./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-time-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 61a67961 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-time-subst.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 55dce27fdc9c44ff408174badf0a943270d2adadc96357bb37463f058a6a7cee --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 19:50:09,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 19:50:09,146 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-14 19:50:09,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 19:50:09,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 19:50:09,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 19:50:09,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 19:50:09,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 19:50:09,185 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 19:50:09,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 19:50:09,186 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 19:50:09,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 19:50:09,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 19:50:09,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 19:50:09,188 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 19:50:09,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 19:50:09,188 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 19:50:09,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 19:50:09,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 19:50:09,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 19:50:09,189 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-14 19:50:09,193 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-14 19:50:09,193 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-14 19:50:09,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 19:50:09,194 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-14 19:50:09,194 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 19:50:09,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 19:50:09,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 19:50:09,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 19:50:09,195 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 19:50:09,195 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 19:50:09,195 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 19:50:09,195 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 19:50:09,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:50:09,196 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 19:50:09,198 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 19:50:09,199 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 19:50:09,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 19:50:09,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 19:50:09,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 19:50:09,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 19:50:09,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 19:50:09,201 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55dce27fdc9c44ff408174badf0a943270d2adadc96357bb37463f058a6a7cee [2024-10-14 19:50:09,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 19:50:09,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 19:50:09,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 19:50:09,462 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 19:50:09,462 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 19:50:09,463 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2024-10-14 19:50:10,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 19:50:11,065 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 19:50:11,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-time-subst.wvr.c [2024-10-14 19:50:11,074 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c1637feb/c52e7037f56d42e7bdeadea36ba8dde7/FLAG36f46b42a [2024-10-14 19:50:11,464 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c1637feb/c52e7037f56d42e7bdeadea36ba8dde7 [2024-10-14 19:50:11,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 19:50:11,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 19:50:11,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 19:50:11,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 19:50:11,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 19:50:11,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70cf4ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11, skipping insertion in model container [2024-10-14 19:50:11,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,506 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 19:50:11,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:50:11,769 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 19:50:11,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 19:50:11,807 INFO L204 MainTranslator]: Completed translation [2024-10-14 19:50:11,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11 WrapperNode [2024-10-14 19:50:11,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 19:50:11,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 19:50:11,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 19:50:11,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 19:50:11,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,827 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,855 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 12, calls inlined = 22, statements flattened = 209 [2024-10-14 19:50:11,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 19:50:11,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 19:50:11,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 19:50:11,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 19:50:11,865 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,865 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,868 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,889 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]. [2024-10-14 19:50:11,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,899 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,900 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,903 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 19:50:11,904 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 19:50:11,904 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 19:50:11,904 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 19:50:11,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (1/1) ... [2024-10-14 19:50:11,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 19:50:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 19:50:11,938 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) [2024-10-14 19:50:11,941 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 [2024-10-14 19:50:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 19:50:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-14 19:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-14 19:50:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-14 19:50:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-14 19:50:11,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-10-14 19:50:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-10-14 19:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 19:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-14 19:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-14 19:50:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 19:50:11,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 19:50:11,994 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-14 19:50:12,118 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 19:50:12,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 19:50:12,550 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-14 19:50:12,552 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 19:50:12,876 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 19:50:12,877 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-14 19:50:12,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:50:12 BoogieIcfgContainer [2024-10-14 19:50:12,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 19:50:12,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 19:50:12,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 19:50:12,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 19:50:12,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:50:11" (1/3) ... [2024-10-14 19:50:12,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1324153e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:50:12, skipping insertion in model container [2024-10-14 19:50:12,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:50:11" (2/3) ... [2024-10-14 19:50:12,887 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1324153e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:50:12, skipping insertion in model container [2024-10-14 19:50:12,888 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:50:12" (3/3) ... [2024-10-14 19:50:12,889 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-time-subst.wvr.c [2024-10-14 19:50:12,926 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 19:50:12,927 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-14 19:50:12,927 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-14 19:50:12,988 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-10-14 19:50:13,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 27 transitions, 75 flow [2024-10-14 19:50:13,058 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-10-14 19:50:13,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 19:50:13,064 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 21 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. [2024-10-14 19:50:13,064 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 27 transitions, 75 flow [2024-10-14 19:50:13,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 23 transitions, 64 flow [2024-10-14 19:50:13,079 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 19:50:13,086 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;@1f49f84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 19:50:13,086 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-10-14 19:50:13,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-14 19:50:13,102 INFO L124 PetriNetUnfolderBase]: 0/20 cut-off events. [2024-10-14 19:50:13,103 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-14 19:50:13,103 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:13,103 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] [2024-10-14 19:50:13,104 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)] === [2024-10-14 19:50:13,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:13,111 INFO L85 PathProgramCache]: Analyzing trace with hash 701682241, now seen corresponding path program 1 times [2024-10-14 19:50:13,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:13,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991220640] [2024-10-14 19:50:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:13,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:15,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:15,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:15,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991220640] [2024-10-14 19:50:15,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991220640] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:15,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:15,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:15,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610725886] [2024-10-14 19:50:15,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:15,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:15,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:15,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:15,278 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:15,280 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) [2024-10-14 19:50:15,280 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:15,280 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:15,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:15,728 INFO L124 PetriNetUnfolderBase]: 178/337 cut-off events. [2024-10-14 19:50:15,728 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2024-10-14 19:50:15,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 337 events. 178/337 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1327 event pairs, 46 based on Foata normal form. 3/331 useless extension candidates. Maximal degree in co-relation 575. Up to 110 conditions per place. [2024-10-14 19:50:15,735 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 30 selfloop transitions, 2 changer transitions 8/44 dead transitions. [2024-10-14 19:50:15,735 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 44 transitions, 210 flow [2024-10-14 19:50:15,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:15,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-10-14 19:50:15,746 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-10-14 19:50:15,747 INFO L175 Difference]: Start difference. First operand has 33 places, 23 transitions, 64 flow. Second operand 5 states and 83 transitions. [2024-10-14 19:50:15,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 44 transitions, 210 flow [2024-10-14 19:50:15,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 44 transitions, 182 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-14 19:50:15,754 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 63 flow [2024-10-14 19:50:15,755 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=63, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2024-10-14 19:50:15,760 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-10-14 19:50:15,760 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 63 flow [2024-10-14 19:50:15,760 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) [2024-10-14 19:50:15,760 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:15,761 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] [2024-10-14 19:50:15,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 19:50:15,761 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)] === [2024-10-14 19:50:15,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:15,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2078110877, now seen corresponding path program 2 times [2024-10-14 19:50:15,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:15,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491300888] [2024-10-14 19:50:15,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:15,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:16,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491300888] [2024-10-14 19:50:16,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491300888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:16,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:16,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:16,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940326828] [2024-10-14 19:50:16,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:16,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:16,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:16,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:16,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 63 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) [2024-10-14 19:50:16,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:16,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:16,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:17,314 INFO L124 PetriNetUnfolderBase]: 194/367 cut-off events. [2024-10-14 19:50:17,314 INFO L125 PetriNetUnfolderBase]: For 172/172 co-relation queries the response was YES. [2024-10-14 19:50:17,316 INFO L83 FinitePrefix]: Finished finitePrefix Result has 853 conditions, 367 events. 194/367 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1583 event pairs, 24 based on Foata normal form. 1/365 useless extension candidates. Maximal degree in co-relation 839. Up to 151 conditions per place. [2024-10-14 19:50:17,318 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 32 selfloop transitions, 2 changer transitions 12/50 dead transitions. [2024-10-14 19:50:17,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 50 transitions, 234 flow [2024-10-14 19:50:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:17,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:17,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 85 transitions. [2024-10-14 19:50:17,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6296296296296297 [2024-10-14 19:50:17,320 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 63 flow. Second operand 5 states and 85 transitions. [2024-10-14 19:50:17,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 50 transitions, 234 flow [2024-10-14 19:50:17,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 50 transitions, 227 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-14 19:50:17,323 INFO L231 Difference]: Finished difference. Result has 36 places, 22 transitions, 73 flow [2024-10-14 19:50:17,323 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=36, PETRI_TRANSITIONS=22} [2024-10-14 19:50:17,324 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-10-14 19:50:17,324 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 22 transitions, 73 flow [2024-10-14 19:50:17,325 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) [2024-10-14 19:50:17,325 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:17,325 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] [2024-10-14 19:50:17,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 19:50:17,326 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)] === [2024-10-14 19:50:17,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:17,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1544850843, now seen corresponding path program 3 times [2024-10-14 19:50:17,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:17,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122215211] [2024-10-14 19:50:17,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:17,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:18,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:18,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:18,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122215211] [2024-10-14 19:50:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122215211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:18,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:18,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:18,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198787745] [2024-10-14 19:50:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:18,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:18,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:18,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:18,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:18,157 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:18,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 22 transitions, 73 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) [2024-10-14 19:50:18,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:18,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:18,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:18,375 INFO L124 PetriNetUnfolderBase]: 153/301 cut-off events. [2024-10-14 19:50:18,377 INFO L125 PetriNetUnfolderBase]: For 315/315 co-relation queries the response was YES. [2024-10-14 19:50:18,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 761 conditions, 301 events. 153/301 cut-off events. For 315/315 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1156 event pairs, 35 based on Foata normal form. 1/298 useless extension candidates. Maximal degree in co-relation 745. Up to 109 conditions per place. [2024-10-14 19:50:18,380 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 31 selfloop transitions, 3 changer transitions 8/46 dead transitions. [2024-10-14 19:50:18,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 46 transitions, 229 flow [2024-10-14 19:50:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:18,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:18,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 82 transitions. [2024-10-14 19:50:18,382 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6074074074074074 [2024-10-14 19:50:18,382 INFO L175 Difference]: Start difference. First operand has 36 places, 22 transitions, 73 flow. Second operand 5 states and 82 transitions. [2024-10-14 19:50:18,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 46 transitions, 229 flow [2024-10-14 19:50:18,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 210 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-10-14 19:50:18,387 INFO L231 Difference]: Finished difference. Result has 38 places, 23 transitions, 84 flow [2024-10-14 19:50:18,387 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=38, PETRI_TRANSITIONS=23} [2024-10-14 19:50:18,388 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-10-14 19:50:18,388 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 23 transitions, 84 flow [2024-10-14 19:50:18,388 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) [2024-10-14 19:50:18,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:18,389 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] [2024-10-14 19:50:18,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 19:50:18,389 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)] === [2024-10-14 19:50:18,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -649458181, now seen corresponding path program 4 times [2024-10-14 19:50:18,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:18,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963983856] [2024-10-14 19:50:18,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:18,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:19,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:19,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963983856] [2024-10-14 19:50:19,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963983856] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:19,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:19,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:19,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609233088] [2024-10-14 19:50:19,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:19,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:19,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:19,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:19,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:19,229 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:19,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 23 transitions, 84 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) [2024-10-14 19:50:19,230 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:19,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:19,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:19,504 INFO L124 PetriNetUnfolderBase]: 160/316 cut-off events. [2024-10-14 19:50:19,505 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2024-10-14 19:50:19,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 856 conditions, 316 events. 160/316 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1285 event pairs, 28 based on Foata normal form. 1/314 useless extension candidates. Maximal degree in co-relation 840. Up to 137 conditions per place. [2024-10-14 19:50:19,508 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 30 selfloop transitions, 2 changer transitions 12/48 dead transitions. [2024-10-14 19:50:19,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 251 flow [2024-10-14 19:50:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:19,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 83 transitions. [2024-10-14 19:50:19,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6148148148148148 [2024-10-14 19:50:19,510 INFO L175 Difference]: Start difference. First operand has 38 places, 23 transitions, 84 flow. Second operand 5 states and 83 transitions. [2024-10-14 19:50:19,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 251 flow [2024-10-14 19:50:19,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 48 transitions, 244 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-14 19:50:19,512 INFO L231 Difference]: Finished difference. Result has 42 places, 23 transitions, 93 flow [2024-10-14 19:50:19,513 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=93, PETRI_PLACES=42, PETRI_TRANSITIONS=23} [2024-10-14 19:50:19,515 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2024-10-14 19:50:19,515 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 23 transitions, 93 flow [2024-10-14 19:50:19,516 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) [2024-10-14 19:50:19,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:19,516 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] [2024-10-14 19:50:19,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 19:50:19,518 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)] === [2024-10-14 19:50:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1805752955, now seen corresponding path program 5 times [2024-10-14 19:50:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:19,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7175699] [2024-10-14 19:50:19,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:19,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:20,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:20,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:20,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7175699] [2024-10-14 19:50:20,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7175699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:20,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:20,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:20,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024583147] [2024-10-14 19:50:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:20,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:20,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:20,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:20,774 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:20,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 23 transitions, 93 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) [2024-10-14 19:50:20,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:20,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:20,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:21,071 INFO L124 PetriNetUnfolderBase]: 111/226 cut-off events. [2024-10-14 19:50:21,074 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2024-10-14 19:50:21,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 226 events. 111/226 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 783 event pairs, 21 based on Foata normal form. 1/225 useless extension candidates. Maximal degree in co-relation 642. Up to 69 conditions per place. [2024-10-14 19:50:21,077 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 20 selfloop transitions, 1 changer transitions 19/44 dead transitions. [2024-10-14 19:50:21,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 44 transitions, 230 flow [2024-10-14 19:50:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 80 transitions. [2024-10-14 19:50:21,080 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925925925925926 [2024-10-14 19:50:21,080 INFO L175 Difference]: Start difference. First operand has 42 places, 23 transitions, 93 flow. Second operand 5 states and 80 transitions. [2024-10-14 19:50:21,080 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 44 transitions, 230 flow [2024-10-14 19:50:21,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 44 transitions, 218 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-14 19:50:21,085 INFO L231 Difference]: Finished difference. Result has 43 places, 21 transitions, 73 flow [2024-10-14 19:50:21,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=73, PETRI_PLACES=43, PETRI_TRANSITIONS=21} [2024-10-14 19:50:21,086 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 10 predicate places. [2024-10-14 19:50:21,086 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 21 transitions, 73 flow [2024-10-14 19:50:21,088 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) [2024-10-14 19:50:21,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-14 19:50:21,088 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] [2024-10-14 19:50:21,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 19:50:21,089 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)] === [2024-10-14 19:50:21,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 19:50:21,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1344978635, now seen corresponding path program 6 times [2024-10-14 19:50:21,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 19:50:21,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807705042] [2024-10-14 19:50:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 19:50:21,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 19:50:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 19:50:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 19:50:21,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 19:50:21,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807705042] [2024-10-14 19:50:21,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807705042] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 19:50:21,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 19:50:21,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 19:50:21,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40715367] [2024-10-14 19:50:21,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 19:50:21,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 19:50:21,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 19:50:21,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 19:50:21,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 19:50:21,776 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 27 [2024-10-14 19:50:21,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 21 transitions, 73 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) [2024-10-14 19:50:21,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-14 19:50:21,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 27 [2024-10-14 19:50:21,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-14 19:50:21,937 INFO L124 PetriNetUnfolderBase]: 52/115 cut-off events. [2024-10-14 19:50:21,937 INFO L125 PetriNetUnfolderBase]: For 184/184 co-relation queries the response was YES. [2024-10-14 19:50:21,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 115 events. 52/115 cut-off events. For 184/184 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 291 event pairs, 10 based on Foata normal form. 1/115 useless extension candidates. Maximal degree in co-relation 327. Up to 54 conditions per place. [2024-10-14 19:50:21,938 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 0 selfloop transitions, 0 changer transitions 29/29 dead transitions. [2024-10-14 19:50:21,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 29 transitions, 147 flow [2024-10-14 19:50:21,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 19:50:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-14 19:50:21,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 67 transitions. [2024-10-14 19:50:21,939 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4962962962962963 [2024-10-14 19:50:21,940 INFO L175 Difference]: Start difference. First operand has 43 places, 21 transitions, 73 flow. Second operand 5 states and 67 transitions. [2024-10-14 19:50:21,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 29 transitions, 147 flow [2024-10-14 19:50:21,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 29 transitions, 133 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-10-14 19:50:21,941 INFO L231 Difference]: Finished difference. Result has 36 places, 0 transitions, 0 flow [2024-10-14 19:50:21,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=32, 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=5, PETRI_FLOW=0, PETRI_PLACES=36, PETRI_TRANSITIONS=0} [2024-10-14 19:50:21,941 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2024-10-14 19:50:21,942 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 0 transitions, 0 flow [2024-10-14 19:50:21,942 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) [2024-10-14 19:50:21,944 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2024-10-14 19:50:21,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 5 remaining) [2024-10-14 19:50:21,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-10-14 19:50:21,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-10-14 19:50:21,945 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2024-10-14 19:50:21,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 19:50:21,946 INFO L407 BasicCegarLoop]: Path program histogram: [6] [2024-10-14 19:50:21,949 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-14 19:50:21,949 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 19:50:21,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:50:21 BasicIcfg [2024-10-14 19:50:21,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 19:50:21,956 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 19:50:21,956 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 19:50:21,956 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 19:50:21,956 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:50:12" (3/4) ... [2024-10-14 19:50:21,958 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 19:50:21,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-14 19:50:21,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-14 19:50:21,961 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-10-14 19:50:21,966 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 84 nodes and edges [2024-10-14 19:50:21,968 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-14 19:50:21,968 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-14 19:50:21,968 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-14 19:50:22,092 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 19:50:22,093 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 19:50:22,093 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 19:50:22,093 INFO L158 Benchmark]: Toolchain (without parser) took 10625.26ms. Allocated memory was 172.0MB in the beginning and 375.4MB in the end (delta: 203.4MB). Free memory was 104.0MB in the beginning and 341.7MB in the end (delta: -237.7MB). Peak memory consumption was 190.6MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,093 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 19:50:22,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.92ms. Allocated memory is still 172.0MB. Free memory was 103.9MB in the beginning and 138.8MB in the end (delta: -35.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.49ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 136.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,094 INFO L158 Benchmark]: Boogie Preprocessor took 47.09ms. Allocated memory is still 172.0MB. Free memory was 136.7MB in the beginning and 134.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,094 INFO L158 Benchmark]: RCFGBuilder took 974.24ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 50.8MB in the end (delta: 83.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,095 INFO L158 Benchmark]: TraceAbstraction took 9074.18ms. Allocated memory was 172.0MB in the beginning and 375.4MB in the end (delta: 203.4MB). Free memory was 50.1MB in the beginning and 122.7MB in the end (delta: -72.6MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,095 INFO L158 Benchmark]: Witness Printer took 137.34ms. Allocated memory is still 375.4MB. Free memory was 122.7MB in the beginning and 341.7MB in the end (delta: -219.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 19:50:22,098 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.92ms. Allocated memory is still 172.0MB. Free memory was 103.9MB in the beginning and 138.8MB in the end (delta: -35.0MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.49ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 136.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.09ms. Allocated memory is still 172.0MB. Free memory was 136.7MB in the beginning and 134.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 974.24ms. Allocated memory is still 172.0MB. Free memory was 134.0MB in the beginning and 50.8MB in the end (delta: 83.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9074.18ms. Allocated memory was 172.0MB in the beginning and 375.4MB in the end (delta: 203.4MB). Free memory was 50.1MB in the beginning and 122.7MB in the end (delta: -72.6MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. * Witness Printer took 137.34ms. Allocated memory is still 375.4MB. Free memory was 122.7MB in the beginning and 341.7MB in the end (delta: -219.0MB). Peak memory consumption was 4.2MB. 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: 70]: 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: 8.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 123 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 123 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 604 IncrementalHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 604 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=4, InterpolantAutomatonStates: 30, 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, 0.3s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 4049 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! [2024-10-14 19:50:22,127 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