./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/szymanski.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-atomic/szymanski.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:06:10,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:06:10,972 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:06:10,977 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:06:10,978 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:06:11,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:06:11,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:06:11,016 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:06:11,016 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:06:11,017 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:06:11,017 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:06:11,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:06:11,018 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:06:11,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:06:11,018 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:06:11,018 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:06:11,019 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:06:11,021 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:06:11,022 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:06:11,022 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:06:11,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:06:11,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:06:11,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:06:11,025 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:06:11,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:06:11,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:06:11,026 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:06:11,026 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:06:11,026 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:06:11,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:06:11,027 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:06:11,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:06:11,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:06:11,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:06:11,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:06:11,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:06:11,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:06:11,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:06:11,031 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:06:11,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:06:11,031 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:06:11,032 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:06:11,032 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3cd4be37ada319d324d40d8d6c18fff519996a186a93f33b3070275487295e3 [2024-11-16 19:06:11,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:06:11,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:06:11,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:06:11,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:06:11,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:06:11,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-16 19:06:12,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:06:13,046 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:06:13,046 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i [2024-11-16 19:06:13,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b15cdd7/c143ec0046d844cba738e47d5162441b/FLAGb685e88dd [2024-11-16 19:06:13,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b15cdd7/c143ec0046d844cba738e47d5162441b [2024-11-16 19:06:13,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:06:13,079 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:06:13,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:06:13,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:06:13,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:06:13,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f33ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13, skipping insertion in model container [2024-11-16 19:06:13,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:06:13,559 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-16 19:06:13,566 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-16 19:06:13,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:06:13,580 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:06:13,627 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32419,32432] [2024-11-16 19:06:13,634 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/szymanski.i[32696,32709] [2024-11-16 19:06:13,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:06:13,672 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:06:13,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13 WrapperNode [2024-11-16 19:06:13,672 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:06:13,674 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:06:13,674 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:06:13,674 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:06:13,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,713 INFO L138 Inliner]: procedures = 166, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2024-11-16 19:06:13,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:06:13,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:06:13,714 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:06:13,714 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:06:13,724 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,746 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:06:13,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,755 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,759 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,760 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:06:13,767 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:06:13,767 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:06:13,767 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:06:13,768 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (1/1) ... [2024-11-16 19:06:13,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:06:13,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:06:13,809 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) [2024-11-16 19:06:13,811 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 [2024-11-16 19:06:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2024-11-16 19:06:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2024-11-16 19:06:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-11-16 19:06:13,856 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-11-16 19:06:13,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:06:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:06:13,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:06:13,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:06:13,859 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:06:13,971 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:06:13,972 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:06:14,158 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:06:14,161 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:06:14,230 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:06:14,230 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:06:14,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:14 BoogieIcfgContainer [2024-11-16 19:06:14,231 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:06:14,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:06:14,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:06:14,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:06:14,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:06:13" (1/3) ... [2024-11-16 19:06:14,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a44d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:06:14, skipping insertion in model container [2024-11-16 19:06:14,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:06:13" (2/3) ... [2024-11-16 19:06:14,239 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41a44d58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:06:14, skipping insertion in model container [2024-11-16 19:06:14,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:14" (3/3) ... [2024-11-16 19:06:14,241 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski.i [2024-11-16 19:06:14,257 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:06:14,258 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:06:14,258 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:06:14,314 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-16 19:06:14,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 70 transitions, 154 flow [2024-11-16 19:06:14,387 INFO L124 PetriNetUnfolderBase]: 20/68 cut-off events. [2024-11-16 19:06:14,387 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-16 19:06:14,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 68 events. 20/68 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 0 based on Foata normal form. 0/46 useless extension candidates. Maximal degree in co-relation 65. Up to 3 conditions per place. [2024-11-16 19:06:14,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 70 transitions, 154 flow [2024-11-16 19:06:14,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 66 transitions, 141 flow [2024-11-16 19:06:14,411 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:06:14,417 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=LoopHeads, 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;@11fcfed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:06:14,418 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:06:14,430 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:06:14,430 INFO L124 PetriNetUnfolderBase]: 17/52 cut-off events. [2024-11-16 19:06:14,430 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:06:14,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:14,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:14,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:14,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 95396352, now seen corresponding path program 1 times [2024-11-16 19:06:14,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:14,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826136832] [2024-11-16 19:06:14,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:14,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:14,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:14,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826136832] [2024-11-16 19:06:14,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826136832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:14,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:14,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 19:06:14,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292280108] [2024-11-16 19:06:14,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:14,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 19:06:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:14,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 19:06:14,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 19:06:14,702 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2024-11-16 19:06:14,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 66 transitions, 141 flow. Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2024-11-16 19:06:14,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:14,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2024-11-16 19:06:14,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:14,857 INFO L124 PetriNetUnfolderBase]: 222/479 cut-off events. [2024-11-16 19:06:14,858 INFO L125 PetriNetUnfolderBase]: For 11/11 co-relation queries the response was YES. [2024-11-16 19:06:14,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 479 events. 222/479 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2578 event pairs, 182 based on Foata normal form. 161/544 useless extension candidates. Maximal degree in co-relation 796. Up to 336 conditions per place. [2024-11-16 19:06:14,870 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 20 selfloop transitions, 0 changer transitions 0/56 dead transitions. [2024-11-16 19:06:14,870 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 56 transitions, 161 flow [2024-11-16 19:06:14,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 19:06:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-16 19:06:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 106 transitions. [2024-11-16 19:06:14,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7571428571428571 [2024-11-16 19:06:14,886 INFO L175 Difference]: Start difference. First operand has 53 places, 66 transitions, 141 flow. Second operand 2 states and 106 transitions. [2024-11-16 19:06:14,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 56 transitions, 161 flow [2024-11-16 19:06:14,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 56 transitions, 156 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:06:14,895 INFO L231 Difference]: Finished difference. Result has 51 places, 56 transitions, 116 flow [2024-11-16 19:06:14,898 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=116, PETRI_PLACES=51, PETRI_TRANSITIONS=56} [2024-11-16 19:06:14,904 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, -2 predicate places. [2024-11-16 19:06:14,905 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 56 transitions, 116 flow [2024-11-16 19:06:14,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 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) [2024-11-16 19:06:14,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:14,906 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:14,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:06:14,907 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:14,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:14,908 INFO L85 PathProgramCache]: Analyzing trace with hash -87798817, now seen corresponding path program 1 times [2024-11-16 19:06:14,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:14,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569769359] [2024-11-16 19:06:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:15,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:15,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569769359] [2024-11-16 19:06:15,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569769359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:15,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646852614] [2024-11-16 19:06:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:15,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:15,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:15,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:15,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:15,060 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2024-11-16 19:06:15,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 56 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,061 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:15,061 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2024-11-16 19:06:15,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:15,191 INFO L124 PetriNetUnfolderBase]: 322/697 cut-off events. [2024-11-16 19:06:15,191 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 19:06:15,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 697 events. 322/697 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 3750 event pairs, 136 based on Foata normal form. 22/596 useless extension candidates. Maximal degree in co-relation 1213. Up to 286 conditions per place. [2024-11-16 19:06:15,202 INFO L140 encePairwiseOnDemand]: 65/70 looper letters, 31 selfloop transitions, 3 changer transitions 1/68 dead transitions. [2024-11-16 19:06:15,202 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 68 transitions, 211 flow [2024-11-16 19:06:15,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:15,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2024-11-16 19:06:15,204 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-16 19:06:15,204 INFO L175 Difference]: Start difference. First operand has 51 places, 56 transitions, 116 flow. Second operand 3 states and 142 transitions. [2024-11-16 19:06:15,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 68 transitions, 211 flow [2024-11-16 19:06:15,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 68 transitions, 211 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-16 19:06:15,210 INFO L231 Difference]: Finished difference. Result has 55 places, 57 transitions, 136 flow [2024-11-16 19:06:15,211 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=136, PETRI_PLACES=55, PETRI_TRANSITIONS=57} [2024-11-16 19:06:15,212 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2024-11-16 19:06:15,213 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 57 transitions, 136 flow [2024-11-16 19:06:15,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,213 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:15,213 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:15,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:06:15,214 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:15,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:15,214 INFO L85 PathProgramCache]: Analyzing trace with hash -385555062, now seen corresponding path program 1 times [2024-11-16 19:06:15,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:15,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204011870] [2024-11-16 19:06:15,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:15,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:15,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:15,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:15,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204011870] [2024-11-16 19:06:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204011870] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:15,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:15,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:15,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383252107] [2024-11-16 19:06:15,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:15,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:15,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:15,324 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2024-11-16 19:06:15,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 57 transitions, 136 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-16 19:06:15,326 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:15,326 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2024-11-16 19:06:15,326 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:15,455 INFO L124 PetriNetUnfolderBase]: 316/710 cut-off events. [2024-11-16 19:06:15,456 INFO L125 PetriNetUnfolderBase]: For 97/97 co-relation queries the response was YES. [2024-11-16 19:06:15,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1302 conditions, 710 events. 316/710 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3744 event pairs, 161 based on Foata normal form. 27/631 useless extension candidates. Maximal degree in co-relation 1297. Up to 333 conditions per place. [2024-11-16 19:06:15,462 INFO L140 encePairwiseOnDemand]: 66/70 looper letters, 29 selfloop transitions, 2 changer transitions 3/67 dead transitions. [2024-11-16 19:06:15,463 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 67 transitions, 225 flow [2024-11-16 19:06:15,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:15,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:15,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-16 19:06:15,466 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2024-11-16 19:06:15,466 INFO L175 Difference]: Start difference. First operand has 55 places, 57 transitions, 136 flow. Second operand 3 states and 141 transitions. [2024-11-16 19:06:15,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 67 transitions, 225 flow [2024-11-16 19:06:15,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 67 transitions, 219 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:06:15,471 INFO L231 Difference]: Finished difference. Result has 56 places, 57 transitions, 140 flow [2024-11-16 19:06:15,472 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=56, PETRI_TRANSITIONS=57} [2024-11-16 19:06:15,472 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-11-16 19:06:15,474 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 57 transitions, 140 flow [2024-11-16 19:06:15,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-16 19:06:15,474 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:15,474 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:15,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:06:15,475 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:15,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:15,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1717139116, now seen corresponding path program 1 times [2024-11-16 19:06:15,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:15,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656810756] [2024-11-16 19:06:15,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:15,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:15,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:15,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:15,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656810756] [2024-11-16 19:06:15,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656810756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:15,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:15,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:15,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97531810] [2024-11-16 19:06:15,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:15,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:15,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:15,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:15,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:15,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 70 [2024-11-16 19:06:15,592 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 57 transitions, 140 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:15,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 70 [2024-11-16 19:06:15,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:15,720 INFO L124 PetriNetUnfolderBase]: 386/904 cut-off events. [2024-11-16 19:06:15,721 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2024-11-16 19:06:15,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1591 conditions, 904 events. 386/904 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4927 event pairs, 194 based on Foata normal form. 32/860 useless extension candidates. Maximal degree in co-relation 1585. Up to 402 conditions per place. [2024-11-16 19:06:15,727 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 34 selfloop transitions, 6 changer transitions 2/74 dead transitions. [2024-11-16 19:06:15,727 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 74 transitions, 263 flow [2024-11-16 19:06:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:15,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2024-11-16 19:06:15,731 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2024-11-16 19:06:15,731 INFO L175 Difference]: Start difference. First operand has 56 places, 57 transitions, 140 flow. Second operand 3 states and 145 transitions. [2024-11-16 19:06:15,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 74 transitions, 263 flow [2024-11-16 19:06:15,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-16 19:06:15,734 INFO L231 Difference]: Finished difference. Result has 59 places, 62 transitions, 190 flow [2024-11-16 19:06:15,734 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=59, PETRI_TRANSITIONS=62} [2024-11-16 19:06:15,736 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 6 predicate places. [2024-11-16 19:06:15,736 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 62 transitions, 190 flow [2024-11-16 19:06:15,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:15,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:15,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:06:15,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:15,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:15,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1439753882, now seen corresponding path program 2 times [2024-11-16 19:06:15,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:15,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160306591] [2024-11-16 19:06:15,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:15,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:15,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:15,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160306591] [2024-11-16 19:06:15,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160306591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:15,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:15,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:15,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44789343] [2024-11-16 19:06:15,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:15,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:15,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:15,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:15,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:15,818 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 70 [2024-11-16 19:06:15,819 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 62 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,819 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:15,819 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 70 [2024-11-16 19:06:15,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:15,945 INFO L124 PetriNetUnfolderBase]: 430/1010 cut-off events. [2024-11-16 19:06:15,945 INFO L125 PetriNetUnfolderBase]: For 443/454 co-relation queries the response was YES. [2024-11-16 19:06:15,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2087 conditions, 1010 events. 430/1010 cut-off events. For 443/454 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 5567 event pairs, 162 based on Foata normal form. 24/930 useless extension candidates. Maximal degree in co-relation 2080. Up to 326 conditions per place. [2024-11-16 19:06:15,951 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 36 selfloop transitions, 9 changer transitions 2/79 dead transitions. [2024-11-16 19:06:15,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 79 transitions, 335 flow [2024-11-16 19:06:15,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2024-11-16 19:06:15,953 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6857142857142857 [2024-11-16 19:06:15,953 INFO L175 Difference]: Start difference. First operand has 59 places, 62 transitions, 190 flow. Second operand 3 states and 144 transitions. [2024-11-16 19:06:15,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 79 transitions, 335 flow [2024-11-16 19:06:15,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 79 transitions, 319 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:06:15,960 INFO L231 Difference]: Finished difference. Result has 61 places, 67 transitions, 248 flow [2024-11-16 19:06:15,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=61, PETRI_TRANSITIONS=67} [2024-11-16 19:06:15,961 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2024-11-16 19:06:15,961 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 67 transitions, 248 flow [2024-11-16 19:06:15,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:15,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:15,962 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:15,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:06:15,962 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:15,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1559469602, now seen corresponding path program 3 times [2024-11-16 19:06:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:15,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180304928] [2024-11-16 19:06:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:16,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:16,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180304928] [2024-11-16 19:06:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180304928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:16,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:16,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:16,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314022224] [2024-11-16 19:06:16,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:16,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:16,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:16,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:16,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:16,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 70 [2024-11-16 19:06:16,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 67 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-16 19:06:16,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:16,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 70 [2024-11-16 19:06:16,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:16,136 INFO L124 PetriNetUnfolderBase]: 428/930 cut-off events. [2024-11-16 19:06:16,136 INFO L125 PetriNetUnfolderBase]: For 1043/1062 co-relation queries the response was YES. [2024-11-16 19:06:16,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 930 events. 428/930 cut-off events. For 1043/1062 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4876 event pairs, 200 based on Foata normal form. 25/841 useless extension candidates. Maximal degree in co-relation 2250. Up to 539 conditions per place. [2024-11-16 19:06:16,143 INFO L140 encePairwiseOnDemand]: 61/70 looper letters, 39 selfloop transitions, 5 changer transitions 3/78 dead transitions. [2024-11-16 19:06:16,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 369 flow [2024-11-16 19:06:16,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-16 19:06:16,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6714285714285714 [2024-11-16 19:06:16,145 INFO L175 Difference]: Start difference. First operand has 61 places, 67 transitions, 248 flow. Second operand 3 states and 141 transitions. [2024-11-16 19:06:16,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 369 flow [2024-11-16 19:06:16,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 78 transitions, 351 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:06:16,149 INFO L231 Difference]: Finished difference. Result has 63 places, 66 transitions, 264 flow [2024-11-16 19:06:16,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=63, PETRI_TRANSITIONS=66} [2024-11-16 19:06:16,150 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 10 predicate places. [2024-11-16 19:06:16,150 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 66 transitions, 264 flow [2024-11-16 19:06:16,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2024-11-16 19:06:16,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:06:16,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:06:16,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:06:16,151 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:06:16,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:06:16,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1781729856, now seen corresponding path program 4 times [2024-11-16 19:06:16,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:06:16,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965916564] [2024-11-16 19:06:16,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:06:16,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:06:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:06:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:06:16,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:06:16,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965916564] [2024-11-16 19:06:16,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965916564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:06:16,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:06:16,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:06:16,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900842339] [2024-11-16 19:06:16,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:06:16,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:06:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:06:16,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:06:16,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:06:16,208 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 70 [2024-11-16 19:06:16,209 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 66 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:16,209 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:06:16,209 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 70 [2024-11-16 19:06:16,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:06:16,342 INFO L124 PetriNetUnfolderBase]: 513/1123 cut-off events. [2024-11-16 19:06:16,343 INFO L125 PetriNetUnfolderBase]: For 959/983 co-relation queries the response was YES. [2024-11-16 19:06:16,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 1123 events. 513/1123 cut-off events. For 959/983 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 6093 event pairs, 213 based on Foata normal form. 40/1107 useless extension candidates. Maximal degree in co-relation 2616. Up to 502 conditions per place. [2024-11-16 19:06:16,348 INFO L140 encePairwiseOnDemand]: 60/70 looper letters, 0 selfloop transitions, 0 changer transitions 81/81 dead transitions. [2024-11-16 19:06:16,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 81 transitions, 433 flow [2024-11-16 19:06:16,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:06:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:06:16,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2024-11-16 19:06:16,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2024-11-16 19:06:16,349 INFO L175 Difference]: Start difference. First operand has 63 places, 66 transitions, 264 flow. Second operand 3 states and 142 transitions. [2024-11-16 19:06:16,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 81 transitions, 433 flow [2024-11-16 19:06:16,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 81 transitions, 411 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-11-16 19:06:16,354 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2024-11-16 19:06:16,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2024-11-16 19:06:16,356 INFO L277 CegarLoopForPetriNet]: 53 programPoint places, 5 predicate places. [2024-11-16 19:06:16,356 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2024-11-16 19:06:16,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2024-11-16 19:06:16,359 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-16 19:06:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-16 19:06:16,361 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-16 19:06:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-16 19:06:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2024-11-16 19:06:16,362 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-16 19:06:16,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:06:16,363 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-16 19:06:16,369 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:06:16,369 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:06:16,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:06:16 BasicIcfg [2024-11-16 19:06:16,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:06:16,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:06:16,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:06:16,382 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:06:16,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:06:14" (3/4) ... [2024-11-16 19:06:16,384 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:06:16,387 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr2 [2024-11-16 19:06:16,387 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thr1 [2024-11-16 19:06:16,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2024-11-16 19:06:16,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-16 19:06:16,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 19:06:16,392 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 19:06:16,473 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:06:16,473 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:06:16,473 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:06:16,474 INFO L158 Benchmark]: Toolchain (without parser) took 3395.04ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 81.6MB in the beginning and 144.7MB in the end (delta: -63.0MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,474 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:06:16,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.62ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 109.1MB in the end (delta: -27.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,475 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.53ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 107.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:06:16,475 INFO L158 Benchmark]: Boogie Preprocessor took 51.87ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 105.4MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,476 INFO L158 Benchmark]: IcfgBuilder took 464.26ms. Allocated memory is still 148.9MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,476 INFO L158 Benchmark]: TraceAbstraction took 2145.16ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 86.6MB in the beginning and 55.2MB in the end (delta: 31.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,476 INFO L158 Benchmark]: Witness Printer took 95.03ms. Allocated memory is still 180.4MB. Free memory was 55.2MB in the beginning and 144.7MB in the end (delta: -89.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-11-16 19:06:16,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 96.5MB. Free memory was 50.0MB in the beginning and 49.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.62ms. Allocated memory is still 148.9MB. Free memory was 81.2MB in the beginning and 109.1MB in the end (delta: -27.9MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.53ms. Allocated memory is still 148.9MB. Free memory was 109.1MB in the beginning and 107.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.87ms. Allocated memory is still 148.9MB. Free memory was 107.0MB in the beginning and 105.4MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 464.26ms. Allocated memory is still 148.9MB. Free memory was 105.4MB in the beginning and 87.6MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2145.16ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 86.6MB in the beginning and 55.2MB in the end (delta: 31.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. * Witness Printer took 95.03ms. Allocated memory is still 180.4MB. Free memory was 55.2MB in the beginning and 144.7MB in the end (delta: -89.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 744]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 95 locations, 6 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: 2.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 23 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=264occurred in iteration=6, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-16 19:06:16,507 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