./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/sync01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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/sync01.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:33:56,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:33:56,642 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:33:56,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:33:56,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:33:56,670 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:33:56,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:33:56,671 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:33:56,672 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:33:56,672 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:33:56,673 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:33:56,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:33:56,674 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:33:56,676 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:33:56,676 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:33:56,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:33:56,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:33:56,677 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:33:56,677 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:33:56,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:33:56,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:33:56,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:33:56,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:33:56,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:33:56,683 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:33:56,684 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:33:56,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:33:56,684 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:33:56,684 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:33:56,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:33:56,685 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:33:56,686 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:33:56,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:33:56,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:33:56,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:33:56,687 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:33:56,687 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:33:56,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:33:56,688 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:33:56,688 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f929a317f167560539ae4b4d441a695b43dc484839e0d977f902275d758b932 [2024-11-17 07:33:56,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:33:56,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:33:56,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:33:56,980 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:33:56,981 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:33:56,982 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sync01.i [2024-11-17 07:33:58,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:33:58,729 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:33:58,730 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sync01.i [2024-11-17 07:33:58,750 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51224420/4d44d65e4aaf44af9dc07281f68d12d3/FLAG6a0f1fc54 [2024-11-17 07:33:59,054 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51224420/4d44d65e4aaf44af9dc07281f68d12d3 [2024-11-17 07:33:59,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:33:59,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:33:59,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:33:59,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:33:59,063 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:33:59,064 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f93f5c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59, skipping insertion in model container [2024-11-17 07:33:59,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,120 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:33:59,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:33:59,583 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:33:59,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:33:59,708 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:33:59,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59 WrapperNode [2024-11-17 07:33:59,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:33:59,711 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:33:59,711 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:33:59,711 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:33:59,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,743 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,777 INFO L138 Inliner]: procedures = 268, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 254 [2024-11-17 07:33:59,778 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:33:59,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:33:59,779 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:33:59,779 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:33:59,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,828 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5]. The 0 writes are split as follows [0, 0]. [2024-11-17 07:33:59,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,830 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,842 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,855 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:33:59,862 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:33:59,862 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:33:59,862 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:33:59,863 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (1/1) ... [2024-11-17 07:33:59,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:33:59,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:33:59,907 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) [2024-11-17 07:33:59,910 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 [2024-11-17 07:33:59,979 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:33:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:33:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:33:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:33:59,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:33:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:33:59,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:33:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:33:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:33:59,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:33:59,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:33:59,986 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:34:00,154 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:34:00,157 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:34:00,496 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:34:00,497 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:34:01,420 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:34:01,421 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:34:01,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:34:01 BoogieIcfgContainer [2024-11-17 07:34:01,422 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:34:01,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:34:01,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:34:01,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:34:01,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:33:59" (1/3) ... [2024-11-17 07:34:01,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761ddf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:34:01, skipping insertion in model container [2024-11-17 07:34:01,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:59" (2/3) ... [2024-11-17 07:34:01,430 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761ddf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:34:01, skipping insertion in model container [2024-11-17 07:34:01,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:34:01" (3/3) ... [2024-11-17 07:34:01,431 INFO L112 eAbstractionObserver]: Analyzing ICFG sync01.i [2024-11-17 07:34:01,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:34:01,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-17 07:34:01,448 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:34:01,508 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:34:01,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 42 transitions, 98 flow [2024-11-17 07:34:01,609 INFO L124 PetriNetUnfolderBase]: 4/40 cut-off events. [2024-11-17 07:34:01,609 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:34:01,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 4/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 74 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 37. Up to 2 conditions per place. [2024-11-17 07:34:01,614 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 42 transitions, 98 flow [2024-11-17 07:34:01,618 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 38 transitions, 85 flow [2024-11-17 07:34:01,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:34:01,638 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;@164ddcec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:34:01,639 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 07:34:01,687 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:34:01,687 INFO L124 PetriNetUnfolderBase]: 2/19 cut-off events. [2024-11-17 07:34:01,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:34:01,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:01,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:01,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:01,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:01,695 INFO L85 PathProgramCache]: Analyzing trace with hash 525652221, now seen corresponding path program 1 times [2024-11-17 07:34:01,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:01,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402777726] [2024-11-17 07:34:01,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:01,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:02,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:02,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:02,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402777726] [2024-11-17 07:34:02,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402777726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:02,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:02,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:34:02,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965963972] [2024-11-17 07:34:02,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:02,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 07:34:02,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:02,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 07:34:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 07:34:02,556 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 42 [2024-11-17 07:34:02,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 38 transitions, 85 flow. Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-11-17 07:34:02,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:02,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 42 [2024-11-17 07:34:02,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:02,725 INFO L124 PetriNetUnfolderBase]: 185/464 cut-off events. [2024-11-17 07:34:02,728 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:34:02,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 791 conditions, 464 events. 185/464 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2555 event pairs, 128 based on Foata normal form. 51/423 useless extension candidates. Maximal degree in co-relation 744. Up to 301 conditions per place. [2024-11-17 07:34:02,737 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 18 selfloop transitions, 0 changer transitions 0/36 dead transitions. [2024-11-17 07:34:02,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 117 flow [2024-11-17 07:34:02,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 07:34:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-17 07:34:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 60 transitions. [2024-11-17 07:34:02,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2024-11-17 07:34:02,751 INFO L175 Difference]: Start difference. First operand has 41 places, 38 transitions, 85 flow. Second operand 2 states and 60 transitions. [2024-11-17 07:34:02,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 117 flow [2024-11-17 07:34:02,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 36 transitions, 112 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:34:02,756 INFO L231 Difference]: Finished difference. Result has 39 places, 36 transitions, 76 flow [2024-11-17 07:34:02,758 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=76, PETRI_PLACES=39, PETRI_TRANSITIONS=36} [2024-11-17 07:34:02,762 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2024-11-17 07:34:02,762 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 36 transitions, 76 flow [2024-11-17 07:34:02,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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) [2024-11-17 07:34:02,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:02,763 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:02,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:34:02,763 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:02,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:02,764 INFO L85 PathProgramCache]: Analyzing trace with hash -884681496, now seen corresponding path program 1 times [2024-11-17 07:34:02,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:02,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721287537] [2024-11-17 07:34:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:02,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:03,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:03,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721287537] [2024-11-17 07:34:03,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721287537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:03,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:03,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:34:03,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862155851] [2024-11-17 07:34:03,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:03,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:34:03,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:34:03,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:34:03,200 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 42 [2024-11-17 07:34:03,200 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 36 transitions, 76 flow. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2024-11-17 07:34:03,201 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:03,201 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 42 [2024-11-17 07:34:03,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:03,296 INFO L124 PetriNetUnfolderBase]: 96/233 cut-off events. [2024-11-17 07:34:03,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:34:03,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 416 conditions, 233 events. 96/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 875 event pairs, 36 based on Foata normal form. 12/225 useless extension candidates. Maximal degree in co-relation 413. Up to 124 conditions per place. [2024-11-17 07:34:03,298 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 15 selfloop transitions, 2 changer transitions 4/37 dead transitions. [2024-11-17 07:34:03,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 37 transitions, 120 flow [2024-11-17 07:34:03,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:34:03,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:34:03,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 77 transitions. [2024-11-17 07:34:03,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-17 07:34:03,302 INFO L175 Difference]: Start difference. First operand has 39 places, 36 transitions, 76 flow. Second operand 3 states and 77 transitions. [2024-11-17 07:34:03,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 37 transitions, 120 flow [2024-11-17 07:34:03,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 37 transitions, 120 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:34:03,304 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 69 flow [2024-11-17 07:34:03,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2024-11-17 07:34:03,305 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-11-17 07:34:03,307 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 69 flow [2024-11-17 07:34:03,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2024-11-17 07:34:03,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:03,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:03,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:34:03,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:03,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1730346190, now seen corresponding path program 1 times [2024-11-17 07:34:03,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:03,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899318721] [2024-11-17 07:34:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:03,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:03,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:03,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:03,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899318721] [2024-11-17 07:34:03,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899318721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:03,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:03,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:34:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472194375] [2024-11-17 07:34:03,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:03,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:34:03,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:34:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:34:03,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 42 [2024-11-17 07:34:03,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 07:34:03,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:03,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 42 [2024-11-17 07:34:03,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:03,835 INFO L124 PetriNetUnfolderBase]: 85/205 cut-off events. [2024-11-17 07:34:03,835 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-17 07:34:03,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 205 events. 85/205 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 809 event pairs, 22 based on Foata normal form. 16/204 useless extension candidates. Maximal degree in co-relation 390. Up to 80 conditions per place. [2024-11-17 07:34:03,839 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 19 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-11-17 07:34:03,839 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 35 transitions, 125 flow [2024-11-17 07:34:03,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:34:03,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:34:03,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 84 transitions. [2024-11-17 07:34:03,843 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-17 07:34:03,844 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 69 flow. Second operand 4 states and 84 transitions. [2024-11-17 07:34:03,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 35 transitions, 125 flow [2024-11-17 07:34:03,845 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 121 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:34:03,846 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 67 flow [2024-11-17 07:34:03,846 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=67, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-11-17 07:34:03,847 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2024-11-17 07:34:03,848 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 67 flow [2024-11-17 07:34:03,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 07:34:03,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:03,849 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:03,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:34:03,849 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:03,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:03,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2072444966, now seen corresponding path program 1 times [2024-11-17 07:34:03,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:03,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563806743] [2024-11-17 07:34:03,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:03,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:04,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:04,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:04,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563806743] [2024-11-17 07:34:04,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563806743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:04,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:04,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:34:04,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215963275] [2024-11-17 07:34:04,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:04,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:34:04,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:04,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:34:04,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:34:04,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-17 07:34:04,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 67 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-17 07:34:04,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:04,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-17 07:34:04,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:04,358 INFO L124 PetriNetUnfolderBase]: 59/169 cut-off events. [2024-11-17 07:34:04,358 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-17 07:34:04,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 169 events. 59/169 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 557 event pairs, 15 based on Foata normal form. 12/171 useless extension candidates. Maximal degree in co-relation 315. Up to 75 conditions per place. [2024-11-17 07:34:04,360 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 17 selfloop transitions, 6 changer transitions 0/35 dead transitions. [2024-11-17 07:34:04,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 35 transitions, 131 flow [2024-11-17 07:34:04,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:34:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:34:04,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2024-11-17 07:34:04,361 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-17 07:34:04,362 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 67 flow. Second operand 4 states and 90 transitions. [2024-11-17 07:34:04,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 35 transitions, 131 flow [2024-11-17 07:34:04,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 35 transitions, 125 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:34:04,363 INFO L231 Difference]: Finished difference. Result has 37 places, 30 transitions, 99 flow [2024-11-17 07:34:04,363 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=61, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=99, PETRI_PLACES=37, PETRI_TRANSITIONS=30} [2024-11-17 07:34:04,364 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -4 predicate places. [2024-11-17 07:34:04,364 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 99 flow [2024-11-17 07:34:04,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-17 07:34:04,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:04,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:04,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:34:04,367 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:04,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:04,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1708481626, now seen corresponding path program 2 times [2024-11-17 07:34:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138472884] [2024-11-17 07:34:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:04,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:04,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:04,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138472884] [2024-11-17 07:34:04,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138472884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:04,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:04,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:34:04,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368455230] [2024-11-17 07:34:04,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:04,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:34:04,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:04,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:34:04,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:34:04,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 42 [2024-11-17 07:34:04,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 99 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-17 07:34:04,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:04,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 42 [2024-11-17 07:34:04,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:04,821 INFO L124 PetriNetUnfolderBase]: 43/143 cut-off events. [2024-11-17 07:34:04,821 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-11-17 07:34:04,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 320 conditions, 143 events. 43/143 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 433 event pairs, 3 based on Foata normal form. 4/141 useless extension candidates. Maximal degree in co-relation 313. Up to 34 conditions per place. [2024-11-17 07:34:04,822 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 15 selfloop transitions, 10 changer transitions 0/37 dead transitions. [2024-11-17 07:34:04,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 37 transitions, 165 flow [2024-11-17 07:34:04,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:34:04,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:34:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 107 transitions. [2024-11-17 07:34:04,824 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5095238095238095 [2024-11-17 07:34:04,824 INFO L175 Difference]: Start difference. First operand has 37 places, 30 transitions, 99 flow. Second operand 5 states and 107 transitions. [2024-11-17 07:34:04,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 37 transitions, 165 flow [2024-11-17 07:34:04,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 37 transitions, 163 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:34:04,826 INFO L231 Difference]: Finished difference. Result has 40 places, 30 transitions, 117 flow [2024-11-17 07:34:04,826 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=97, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=117, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2024-11-17 07:34:04,828 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-11-17 07:34:04,829 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 117 flow [2024-11-17 07:34:04,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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) [2024-11-17 07:34:04,830 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:04,830 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] [2024-11-17 07:34:04,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:34:04,831 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:04,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:04,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1361512201, now seen corresponding path program 1 times [2024-11-17 07:34:04,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:04,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982744915] [2024-11-17 07:34:04,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:04,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:05,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:05,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982744915] [2024-11-17 07:34:05,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982744915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:05,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:05,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:34:05,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732433706] [2024-11-17 07:34:05,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:05,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:34:05,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:05,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:34:05,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:34:05,168 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 42 [2024-11-17 07:34:05,168 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 117 flow. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-17 07:34:05,168 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:05,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 42 [2024-11-17 07:34:05,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:05,274 INFO L124 PetriNetUnfolderBase]: 56/150 cut-off events. [2024-11-17 07:34:05,275 INFO L125 PetriNetUnfolderBase]: For 119/119 co-relation queries the response was YES. [2024-11-17 07:34:05,275 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 150 events. 56/150 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 448 event pairs, 19 based on Foata normal form. 4/146 useless extension candidates. Maximal degree in co-relation 383. Up to 55 conditions per place. [2024-11-17 07:34:05,276 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 21 selfloop transitions, 4 changer transitions 0/34 dead transitions. [2024-11-17 07:34:05,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 34 transitions, 175 flow [2024-11-17 07:34:05,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:34:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:34:05,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 92 transitions. [2024-11-17 07:34:05,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.36507936507936506 [2024-11-17 07:34:05,279 INFO L175 Difference]: Start difference. First operand has 40 places, 30 transitions, 117 flow. Second operand 6 states and 92 transitions. [2024-11-17 07:34:05,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 34 transitions, 175 flow [2024-11-17 07:34:05,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 34 transitions, 145 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:34:05,283 INFO L231 Difference]: Finished difference. Result has 40 places, 29 transitions, 93 flow [2024-11-17 07:34:05,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93, PETRI_PLACES=40, PETRI_TRANSITIONS=29} [2024-11-17 07:34:05,283 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -1 predicate places. [2024-11-17 07:34:05,284 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 29 transitions, 93 flow [2024-11-17 07:34:05,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 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) [2024-11-17 07:34:05,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:34:05,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:34:05,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:34:05,284 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:34:05,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:34:05,285 INFO L85 PathProgramCache]: Analyzing trace with hash 123444345, now seen corresponding path program 1 times [2024-11-17 07:34:05,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:34:05,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935303762] [2024-11-17 07:34:05,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:34:05,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:34:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:34:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:34:05,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:34:05,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935303762] [2024-11-17 07:34:05,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935303762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:34:05,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:34:05,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:34:05,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938091918] [2024-11-17 07:34:05,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:34:05,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:34:05,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:34:05,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:34:05,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:34:05,625 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 42 [2024-11-17 07:34:05,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 29 transitions, 93 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 07:34:05,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:34:05,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 42 [2024-11-17 07:34:05,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:34:05,710 INFO L124 PetriNetUnfolderBase]: 47/135 cut-off events. [2024-11-17 07:34:05,710 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-17 07:34:05,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 135 events. 47/135 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 399 event pairs, 27 based on Foata normal form. 4/135 useless extension candidates. Maximal degree in co-relation 302. Up to 84 conditions per place. [2024-11-17 07:34:05,711 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2024-11-17 07:34:05,711 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 143 flow [2024-11-17 07:34:05,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:34:05,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:34:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2024-11-17 07:34:05,714 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4523809523809524 [2024-11-17 07:34:05,715 INFO L175 Difference]: Start difference. First operand has 40 places, 29 transitions, 93 flow. Second operand 4 states and 76 transitions. [2024-11-17 07:34:05,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 143 flow [2024-11-17 07:34:05,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 136 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:34:05,716 INFO L231 Difference]: Finished difference. Result has 38 places, 0 transitions, 0 flow [2024-11-17 07:34:05,716 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=38, PETRI_TRANSITIONS=0} [2024-11-17 07:34:05,717 INFO L277 CegarLoopForPetriNet]: 41 programPoint places, -3 predicate places. [2024-11-17 07:34:05,717 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 0 transitions, 0 flow [2024-11-17 07:34:05,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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) [2024-11-17 07:34:05,721 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-17 07:34:05,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-17 07:34:05,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-17 07:34:05,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-17 07:34:05,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-17 07:34:05,723 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-17 07:34:05,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-17 07:34:05,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-17 07:34:05,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-17 07:34:05,724 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-17 07:34:05,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:34:05,725 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-17 07:34:05,730 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:34:05,730 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:34:05,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:34:05 BasicIcfg [2024-11-17 07:34:05,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:34:05,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:34:05,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:34:05,738 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:34:05,738 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:34:01" (3/4) ... [2024-11-17 07:34:05,741 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:34:05,744 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:34:05,744 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:34:05,759 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 141 nodes and edges [2024-11-17 07:34:05,760 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2024-11-17 07:34:05,764 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-17 07:34:05,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-17 07:34:05,765 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 07:34:05,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-17 07:34:05,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 07:34:05,766 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-17 07:34:05,869 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:34:05,869 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:34:05,869 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:34:05,870 INFO L158 Benchmark]: Toolchain (without parser) took 6812.35ms. Allocated memory was 165.7MB in the beginning and 421.5MB in the end (delta: 255.9MB). Free memory was 113.6MB in the beginning and 209.5MB in the end (delta: -95.9MB). Peak memory consumption was 160.5MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,870 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 165.7MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:34:05,870 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.07ms. Allocated memory is still 165.7MB. Free memory was 113.6MB in the beginning and 80.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,871 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.90ms. Allocated memory is still 165.7MB. Free memory was 80.0MB in the beginning and 77.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,871 INFO L158 Benchmark]: Boogie Preprocessor took 82.11ms. Allocated memory is still 165.7MB. Free memory was 77.0MB in the beginning and 73.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,871 INFO L158 Benchmark]: IcfgBuilder took 1560.76ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 73.3MB in the beginning and 90.2MB in the end (delta: -16.9MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,872 INFO L158 Benchmark]: TraceAbstraction took 4311.98ms. Allocated memory was 216.0MB in the beginning and 421.5MB in the end (delta: 205.5MB). Free memory was 89.1MB in the beginning and 216.8MB in the end (delta: -127.7MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,872 INFO L158 Benchmark]: Witness Printer took 131.60ms. Allocated memory is still 421.5MB. Free memory was 216.8MB in the beginning and 209.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:34:05,873 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 165.7MB. Free memory is still 126.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.07ms. Allocated memory is still 165.7MB. Free memory was 113.6MB in the beginning and 80.0MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.90ms. Allocated memory is still 165.7MB. Free memory was 80.0MB in the beginning and 77.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.11ms. Allocated memory is still 165.7MB. Free memory was 77.0MB in the beginning and 73.3MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 1560.76ms. Allocated memory was 165.7MB in the beginning and 216.0MB in the end (delta: 50.3MB). Free memory was 73.3MB in the beginning and 90.2MB in the end (delta: -16.9MB). Peak memory consumption was 87.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4311.98ms. Allocated memory was 216.0MB in the beginning and 421.5MB in the end (delta: 205.5MB). Free memory was 89.1MB in the beginning and 216.8MB in the end (delta: -127.7MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Witness Printer took 131.60ms. Allocated memory is still 421.5MB. Free memory was 216.8MB in the beginning and 209.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 938]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 948]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 71 locations, 10 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: 4.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 135 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 27 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 434 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 22 mSDtfsCounter, 434 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=5, InterpolantAutomatonStates: 28, 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, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 287 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:34:05,901 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