 18:11:49,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:49,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830538590] [2024-11-10 18:11:49,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:49,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:49,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830538590] [2024-11-10 18:11:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830538590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:49,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:49,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805305980] [2024-11-10 18:11:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:49,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:49,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:49,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:49,395 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:49,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 49 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) [2024-11-10 18:11:49,397 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:49,397 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:49,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:49,838 INFO L124 PetriNetUnfolderBase]: 2808/3855 cut-off events. [2024-11-10 18:11:49,839 INFO L125 PetriNetUnfolderBase]: For 5593/5593 co-relation queries the response was YES. [2024-11-10 18:11:49,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11307 conditions, 3855 events. 2808/3855 cut-off events. For 5593/5593 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 19076 event pairs, 212 based on Foata normal form. 80/3887 useless extension candidates. Maximal degree in co-relation 11297. Up to 1298 conditions per place. [2024-11-10 18:11:49,871 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 73 selfloop transitions, 8 changer transitions 0/92 dead transitions. [2024-11-10 18:11:49,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 92 transitions, 506 flow [2024-11-10 18:11:49,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:49,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:49,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 153 transitions. [2024-11-10 18:11:49,874 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6652173913043479 [2024-11-10 18:11:49,874 INFO L175 Difference]: Start difference. First operand has 51 places, 49 transitions, 225 flow. Second operand 5 states and 153 transitions. [2024-11-10 18:11:49,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 92 transitions, 506 flow [2024-11-10 18:11:49,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 92 transitions, 497 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 18:11:49,887 INFO L231 Difference]: Finished difference. Result has 55 places, 48 transitions, 230 flow [2024-11-10 18:11:49,887 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=198, 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=230, PETRI_PLACES=55, PETRI_TRANSITIONS=48} [2024-11-10 18:11:49,888 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 9 predicate places. [2024-11-10 18:11:49,888 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 48 transitions, 230 flow [2024-11-10 18:11:49,889 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) [2024-11-10 18:11:49,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:49,889 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] [2024-11-10 18:11:49,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 18:11:49,890 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)] === [2024-11-10 18:11:49,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1967775494, now seen corresponding path program 1 times [2024-11-10 18:11:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:49,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533788427] [2024-11-10 18:11:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:49,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:49,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533788427] [2024-11-10 18:11:49,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533788427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:11:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816731106] [2024-11-10 18:11:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:49,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:11:49,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:11:49,986 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) [2024-11-10 18:11:49,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 18:11:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:50,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:11:50,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:11:50,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:50,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:11:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:50,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816731106] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:11:50,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:11:50,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-10 18:11:50,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799802834] [2024-11-10 18:11:50,417 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:11:50,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:11:50,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:50,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:11:50,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:11:50,444 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:50,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 48 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:11:50,446 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:50,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:50,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:51,297 INFO L124 PetriNetUnfolderBase]: 4800/6793 cut-off events. [2024-11-10 18:11:51,297 INFO L125 PetriNetUnfolderBase]: For 11275/11830 co-relation queries the response was YES. [2024-11-10 18:11:51,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19044 conditions, 6793 events. 4800/6793 cut-off events. For 11275/11830 co-relation queries the response was YES. Maximal size of possible extension queue 529. Compared 40459 event pairs, 914 based on Foata normal form. 177/6484 useless extension candidates. Maximal degree in co-relation 19033. Up to 2547 conditions per place. [2024-11-10 18:11:51,357 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 78 selfloop transitions, 8 changer transitions 0/102 dead transitions. [2024-11-10 18:11:51,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 102 transitions, 658 flow [2024-11-10 18:11:51,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 150 transitions. [2024-11-10 18:11:51,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6521739130434783 [2024-11-10 18:11:51,359 INFO L175 Difference]: Start difference. First operand has 55 places, 48 transitions, 230 flow. Second operand 5 states and 150 transitions. [2024-11-10 18:11:51,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 102 transitions, 658 flow [2024-11-10 18:11:51,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 102 transitions, 645 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 18:11:51,365 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 276 flow [2024-11-10 18:11:51,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=221, 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=276, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-11-10 18:11:51,368 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 15 predicate places. [2024-11-10 18:11:51,368 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 276 flow [2024-11-10 18:11:51,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:11:51,369 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:51,369 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] [2024-11-10 18:11:51,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 18:11:51,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-10 18:11:51,570 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)] === [2024-11-10 18:11:51,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash 841625418, now seen corresponding path program 2 times [2024-11-10 18:11:51,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:51,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420818025] [2024-11-10 18:11:51,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:51,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:51,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:51,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420818025] [2024-11-10 18:11:51,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420818025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:51,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:51,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:51,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076705163] [2024-11-10 18:11:51,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:51,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:51,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:51,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:51,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:51,667 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:51,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 276 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) [2024-11-10 18:11:51,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:51,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:51,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:52,297 INFO L124 PetriNetUnfolderBase]: 4018/5660 cut-off events. [2024-11-10 18:11:52,297 INFO L125 PetriNetUnfolderBase]: For 12155/12602 co-relation queries the response was YES. [2024-11-10 18:11:52,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18249 conditions, 5660 events. 4018/5660 cut-off events. For 12155/12602 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 32030 event pairs, 244 based on Foata normal form. 121/5412 useless extension candidates. Maximal degree in co-relation 18234. Up to 1938 conditions per place. [2024-11-10 18:11:52,359 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 77 selfloop transitions, 11 changer transitions 0/104 dead transitions. [2024-11-10 18:11:52,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 104 transitions, 715 flow [2024-11-10 18:11:52,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 147 transitions. [2024-11-10 18:11:52,362 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6391304347826087 [2024-11-10 18:11:52,362 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 276 flow. Second operand 5 states and 147 transitions. [2024-11-10 18:11:52,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 104 transitions, 715 flow [2024-11-10 18:11:52,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 104 transitions, 715 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:11:52,379 INFO L231 Difference]: Finished difference. Result has 66 places, 58 transitions, 337 flow [2024-11-10 18:11:52,379 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=276, 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=337, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2024-11-10 18:11:52,380 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 20 predicate places. [2024-11-10 18:11:52,381 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 337 flow [2024-11-10 18:11:52,381 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) [2024-11-10 18:11:52,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:52,381 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] [2024-11-10 18:11:52,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 18:11:52,382 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)] === [2024-11-10 18:11:52,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:52,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2035214812, now seen corresponding path program 1 times [2024-11-10 18:11:52,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:52,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954995149] [2024-11-10 18:11:52,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:52,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:52,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:52,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:52,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:52,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954995149] [2024-11-10 18:11:52,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954995149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:52,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:52,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:52,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760692080] [2024-11-10 18:11:52,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:52,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:52,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:52,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:52,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:52,508 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:52,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 337 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) [2024-11-10 18:11:52,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:52,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:52,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:53,109 INFO L124 PetriNetUnfolderBase]: 3932/5459 cut-off events. [2024-11-10 18:11:53,109 INFO L125 PetriNetUnfolderBase]: For 14147/14594 co-relation queries the response was YES. [2024-11-10 18:11:53,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18847 conditions, 5459 events. 3932/5459 cut-off events. For 14147/14594 co-relation queries the response was YES. Maximal size of possible extension queue 435. Compared 30315 event pairs, 186 based on Foata normal form. 123/5213 useless extension candidates. Maximal degree in co-relation 18830. Up to 1852 conditions per place. [2024-11-10 18:11:53,161 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 77 selfloop transitions, 8 changer transitions 0/101 dead transitions. [2024-11-10 18:11:53,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 101 transitions, 724 flow [2024-11-10 18:11:53,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:53,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:53,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 145 transitions. [2024-11-10 18:11:53,166 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6304347826086957 [2024-11-10 18:11:53,166 INFO L175 Difference]: Start difference. First operand has 66 places, 58 transitions, 337 flow. Second operand 5 states and 145 transitions. [2024-11-10 18:11:53,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 101 transitions, 724 flow [2024-11-10 18:11:53,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 713 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 18:11:53,182 INFO L231 Difference]: Finished difference. Result has 70 places, 57 transitions, 340 flow [2024-11-10 18:11:53,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=308, 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=340, PETRI_PLACES=70, PETRI_TRANSITIONS=57} [2024-11-10 18:11:53,183 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2024-11-10 18:11:53,183 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 57 transitions, 340 flow [2024-11-10 18:11:53,183 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) [2024-11-10 18:11:53,183 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:53,183 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] [2024-11-10 18:11:53,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 18:11:53,184 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)] === [2024-11-10 18:11:53,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1758094420, now seen corresponding path program 2 times [2024-11-10 18:11:53,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:53,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111212173] [2024-11-10 18:11:53,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:53,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:53,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:53,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111212173] [2024-11-10 18:11:53,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111212173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:11:53,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:11:53,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 18:11:53,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020553773] [2024-11-10 18:11:53,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:11:53,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:11:53,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:53,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:11:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:11:53,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:53,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 57 transitions, 340 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) [2024-11-10 18:11:53,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:53,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:53,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:53,785 INFO L124 PetriNetUnfolderBase]: 3806/5451 cut-off events. [2024-11-10 18:11:53,785 INFO L125 PetriNetUnfolderBase]: For 15241/15688 co-relation queries the response was YES. [2024-11-10 18:11:53,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18965 conditions, 5451 events. 3806/5451 cut-off events. For 15241/15688 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 32238 event pairs, 962 based on Foata normal form. 163/5210 useless extension candidates. Maximal degree in co-relation 18947. Up to 2773 conditions per place. [2024-11-10 18:11:53,839 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 76 selfloop transitions, 8 changer transitions 0/100 dead transitions. [2024-11-10 18:11:53,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 100 transitions, 744 flow [2024-11-10 18:11:53,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:53,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:53,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2024-11-10 18:11:53,840 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6217391304347826 [2024-11-10 18:11:53,840 INFO L175 Difference]: Start difference. First operand has 70 places, 57 transitions, 340 flow. Second operand 5 states and 143 transitions. [2024-11-10 18:11:53,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 100 transitions, 744 flow [2024-11-10 18:11:53,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 100 transitions, 731 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-10 18:11:53,855 INFO L231 Difference]: Finished difference. Result has 75 places, 60 transitions, 380 flow [2024-11-10 18:11:53,855 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=329, 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=380, PETRI_PLACES=75, PETRI_TRANSITIONS=60} [2024-11-10 18:11:53,856 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 29 predicate places. [2024-11-10 18:11:53,856 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 60 transitions, 380 flow [2024-11-10 18:11:53,856 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) [2024-11-10 18:11:53,856 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:53,857 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] [2024-11-10 18:11:53,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 18:11:53,857 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)] === [2024-11-10 18:11:53,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:53,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1931596928, now seen corresponding path program 2 times [2024-11-10 18:11:53,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:53,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942733168] [2024-11-10 18:11:53,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:53,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:53,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:53,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:53,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942733168] [2024-11-10 18:11:53,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942733168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:11:53,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948914803] [2024-11-10 18:11:53,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:11:53,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:11:53,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:11:53,976 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) [2024-11-10 18:11:53,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 18:11:54,046 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:11:54,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:11:54,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-10 18:11:54,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:11:54,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:54,182 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:11:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948914803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:11:54,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:11:54,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-10 18:11:54,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897390211] [2024-11-10 18:11:54,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:11:54,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 18:11:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:11:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 18:11:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-10 18:11:54,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:11:54,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 60 transitions, 380 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) [2024-11-10 18:11:54,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:11:54,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:11:54,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:11:54,820 INFO L124 PetriNetUnfolderBase]: 3438/5163 cut-off events. [2024-11-10 18:11:54,820 INFO L125 PetriNetUnfolderBase]: For 14771/14852 co-relation queries the response was YES. [2024-11-10 18:11:54,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19021 conditions, 5163 events. 3438/5163 cut-off events. For 14771/14852 co-relation queries the response was YES. Maximal size of possible extension queue 335. Compared 30848 event pairs, 1476 based on Foata normal form. 137/4954 useless extension candidates. Maximal degree in co-relation 19000. Up to 2511 conditions per place. [2024-11-10 18:11:54,871 INFO L140 encePairwiseOnDemand]: 41/46 looper letters, 92 selfloop transitions, 8 changer transitions 0/117 dead transitions. [2024-11-10 18:11:54,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 117 transitions, 886 flow [2024-11-10 18:11:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 18:11:54,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 18:11:54,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-11-10 18:11:54,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6565217391304348 [2024-11-10 18:11:54,873 INFO L175 Difference]: Start difference. First operand has 75 places, 60 transitions, 380 flow. Second operand 5 states and 151 transitions. [2024-11-10 18:11:54,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 117 transitions, 886 flow [2024-11-10 18:11:54,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 117 transitions, 840 flow, removed 14 selfloop flow, removed 2 redundant places. [2024-11-10 18:11:54,891 INFO L231 Difference]: Finished difference. Result has 79 places, 63 transitions, 417 flow [2024-11-10 18:11:54,891 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=360, 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=417, PETRI_PLACES=79, PETRI_TRANSITIONS=63} [2024-11-10 18:11:54,892 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2024-11-10 18:11:54,892 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 63 transitions, 417 flow [2024-11-10 18:11:54,892 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) [2024-11-10 18:11:54,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:11:54,892 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] [2024-11-10 18:11:54,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 18:11:55,093 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 [2024-11-10 18:11:55,094 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)] === [2024-11-10 18:11:55,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:11:55,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1287464129, now seen corresponding path program 1 times [2024-11-10 18:11:55,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:11:55,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152410288] [2024-11-10 18:11:55,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:55,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:11:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:11:55,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:11:55,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152410288] [2024-11-10 18:11:55,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152410288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:11:55,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973867036] [2024-11-10 18:11:55,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:11:55,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:11:55,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:11:55,685 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) [2024-11-10 18:11:55,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 18:11:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:11:55,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:11:55,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:12:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:12:26,675 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:12:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:12:28,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973867036] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:12:28,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:12:28,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-10 18:12:28,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375542399] [2024-11-10 18:12:28,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:12:28,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:12:28,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:12:28,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:12:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=168, Unknown=1, NotChecked=0, Total=240 [2024-11-10 18:12:31,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-10 18:12:35,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-10 18:12:35,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 46 [2024-11-10 18:12:35,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 63 transitions, 417 flow. Second operand has 16 states, 16 states have (on average 17.9375) internal successors, (287), 16 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:12:35,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:12:35,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 46 [2024-11-10 18:12:35,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:12:42,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-10 18:12:50,989 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 [] [2024-11-10 18:12:52,918 INFO L124 PetriNetUnfolderBase]: 11433/16466 cut-off events. [2024-11-10 18:12:52,918 INFO L125 PetriNetUnfolderBase]: For 54982/54982 co-relation queries the response was YES. [2024-11-10 18:12:52,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64475 conditions, 16466 events. 11433/16466 cut-off events. For 54982/54982 co-relation queries the response was YES. Maximal size of possible extension queue 840. Compared 104144 event pairs, 1151 based on Foata normal form. 64/16452 useless extension candidates. Maximal degree in co-relation 64452. Up to 7055 conditions per place. [2024-11-10 18:12:53,064 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 263 selfloop transitions, 100 changer transitions 19/391 dead transitions. [2024-11-10 18:12:53,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 391 transitions, 2996 flow [2024-11-10 18:12:53,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-10 18:12:53,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-10 18:12:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 508 transitions. [2024-11-10 18:12:53,068 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6902173913043478 [2024-11-10 18:12:53,068 INFO L175 Difference]: Start difference. First operand has 79 places, 63 transitions, 417 flow. Second operand 16 states and 508 transitions. [2024-11-10 18:12:53,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 391 transitions, 2996 flow [2024-11-10 18:12:53,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 391 transitions, 2975 flow, removed 8 selfloop flow, removed 1 redundant places. [2024-11-10 18:12:53,152 INFO L231 Difference]: Finished difference. Result has 103 places, 161 transitions, 1634 flow [2024-11-10 18:12:53,152 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1634, PETRI_PLACES=103, PETRI_TRANSITIONS=161} [2024-11-10 18:12:53,153 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 57 predicate places. [2024-11-10 18:12:53,153 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 161 transitions, 1634 flow [2024-11-10 18:12:53,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.9375) internal successors, (287), 16 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:12:53,154 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:12:53,154 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] [2024-11-10 18:12:53,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 18:12:53,354 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 [2024-11-10 18:12:53,355 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)] === [2024-11-10 18:12:53,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:12:53,355 INFO L85 PathProgramCache]: Analyzing trace with hash 291337511, now seen corresponding path program 2 times [2024-11-10 18:12:53,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:12:53,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812486466] [2024-11-10 18:12:53,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:12:53,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:12:53,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:12:53,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:12:53,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:12:53,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812486466] [2024-11-10 18:12:53,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812486466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:12:53,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580762299] [2024-11-10 18:12:53,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 18:12:53,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:12:53,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:12:53,849 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) [2024-11-10 18:12:53,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 18:12:54,088 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 18:12:54,088 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 18:12:54,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:12:54,091 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:12:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:12:55,695 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:12:56,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:12:56,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580762299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:12:56,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:12:56,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-10 18:12:56,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110231168] [2024-11-10 18:12:56,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:12:56,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:12:56,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:12:56,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:12:56,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:12:56,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:12:56,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 161 transitions, 1634 flow. Second operand has 16 states, 16 states have (on average 19.6875) internal successors, (315), 16 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:12:56,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:12:56,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:12:56,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:13:04,139 INFO L124 PetriNetUnfolderBase]: 13578/20095 cut-off events. [2024-11-10 18:13:04,139 INFO L125 PetriNetUnfolderBase]: For 113679/114774 co-relation queries the response was YES. [2024-11-10 18:13:04,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88772 conditions, 20095 events. 13578/20095 cut-off events. For 113679/114774 co-relation queries the response was YES. Maximal size of possible extension queue 1435. Compared 142438 event pairs, 1416 based on Foata normal form. 117/19644 useless extension candidates. Maximal degree in co-relation 88738. Up to 10596 conditions per place. [2024-11-10 18:13:04,597 INFO L140 encePairwiseOnDemand]: 38/46 looper letters, 333 selfloop transitions, 175 changer transitions 7/532 dead transitions. [2024-11-10 18:13:04,597 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 532 transitions, 5043 flow [2024-11-10 18:13:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-10 18:13:04,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-10 18:13:04,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 726 transitions. [2024-11-10 18:13:04,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.657608695652174 [2024-11-10 18:13:04,600 INFO L175 Difference]: Start difference. First operand has 103 places, 161 transitions, 1634 flow. Second operand 24 states and 726 transitions. [2024-11-10 18:13:04,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 532 transitions, 5043 flow [2024-11-10 18:13:04,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 532 transitions, 4776 flow, removed 131 selfloop flow, removed 1 redundant places. [2024-11-10 18:13:04,814 INFO L231 Difference]: Finished difference. Result has 140 places, 301 transitions, 3682 flow [2024-11-10 18:13:04,814 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1383, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=3682, PETRI_PLACES=140, PETRI_TRANSITIONS=301} [2024-11-10 18:13:04,815 INFO L277 CegarLoopForPetriNet]: 46 programPoint places, 94 predicate places. [2024-11-10 18:13:04,815 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 301 transitions, 3682 flow [2024-11-10 18:13:04,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.6875) internal successors, (315), 16 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:13:04,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:13:04,816 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] [2024-11-10 18:13:04,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 18:13:05,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:13:05,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 18:13:05,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:13:05,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1286221551, now seen corresponding path program 1 times [2024-11-10 18:13:05,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:13:05,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96983501] [2024-11-10 18:13:05,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:13:05,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:13:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:13:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:13:05,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:13:05,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96983501] [2024-11-10 18:13:05,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96983501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 18:13:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413970274] [2024-11-10 18:13:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:13:05,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 18:13:05,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:13:05,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 18:13:05,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 18:13:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:13:05,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 18:13:05,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 18:13:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:13:08,370 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 18:13:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:13:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413970274] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 18:13:09,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 18:13:09,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 15 [2024-11-10 18:13:09,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042229628] [2024-11-10 18:13:09,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 18:13:09,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 18:13:09,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:13:09,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 18:13:09,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2024-11-10 18:13:09,629 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 46 [2024-11-10 18:13:09,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 301 transitions, 3682 flow. Second operand has 16 states, 16 states have (on average 19.875) internal successors, (318), 16 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 18:13:09,629 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:13:09,629 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 46 [2024-11-10 18:13:09,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:13:12,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []