./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe035_power.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-wmm/safe035_power.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 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:17:05,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:17:05,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:17:05,663 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:17:05,663 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:17:05,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:17:05,678 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:17:05,679 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:17:05,679 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:17:05,679 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:17:05,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:17:05,680 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:17:05,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:17:05,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:17:05,681 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:17:05,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:17:05,681 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:17:05,682 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:17:05,682 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:17:05,682 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:17:05,682 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:17:05,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:17:05,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:17:05,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:17:05,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:17:05,684 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:17:05,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:17:05,685 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:17:05,685 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:17:05,685 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:17:05,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:17:05,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:17:05,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:17:05,686 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:17:05,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:17:05,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:17:05,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:17:05,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:17:05,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:17:05,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:17:05,687 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:17:05,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:17:05,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6415bffc70cf05f8f6460106962f2f9c59b321fd2fc94a45894cc3c1f3d85b66 [2024-11-16 19:17:05,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:17:05,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:17:05,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:17:05,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:17:05,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:17:05,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-16 19:17:07,229 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:17:07,467 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:17:07,467 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe035_power.i [2024-11-16 19:17:07,483 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b194eeb4/484b158194c947c9a85846d09d04c712/FLAGa479b1dce [2024-11-16 19:17:07,495 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b194eeb4/484b158194c947c9a85846d09d04c712 [2024-11-16 19:17:07,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:17:07,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:17:07,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:17:07,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:17:07,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:17:07,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:17:07" (1/1) ... [2024-11-16 19:17:07,506 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8f7348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:07, skipping insertion in model container [2024-11-16 19:17:07,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:17:07" (1/1) ... [2024-11-16 19:17:07,545 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:17:07,755 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-wmm/safe035_power.i[947,960] [2024-11-16 19:17:07,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:17:07,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:17:07,937 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-wmm/safe035_power.i[947,960] [2024-11-16 19:17:08,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:17:08,040 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:17:08,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08 WrapperNode [2024-11-16 19:17:08,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:17:08,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:17:08,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:17:08,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:17:08,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,067 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,101 INFO L138 Inliner]: procedures = 175, calls = 48, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 165 [2024-11-16 19:17:08,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:17:08,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:17:08,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:17:08,106 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:17:08,118 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,122 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,135 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 19:17:08,136 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,143 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,143 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,144 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:17:08,150 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:17:08,150 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:17:08,150 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:17:08,150 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (1/1) ... [2024-11-16 19:17:08,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:17:08,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:17:08,189 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 19:17:08,193 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 19:17:08,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:17:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:17:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:17:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:17:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:17:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:17:08,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:17:08,251 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 19:17:08,350 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:17:08,352 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:17:08,685 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:17:08,685 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:17:08,951 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:17:08,952 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:17:08,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:08 BoogieIcfgContainer [2024-11-16 19:17:08,953 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:17:08,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:17:08,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:17:08,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:17:08,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:17:07" (1/3) ... [2024-11-16 19:17:08,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a34f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:17:08, skipping insertion in model container [2024-11-16 19:17:08,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:17:08" (2/3) ... [2024-11-16 19:17:08,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a34f7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:17:08, skipping insertion in model container [2024-11-16 19:17:08,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:08" (3/3) ... [2024-11-16 19:17:08,961 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_power.i [2024-11-16 19:17:08,976 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:17:08,976 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:17:08,976 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:17:09,029 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:17:09,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 42 transitions, 96 flow [2024-11-16 19:17:09,097 INFO L124 PetriNetUnfolderBase]: 1/39 cut-off events. [2024-11-16 19:17:09,097 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:17:09,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 39 events. 1/39 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 41. Up to 2 conditions per place. [2024-11-16 19:17:09,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 42 transitions, 96 flow [2024-11-16 19:17:09,105 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 48 places, 39 transitions, 87 flow [2024-11-16 19:17:09,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:17:09,127 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;@b929e5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:17:09,127 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-16 19:17:09,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:17:09,135 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2024-11-16 19:17:09,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:17:09,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:09,140 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:09,140 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:09,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:09,147 INFO L85 PathProgramCache]: Analyzing trace with hash 8431086, now seen corresponding path program 1 times [2024-11-16 19:17:09,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:09,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000625734] [2024-11-16 19:17:09,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:09,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:09,622 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 19:17:09,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:09,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000625734] [2024-11-16 19:17:09,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000625734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:09,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:09,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 19:17:09,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745386072] [2024-11-16 19:17:09,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:09,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:17:09,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:09,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:17:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:17:09,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:09,656 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 19:17:09,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:09,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:09,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:11,046 INFO L124 PetriNetUnfolderBase]: 7776/11085 cut-off events. [2024-11-16 19:17:11,046 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-16 19:17:11,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22180 conditions, 11085 events. 7776/11085 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 60091 event pairs, 888 based on Foata normal form. 343/11415 useless extension candidates. Maximal degree in co-relation 22169. Up to 9535 conditions per place. [2024-11-16 19:17:11,106 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 48 selfloop transitions, 2 changer transitions 2/57 dead transitions. [2024-11-16 19:17:11,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 227 flow [2024-11-16 19:17:11,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:17:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:17:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 79 transitions. [2024-11-16 19:17:11,116 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.626984126984127 [2024-11-16 19:17:11,117 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 87 flow. Second operand 3 states and 79 transitions. [2024-11-16 19:17:11,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 227 flow [2024-11-16 19:17:11,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 57 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-16 19:17:11,124 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-16 19:17:11,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-16 19:17:11,131 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, -2 predicate places. [2024-11-16 19:17:11,131 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-16 19:17:11,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 19:17:11,131 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:11,131 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:11,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:17:11,132 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:11,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:11,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2115931394, now seen corresponding path program 1 times [2024-11-16 19:17:11,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:11,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088111038] [2024-11-16 19:17:11,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:11,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:11,342 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 19:17:11,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:11,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088111038] [2024-11-16 19:17:11,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088111038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:11,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:11,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:17:11,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766790869] [2024-11-16 19:17:11,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:11,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:17:11,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:11,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:17:11,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:17:11,347 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:11,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 19:17:11,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:11,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:11,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:12,448 INFO L124 PetriNetUnfolderBase]: 5308/8205 cut-off events. [2024-11-16 19:17:12,448 INFO L125 PetriNetUnfolderBase]: For 291/291 co-relation queries the response was YES. [2024-11-16 19:17:12,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16372 conditions, 8205 events. 5308/8205 cut-off events. For 291/291 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 47980 event pairs, 994 based on Foata normal form. 343/8535 useless extension candidates. Maximal degree in co-relation 16362. Up to 4351 conditions per place. [2024-11-16 19:17:12,481 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 64 selfloop transitions, 5 changer transitions 1/75 dead transitions. [2024-11-16 19:17:12,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 75 transitions, 308 flow [2024-11-16 19:17:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:17:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:17:12,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 104 transitions. [2024-11-16 19:17:12,482 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6190476190476191 [2024-11-16 19:17:12,482 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 4 states and 104 transitions. [2024-11-16 19:17:12,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 75 transitions, 308 flow [2024-11-16 19:17:12,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 75 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:17:12,488 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2024-11-16 19:17:12,488 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2024-11-16 19:17:12,489 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2024-11-16 19:17:12,489 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2024-11-16 19:17:12,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 19:17:12,489 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:12,490 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] [2024-11-16 19:17:12,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:17:12,490 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:12,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:12,492 INFO L85 PathProgramCache]: Analyzing trace with hash 333555047, now seen corresponding path program 1 times [2024-11-16 19:17:12,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:12,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239855891] [2024-11-16 19:17:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:12,734 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 19:17:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239855891] [2024-11-16 19:17:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239855891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:12,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:12,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:17:12,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866601385] [2024-11-16 19:17:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:17:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:12,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:17:12,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:17:12,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:12,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:17:12,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:12,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:12,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:13,307 INFO L124 PetriNetUnfolderBase]: 2833/4405 cut-off events. [2024-11-16 19:17:13,308 INFO L125 PetriNetUnfolderBase]: For 797/797 co-relation queries the response was YES. [2024-11-16 19:17:13,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9995 conditions, 4405 events. 2833/4405 cut-off events. For 797/797 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 22421 event pairs, 651 based on Foata normal form. 218/4610 useless extension candidates. Maximal degree in co-relation 9983. Up to 1515 conditions per place. [2024-11-16 19:17:13,324 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 82 selfloop transitions, 8 changer transitions 1/96 dead transitions. [2024-11-16 19:17:13,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 96 transitions, 429 flow [2024-11-16 19:17:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:17:13,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:17:13,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 133 transitions. [2024-11-16 19:17:13,326 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2024-11-16 19:17:13,326 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 5 states and 133 transitions. [2024-11-16 19:17:13,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 96 transitions, 429 flow [2024-11-16 19:17:13,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 96 transitions, 419 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:17:13,329 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 152 flow [2024-11-16 19:17:13,329 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2024-11-16 19:17:13,330 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 4 predicate places. [2024-11-16 19:17:13,330 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 152 flow [2024-11-16 19:17:13,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 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 19:17:13,330 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:13,330 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 19:17:13,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:17:13,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:13,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:13,332 INFO L85 PathProgramCache]: Analyzing trace with hash 2038236540, now seen corresponding path program 1 times [2024-11-16 19:17:13,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:13,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975839871] [2024-11-16 19:17:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:13,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:13,676 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 19:17:13,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:13,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975839871] [2024-11-16 19:17:13,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975839871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:13,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:13,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:17:13,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784838352] [2024-11-16 19:17:13,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:13,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:17:13,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:13,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:17:13,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:17:13,681 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:13,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 19:17:13,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:13,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:13,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:14,188 INFO L124 PetriNetUnfolderBase]: 1798/2740 cut-off events. [2024-11-16 19:17:14,188 INFO L125 PetriNetUnfolderBase]: For 1492/1492 co-relation queries the response was YES. [2024-11-16 19:17:14,193 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6707 conditions, 2740 events. 1798/2740 cut-off events. For 1492/1492 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 12585 event pairs, 594 based on Foata normal form. 68/2795 useless extension candidates. Maximal degree in co-relation 6693. Up to 1050 conditions per place. [2024-11-16 19:17:14,200 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 68 selfloop transitions, 11 changer transitions 1/85 dead transitions. [2024-11-16 19:17:14,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 85 transitions, 408 flow [2024-11-16 19:17:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:17:14,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:17:14,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-16 19:17:14,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5158730158730159 [2024-11-16 19:17:14,202 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 152 flow. Second operand 6 states and 130 transitions. [2024-11-16 19:17:14,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 85 transitions, 408 flow [2024-11-16 19:17:14,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 85 transitions, 383 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-16 19:17:14,214 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 166 flow [2024-11-16 19:17:14,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2024-11-16 19:17:14,215 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 7 predicate places. [2024-11-16 19:17:14,215 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 166 flow [2024-11-16 19:17:14,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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 19:17:14,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:14,215 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:14,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:17:14,216 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:14,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash -811756930, now seen corresponding path program 1 times [2024-11-16 19:17:14,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:14,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488714740] [2024-11-16 19:17:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:14,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:14,834 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 19:17:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:14,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488714740] [2024-11-16 19:17:14,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488714740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:14,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:14,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:17:14,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66047952] [2024-11-16 19:17:14,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:14,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:17:14,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:14,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:17:14,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:17:14,847 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:14,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 19:17:14,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:14,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:14,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:15,551 INFO L124 PetriNetUnfolderBase]: 2462/3764 cut-off events. [2024-11-16 19:17:15,551 INFO L125 PetriNetUnfolderBase]: For 2424/2424 co-relation queries the response was YES. [2024-11-16 19:17:15,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9408 conditions, 3764 events. 2462/3764 cut-off events. For 2424/2424 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 18571 event pairs, 220 based on Foata normal form. 8/3764 useless extension candidates. Maximal degree in co-relation 9393. Up to 2154 conditions per place. [2024-11-16 19:17:15,560 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 50 selfloop transitions, 1 changer transitions 37/93 dead transitions. [2024-11-16 19:17:15,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 93 transitions, 544 flow [2024-11-16 19:17:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 19:17:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-16 19:17:15,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 123 transitions. [2024-11-16 19:17:15,564 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4880952380952381 [2024-11-16 19:17:15,564 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 166 flow. Second operand 6 states and 123 transitions. [2024-11-16 19:17:15,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 93 transitions, 544 flow [2024-11-16 19:17:15,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 93 transitions, 419 flow, removed 20 selfloop flow, removed 8 redundant places. [2024-11-16 19:17:15,574 INFO L231 Difference]: Finished difference. Result has 56 places, 42 transitions, 121 flow [2024-11-16 19:17:15,574 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=121, PETRI_PLACES=56, PETRI_TRANSITIONS=42} [2024-11-16 19:17:15,575 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 8 predicate places. [2024-11-16 19:17:15,575 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 42 transitions, 121 flow [2024-11-16 19:17:15,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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 19:17:15,575 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:15,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:15,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:17:15,576 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:15,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:15,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1428412682, now seen corresponding path program 2 times [2024-11-16 19:17:15,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:15,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054019443] [2024-11-16 19:17:15,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:15,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:15,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:20,172 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 19:17:20,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:20,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054019443] [2024-11-16 19:17:20,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054019443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:20,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:20,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-16 19:17:20,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327440626] [2024-11-16 19:17:20,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:20,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 19:17:20,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:20,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 19:17:20,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-16 19:17:20,194 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:20,196 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 42 transitions, 121 flow. Second operand has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:17:20,196 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:20,196 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:20,196 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:21,857 INFO L124 PetriNetUnfolderBase]: 3510/5463 cut-off events. [2024-11-16 19:17:21,858 INFO L125 PetriNetUnfolderBase]: For 987/987 co-relation queries the response was YES. [2024-11-16 19:17:21,864 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12096 conditions, 5463 events. 3510/5463 cut-off events. For 987/987 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 29178 event pairs, 512 based on Foata normal form. 16/5468 useless extension candidates. Maximal degree in co-relation 12082. Up to 1421 conditions per place. [2024-11-16 19:17:21,868 INFO L140 encePairwiseOnDemand]: 29/42 looper letters, 43 selfloop transitions, 9 changer transitions 164/221 dead transitions. [2024-11-16 19:17:21,868 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 221 transitions, 1053 flow [2024-11-16 19:17:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-16 19:17:21,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-16 19:17:21,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 320 transitions. [2024-11-16 19:17:21,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4481792717086835 [2024-11-16 19:17:21,869 INFO L175 Difference]: Start difference. First operand has 56 places, 42 transitions, 121 flow. Second operand 17 states and 320 transitions. [2024-11-16 19:17:21,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 221 transitions, 1053 flow [2024-11-16 19:17:21,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 221 transitions, 1032 flow, removed 7 selfloop flow, removed 4 redundant places. [2024-11-16 19:17:21,872 INFO L231 Difference]: Finished difference. Result has 75 places, 47 transitions, 188 flow [2024-11-16 19:17:21,873 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=188, PETRI_PLACES=75, PETRI_TRANSITIONS=47} [2024-11-16 19:17:21,874 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 27 predicate places. [2024-11-16 19:17:21,875 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 47 transitions, 188 flow [2024-11-16 19:17:21,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.153846153846153) internal successors, (132), 13 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:17:21,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:17:21,875 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:17:21,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:17:21,875 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-16 19:17:21,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:17:21,876 INFO L85 PathProgramCache]: Analyzing trace with hash -533031160, now seen corresponding path program 3 times [2024-11-16 19:17:21,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:17:21,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421996164] [2024-11-16 19:17:21,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:17:21,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:17:22,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:17:25,731 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 19:17:25,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:17:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421996164] [2024-11-16 19:17:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421996164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:17:25,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:17:25,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-16 19:17:25,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891960315] [2024-11-16 19:17:25,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:17:25,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-16 19:17:25,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:17:25,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-16 19:17:25,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-16 19:17:25,744 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 42 [2024-11-16 19:17:25,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 47 transitions, 188 flow. Second operand has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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 19:17:25,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:17:25,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 42 [2024-11-16 19:17:25,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:17:26,502 INFO L124 PetriNetUnfolderBase]: 1565/2490 cut-off events. [2024-11-16 19:17:26,502 INFO L125 PetriNetUnfolderBase]: For 1959/1959 co-relation queries the response was YES. [2024-11-16 19:17:26,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7486 conditions, 2490 events. 1565/2490 cut-off events. For 1959/1959 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12039 event pairs, 343 based on Foata normal form. 8/2495 useless extension candidates. Maximal degree in co-relation 7472. Up to 977 conditions per place. [2024-11-16 19:17:26,520 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 0 selfloop transitions, 0 changer transitions 112/112 dead transitions. [2024-11-16 19:17:26,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 112 transitions, 667 flow [2024-11-16 19:17:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:17:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:17:26,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 165 transitions. [2024-11-16 19:17:26,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39285714285714285 [2024-11-16 19:17:26,522 INFO L175 Difference]: Start difference. First operand has 75 places, 47 transitions, 188 flow. Second operand 10 states and 165 transitions. [2024-11-16 19:17:26,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 112 transitions, 667 flow [2024-11-16 19:17:26,526 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 112 transitions, 621 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-16 19:17:26,527 INFO L231 Difference]: Finished difference. Result has 65 places, 0 transitions, 0 flow [2024-11-16 19:17:26,527 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=65, PETRI_TRANSITIONS=0} [2024-11-16 19:17:26,528 INFO L277 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2024-11-16 19:17:26,528 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 0 transitions, 0 flow [2024-11-16 19:17:26,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.0) internal successors, (140), 14 states have internal predecessors, (140), 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 19:17:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2024-11-16 19:17:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2024-11-16 19:17:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-16 19:17:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 6 remaining) [2024-11-16 19:17:26,532 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 6 remaining) [2024-11-16 19:17:26,533 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2024-11-16 19:17:26,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 19:17:26,533 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1] [2024-11-16 19:17:26,537 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:17:26,537 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:17:26,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:17:26 BasicIcfg [2024-11-16 19:17:26,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:17:26,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:17:26,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:17:26,542 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:17:26,542 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:17:08" (3/4) ... [2024-11-16 19:17:26,543 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 19:17:26,545 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-16 19:17:26,545 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-16 19:17:26,545 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-16 19:17:26,548 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2024-11-16 19:17:26,549 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-16 19:17:26,549 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-16 19:17:26,549 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-16 19:17:26,614 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:17:26,616 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 19:17:26,616 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:17:26,617 INFO L158 Benchmark]: Toolchain (without parser) took 19118.74ms. Allocated memory was 155.2MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 85.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 281.4MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,617 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:17:26,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.75ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 104.4MB in the end (delta: -19.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,618 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.19ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 100.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,618 INFO L158 Benchmark]: Boogie Preprocessor took 43.24ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 95.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,618 INFO L158 Benchmark]: IcfgBuilder took 803.75ms. Allocated memory is still 155.2MB. Free memory was 95.0MB in the beginning and 80.2MB in the end (delta: 14.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,618 INFO L158 Benchmark]: TraceAbstraction took 17586.64ms. Allocated memory was 155.2MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 80.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 269.9MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,620 INFO L158 Benchmark]: Witness Printer took 74.92ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:17:26,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 112.5MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.75ms. Allocated memory is still 155.2MB. Free memory was 85.0MB in the beginning and 104.4MB in the end (delta: -19.4MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.19ms. Allocated memory is still 155.2MB. Free memory was 104.4MB in the beginning and 100.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.24ms. Allocated memory is still 155.2MB. Free memory was 100.7MB in the beginning and 95.0MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * IcfgBuilder took 803.75ms. Allocated memory is still 155.2MB. Free memory was 95.0MB in the beginning and 80.2MB in the end (delta: 14.8MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. * TraceAbstraction took 17586.64ms. Allocated memory was 155.2MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 80.2MB in the beginning and 1.4GB in the end (delta: -1.3GB). Peak memory consumption was 269.9MB. Max. memory is 16.1GB. * Witness Printer took 74.92ms. Allocated memory is still 1.7GB. Free memory was 1.4GB in the beginning and 1.4GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: 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: 18]: 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 7 procedures, 70 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: 17.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 518 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 512 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 113 mSDsCounter, 95 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2135 IncrementalHoareTripleChecker+Invalid, 2230 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 95 mSolverCounterUnsat, 4 mSDtfsCounter, 2135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=6, InterpolantAutomatonStates: 51, 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, 0.8s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 157 ConstructedInterpolants, 0 QuantifiedInterpolants, 1270 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 19:17:26,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE