./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a046e57d 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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e310cbbcaa6ee1bb3c2e05a2a5fb7cb2ddde366fa4283fb7922170dd08986ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 12:36:33,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 12:36:33,720 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-13 12:36:33,727 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 12:36:33,729 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 12:36:33,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 12:36:33,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 12:36:33,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 12:36:33,763 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 12:36:33,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 12:36:33,764 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 12:36:33,764 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 12:36:33,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 12:36:33,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 12:36:33,766 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 12:36:33,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 12:36:33,769 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 12:36:33,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 12:36:33,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 12:36:33,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 12:36:33,771 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-13 12:36:33,771 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-13 12:36:33,773 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-13 12:36:33,774 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 12:36:33,774 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-13 12:36:33,774 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 12:36:33,774 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 12:36:33,775 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 12:36:33,775 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 12:36:33,775 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 12:36:33,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 12:36:33,776 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 12:36:33,776 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 12:36:33,777 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:36:33,777 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 12:36:33,777 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 12:36:33,777 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 12:36:33,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 12:36:33,778 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 12:36:33,778 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 12:36:33,778 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 12:36:33,779 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 12:36:33,779 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e310cbbcaa6ee1bb3c2e05a2a5fb7cb2ddde366fa4283fb7922170dd08986ab [2024-10-13 12:36:34,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 12:36:34,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 12:36:34,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 12:36:34,061 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 12:36:34,062 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 12:36:34,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2024-10-13 12:36:35,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 12:36:35,736 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 12:36:35,736 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-collitem-trans.wvr.c [2024-10-13 12:36:35,745 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b162b78/a0849fe476cc41c9b1f45ce1ed68d8dd/FLAGce01c996e [2024-10-13 12:36:36,135 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b162b78/a0849fe476cc41c9b1f45ce1ed68d8dd [2024-10-13 12:36:36,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 12:36:36,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 12:36:36,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 12:36:36,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 12:36:36,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 12:36:36,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ccc1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36, skipping insertion in model container [2024-10-13 12:36:36,148 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 12:36:36,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:36:36,383 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 12:36:36,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 12:36:36,428 INFO L204 MainTranslator]: Completed translation [2024-10-13 12:36:36,429 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36 WrapperNode [2024-10-13 12:36:36,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 12:36:36,430 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 12:36:36,430 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 12:36:36,431 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 12:36:36,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,481 INFO L138 Inliner]: procedures = 22, calls = 31, calls flagged for inlining = 18, calls inlined = 40, statements flattened = 347 [2024-10-13 12:36:36,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 12:36:36,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 12:36:36,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 12:36:36,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 12:36:36,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,493 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,497 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,513 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]. [2024-10-13 12:36:36,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,522 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,533 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 12:36:36,534 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 12:36:36,534 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 12:36:36,534 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 12:36:36,535 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (1/1) ... [2024-10-13 12:36:36,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 12:36:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 12:36:36,575 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) [2024-10-13 12:36:36,577 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 [2024-10-13 12:36:36,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 12:36:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 12:36:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 12:36:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 12:36:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 12:36:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-13 12:36:36,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-13 12:36:36,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 12:36:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-13 12:36:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-13 12:36:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 12:36:36,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 12:36:36,618 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 12:36:36,711 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 12:36:36,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 12:36:37,287 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 12:36:37,287 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 12:36:37,808 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 12:36:37,812 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-13 12:36:37,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:37 BoogieIcfgContainer [2024-10-13 12:36:37,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 12:36:37,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 12:36:37,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 12:36:37,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 12:36:37,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:36:36" (1/3) ... [2024-10-13 12:36:37,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d5518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:37, skipping insertion in model container [2024-10-13 12:36:37,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:36:36" (2/3) ... [2024-10-13 12:36:37,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d5518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:36:37, skipping insertion in model container [2024-10-13 12:36:37,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:37" (3/3) ... [2024-10-13 12:36:37,821 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-collitem-trans.wvr.c [2024-10-13 12:36:37,837 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 12:36:37,838 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-13 12:36:37,838 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 12:36:37,973 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-13 12:36:38,048 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2024-10-13 12:36:38,081 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-13 12:36:38,081 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 12:36:38,083 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 24 events. 0/24 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-10-13 12:36:38,083 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2024-10-13 12:36:38,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2024-10-13 12:36:38,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 12:36:38,101 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;@29dd2176, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 12:36:38,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-13 12:36:38,115 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 12:36:38,116 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-10-13 12:36:38,116 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-13 12:36:38,116 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:38,117 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] [2024-10-13 12:36:38,117 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:38,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:38,122 INFO L85 PathProgramCache]: Analyzing trace with hash -853145437, now seen corresponding path program 1 times [2024-10-13 12:36:38,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:38,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452371832] [2024-10-13 12:36:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:38,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:41,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:41,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:41,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452371832] [2024-10-13 12:36:41,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452371832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:41,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:41,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:41,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257639841] [2024-10-13 12:36:41,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:41,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:41,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:41,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:41,068 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:41,071 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 23 transitions, 64 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:41,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:41,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:41,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:41,524 INFO L124 PetriNetUnfolderBase]: 178/331 cut-off events. [2024-10-13 12:36:41,524 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-10-13 12:36:41,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 331 events. 178/331 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1248 event pairs, 10 based on Foata normal form. 3/333 useless extension candidates. Maximal degree in co-relation 634. Up to 110 conditions per place. [2024-10-13 12:36:41,532 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 34 selfloop transitions, 6 changer transitions 8/52 dead transitions. [2024-10-13 12:36:41,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 52 transitions, 248 flow [2024-10-13 12:36:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-13 12:36:41,544 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-13 12:36:41,546 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 6 states and 99 transitions. [2024-10-13 12:36:41,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 52 transitions, 248 flow [2024-10-13 12:36:41,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 52 transitions, 216 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 12:36:41,557 INFO L231 Difference]: Finished difference. Result has 33 places, 25 transitions, 81 flow [2024-10-13 12:36:41,558 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=81, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2024-10-13 12:36:41,562 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 0 predicate places. [2024-10-13 12:36:41,564 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 81 flow [2024-10-13 12:36:41,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:41,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:41,565 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] [2024-10-13 12:36:41,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 12:36:41,566 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:41,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:41,567 INFO L85 PathProgramCache]: Analyzing trace with hash 2094322117, now seen corresponding path program 2 times [2024-10-13 12:36:41,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:41,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001741996] [2024-10-13 12:36:41,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:41,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:43,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:43,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001741996] [2024-10-13 12:36:43,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001741996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:43,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:43,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:43,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087607437] [2024-10-13 12:36:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:43,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:43,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:43,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:43,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:43,617 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:43,617 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 81 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:43,617 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:43,618 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:43,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:44,023 INFO L124 PetriNetUnfolderBase]: 194/366 cut-off events. [2024-10-13 12:36:44,023 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-10-13 12:36:44,027 INFO L83 FinitePrefix]: Finished finitePrefix Result has 871 conditions, 366 events. 194/366 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1495 event pairs, 28 based on Foata normal form. 1/366 useless extension candidates. Maximal degree in co-relation 857. Up to 151 conditions per place. [2024-10-13 12:36:44,030 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 33 selfloop transitions, 6 changer transitions 12/55 dead transitions. [2024-10-13 12:36:44,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 55 transitions, 262 flow [2024-10-13 12:36:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-10-13 12:36:44,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-10-13 12:36:44,034 INFO L175 Difference]: Start difference. First operand has 33 places, 25 transitions, 81 flow. Second operand 6 states and 99 transitions. [2024-10-13 12:36:44,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 55 transitions, 262 flow [2024-10-13 12:36:44,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 55 transitions, 258 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-10-13 12:36:44,038 INFO L231 Difference]: Finished difference. Result has 38 places, 24 transitions, 92 flow [2024-10-13 12:36:44,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=79, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=38, PETRI_TRANSITIONS=24} [2024-10-13 12:36:44,039 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-10-13 12:36:44,040 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 24 transitions, 92 flow [2024-10-13 12:36:44,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:44,041 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:44,041 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] [2024-10-13 12:36:44,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 12:36:44,041 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:44,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:44,042 INFO L85 PathProgramCache]: Analyzing trace with hash -379942447, now seen corresponding path program 3 times [2024-10-13 12:36:44,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:44,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256804054] [2024-10-13 12:36:44,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:44,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:45,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256804054] [2024-10-13 12:36:45,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256804054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:45,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:45,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:45,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378792627] [2024-10-13 12:36:45,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:45,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:45,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:45,832 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:45,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 24 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:45,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:45,835 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:45,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:46,192 INFO L124 PetriNetUnfolderBase]: 189/369 cut-off events. [2024-10-13 12:36:46,194 INFO L125 PetriNetUnfolderBase]: For 331/331 co-relation queries the response was YES. [2024-10-13 12:36:46,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 934 conditions, 369 events. 189/369 cut-off events. For 331/331 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1528 event pairs, 16 based on Foata normal form. 1/369 useless extension candidates. Maximal degree in co-relation 914. Up to 190 conditions per place. [2024-10-13 12:36:46,200 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 31 selfloop transitions, 5 changer transitions 11/51 dead transitions. [2024-10-13 12:36:46,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-10-13 12:36:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:46,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:46,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 96 transitions. [2024-10-13 12:36:46,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-13 12:36:46,203 INFO L175 Difference]: Start difference. First operand has 38 places, 24 transitions, 92 flow. Second operand 6 states and 96 transitions. [2024-10-13 12:36:46,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-10-13 12:36:46,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 237 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-10-13 12:36:46,207 INFO L231 Difference]: Finished difference. Result has 40 places, 24 transitions, 92 flow [2024-10-13 12:36:46,208 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=40, PETRI_TRANSITIONS=24} [2024-10-13 12:36:46,209 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 7 predicate places. [2024-10-13 12:36:46,209 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 24 transitions, 92 flow [2024-10-13 12:36:46,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:46,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:46,210 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] [2024-10-13 12:36:46,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 12:36:46,211 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:46,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:46,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1029630383, now seen corresponding path program 4 times [2024-10-13 12:36:46,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:46,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546634262] [2024-10-13 12:36:46,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:46,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:48,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:48,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546634262] [2024-10-13 12:36:48,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546634262] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:48,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:48,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:48,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584486969] [2024-10-13 12:36:48,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:48,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:48,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:48,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:48,524 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:48,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 24 transitions, 92 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:48,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:48,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:48,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:48,862 INFO L124 PetriNetUnfolderBase]: 138/270 cut-off events. [2024-10-13 12:36:48,863 INFO L125 PetriNetUnfolderBase]: For 216/216 co-relation queries the response was YES. [2024-10-13 12:36:48,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 685 conditions, 270 events. 138/270 cut-off events. For 216/216 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 998 event pairs, 9 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 669. Up to 93 conditions per place. [2024-10-13 12:36:48,865 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 30 selfloop transitions, 5 changer transitions 10/49 dead transitions. [2024-10-13 12:36:48,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 49 transitions, 248 flow [2024-10-13 12:36:48,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:48,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:48,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2024-10-13 12:36:48,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5802469135802469 [2024-10-13 12:36:48,869 INFO L175 Difference]: Start difference. First operand has 40 places, 24 transitions, 92 flow. Second operand 6 states and 94 transitions. [2024-10-13 12:36:48,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 49 transitions, 248 flow [2024-10-13 12:36:48,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 49 transitions, 233 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-13 12:36:48,872 INFO L231 Difference]: Finished difference. Result has 42 places, 24 transitions, 96 flow [2024-10-13 12:36:48,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=96, PETRI_PLACES=42, PETRI_TRANSITIONS=24} [2024-10-13 12:36:48,873 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-10-13 12:36:48,875 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 24 transitions, 96 flow [2024-10-13 12:36:48,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:48,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:48,876 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] [2024-10-13 12:36:48,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 12:36:48,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:48,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1207943783, now seen corresponding path program 5 times [2024-10-13 12:36:48,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:48,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173127402] [2024-10-13 12:36:48,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:48,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:50,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:50,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173127402] [2024-10-13 12:36:50,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173127402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:50,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:50,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:50,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75296654] [2024-10-13 12:36:50,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:50,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:50,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:50,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:50,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:50,708 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:50,708 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 24 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:50,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:50,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:50,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:51,021 INFO L124 PetriNetUnfolderBase]: 106/213 cut-off events. [2024-10-13 12:36:51,022 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-10-13 12:36:51,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 574 conditions, 213 events. 106/213 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 734 event pairs, 20 based on Foata normal form. 1/214 useless extension candidates. Maximal degree in co-relation 562. Up to 109 conditions per place. [2024-10-13 12:36:51,023 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 19 selfloop transitions, 3 changer transitions 16/42 dead transitions. [2024-10-13 12:36:51,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 42 transitions, 220 flow [2024-10-13 12:36:51,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:51,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 87 transitions. [2024-10-13 12:36:51,025 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5370370370370371 [2024-10-13 12:36:51,025 INFO L175 Difference]: Start difference. First operand has 42 places, 24 transitions, 96 flow. Second operand 6 states and 87 transitions. [2024-10-13 12:36:51,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 42 transitions, 220 flow [2024-10-13 12:36:51,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 42 transitions, 215 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-13 12:36:51,027 INFO L231 Difference]: Finished difference. Result has 44 places, 21 transitions, 77 flow [2024-10-13 12:36:51,027 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=44, PETRI_TRANSITIONS=21} [2024-10-13 12:36:51,028 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 11 predicate places. [2024-10-13 12:36:51,028 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 21 transitions, 77 flow [2024-10-13 12:36:51,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:51,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 12:36:51,029 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] [2024-10-13 12:36:51,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-13 12:36:51,029 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-10-13 12:36:51,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 12:36:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 632130497, now seen corresponding path program 6 times [2024-10-13 12:36:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 12:36:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034434007] [2024-10-13 12:36:51,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 12:36:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 12:36:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 12:36:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 12:36:53,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 12:36:53,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034434007] [2024-10-13 12:36:53,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034434007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 12:36:53,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 12:36:53,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-13 12:36:53,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498128073] [2024-10-13 12:36:53,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 12:36:53,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 12:36:53,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 12:36:53,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 12:36:53,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-13 12:36:53,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-13 12:36:53,490 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 21 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:53,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 12:36:53,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-13 12:36:53,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 12:36:53,736 INFO L124 PetriNetUnfolderBase]: 42/89 cut-off events. [2024-10-13 12:36:53,737 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-10-13 12:36:53,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 249 conditions, 89 events. 42/89 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 187 event pairs, 0 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 240. Up to 54 conditions per place. [2024-10-13 12:36:53,738 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 0 selfloop transitions, 0 changer transitions 26/26 dead transitions. [2024-10-13 12:36:53,738 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 26 transitions, 132 flow [2024-10-13 12:36:53,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 12:36:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 12:36:53,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 72 transitions. [2024-10-13 12:36:53,739 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4444444444444444 [2024-10-13 12:36:53,739 INFO L175 Difference]: Start difference. First operand has 44 places, 21 transitions, 77 flow. Second operand 6 states and 72 transitions. [2024-10-13 12:36:53,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 26 transitions, 132 flow [2024-10-13 12:36:53,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 26 transitions, 115 flow, removed 1 selfloop flow, removed 8 redundant places. [2024-10-13 12:36:53,741 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-10-13 12:36:53,741 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-10-13 12:36:53,742 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-10-13 12:36:53,742 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-10-13 12:36:53,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 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) [2024-10-13 12:36:53,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-13 12:36:53,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-13 12:36:53,745 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-13 12:36:53,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-13 12:36:53,746 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-13 12:36:53,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 12:36:53,746 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-10-13 12:36:53,751 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 12:36:53,751 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 12:36:53,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:36:53 BasicIcfg [2024-10-13 12:36:53,756 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 12:36:53,757 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 12:36:53,757 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 12:36:53,757 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 12:36:53,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:36:37" (3/4) ... [2024-10-13 12:36:53,761 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 12:36:53,764 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 12:36:53,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 12:36:53,765 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-13 12:36:53,770 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 102 nodes and edges [2024-10-13 12:36:53,771 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-13 12:36:53,771 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 12:36:53,771 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 12:36:53,872 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 12:36:53,873 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 12:36:53,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 12:36:53,874 INFO L158 Benchmark]: Toolchain (without parser) took 17734.98ms. Allocated memory was 159.4MB in the beginning and 664.8MB in the end (delta: 505.4MB). Free memory was 105.5MB in the beginning and 497.8MB in the end (delta: -392.3MB). Peak memory consumption was 115.3MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,874 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:36:53,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.05ms. Allocated memory is still 159.4MB. Free memory was 105.0MB in the beginning and 92.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.70ms. Allocated memory is still 159.4MB. Free memory was 92.0MB in the beginning and 88.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,875 INFO L158 Benchmark]: Boogie Preprocessor took 51.12ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,876 INFO L158 Benchmark]: RCFGBuilder took 1278.10ms. Allocated memory was 159.4MB in the beginning and 241.2MB in the end (delta: 81.8MB). Free memory was 85.1MB in the beginning and 79.5MB in the end (delta: 5.6MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,876 INFO L158 Benchmark]: TraceAbstraction took 15942.85ms. Allocated memory was 241.2MB in the beginning and 664.8MB in the end (delta: 423.6MB). Free memory was 78.4MB in the beginning and 503.1MB in the end (delta: -424.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 12:36:53,876 INFO L158 Benchmark]: Witness Printer took 116.12ms. Allocated memory is still 664.8MB. Free memory was 503.1MB in the beginning and 497.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 12:36:53,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 159.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.05ms. Allocated memory is still 159.4MB. Free memory was 105.0MB in the beginning and 92.0MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.70ms. Allocated memory is still 159.4MB. Free memory was 92.0MB in the beginning and 88.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.12ms. Allocated memory is still 159.4MB. Free memory was 88.8MB in the beginning and 85.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1278.10ms. Allocated memory was 159.4MB in the beginning and 241.2MB in the end (delta: 81.8MB). Free memory was 85.1MB in the beginning and 79.5MB in the end (delta: 5.6MB). Peak memory consumption was 95.3MB. Max. memory is 16.1GB. * TraceAbstraction took 15942.85ms. Allocated memory was 241.2MB in the beginning and 664.8MB in the end (delta: 423.6MB). Free memory was 78.4MB in the beginning and 503.1MB in the end (delta: -424.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 116.12ms. Allocated memory is still 664.8MB. Free memory was 503.1MB in the beginning and 497.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 75]: 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, 43 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: 15.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 190 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 513 IncrementalHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 513 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred in iteration=4, InterpolantAutomatonStates: 36, 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, 0.7s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 3065 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 12:36:53,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE