./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/safe013_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/safe013_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0cdeed82108b12e5d5525e3abe542fd48b9a422ac7475147d5db7c8538ce4dc0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 21:31:05,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 21:31:05,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-22 21:31:05,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 21:31:05,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 21:31:05,989 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 21:31:05,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 21:31:05,990 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 21:31:05,990 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 21:31:05,991 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 21:31:05,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 21:31:05,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 21:31:05,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 21:31:05,993 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 21:31:05,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 21:31:05,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 21:31:05,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 21:31:05,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 21:31:05,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 21:31:05,996 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 21:31:05,996 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-22 21:31:05,997 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-22 21:31:05,997 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-22 21:31:05,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 21:31:05,998 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-22 21:31:05,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 21:31:05,999 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-22 21:31:05,999 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 21:31:05,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 21:31:05,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 21:31:06,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 21:31:06,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 21:31:06,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 21:31:06,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:31:06,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 21:31:06,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 21:31:06,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 21:31:06,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 21:31:06,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 21:31:06,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 21:31:06,002 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 21:31:06,002 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 21:31:06,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cdeed82108b12e5d5525e3abe542fd48b9a422ac7475147d5db7c8538ce4dc0 [2024-11-22 21:31:06,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 21:31:06,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 21:31:06,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 21:31:06,233 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 21:31:06,233 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 21:31:06,234 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe013_tso.i [2024-11-22 21:31:07,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 21:31:07,670 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 21:31:07,670 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe013_tso.i [2024-11-22 21:31:07,684 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5dfcdde/daea938246f242978482d068f0dc516a/FLAGbcdb683d7 [2024-11-22 21:31:07,698 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5dfcdde/daea938246f242978482d068f0dc516a [2024-11-22 21:31:07,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 21:31:07,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 21:31:07,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 21:31:07,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 21:31:07,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 21:31:07,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:31:07" (1/1) ... [2024-11-22 21:31:07,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@629fb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:07, skipping insertion in model container [2024-11-22 21:31:07,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:31:07" (1/1) ... [2024-11-22 21:31:07,745 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 21:31:08,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:31:08,010 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 21:31:08,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 21:31:08,079 INFO L204 MainTranslator]: Completed translation [2024-11-22 21:31:08,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08 WrapperNode [2024-11-22 21:31:08,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 21:31:08,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 21:31:08,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 21:31:08,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 21:31:08,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,119 INFO L138 Inliner]: procedures = 175, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2024-11-22 21:31:08,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 21:31:08,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 21:31:08,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 21:31:08,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 21:31:08,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,128 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,130 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,140 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]. [2024-11-22 21:31:08,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,147 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,147 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 21:31:08,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 21:31:08,150 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 21:31:08,150 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 21:31:08,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (1/1) ... [2024-11-22 21:31:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 21:31:08,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 21:31:08,182 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) [2024-11-22 21:31:08,183 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 [2024-11-22 21:31:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-22 21:31:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-22 21:31:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-22 21:31:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 21:31:08,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 21:31:08,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 21:31:08,238 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 21:31:08,355 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 21:31:08,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 21:31:08,483 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 21:31:08,483 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 21:31:08,544 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 21:31:08,545 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 21:31:08,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:31:08 BoogieIcfgContainer [2024-11-22 21:31:08,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 21:31:08,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 21:31:08,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 21:31:08,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 21:31:08,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:31:07" (1/3) ... [2024-11-22 21:31:08,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1775726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:31:08, skipping insertion in model container [2024-11-22 21:31:08,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:31:08" (2/3) ... [2024-11-22 21:31:08,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1775726c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:31:08, skipping insertion in model container [2024-11-22 21:31:08,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:31:08" (3/3) ... [2024-11-22 21:31:08,552 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2024-11-22 21:31:08,566 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 21:31:08,566 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 21:31:08,566 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 21:31:08,607 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 21:31:08,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-22 21:31:08,657 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-22 21:31:08,657 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:31:08,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-22 21:31:08,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-22 21:31:08,664 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 40 transitions, 89 flow [2024-11-22 21:31:08,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 21:31:08,684 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;@17b512a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 21:31:08,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-22 21:31:08,702 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 21:31:08,702 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2024-11-22 21:31:08,702 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:31:08,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:08,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:08,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:08,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 166983522, now seen corresponding path program 1 times [2024-11-22 21:31:08,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:08,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014617081] [2024-11-22 21:31:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:08,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:08,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:08,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014617081] [2024-11-22 21:31:08,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014617081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:08,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:08,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 21:31:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062081242] [2024-11-22 21:31:08,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:08,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 21:31:08,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:08,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 21:31:08,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 21:31:08,967 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 44 [2024-11-22 21:31:08,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 89 flow. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-22 21:31:08,969 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:08,969 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 44 [2024-11-22 21:31:08,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:09,046 INFO L124 PetriNetUnfolderBase]: 75/220 cut-off events. [2024-11-22 21:31:09,046 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:31:09,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 375 conditions, 220 events. 75/220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1211 event pairs, 75 based on Foata normal form. 24/225 useless extension candidates. Maximal degree in co-relation 364. Up to 136 conditions per place. [2024-11-22 21:31:09,050 INFO L140 encePairwiseOnDemand]: 40/44 looper letters, 12 selfloop transitions, 1 changer transitions 1/36 dead transitions. [2024-11-22 21:31:09,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 36 transitions, 109 flow [2024-11-22 21:31:09,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 21:31:09,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 21:31:09,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-22 21:31:09,061 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.696969696969697 [2024-11-22 21:31:09,062 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 89 flow. Second operand 3 states and 92 transitions. [2024-11-22 21:31:09,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 36 transitions, 109 flow [2024-11-22 21:31:09,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 36 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-22 21:31:09,066 INFO L231 Difference]: Finished difference. Result has 45 places, 35 transitions, 78 flow [2024-11-22 21:31:09,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=78, PETRI_PLACES=45, PETRI_TRANSITIONS=35} [2024-11-22 21:31:09,071 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2024-11-22 21:31:09,071 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 35 transitions, 78 flow [2024-11-22 21:31:09,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-22 21:31:09,072 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:09,072 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:09,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 21:31:09,072 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:09,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:09,072 INFO L85 PathProgramCache]: Analyzing trace with hash 166985015, now seen corresponding path program 1 times [2024-11-22 21:31:09,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:09,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93403527] [2024-11-22 21:31:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:09,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:09,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:09,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93403527] [2024-11-22 21:31:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93403527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:09,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:31:09,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990111054] [2024-11-22 21:31:09,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:09,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:31:09,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:09,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:31:09,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:31:09,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-22 21:31:09,305 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 35 transitions, 78 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-22 21:31:09,305 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:09,305 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-22 21:31:09,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:09,661 INFO L124 PetriNetUnfolderBase]: 761/1484 cut-off events. [2024-11-22 21:31:09,662 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 21:31:09,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732 conditions, 1484 events. 761/1484 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 11179 event pairs, 178 based on Foata normal form. 0/1416 useless extension candidates. Maximal degree in co-relation 2726. Up to 491 conditions per place. [2024-11-22 21:31:09,672 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 27 selfloop transitions, 5 changer transitions 45/93 dead transitions. [2024-11-22 21:31:09,673 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 93 transitions, 352 flow [2024-11-22 21:31:09,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:31:09,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:31:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 259 transitions. [2024-11-22 21:31:09,676 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6540404040404041 [2024-11-22 21:31:09,677 INFO L175 Difference]: Start difference. First operand has 45 places, 35 transitions, 78 flow. Second operand 9 states and 259 transitions. [2024-11-22 21:31:09,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 93 transitions, 352 flow [2024-11-22 21:31:09,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 93 transitions, 351 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 21:31:09,680 INFO L231 Difference]: Finished difference. Result has 57 places, 37 transitions, 128 flow [2024-11-22 21:31:09,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=128, PETRI_PLACES=57, PETRI_TRANSITIONS=37} [2024-11-22 21:31:09,681 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2024-11-22 21:31:09,681 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 37 transitions, 128 flow [2024-11-22 21:31:09,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-22 21:31:09,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:09,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:09,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 21:31:09,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:09,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:09,683 INFO L85 PathProgramCache]: Analyzing trace with hash 27606038, now seen corresponding path program 1 times [2024-11-22 21:31:09,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:09,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100429295] [2024-11-22 21:31:09,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:09,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:09,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:09,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:09,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100429295] [2024-11-22 21:31:09,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100429295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:09,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:09,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:31:09,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151507365] [2024-11-22 21:31:09,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:09,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:09,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:09,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:09,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:09,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-22 21:31:09,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 37 transitions, 128 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-22 21:31:09,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:09,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-22 21:31:09,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:10,100 INFO L124 PetriNetUnfolderBase]: 507/1071 cut-off events. [2024-11-22 21:31:10,100 INFO L125 PetriNetUnfolderBase]: For 1079/1079 co-relation queries the response was YES. [2024-11-22 21:31:10,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2748 conditions, 1071 events. 507/1071 cut-off events. For 1079/1079 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 7507 event pairs, 147 based on Foata normal form. 32/1087 useless extension candidates. Maximal degree in co-relation 2735. Up to 353 conditions per place. [2024-11-22 21:31:10,105 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 28 selfloop transitions, 6 changer transitions 30/80 dead transitions. [2024-11-22 21:31:10,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 431 flow [2024-11-22 21:31:10,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:31:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:31:10,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 266 transitions. [2024-11-22 21:31:10,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6045454545454545 [2024-11-22 21:31:10,107 INFO L175 Difference]: Start difference. First operand has 57 places, 37 transitions, 128 flow. Second operand 10 states and 266 transitions. [2024-11-22 21:31:10,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 431 flow [2024-11-22 21:31:10,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 80 transitions, 393 flow, removed 14 selfloop flow, removed 4 redundant places. [2024-11-22 21:31:10,112 INFO L231 Difference]: Finished difference. Result has 63 places, 38 transitions, 153 flow [2024-11-22 21:31:10,112 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=115, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=153, PETRI_PLACES=63, PETRI_TRANSITIONS=38} [2024-11-22 21:31:10,113 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2024-11-22 21:31:10,113 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 38 transitions, 153 flow [2024-11-22 21:31:10,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-22 21:31:10,113 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:10,113 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:10,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 21:31:10,114 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:10,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:10,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1309478646, now seen corresponding path program 1 times [2024-11-22 21:31:10,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:10,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417320720] [2024-11-22 21:31:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:10,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:10,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:10,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:10,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417320720] [2024-11-22 21:31:10,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417320720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:10,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:10,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:31:10,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829910850] [2024-11-22 21:31:10,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:10,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:10,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:10,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:10,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:10,248 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-22 21:31:10,248 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 38 transitions, 153 flow. Second operand has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-22 21:31:10,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:10,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-22 21:31:10,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:10,416 INFO L124 PetriNetUnfolderBase]: 480/1019 cut-off events. [2024-11-22 21:31:10,417 INFO L125 PetriNetUnfolderBase]: For 1951/1953 co-relation queries the response was YES. [2024-11-22 21:31:10,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2899 conditions, 1019 events. 480/1019 cut-off events. For 1951/1953 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7097 event pairs, 140 based on Foata normal form. 38/1043 useless extension candidates. Maximal degree in co-relation 2880. Up to 394 conditions per place. [2024-11-22 21:31:10,423 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 30 selfloop transitions, 7 changer transitions 30/83 dead transitions. [2024-11-22 21:31:10,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 494 flow [2024-11-22 21:31:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 21:31:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-22 21:31:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 269 transitions. [2024-11-22 21:31:10,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6113636363636363 [2024-11-22 21:31:10,426 INFO L175 Difference]: Start difference. First operand has 63 places, 38 transitions, 153 flow. Second operand 10 states and 269 transitions. [2024-11-22 21:31:10,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 494 flow [2024-11-22 21:31:10,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 83 transitions, 428 flow, removed 24 selfloop flow, removed 8 redundant places. [2024-11-22 21:31:10,435 INFO L231 Difference]: Finished difference. Result has 65 places, 39 transitions, 168 flow [2024-11-22 21:31:10,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=168, PETRI_PLACES=65, PETRI_TRANSITIONS=39} [2024-11-22 21:31:10,436 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-22 21:31:10,436 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 39 transitions, 168 flow [2024-11-22 21:31:10,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 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) [2024-11-22 21:31:10,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:10,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:10,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 21:31:10,437 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:10,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:10,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1746779755, now seen corresponding path program 1 times [2024-11-22 21:31:10,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:10,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757556877] [2024-11-22 21:31:10,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:10,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:10,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:10,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:10,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:10,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757556877] [2024-11-22 21:31:10,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757556877] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:10,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:10,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:31:10,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124458309] [2024-11-22 21:31:10,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:10,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:10,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:10,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:10,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:10,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-22 21:31:10,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 39 transitions, 168 flow. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-22 21:31:10,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:10,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-22 21:31:10,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:10,855 INFO L124 PetriNetUnfolderBase]: 834/1699 cut-off events. [2024-11-22 21:31:10,855 INFO L125 PetriNetUnfolderBase]: For 3111/3113 co-relation queries the response was YES. [2024-11-22 21:31:10,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4825 conditions, 1699 events. 834/1699 cut-off events. For 3111/3113 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11640 event pairs, 73 based on Foata normal form. 46/1734 useless extension candidates. Maximal degree in co-relation 4805. Up to 476 conditions per place. [2024-11-22 21:31:10,864 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 50 selfloop transitions, 18 changer transitions 46/129 dead transitions. [2024-11-22 21:31:10,864 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 129 transitions, 871 flow [2024-11-22 21:31:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-22 21:31:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-22 21:31:10,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 352 transitions. [2024-11-22 21:31:10,865 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6153846153846154 [2024-11-22 21:31:10,865 INFO L175 Difference]: Start difference. First operand has 65 places, 39 transitions, 168 flow. Second operand 13 states and 352 transitions. [2024-11-22 21:31:10,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 129 transitions, 871 flow [2024-11-22 21:31:10,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 129 transitions, 743 flow, removed 41 selfloop flow, removed 8 redundant places. [2024-11-22 21:31:10,872 INFO L231 Difference]: Finished difference. Result has 75 places, 52 transitions, 352 flow [2024-11-22 21:31:10,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=352, PETRI_PLACES=75, PETRI_TRANSITIONS=52} [2024-11-22 21:31:10,873 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-22 21:31:10,873 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 52 transitions, 352 flow [2024-11-22 21:31:10,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 6 states have internal predecessors, (127), 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) [2024-11-22 21:31:10,873 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:10,873 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:10,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 21:31:10,873 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:10,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:10,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1257291337, now seen corresponding path program 2 times [2024-11-22 21:31:10,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:10,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274398500] [2024-11-22 21:31:10,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:31:10,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:10,885 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:31:10,885 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:31:10,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:10,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:10,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274398500] [2024-11-22 21:31:10,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274398500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:10,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:10,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:31:10,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627996140] [2024-11-22 21:31:11,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:11,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 21:31:11,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:11,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 21:31:11,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 21:31:11,012 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-22 21:31:11,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 52 transitions, 352 flow. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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) [2024-11-22 21:31:11,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:11,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-22 21:31:11,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:11,258 INFO L124 PetriNetUnfolderBase]: 905/1874 cut-off events. [2024-11-22 21:31:11,259 INFO L125 PetriNetUnfolderBase]: For 8329/8329 co-relation queries the response was YES. [2024-11-22 21:31:11,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6560 conditions, 1874 events. 905/1874 cut-off events. For 8329/8329 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 13581 event pairs, 129 based on Foata normal form. 45/1887 useless extension candidates. Maximal degree in co-relation 6533. Up to 486 conditions per place. [2024-11-22 21:31:11,267 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 35 selfloop transitions, 9 changer transitions 48/107 dead transitions. [2024-11-22 21:31:11,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 107 transitions, 943 flow [2024-11-22 21:31:11,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 21:31:11,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 21:31:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 243 transitions. [2024-11-22 21:31:11,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-22 21:31:11,268 INFO L175 Difference]: Start difference. First operand has 75 places, 52 transitions, 352 flow. Second operand 9 states and 243 transitions. [2024-11-22 21:31:11,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 107 transitions, 943 flow [2024-11-22 21:31:11,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 107 transitions, 829 flow, removed 57 selfloop flow, removed 6 redundant places. [2024-11-22 21:31:11,279 INFO L231 Difference]: Finished difference. Result has 75 places, 41 transitions, 242 flow [2024-11-22 21:31:11,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=242, PETRI_PLACES=75, PETRI_TRANSITIONS=41} [2024-11-22 21:31:11,280 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-22 21:31:11,280 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 41 transitions, 242 flow [2024-11-22 21:31:11,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 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) [2024-11-22 21:31:11,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:11,280 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] [2024-11-22 21:31:11,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 21:31:11,281 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:11,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:11,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1225219107, now seen corresponding path program 1 times [2024-11-22 21:31:11,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:11,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647413657] [2024-11-22 21:31:11,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:11,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:11,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:11,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647413657] [2024-11-22 21:31:11,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647413657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:11,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:11,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 21:31:11,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137155339] [2024-11-22 21:31:11,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:11,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 21:31:11,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:11,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 21:31:11,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 21:31:11,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-22 21:31:11,381 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 41 transitions, 242 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-22 21:31:11,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:11,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-22 21:31:11,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:11,502 INFO L124 PetriNetUnfolderBase]: 829/1617 cut-off events. [2024-11-22 21:31:11,503 INFO L125 PetriNetUnfolderBase]: For 1950/2020 co-relation queries the response was YES. [2024-11-22 21:31:11,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3946 conditions, 1617 events. 829/1617 cut-off events. For 1950/2020 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 10508 event pairs, 175 based on Foata normal form. 74/1618 useless extension candidates. Maximal degree in co-relation 3925. Up to 782 conditions per place. [2024-11-22 21:31:11,511 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 27 selfloop transitions, 5 changer transitions 0/56 dead transitions. [2024-11-22 21:31:11,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 56 transitions, 340 flow [2024-11-22 21:31:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 21:31:11,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 21:31:11,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2024-11-22 21:31:11,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6931818181818182 [2024-11-22 21:31:11,513 INFO L175 Difference]: Start difference. First operand has 75 places, 41 transitions, 242 flow. Second operand 4 states and 122 transitions. [2024-11-22 21:31:11,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 56 transitions, 340 flow [2024-11-22 21:31:11,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 56 transitions, 269 flow, removed 11 selfloop flow, removed 14 redundant places. [2024-11-22 21:31:11,517 INFO L231 Difference]: Finished difference. Result has 62 places, 45 transitions, 209 flow [2024-11-22 21:31:11,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=209, PETRI_PLACES=62, PETRI_TRANSITIONS=45} [2024-11-22 21:31:11,518 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 14 predicate places. [2024-11-22 21:31:11,518 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 45 transitions, 209 flow [2024-11-22 21:31:11,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2024-11-22 21:31:11,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:11,519 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] [2024-11-22 21:31:11,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 21:31:11,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:11,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:11,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1916360068, now seen corresponding path program 1 times [2024-11-22 21:31:11,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563015465] [2024-11-22 21:31:11,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:11,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:11,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:11,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563015465] [2024-11-22 21:31:11,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563015465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:11,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:11,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 21:31:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410059724] [2024-11-22 21:31:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:11,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 21:31:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:11,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 21:31:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 21:31:11,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-22 21:31:11,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 45 transitions, 209 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-22 21:31:11,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:11,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-22 21:31:11,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:11,707 INFO L124 PetriNetUnfolderBase]: 664/1310 cut-off events. [2024-11-22 21:31:11,707 INFO L125 PetriNetUnfolderBase]: For 667/931 co-relation queries the response was YES. [2024-11-22 21:31:11,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3324 conditions, 1310 events. 664/1310 cut-off events. For 667/931 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7763 event pairs, 57 based on Foata normal form. 75/1331 useless extension candidates. Maximal degree in co-relation 3310. Up to 520 conditions per place. [2024-11-22 21:31:11,713 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 34 selfloop transitions, 8 changer transitions 0/66 dead transitions. [2024-11-22 21:31:11,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 66 transitions, 356 flow [2024-11-22 21:31:11,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 21:31:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 21:31:11,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2024-11-22 21:31:11,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-22 21:31:11,714 INFO L175 Difference]: Start difference. First operand has 62 places, 45 transitions, 209 flow. Second operand 5 states and 154 transitions. [2024-11-22 21:31:11,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 66 transitions, 356 flow [2024-11-22 21:31:11,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 66 transitions, 346 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-22 21:31:11,717 INFO L231 Difference]: Finished difference. Result has 66 places, 49 transitions, 254 flow [2024-11-22 21:31:11,717 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=66, PETRI_TRANSITIONS=49} [2024-11-22 21:31:11,718 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 18 predicate places. [2024-11-22 21:31:11,718 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 49 transitions, 254 flow [2024-11-22 21:31:11,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 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) [2024-11-22 21:31:11,718 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:11,718 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] [2024-11-22 21:31:11,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 21:31:11,718 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:11,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1434478650, now seen corresponding path program 1 times [2024-11-22 21:31:11,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:11,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319241821] [2024-11-22 21:31:11,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:11,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:11,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319241821] [2024-11-22 21:31:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319241821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:11,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 21:31:11,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795872296] [2024-11-22 21:31:11,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:11,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:11,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:11,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:11,807 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-22 21:31:11,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 49 transitions, 254 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-22 21:31:11,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:11,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-22 21:31:11,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:11,917 INFO L124 PetriNetUnfolderBase]: 500/950 cut-off events. [2024-11-22 21:31:11,917 INFO L125 PetriNetUnfolderBase]: For 1470/1995 co-relation queries the response was YES. [2024-11-22 21:31:11,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2942 conditions, 950 events. 500/950 cut-off events. For 1470/1995 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5057 event pairs, 25 based on Foata normal form. 69/969 useless extension candidates. Maximal degree in co-relation 2927. Up to 376 conditions per place. [2024-11-22 21:31:11,921 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 33 selfloop transitions, 11 changer transitions 0/68 dead transitions. [2024-11-22 21:31:11,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 68 transitions, 391 flow [2024-11-22 21:31:11,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:31:11,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:31:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 178 transitions. [2024-11-22 21:31:11,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6742424242424242 [2024-11-22 21:31:11,922 INFO L175 Difference]: Start difference. First operand has 66 places, 49 transitions, 254 flow. Second operand 6 states and 178 transitions. [2024-11-22 21:31:11,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 68 transitions, 391 flow [2024-11-22 21:31:11,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 68 transitions, 369 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-22 21:31:11,924 INFO L231 Difference]: Finished difference. Result has 70 places, 50 transitions, 277 flow [2024-11-22 21:31:11,924 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=70, PETRI_TRANSITIONS=50} [2024-11-22 21:31:11,925 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 22 predicate places. [2024-11-22 21:31:11,925 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 50 transitions, 277 flow [2024-11-22 21:31:11,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-22 21:31:11,925 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:11,925 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] [2024-11-22 21:31:11,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 21:31:11,925 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:11,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:11,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1283076586, now seen corresponding path program 1 times [2024-11-22 21:31:11,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:11,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165987326] [2024-11-22 21:31:11,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 21:31:11,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 21:31:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:12,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:12,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165987326] [2024-11-22 21:31:12,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165987326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:12,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:12,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:31:12,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159040286] [2024-11-22 21:31:12,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:12,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:12,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:12,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:12,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:12,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 44 [2024-11-22 21:31:12,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 50 transitions, 277 flow. Second operand has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-22 21:31:12,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:12,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 44 [2024-11-22 21:31:12,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:12,171 INFO L124 PetriNetUnfolderBase]: 544/1170 cut-off events. [2024-11-22 21:31:12,171 INFO L125 PetriNetUnfolderBase]: For 2066/2271 co-relation queries the response was YES. [2024-11-22 21:31:12,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3496 conditions, 1170 events. 544/1170 cut-off events. For 2066/2271 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 7572 event pairs, 182 based on Foata normal form. 20/1027 useless extension candidates. Maximal degree in co-relation 3480. Up to 411 conditions per place. [2024-11-22 21:31:12,175 INFO L140 encePairwiseOnDemand]: 37/44 looper letters, 19 selfloop transitions, 4 changer transitions 22/69 dead transitions. [2024-11-22 21:31:12,176 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 69 transitions, 419 flow [2024-11-22 21:31:12,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:31:12,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:31:12,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-22 21:31:12,177 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6136363636363636 [2024-11-22 21:31:12,177 INFO L175 Difference]: Start difference. First operand has 70 places, 50 transitions, 277 flow. Second operand 6 states and 162 transitions. [2024-11-22 21:31:12,177 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 69 transitions, 419 flow [2024-11-22 21:31:12,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 69 transitions, 387 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-22 21:31:12,181 INFO L231 Difference]: Finished difference. Result has 73 places, 42 transitions, 211 flow [2024-11-22 21:31:12,182 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=211, PETRI_PLACES=73, PETRI_TRANSITIONS=42} [2024-11-22 21:31:12,183 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 25 predicate places. [2024-11-22 21:31:12,183 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 42 transitions, 211 flow [2024-11-22 21:31:12,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.5) internal successors, (135), 6 states have internal predecessors, (135), 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) [2024-11-22 21:31:12,184 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 21:31:12,184 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] [2024-11-22 21:31:12,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 21:31:12,184 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-22 21:31:12,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 21:31:12,185 INFO L85 PathProgramCache]: Analyzing trace with hash -86096766, now seen corresponding path program 2 times [2024-11-22 21:31:12,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 21:31:12,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440229873] [2024-11-22 21:31:12,186 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 21:31:12,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 21:31:12,196 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 21:31:12,196 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 21:31:12,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 21:31:12,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 21:31:12,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440229873] [2024-11-22 21:31:12,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440229873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 21:31:12,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 21:31:12,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 21:31:12,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056882593] [2024-11-22 21:31:12,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 21:31:12,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 21:31:12,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 21:31:12,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 21:31:12,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 21:31:12,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 44 [2024-11-22 21:31:12,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 42 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-22 21:31:12,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 21:31:12,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 44 [2024-11-22 21:31:12,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 21:31:12,368 INFO L124 PetriNetUnfolderBase]: 121/294 cut-off events. [2024-11-22 21:31:12,368 INFO L125 PetriNetUnfolderBase]: For 269/297 co-relation queries the response was YES. [2024-11-22 21:31:12,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 808 conditions, 294 events. 121/294 cut-off events. For 269/297 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1217 event pairs, 10 based on Foata normal form. 10/276 useless extension candidates. Maximal degree in co-relation 791. Up to 111 conditions per place. [2024-11-22 21:31:12,369 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 0 selfloop transitions, 0 changer transitions 51/51 dead transitions. [2024-11-22 21:31:12,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 51 transitions, 283 flow [2024-11-22 21:31:12,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 21:31:12,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 21:31:12,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 160 transitions. [2024-11-22 21:31:12,371 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6060606060606061 [2024-11-22 21:31:12,372 INFO L175 Difference]: Start difference. First operand has 73 places, 42 transitions, 211 flow. Second operand 6 states and 160 transitions. [2024-11-22 21:31:12,372 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 51 transitions, 283 flow [2024-11-22 21:31:12,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 51 transitions, 233 flow, removed 6 selfloop flow, removed 13 redundant places. [2024-11-22 21:31:12,373 INFO L231 Difference]: Finished difference. Result has 59 places, 0 transitions, 0 flow [2024-11-22 21:31:12,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=59, PETRI_TRANSITIONS=0} [2024-11-22 21:31:12,374 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 11 predicate places. [2024-11-22 21:31:12,374 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 0 transitions, 0 flow [2024-11-22 21:31:12,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 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) [2024-11-22 21:31:12,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-11-22 21:31:12,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-11-22 21:31:12,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-22 21:31:12,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-22 21:31:12,379 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-11-22 21:31:12,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 21:31:12,379 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 21:31:12,381 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-22 21:31:12,382 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 21:31:12,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:31:12 BasicIcfg [2024-11-22 21:31:12,388 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 21:31:12,389 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 21:31:12,389 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 21:31:12,389 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 21:31:12,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:31:08" (3/4) ... [2024-11-22 21:31:12,392 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 21:31:12,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-22 21:31:12,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-22 21:31:12,395 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-22 21:31:12,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-11-22 21:31:12,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-22 21:31:12,399 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-22 21:31:12,400 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-22 21:31:12,471 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 21:31:12,472 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 21:31:12,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 21:31:12,472 INFO L158 Benchmark]: Toolchain (without parser) took 4770.82ms. Allocated memory was 142.6MB in the beginning and 237.0MB in the end (delta: 94.4MB). Free memory was 88.3MB in the beginning and 129.9MB in the end (delta: -41.6MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,473 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 21:31:12,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 64.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,473 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.86ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,473 INFO L158 Benchmark]: Boogie Preprocessor took 29.29ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,473 INFO L158 Benchmark]: RCFGBuilder took 395.53ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 60.7MB in the beginning and 141.3MB in the end (delta: -80.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,474 INFO L158 Benchmark]: TraceAbstraction took 3841.57ms. Allocated memory was 184.5MB in the beginning and 237.0MB in the end (delta: 52.4MB). Free memory was 140.3MB in the beginning and 134.1MB in the end (delta: 6.1MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,474 INFO L158 Benchmark]: Witness Printer took 83.17ms. Allocated memory is still 237.0MB. Free memory was 134.1MB in the beginning and 129.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-22 21:31:12,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 142.6MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.63ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 64.9MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.86ms. Allocated memory is still 142.6MB. Free memory was 64.9MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.29ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 60.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.53ms. Allocated memory was 142.6MB in the beginning and 184.5MB in the end (delta: 41.9MB). Free memory was 60.7MB in the beginning and 141.3MB in the end (delta: -80.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3841.57ms. Allocated memory was 184.5MB in the beginning and 237.0MB in the end (delta: 52.4MB). Free memory was 140.3MB in the beginning and 134.1MB in the end (delta: 6.1MB). Peak memory consumption was 58.6MB. Max. memory is 16.1GB. * Witness Printer took 83.17ms. Allocated memory is still 237.0MB. Free memory was 134.1MB in the beginning and 129.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 778]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 17]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.7s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 454 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 409 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 209 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 968 IncrementalHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 66 mSDtfsCounter, 968 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=5, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 890 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-22 21:31:12,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE