./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:34:03,388 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:34:03,450 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:34:03,456 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:34:03,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:34:03,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:34:03,486 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:34:03,486 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:34:03,487 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:34:03,488 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:34:03,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:34:03,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:34:03,490 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:34:03,490 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:34:03,490 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:34:03,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:34:03,491 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:34:03,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:34:03,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:34:03,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:34:03,492 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:34:03,493 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:34:03,493 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:34:03,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:34:03,494 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:34:03,494 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:34:03,494 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:34:03,495 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:34:03,495 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:34:03,495 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:34:03,495 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:34:03,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:34:03,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:34:03,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:34:03,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:34:03,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:34:03,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:34:03,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:34:03,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:34:03,501 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:34:03,501 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:34:03,501 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:34:03,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29016034e4102bf62d4fcba069301a54da1d77dfd5739e4cf52e395ddaa22e38 [2024-11-12 16:34:03,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:34:03,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:34:03,809 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:34:03,810 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:34:03,810 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:34:03,811 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-12 16:34:05,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:34:05,490 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:34:05,492 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_ok.i [2024-11-12 16:34:05,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a61c89f/4b2f27e5f2724202ad6362131ac96174/FLAG1cba5a2b6 [2024-11-12 16:34:05,529 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a61c89f/4b2f27e5f2724202ad6362131ac96174 [2024-11-12 16:34:05,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:34:05,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:34:05,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:34:05,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:34:05,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:34:05,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:34:05" (1/1) ... [2024-11-12 16:34:05,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef1ae20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:05, skipping insertion in model container [2024-11-12 16:34:05,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:34:05" (1/1) ... [2024-11-12 16:34:05,595 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:34:06,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:34:06,056 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:34:06,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:34:06,211 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:34:06,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06 WrapperNode [2024-11-12 16:34:06,218 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:34:06,220 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:34:06,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:34:06,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:34:06,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,268 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,314 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2024-11-12 16:34:06,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:34:06,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:34:06,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:34:06,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:34:06,329 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,334 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,355 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2024-11-12 16:34:06,356 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,356 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,382 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:34:06,390 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:34:06,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:34:06,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:34:06,395 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (1/1) ... [2024-11-12 16:34:06,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:34:06,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:06,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 16:34:06,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 16:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 16:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 16:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 16:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 16:34:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 16:34:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 16:34:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 16:34:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 16:34:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:34:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:34:06,475 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:34:06,623 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:34:06,625 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:34:07,008 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:34:07,008 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:34:08,028 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:34:08,028 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-12 16:34:08,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:08 BoogieIcfgContainer [2024-11-12 16:34:08,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:34:08,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:34:08,034 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:34:08,037 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:34:08,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:34:05" (1/3) ... [2024-11-12 16:34:08,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4fcfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:08, skipping insertion in model container [2024-11-12 16:34:08,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:06" (2/3) ... [2024-11-12 16:34:08,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f4fcfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:08, skipping insertion in model container [2024-11-12 16:34:08,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:08" (3/3) ... [2024-11-12 16:34:08,041 INFO L112 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_ok.i [2024-11-12 16:34:08,058 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:34:08,058 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-12 16:34:08,058 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:34:08,130 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 16:34:08,166 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 43 transitions, 100 flow [2024-11-12 16:34:08,220 INFO L124 PetriNetUnfolderBase]: 7/41 cut-off events. [2024-11-12 16:34:08,220 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 16:34:08,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 41 events. 7/41 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 73 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 27. Up to 3 conditions per place. [2024-11-12 16:34:08,225 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 43 transitions, 100 flow [2024-11-12 16:34:08,230 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 40 transitions, 92 flow [2024-11-12 16:34:08,241 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:34:08,247 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;@3f8b774f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:34:08,248 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-12 16:34:08,277 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:34:08,277 INFO L124 PetriNetUnfolderBase]: 7/38 cut-off events. [2024-11-12 16:34:08,277 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 16:34:08,277 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:08,278 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:08,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:08,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:08,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1079441311, now seen corresponding path program 1 times [2024-11-12 16:34:08,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:08,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817489429] [2024-11-12 16:34:08,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:08,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:09,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817489429] [2024-11-12 16:34:09,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817489429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:09,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:09,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:34:09,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635008612] [2024-11-12 16:34:09,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:09,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:09,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:09,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:34:09,273 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-12 16:34:09,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 40 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:09,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:09,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-12 16:34:09,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:09,528 INFO L124 PetriNetUnfolderBase]: 441/787 cut-off events. [2024-11-12 16:34:09,528 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-12 16:34:09,532 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1508 conditions, 787 events. 441/787 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3703 event pairs, 173 based on Foata normal form. 20/778 useless extension candidates. Maximal degree in co-relation 1442. Up to 419 conditions per place. [2024-11-12 16:34:09,538 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 39 selfloop transitions, 2 changer transitions 0/54 dead transitions. [2024-11-12 16:34:09,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 54 transitions, 205 flow [2024-11-12 16:34:09,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:09,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2024-11-12 16:34:09,550 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.689922480620155 [2024-11-12 16:34:09,552 INFO L175 Difference]: Start difference. First operand has 40 places, 40 transitions, 92 flow. Second operand 3 states and 89 transitions. [2024-11-12 16:34:09,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 54 transitions, 205 flow [2024-11-12 16:34:09,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 195 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:34:09,560 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 90 flow [2024-11-12 16:34:09,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2024-11-12 16:34:09,568 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -2 predicate places. [2024-11-12 16:34:09,568 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 90 flow [2024-11-12 16:34:09,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:09,569 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:09,570 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:09,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:34:09,570 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:09,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:09,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1219930273, now seen corresponding path program 1 times [2024-11-12 16:34:09,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:09,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525552988] [2024-11-12 16:34:09,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:09,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:34:10,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:10,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525552988] [2024-11-12 16:34:10,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525552988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:10,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:10,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:34:10,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596649] [2024-11-12 16:34:10,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:10,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:10,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:10,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:10,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:34:10,079 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-12 16:34:10,079 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 90 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:10,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:10,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-12 16:34:10,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:10,330 INFO L124 PetriNetUnfolderBase]: 742/1327 cut-off events. [2024-11-12 16:34:10,331 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-12 16:34:10,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2615 conditions, 1327 events. 742/1327 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6781 event pairs, 300 based on Foata normal form. 29/1324 useless extension candidates. Maximal degree in co-relation 964. Up to 697 conditions per place. [2024-11-12 16:34:10,342 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 40 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2024-11-12 16:34:10,342 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 55 transitions, 219 flow [2024-11-12 16:34:10,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:10,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:10,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 86 transitions. [2024-11-12 16:34:10,344 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-12 16:34:10,344 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 90 flow. Second operand 3 states and 86 transitions. [2024-11-12 16:34:10,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 55 transitions, 219 flow [2024-11-12 16:34:10,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 55 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:34:10,347 INFO L231 Difference]: Finished difference. Result has 40 places, 39 transitions, 100 flow [2024-11-12 16:34:10,347 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=40, PETRI_TRANSITIONS=39} [2024-11-12 16:34:10,348 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 0 predicate places. [2024-11-12 16:34:10,348 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 39 transitions, 100 flow [2024-11-12 16:34:10,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:10,349 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:10,349 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:10,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:34:10,349 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:10,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:10,350 INFO L85 PathProgramCache]: Analyzing trace with hash 737018549, now seen corresponding path program 1 times [2024-11-12 16:34:10,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:10,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694473930] [2024-11-12 16:34:10,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:10,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:10,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:10,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694473930] [2024-11-12 16:34:10,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694473930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:10,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:10,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:34:10,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3686882] [2024-11-12 16:34:10,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:10,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:10,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:10,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:10,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:34:10,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-12 16:34:10,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 39 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:10,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:10,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-12 16:34:10,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:10,931 INFO L124 PetriNetUnfolderBase]: 428/900 cut-off events. [2024-11-12 16:34:10,931 INFO L125 PetriNetUnfolderBase]: For 196/196 co-relation queries the response was YES. [2024-11-12 16:34:10,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1869 conditions, 900 events. 428/900 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 4334 event pairs, 182 based on Foata normal form. 64/958 useless extension candidates. Maximal degree in co-relation 629. Up to 373 conditions per place. [2024-11-12 16:34:10,936 INFO L140 encePairwiseOnDemand]: 35/43 looper letters, 30 selfloop transitions, 8 changer transitions 0/51 dead transitions. [2024-11-12 16:34:10,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 220 flow [2024-11-12 16:34:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:10,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 83 transitions. [2024-11-12 16:34:10,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6434108527131783 [2024-11-12 16:34:10,938 INFO L175 Difference]: Start difference. First operand has 40 places, 39 transitions, 100 flow. Second operand 3 states and 83 transitions. [2024-11-12 16:34:10,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 220 flow [2024-11-12 16:34:10,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 51 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:34:10,941 INFO L231 Difference]: Finished difference. Result has 41 places, 39 transitions, 114 flow [2024-11-12 16:34:10,941 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=41, PETRI_TRANSITIONS=39} [2024-11-12 16:34:10,942 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 1 predicate places. [2024-11-12 16:34:10,943 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 39 transitions, 114 flow [2024-11-12 16:34:10,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:10,943 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:10,943 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:10,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:34:10,944 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:10,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:10,944 INFO L85 PathProgramCache]: Analyzing trace with hash 419044627, now seen corresponding path program 2 times [2024-11-12 16:34:10,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:10,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315492024] [2024-11-12 16:34:10,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:10,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:11,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:11,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315492024] [2024-11-12 16:34:11,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315492024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:11,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:11,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:34:11,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437610061] [2024-11-12 16:34:11,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:11,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:34:11,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:11,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:34:11,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:34:11,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 43 [2024-11-12 16:34:11,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 39 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:11,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:11,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 43 [2024-11-12 16:34:11,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:11,456 INFO L124 PetriNetUnfolderBase]: 624/1308 cut-off events. [2024-11-12 16:34:11,456 INFO L125 PetriNetUnfolderBase]: For 440/440 co-relation queries the response was YES. [2024-11-12 16:34:11,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3074 conditions, 1308 events. 624/1308 cut-off events. For 440/440 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6865 event pairs, 183 based on Foata normal form. 30/1329 useless extension candidates. Maximal degree in co-relation 777. Up to 476 conditions per place. [2024-11-12 16:34:11,463 INFO L140 encePairwiseOnDemand]: 40/43 looper letters, 58 selfloop transitions, 3 changer transitions 0/74 dead transitions. [2024-11-12 16:34:11,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 74 transitions, 358 flow [2024-11-12 16:34:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:34:11,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:34:11,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-12 16:34:11,465 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6918604651162791 [2024-11-12 16:34:11,465 INFO L175 Difference]: Start difference. First operand has 41 places, 39 transitions, 114 flow. Second operand 4 states and 119 transitions. [2024-11-12 16:34:11,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 74 transitions, 358 flow [2024-11-12 16:34:11,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 74 transitions, 334 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:34:11,468 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 122 flow [2024-11-12 16:34:11,469 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=122, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2024-11-12 16:34:11,469 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 4 predicate places. [2024-11-12 16:34:11,470 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 122 flow [2024-11-12 16:34:11,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:11,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:11,470 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:11,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:34:11,471 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:11,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:11,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1525257781, now seen corresponding path program 3 times [2024-11-12 16:34:11,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:11,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379678620] [2024-11-12 16:34:11,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:11,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:34:11,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:11,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379678620] [2024-11-12 16:34:11,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379678620] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:34:11,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336540919] [2024-11-12 16:34:11,806 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 16:34:11,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:11,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:11,808 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:34:11,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 16:34:12,350 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-12 16:34:12,351 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:34:12,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-12 16:34:12,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:34:12,421 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-12 16:34:12,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 16:34:12,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336540919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:12,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 16:34:12,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [3] total 4 [2024-11-12 16:34:12,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653244380] [2024-11-12 16:34:12,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:12,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:12,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:12,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:12,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:34:12,424 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-12 16:34:12,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:12,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:12,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-12 16:34:12,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:12,587 INFO L124 PetriNetUnfolderBase]: 641/1316 cut-off events. [2024-11-12 16:34:12,587 INFO L125 PetriNetUnfolderBase]: For 518/518 co-relation queries the response was YES. [2024-11-12 16:34:12,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3081 conditions, 1316 events. 641/1316 cut-off events. For 518/518 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6804 event pairs, 454 based on Foata normal form. 1/1302 useless extension candidates. Maximal degree in co-relation 967. Up to 1074 conditions per place. [2024-11-12 16:34:12,595 INFO L140 encePairwiseOnDemand]: 41/43 looper letters, 26 selfloop transitions, 1 changer transitions 3/39 dead transitions. [2024-11-12 16:34:12,596 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 39 transitions, 174 flow [2024-11-12 16:34:12,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:12,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:12,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-12 16:34:12,602 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5193798449612403 [2024-11-12 16:34:12,602 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 122 flow. Second operand 3 states and 67 transitions. [2024-11-12 16:34:12,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 39 transitions, 174 flow [2024-11-12 16:34:12,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 39 transitions, 168 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-12 16:34:12,605 INFO L231 Difference]: Finished difference. Result has 43 places, 36 transitions, 110 flow [2024-11-12 16:34:12,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=43, PETRI_TRANSITIONS=36} [2024-11-12 16:34:12,606 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 3 predicate places. [2024-11-12 16:34:12,606 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 36 transitions, 110 flow [2024-11-12 16:34:12,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:12,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:12,607 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:12,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 16:34:12,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:12,808 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:12,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 802614073, now seen corresponding path program 1 times [2024-11-12 16:34:12,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:12,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089672421] [2024-11-12 16:34:12,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:12,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:13,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:13,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089672421] [2024-11-12 16:34:13,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089672421] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:34:13,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082301927] [2024-11-12 16:34:13,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:13,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:13,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:34:13,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 16:34:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:13,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 16:34:13,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:34:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:13,660 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:34:13,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:13,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082301927] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:34:13,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:34:13,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-12 16:34:13,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199841198] [2024-11-12 16:34:13,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:34:13,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:34:13,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:13,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:34:13,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:34:13,702 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-12 16:34:13,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 36 transitions, 110 flow. Second operand has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:13,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:13,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-12 16:34:13,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:14,068 INFO L124 PetriNetUnfolderBase]: 1427/2749 cut-off events. [2024-11-12 16:34:14,069 INFO L125 PetriNetUnfolderBase]: For 852/852 co-relation queries the response was YES. [2024-11-12 16:34:14,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6287 conditions, 2749 events. 1427/2749 cut-off events. For 852/852 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 14845 event pairs, 163 based on Foata normal form. 123/2858 useless extension candidates. Maximal degree in co-relation 6277. Up to 532 conditions per place. [2024-11-12 16:34:14,084 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 91 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-11-12 16:34:14,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 105 transitions, 542 flow [2024-11-12 16:34:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:34:14,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:34:14,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 174 transitions. [2024-11-12 16:34:14,086 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6744186046511628 [2024-11-12 16:34:14,086 INFO L175 Difference]: Start difference. First operand has 43 places, 36 transitions, 110 flow. Second operand 6 states and 174 transitions. [2024-11-12 16:34:14,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 105 transitions, 542 flow [2024-11-12 16:34:14,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 105 transitions, 541 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:34:14,089 INFO L231 Difference]: Finished difference. Result has 49 places, 39 transitions, 149 flow [2024-11-12 16:34:14,089 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=149, PETRI_PLACES=49, PETRI_TRANSITIONS=39} [2024-11-12 16:34:14,090 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2024-11-12 16:34:14,090 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 39 transitions, 149 flow [2024-11-12 16:34:14,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:14,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:14,091 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:14,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 16:34:14,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-12 16:34:14,296 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:14,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:14,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2063064297, now seen corresponding path program 2 times [2024-11-12 16:34:14,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:14,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503390309] [2024-11-12 16:34:14,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:14,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:14,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503390309] [2024-11-12 16:34:14,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503390309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:34:14,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678401700] [2024-11-12 16:34:14,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 16:34:14,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:14,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:14,619 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:34:14,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 16:34:15,175 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 16:34:15,175 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:34:15,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 16:34:15,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:34:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:15,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:34:15,327 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:15,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678401700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:34:15,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:34:15,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-12 16:34:15,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024691941] [2024-11-12 16:34:15,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:34:15,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:34:15,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:15,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:34:15,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:34:15,341 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 43 [2024-11-12 16:34:15,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 39 transitions, 149 flow. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:15,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:15,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 43 [2024-11-12 16:34:15,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:15,735 INFO L124 PetriNetUnfolderBase]: 1874/3687 cut-off events. [2024-11-12 16:34:15,735 INFO L125 PetriNetUnfolderBase]: For 2466/2466 co-relation queries the response was YES. [2024-11-12 16:34:15,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9052 conditions, 3687 events. 1874/3687 cut-off events. For 2466/2466 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 20972 event pairs, 264 based on Foata normal form. 112/3783 useless extension candidates. Maximal degree in co-relation 9039. Up to 718 conditions per place. [2024-11-12 16:34:15,814 INFO L140 encePairwiseOnDemand]: 39/43 looper letters, 100 selfloop transitions, 6 changer transitions 0/115 dead transitions. [2024-11-12 16:34:15,814 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 115 transitions, 693 flow [2024-11-12 16:34:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:34:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:34:15,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 177 transitions. [2024-11-12 16:34:15,816 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.686046511627907 [2024-11-12 16:34:15,816 INFO L175 Difference]: Start difference. First operand has 49 places, 39 transitions, 149 flow. Second operand 6 states and 177 transitions. [2024-11-12 16:34:15,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 115 transitions, 693 flow [2024-11-12 16:34:15,820 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 115 transitions, 653 flow, removed 15 selfloop flow, removed 1 redundant places. [2024-11-12 16:34:15,822 INFO L231 Difference]: Finished difference. Result has 56 places, 41 transitions, 175 flow [2024-11-12 16:34:15,822 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=175, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2024-11-12 16:34:15,823 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 16 predicate places. [2024-11-12 16:34:15,824 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 175 flow [2024-11-12 16:34:15,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 7 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:15,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:15,825 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:15,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 16:34:16,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:16,026 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:16,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:16,027 INFO L85 PathProgramCache]: Analyzing trace with hash -2011618485, now seen corresponding path program 3 times [2024-11-12 16:34:16,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003237567] [2024-11-12 16:34:16,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:16,541 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:16,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003237567] [2024-11-12 16:34:16,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003237567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:34:16,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522816187] [2024-11-12 16:34:16,542 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-12 16:34:16,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:16,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:16,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:34:16,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 16:34:17,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-12 16:34:17,125 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:34:17,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 16:34:17,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:34:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:17,163 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:34:17,207 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-12 16:34:17,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522816187] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:34:17,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:34:17,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-12 16:34:17,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416506014] [2024-11-12 16:34:17,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:34:17,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:34:17,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:17,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:34:17,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:34:17,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-12 16:34:17,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 175 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:17,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:17,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-12 16:34:17,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:17,419 INFO L124 PetriNetUnfolderBase]: 543/1205 cut-off events. [2024-11-12 16:34:17,419 INFO L125 PetriNetUnfolderBase]: For 1392/1394 co-relation queries the response was YES. [2024-11-12 16:34:17,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3256 conditions, 1205 events. 543/1205 cut-off events. For 1392/1394 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4924 event pairs, 148 based on Foata normal form. 0/1203 useless extension candidates. Maximal degree in co-relation 3240. Up to 528 conditions per place. [2024-11-12 16:34:17,427 INFO L140 encePairwiseOnDemand]: 38/43 looper letters, 50 selfloop transitions, 3 changer transitions 0/62 dead transitions. [2024-11-12 16:34:17,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 62 transitions, 393 flow [2024-11-12 16:34:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:34:17,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:34:17,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-12 16:34:17,429 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2024-11-12 16:34:17,429 INFO L175 Difference]: Start difference. First operand has 56 places, 41 transitions, 175 flow. Second operand 4 states and 97 transitions. [2024-11-12 16:34:17,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 62 transitions, 393 flow [2024-11-12 16:34:17,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 62 transitions, 370 flow, removed 8 selfloop flow, removed 2 redundant places. [2024-11-12 16:34:17,433 INFO L231 Difference]: Finished difference. Result has 59 places, 41 transitions, 178 flow [2024-11-12 16:34:17,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=59, PETRI_TRANSITIONS=41} [2024-11-12 16:34:17,434 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 19 predicate places. [2024-11-12 16:34:17,434 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 41 transitions, 178 flow [2024-11-12 16:34:17,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:17,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:17,435 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:17,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-12 16:34:17,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:17,635 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-12 16:34:17,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:17,636 INFO L85 PathProgramCache]: Analyzing trace with hash -952616999, now seen corresponding path program 4 times [2024-11-12 16:34:17,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:17,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731196896] [2024-11-12 16:34:17,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:17,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:18,441 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:18,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:18,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731196896] [2024-11-12 16:34:18,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731196896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:34:18,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959815601] [2024-11-12 16:34:18,442 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-12 16:34:18,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:18,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:18,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-12 16:34:18,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 16:34:19,008 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-12 16:34:19,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 16:34:19,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 16:34:19,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:34:19,318 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:19,318 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:34:19,709 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:19,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959815601] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:34:19,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:34:19,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 12] total 30 [2024-11-12 16:34:19,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956073882] [2024-11-12 16:34:19,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:34:19,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-12 16:34:19,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:19,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-12 16:34:19,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930 [2024-11-12 16:34:19,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 43 [2024-11-12 16:34:19,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 41 transitions, 178 flow. Second operand has 31 states, 31 states have (on average 17.129032258064516) internal successors, (531), 31 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:19,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:19,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 43 [2024-11-12 16:34:19,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:21,021 INFO L124 PetriNetUnfolderBase]: 589/1255 cut-off events. [2024-11-12 16:34:21,022 INFO L125 PetriNetUnfolderBase]: For 1176/1176 co-relation queries the response was YES. [2024-11-12 16:34:21,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3466 conditions, 1255 events. 589/1255 cut-off events. For 1176/1176 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 5118 event pairs, 37 based on Foata normal form. 30/1281 useless extension candidates. Maximal degree in co-relation 3446. Up to 232 conditions per place. [2024-11-12 16:34:21,028 INFO L140 encePairwiseOnDemand]: 36/43 looper letters, 0 selfloop transitions, 0 changer transitions 130/130 dead transitions. [2024-11-12 16:34:21,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 130 transitions, 788 flow [2024-11-12 16:34:21,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 16:34:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-12 16:34:21,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 275 transitions. [2024-11-12 16:34:21,029 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5329457364341085 [2024-11-12 16:34:21,029 INFO L175 Difference]: Start difference. First operand has 59 places, 41 transitions, 178 flow. Second operand 12 states and 275 transitions. [2024-11-12 16:34:21,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 130 transitions, 788 flow [2024-11-12 16:34:21,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 130 transitions, 785 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:34:21,034 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-11-12 16:34:21,035 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-11-12 16:34:21,036 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 25 predicate places. [2024-11-12 16:34:21,037 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-11-12 16:34:21,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 17.129032258064516) internal successors, (531), 31 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 16:34:21,042 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (3 of 4 remaining) [2024-11-12 16:34:21,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (2 of 4 remaining) [2024-11-12 16:34:21,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-12 16:34:21,043 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-12 16:34:21,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 16:34:21,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:34:21,244 INFO L421 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1] [2024-11-12 16:34:21,247 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 16:34:21,247 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 16:34:21,252 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 04:34:21 BasicIcfg [2024-11-12 16:34:21,252 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 16:34:21,252 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 16:34:21,252 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 16:34:21,252 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 16:34:21,253 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:08" (3/4) ... [2024-11-12 16:34:21,257 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 16:34:21,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 16:34:21,260 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 16:34:21,274 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 257 nodes and edges [2024-11-12 16:34:21,274 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-12 16:34:21,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-12 16:34:21,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 16:34:21,275 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-12 16:34:21,377 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 16:34:21,377 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 16:34:21,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 16:34:21,378 INFO L158 Benchmark]: Toolchain (without parser) took 15844.85ms. Allocated memory was 134.2MB in the beginning and 859.8MB in the end (delta: 725.6MB). Free memory was 78.3MB in the beginning and 477.9MB in the end (delta: -399.6MB). Peak memory consumption was 329.1MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,378 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 16:34:21,378 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.10ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 78.0MB in the beginning and 156.8MB in the end (delta: -78.7MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,379 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.37ms. Allocated memory is still 192.9MB. Free memory was 156.0MB in the beginning and 153.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,379 INFO L158 Benchmark]: Boogie Preprocessor took 71.65ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 149.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,379 INFO L158 Benchmark]: RCFGBuilder took 1638.38ms. Allocated memory was 192.9MB in the beginning and 281.0MB in the end (delta: 88.1MB). Free memory was 149.7MB in the beginning and 215.0MB in the end (delta: -65.3MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,380 INFO L158 Benchmark]: TraceAbstraction took 13217.82ms. Allocated memory was 281.0MB in the beginning and 859.8MB in the end (delta: 578.8MB). Free memory was 213.9MB in the beginning and 485.5MB in the end (delta: -271.6MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,380 INFO L158 Benchmark]: Witness Printer took 125.29ms. Allocated memory is still 859.8MB. Free memory was 485.5MB in the beginning and 477.9MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-12 16:34:21,381 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 134.2MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.10ms. Allocated memory was 134.2MB in the beginning and 192.9MB in the end (delta: 58.7MB). Free memory was 78.0MB in the beginning and 156.8MB in the end (delta: -78.7MB). Peak memory consumption was 34.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.37ms. Allocated memory is still 192.9MB. Free memory was 156.0MB in the beginning and 153.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.65ms. Allocated memory is still 192.9MB. Free memory was 153.1MB in the beginning and 149.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1638.38ms. Allocated memory was 192.9MB in the beginning and 281.0MB in the end (delta: 88.1MB). Free memory was 149.7MB in the beginning and 215.0MB in the end (delta: -65.3MB). Peak memory consumption was 102.2MB. Max. memory is 16.1GB. * TraceAbstraction took 13217.82ms. Allocated memory was 281.0MB in the beginning and 859.8MB in the end (delta: 578.8MB). Free memory was 213.9MB in the beginning and 485.5MB in the end (delta: -271.6MB). Peak memory consumption was 307.5MB. Max. memory is 16.1GB. * Witness Printer took 125.29ms. Allocated memory is still 859.8MB. Free memory was 485.5MB in the beginning and 477.9MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 906]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: 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 5 procedures, 59 locations, 4 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: 13.1s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 406 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2953 IncrementalHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 4 mSDtfsCounter, 2953 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 433 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=8, InterpolantAutomatonStates: 44, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 570 NumberOfCodeBlocks, 552 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 2780 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2347 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 18 InterpolantComputations, 5 PerfectInterpolantSequences, 325/461 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 16:34:21,409 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