./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix000.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/mix000.oepc.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 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:06:25,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:06:25,709 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:06:25,715 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:06:25,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:06:25,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:06:25,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:06:25,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:06:25,747 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:06:25,751 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:06:25,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:06:25,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:06:25,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:06:25,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:06:25,753 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:06:25,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:06:25,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:06:25,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:06:25,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:06:25,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:06:25,756 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:06:25,756 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:06:25,757 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:06:25,757 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:06:25,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:06:25,757 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:06:25,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:06:25,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:06:25,758 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:06:25,758 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:06:25,759 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:06:25,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:06:25,759 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:06:25,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:06:25,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:06:25,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:06:25,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:06:25,761 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:06:25,762 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:06:25,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:06:25,762 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:06:25,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:06:25,763 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:06:25,763 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:06:25,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62286332e049ab35f6bf4022df54bae198ba0ceaf820c98713e2f1f442f473b5 [2024-11-10 22:06:26,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:06:26,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:06:26,039 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:06:26,040 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:06:26,041 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:06:26,042 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-10 22:06:27,562 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:06:27,836 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:06:27,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix000.oepc.i [2024-11-10 22:06:27,853 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/626791212/f56d51ecb55e490abf6af7d6c19dd44d/FLAG5056ef586 [2024-11-10 22:06:27,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/626791212/f56d51ecb55e490abf6af7d6c19dd44d [2024-11-10 22:06:27,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:06:27,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:06:27,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:06:27,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:06:27,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:06:27,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:06:27" (1/1) ... [2024-11-10 22:06:27,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d253969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:27, skipping insertion in model container [2024-11-10 22:06:27,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:06:27" (1/1) ... [2024-11-10 22:06:27,921 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:06:28,363 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:06:28,381 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:06:28,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:06:28,498 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:06:28,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28 WrapperNode [2024-11-10 22:06:28,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:06:28,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:06:28,500 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:06:28,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:06:28,507 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,526 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,556 INFO L138 Inliner]: procedures = 174, calls = 38, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 134 [2024-11-10 22:06:28,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:06:28,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:06:28,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:06:28,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:06:28,574 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,612 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]. [2024-11-10 22:06:28,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,625 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,632 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,637 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:06:28,643 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:06:28,643 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:06:28,644 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:06:28,645 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (1/1) ... [2024-11-10 22:06:28,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:06:28,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:06:28,694 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) [2024-11-10 22:06:28,697 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 [2024-11-10 22:06:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:06:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:06:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 22:06:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 22:06:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 22:06:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 22:06:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:06:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:06:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:06:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:06:28,749 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:06:28,907 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:06:28,910 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:06:29,249 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:06:29,250 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:06:29,489 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:06:29,489 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:06:29,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:06:29 BoogieIcfgContainer [2024-11-10 22:06:29,490 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:06:29,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:06:29,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:06:29,495 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:06:29,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:06:27" (1/3) ... [2024-11-10 22:06:29,496 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190847ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:06:29, skipping insertion in model container [2024-11-10 22:06:29,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:06:28" (2/3) ... [2024-11-10 22:06:29,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@190847ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:06:29, skipping insertion in model container [2024-11-10 22:06:29,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:06:29" (3/3) ... [2024-11-10 22:06:29,498 INFO L112 eAbstractionObserver]: Analyzing ICFG mix000.oepc.i [2024-11-10 22:06:29,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:06:29,515 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-10 22:06:29,515 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:06:29,600 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:06:29,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 68 flow [2024-11-10 22:06:29,694 INFO L124 PetriNetUnfolderBase]: 0/28 cut-off events. [2024-11-10 22:06:29,694 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:06:29,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 28 events. 0/28 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-10 22:06:29,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 30 transitions, 68 flow [2024-11-10 22:06:29,706 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 35 places, 28 transitions, 62 flow [2024-11-10 22:06:29,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:06:29,723 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;@8aaf5ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:06:29,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-10 22:06:29,735 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:06:29,735 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-10 22:06:29,736 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:06:29,736 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:29,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:29,737 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:06:29,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash 399947904, now seen corresponding path program 1 times [2024-11-10 22:06:29,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:29,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270682957] [2024-11-10 22:06:29,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:29,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:30,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:30,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:30,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270682957] [2024-11-10 22:06:30,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270682957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:30,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:30,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:06:30,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135128087] [2024-11-10 22:06:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:30,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:06:30,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:30,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:06:30,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:06:30,265 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 30 [2024-11-10 22:06:30,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 62 flow. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-10 22:06:30,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:30,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 30 [2024-11-10 22:06:30,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:30,631 INFO L124 PetriNetUnfolderBase]: 628/1045 cut-off events. [2024-11-10 22:06:30,631 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-10 22:06:30,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2107 conditions, 1045 events. 628/1045 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4550 event pairs, 306 based on Foata normal form. 0/986 useless extension candidates. Maximal degree in co-relation 2097. Up to 593 conditions per place. [2024-11-10 22:06:30,646 INFO L140 encePairwiseOnDemand]: 23/30 looper letters, 39 selfloop transitions, 3 changer transitions 2/46 dead transitions. [2024-11-10 22:06:30,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 46 transitions, 189 flow [2024-11-10 22:06:30,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:06:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:06:30,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 60 transitions. [2024-11-10 22:06:30,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-10 22:06:30,661 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 62 flow. Second operand 3 states and 60 transitions. [2024-11-10 22:06:30,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 46 transitions, 189 flow [2024-11-10 22:06:30,664 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:06:30,668 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 77 flow [2024-11-10 22:06:30,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=77, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2024-11-10 22:06:30,675 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-10 22:06:30,676 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 77 flow [2024-11-10 22:06:30,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-11-10 22:06:30,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:30,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:30,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:06:30,677 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:06:30,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:30,677 INFO L85 PathProgramCache]: Analyzing trace with hash -542871781, now seen corresponding path program 1 times [2024-11-10 22:06:30,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:30,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022984966] [2024-11-10 22:06:30,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:30,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:30,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:30,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022984966] [2024-11-10 22:06:30,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022984966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:30,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74086645] [2024-11-10 22:06:30,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:30,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:06:30,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:30,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:06:30,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:06:30,951 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 30 [2024-11-10 22:06:30,952 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-10 22:06:30,952 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:30,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 30 [2024-11-10 22:06:30,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:31,261 INFO L124 PetriNetUnfolderBase]: 538/899 cut-off events. [2024-11-10 22:06:31,262 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-10 22:06:31,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1988 conditions, 899 events. 538/899 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3880 event pairs, 278 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1977. Up to 450 conditions per place. [2024-11-10 22:06:31,273 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 37 selfloop transitions, 3 changer transitions 0/42 dead transitions. [2024-11-10 22:06:31,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 42 transitions, 183 flow [2024-11-10 22:06:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:06:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:06:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2024-11-10 22:06:31,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.48333333333333334 [2024-11-10 22:06:31,278 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 77 flow. Second operand 4 states and 58 transitions. [2024-11-10 22:06:31,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 42 transitions, 183 flow [2024-11-10 22:06:31,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 180 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:06:31,282 INFO L231 Difference]: Finished difference. Result has 36 places, 26 transitions, 72 flow [2024-11-10 22:06:31,283 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=72, PETRI_PLACES=36, PETRI_TRANSITIONS=26} [2024-11-10 22:06:31,284 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, 1 predicate places. [2024-11-10 22:06:31,284 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 26 transitions, 72 flow [2024-11-10 22:06:31,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-10 22:06:31,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:06:31,284 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:06:31,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:06:31,285 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:06:31,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:06:31,287 INFO L85 PathProgramCache]: Analyzing trace with hash -542871780, now seen corresponding path program 1 times [2024-11-10 22:06:31,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:06:31,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049551824] [2024-11-10 22:06:31,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:06:31,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:06:31,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:06:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:06:31,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:06:31,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049551824] [2024-11-10 22:06:31,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049551824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:06:31,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:06:31,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:06:31,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281073010] [2024-11-10 22:06:31,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:06:31,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:06:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:06:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:06:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:06:31,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 30 [2024-11-10 22:06:31,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 26 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-10 22:06:31,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:06:31,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 30 [2024-11-10 22:06:31,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:06:31,659 INFO L124 PetriNetUnfolderBase]: 500/833 cut-off events. [2024-11-10 22:06:31,659 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-10 22:06:31,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 833 events. 500/833 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3575 event pairs, 264 based on Foata normal form. 28/858 useless extension candidates. Maximal degree in co-relation 1817. Up to 450 conditions per place. [2024-11-10 22:06:31,662 INFO L140 encePairwiseOnDemand]: 25/30 looper letters, 0 selfloop transitions, 0 changer transitions 40/40 dead transitions. [2024-11-10 22:06:31,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 40 transitions, 174 flow [2024-11-10 22:06:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:06:31,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:06:31,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2024-11-10 22:06:31,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4666666666666667 [2024-11-10 22:06:31,664 INFO L175 Difference]: Start difference. First operand has 36 places, 26 transitions, 72 flow. Second operand 4 states and 56 transitions. [2024-11-10 22:06:31,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 40 transitions, 174 flow [2024-11-10 22:06:31,666 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 40 transitions, 167 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:06:31,666 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-11-10 22:06:31,666 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=30, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-11-10 22:06:31,667 INFO L277 CegarLoopForPetriNet]: 35 programPoint places, -1 predicate places. [2024-11-10 22:06:31,667 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-11-10 22:06:31,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-10 22:06:31,670 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-10 22:06:31,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-10 22:06:31,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-10 22:06:31,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-10 22:06:31,671 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-10 22:06:31,672 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-10 22:06:31,672 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-10 22:06:31,672 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-10 22:06:31,672 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-10 22:06:31,673 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-10 22:06:31,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:06:31,674 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-10 22:06:31,681 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:06:31,681 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:06:31,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:06:31 BasicIcfg [2024-11-10 22:06:31,687 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:06:31,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:06:31,688 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:06:31,688 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:06:31,688 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:06:29" (3/4) ... [2024-11-10 22:06:31,690 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:06:31,692 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-10 22:06:31,693 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-10 22:06:31,697 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-11-10 22:06:31,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-10 22:06:31,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-10 22:06:31,698 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-10 22:06:31,798 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:06:31,799 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:06:31,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:06:31,800 INFO L158 Benchmark]: Toolchain (without parser) took 3929.70ms. Allocated memory was 205.5MB in the beginning and 251.7MB in the end (delta: 46.1MB). Free memory was 172.5MB in the beginning and 213.8MB in the end (delta: -41.3MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,801 INFO L158 Benchmark]: CDTParser took 1.02ms. Allocated memory is still 130.0MB. Free memory was 91.5MB in the beginning and 91.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:06:31,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 627.83ms. Allocated memory is still 205.5MB. Free memory was 171.5MB in the beginning and 145.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.63ms. Allocated memory is still 205.5MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,802 INFO L158 Benchmark]: Boogie Preprocessor took 80.09ms. Allocated memory is still 205.5MB. Free memory was 142.1MB in the beginning and 139.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,803 INFO L158 Benchmark]: IcfgBuilder took 846.92ms. Allocated memory is still 205.5MB. Free memory was 139.0MB in the beginning and 74.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,803 INFO L158 Benchmark]: TraceAbstraction took 2195.34ms. Allocated memory was 205.5MB in the beginning and 251.7MB in the end (delta: 46.1MB). Free memory was 74.0MB in the beginning and 72.7MB in the end (delta: 1.3MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,803 INFO L158 Benchmark]: Witness Printer took 111.23ms. Allocated memory is still 251.7MB. Free memory was 72.7MB in the beginning and 213.8MB in the end (delta: -141.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:06:31,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.02ms. Allocated memory is still 130.0MB. Free memory was 91.5MB in the beginning and 91.4MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 627.83ms. Allocated memory is still 205.5MB. Free memory was 171.5MB in the beginning and 145.2MB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.63ms. Allocated memory is still 205.5MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.09ms. Allocated memory is still 205.5MB. Free memory was 142.1MB in the beginning and 139.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * IcfgBuilder took 846.92ms. Allocated memory is still 205.5MB. Free memory was 139.0MB in the beginning and 74.0MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2195.34ms. Allocated memory was 205.5MB in the beginning and 251.7MB in the end (delta: 46.1MB). Free memory was 74.0MB in the beginning and 72.7MB in the end (delta: 1.3MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 111.23ms. Allocated memory is still 251.7MB. Free memory was 72.7MB in the beginning and 213.8MB in the end (delta: -141.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 780]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 816]: 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, 53 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: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 68 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 68 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=1, InterpolantAutomatonStates: 11, 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, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 111 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2024-11-10 22:06:31,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE