./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix007.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix007.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 13:56:11,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 13:56:11,766 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-08 13:56:11,772 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 13:56:11,772 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 13:56:11,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 13:56:11,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 13:56:11,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 13:56:11,795 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 13:56:11,795 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 13:56:11,796 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 13:56:11,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 13:56:11,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 13:56:11,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 13:56:11,797 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 13:56:11,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 13:56:11,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 13:56:11,797 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 13:56:11,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 13:56:11,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 13:56:11,798 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 13:56:11,799 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:56:11,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 13:56:11,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 13:56:11,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 13:56:11,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 13:56:11,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 13:56:11,800 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 98fb631b7747d0724c093b074b80cf02851c21b4b9e1af2c5f1e3d032d6b592f [2025-02-08 13:56:11,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 13:56:12,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 13:56:12,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 13:56:12,005 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 13:56:12,005 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 13:56:12,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix007.opt.i [2025-02-08 13:56:13,109 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/139da05d8/7b7401aed3394b92b5a30409dd2455c8/FLAG86bf581da [2025-02-08 13:56:13,400 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 13:56:13,400 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix007.opt.i [2025-02-08 13:56:13,409 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/139da05d8/7b7401aed3394b92b5a30409dd2455c8/FLAG86bf581da [2025-02-08 13:56:13,419 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/139da05d8/7b7401aed3394b92b5a30409dd2455c8 [2025-02-08 13:56:13,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 13:56:13,421 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 13:56:13,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 13:56:13,422 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 13:56:13,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 13:56:13,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c9112d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13, skipping insertion in model container [2025-02-08 13:56:13,426 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,445 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 13:56:13,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:56:13,732 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 13:56:13,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 13:56:13,818 INFO L204 MainTranslator]: Completed translation [2025-02-08 13:56:13,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13 WrapperNode [2025-02-08 13:56:13,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 13:56:13,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 13:56:13,820 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 13:56:13,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 13:56:13,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,862 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 157 [2025-02-08 13:56:13,867 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 13:56:13,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 13:56:13,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 13:56:13,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 13:56:13,874 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,901 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]. [2025-02-08 13:56:13,901 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,901 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,913 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,915 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 13:56:13,921 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 13:56:13,922 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 13:56:13,922 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 13:56:13,923 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (1/1) ... [2025-02-08 13:56:13,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 13:56:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 13:56:13,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 13:56:13,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 13:56:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 13:56:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 13:56:13,971 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 13:56:13,971 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 13:56:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 13:56:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 13:56:13,972 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 13:56:13,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 13:56:13,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 13:56:13,973 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 13:56:14,086 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 13:56:14,087 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 13:56:14,390 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 13:56:14,391 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 13:56:14,624 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 13:56:14,625 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 13:56:14,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:14 BoogieIcfgContainer [2025-02-08 13:56:14,625 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 13:56:14,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 13:56:14,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 13:56:14,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 13:56:14,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:56:13" (1/3) ... [2025-02-08 13:56:14,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ff6cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:14, skipping insertion in model container [2025-02-08 13:56:14,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:56:13" (2/3) ... [2025-02-08 13:56:14,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76ff6cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:56:14, skipping insertion in model container [2025-02-08 13:56:14,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:14" (3/3) ... [2025-02-08 13:56:14,639 INFO L128 eAbstractionObserver]: Analyzing ICFG mix007.opt.i [2025-02-08 13:56:14,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 13:56:14,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix007.opt.i that has 5 procedures, 53 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-02-08 13:56:14,654 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 13:56:14,707 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 13:56:14,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 52 transitions, 120 flow [2025-02-08 13:56:14,771 INFO L124 PetriNetUnfolderBase]: 0/48 cut-off events. [2025-02-08 13:56:14,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:56:14,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 48 events. 0/48 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 128 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-02-08 13:56:14,778 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 52 transitions, 120 flow [2025-02-08 13:56:14,780 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 48 transitions, 108 flow [2025-02-08 13:56:14,789 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 13:56:14,797 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;@192aa660, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 13:56:14,798 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-02-08 13:56:14,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 13:56:14,804 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-02-08 13:56:14,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 13:56:14,805 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:56:14,805 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:56:14,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:56:14,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:56:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash -552199505, now seen corresponding path program 1 times [2025-02-08 13:56:14,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:56:14,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839555591] [2025-02-08 13:56:14,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:56:14,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:56:14,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 13:56:14,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 13:56:14,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:56:14,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:56:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:56:14,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:56:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839555591] [2025-02-08 13:56:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839555591] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:56:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:56:14,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 13:56:14,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593464713] [2025-02-08 13:56:14,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:56:14,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 13:56:14,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:56:15,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 13:56:15,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 13:56:15,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-02-08 13:56:15,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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) [2025-02-08 13:56:15,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:56:15,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-02-08 13:56:15,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:56:21,451 INFO L124 PetriNetUnfolderBase]: 88167/115849 cut-off events. [2025-02-08 13:56:21,452 INFO L125 PetriNetUnfolderBase]: For 432/432 co-relation queries the response was YES. [2025-02-08 13:56:21,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232581 conditions, 115849 events. 88167/115849 cut-off events. For 432/432 co-relation queries the response was YES. Maximal size of possible extension queue 3176. Compared 701586 event pairs, 28905 based on Foata normal form. 0/96472 useless extension candidates. Maximal degree in co-relation 232569. Up to 104113 conditions per place. [2025-02-08 13:56:22,073 INFO L140 encePairwiseOnDemand]: 39/52 looper letters, 69 selfloop transitions, 5 changer transitions 0/78 dead transitions. [2025-02-08 13:56:22,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 78 transitions, 325 flow [2025-02-08 13:56:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 13:56:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 13:56:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2025-02-08 13:56:22,081 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6794871794871795 [2025-02-08 13:56:22,082 INFO L175 Difference]: Start difference. First operand has 61 places, 48 transitions, 108 flow. Second operand 3 states and 106 transitions. [2025-02-08 13:56:22,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 78 transitions, 325 flow [2025-02-08 13:56:22,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 78 transitions, 318 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 13:56:22,090 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 151 flow [2025-02-08 13:56:22,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=151, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2025-02-08 13:56:22,094 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2025-02-08 13:56:22,094 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 151 flow [2025-02-08 13:56:22,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 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) [2025-02-08 13:56:22,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:56:22,094 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:56:22,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 13:56:22,095 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:56:22,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:56:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1929704548, now seen corresponding path program 1 times [2025-02-08 13:56:22,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:56:22,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899539862] [2025-02-08 13:56:22,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:56:22,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:56:22,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:56:22,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:56:22,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:56:22,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:56:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:56:22,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:56:22,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899539862] [2025-02-08 13:56:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899539862] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:56:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:56:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:56:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939921879] [2025-02-08 13:56:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:56:22,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:56:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:56:22,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:56:22,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:56:22,188 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-02-08 13:56:22,188 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 151 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2025-02-08 13:56:22,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:56:22,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-02-08 13:56:22,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:56:26,600 INFO L124 PetriNetUnfolderBase]: 61165/80387 cut-off events. [2025-02-08 13:56:26,600 INFO L125 PetriNetUnfolderBase]: For 4947/4947 co-relation queries the response was YES. [2025-02-08 13:56:26,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181384 conditions, 80387 events. 61165/80387 cut-off events. For 4947/4947 co-relation queries the response was YES. Maximal size of possible extension queue 2221. Compared 471333 event pairs, 18595 based on Foata normal form. 0/73062 useless extension candidates. Maximal degree in co-relation 181373. Up to 68650 conditions per place. [2025-02-08 13:56:27,231 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 65 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2025-02-08 13:56:27,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 74 transitions, 333 flow [2025-02-08 13:56:27,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:56:27,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:56:27,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-08 13:56:27,235 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5096153846153846 [2025-02-08 13:56:27,235 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 151 flow. Second operand 4 states and 106 transitions. [2025-02-08 13:56:27,235 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 74 transitions, 333 flow [2025-02-08 13:56:27,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 328 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 13:56:27,248 INFO L231 Difference]: Finished difference. Result has 58 places, 48 transitions, 140 flow [2025-02-08 13:56:27,249 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=140, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2025-02-08 13:56:27,249 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2025-02-08 13:56:27,249 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 140 flow [2025-02-08 13:56:27,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2025-02-08 13:56:27,250 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:56:27,250 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:56:27,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 13:56:27,250 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:56:27,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:56:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1929704547, now seen corresponding path program 1 times [2025-02-08 13:56:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:56:27,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825095935] [2025-02-08 13:56:27,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:56:27,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:56:27,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-08 13:56:27,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-08 13:56:27,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:56:27,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:56:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:56:27,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:56:27,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825095935] [2025-02-08 13:56:27,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825095935] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:56:27,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:56:27,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 13:56:27,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483770334] [2025-02-08 13:56:27,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:56:27,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 13:56:27,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:56:27,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 13:56:27,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-08 13:56:27,332 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-02-08 13:56:27,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2025-02-08 13:56:27,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:56:27,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-02-08 13:56:27,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:56:30,606 INFO L124 PetriNetUnfolderBase]: 46763/61661 cut-off events. [2025-02-08 13:56:30,607 INFO L125 PetriNetUnfolderBase]: For 9424/9424 co-relation queries the response was YES. [2025-02-08 13:56:30,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136901 conditions, 61661 events. 46763/61661 cut-off events. For 9424/9424 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 352485 event pairs, 10739 based on Foata normal form. 0/59540 useless extension candidates. Maximal degree in co-relation 136889. Up to 27945 conditions per place. [2025-02-08 13:56:30,896 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 93 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2025-02-08 13:56:30,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 106 transitions, 478 flow [2025-02-08 13:56:30,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 13:56:30,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 13:56:30,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 138 transitions. [2025-02-08 13:56:30,903 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6634615384615384 [2025-02-08 13:56:30,903 INFO L175 Difference]: Start difference. First operand has 58 places, 48 transitions, 140 flow. Second operand 4 states and 138 transitions. [2025-02-08 13:56:30,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 106 transitions, 478 flow [2025-02-08 13:56:30,913 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 106 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 13:56:30,917 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 192 flow [2025-02-08 13:56:30,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=192, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2025-02-08 13:56:30,917 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -1 predicate places. [2025-02-08 13:56:30,918 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 192 flow [2025-02-08 13:56:30,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 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) [2025-02-08 13:56:30,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:56:30,918 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:56:30,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 13:56:30,919 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:56:30,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:56:30,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1007126171, now seen corresponding path program 1 times [2025-02-08 13:56:30,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:56:30,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851514641] [2025-02-08 13:56:30,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:56:30,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:56:30,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 13:56:30,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 13:56:30,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:56:30,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:56:31,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:56:31,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:56:31,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851514641] [2025-02-08 13:56:31,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851514641] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:56:31,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:56:31,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 13:56:31,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215277245] [2025-02-08 13:56:31,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:56:31,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 13:56:31,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:56:31,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 13:56:31,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-02-08 13:56:31,094 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-02-08 13:56:31,094 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2025-02-08 13:56:31,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:56:31,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-02-08 13:56:31,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:56:34,040 INFO L124 PetriNetUnfolderBase]: 41915/55109 cut-off events. [2025-02-08 13:56:34,041 INFO L125 PetriNetUnfolderBase]: For 22056/22056 co-relation queries the response was YES. [2025-02-08 13:56:34,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133200 conditions, 55109 events. 41915/55109 cut-off events. For 22056/22056 co-relation queries the response was YES. Maximal size of possible extension queue 1570. Compared 311390 event pairs, 8871 based on Foata normal form. 0/54860 useless extension candidates. Maximal degree in co-relation 133187. Up to 21980 conditions per place. [2025-02-08 13:56:34,261 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 115 selfloop transitions, 13 changer transitions 4/136 dead transitions. [2025-02-08 13:56:34,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 652 flow [2025-02-08 13:56:34,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 13:56:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 13:56:34,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2025-02-08 13:56:34,262 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.676923076923077 [2025-02-08 13:56:34,262 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 192 flow. Second operand 5 states and 176 transitions. [2025-02-08 13:56:34,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 652 flow [2025-02-08 13:56:34,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 136 transitions, 634 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-08 13:56:34,284 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 216 flow [2025-02-08 13:56:34,285 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=216, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2025-02-08 13:56:34,285 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2025-02-08 13:56:34,285 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 216 flow [2025-02-08 13:56:34,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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) [2025-02-08 13:56:34,285 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 13:56:34,285 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 13:56:34,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 13:56:34,286 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-02-08 13:56:34,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 13:56:34,286 INFO L85 PathProgramCache]: Analyzing trace with hash -134486578, now seen corresponding path program 1 times [2025-02-08 13:56:34,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 13:56:34,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182328144] [2025-02-08 13:56:34,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 13:56:34,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 13:56:34,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-08 13:56:34,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-08 13:56:34,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 13:56:34,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 13:56:34,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 13:56:34,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 13:56:34,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182328144] [2025-02-08 13:56:34,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182328144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 13:56:34,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 13:56:34,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 13:56:34,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688935865] [2025-02-08 13:56:34,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 13:56:34,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 13:56:34,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 13:56:34,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 13:56:34,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-08 13:56:34,425 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 52 [2025-02-08 13:56:34,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2025-02-08 13:56:34,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 13:56:34,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 52 [2025-02-08 13:56:34,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 13:56:37,617 INFO L124 PetriNetUnfolderBase]: 40955/53813 cut-off events. [2025-02-08 13:56:37,617 INFO L125 PetriNetUnfolderBase]: For 32464/32464 co-relation queries the response was YES. [2025-02-08 13:56:37,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131935 conditions, 53813 events. 40955/53813 cut-off events. For 32464/32464 co-relation queries the response was YES. Maximal size of possible extension queue 1570. Compared 304957 event pairs, 8703 based on Foata normal form. 224/54012 useless extension candidates. Maximal degree in co-relation 131921. Up to 21980 conditions per place. [2025-02-08 13:56:37,747 INFO L140 encePairwiseOnDemand]: 43/52 looper letters, 0 selfloop transitions, 0 changer transitions 128/128 dead transitions. [2025-02-08 13:56:37,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 128 transitions, 604 flow [2025-02-08 13:56:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 13:56:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 13:56:37,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 176 transitions. [2025-02-08 13:56:37,749 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5641025641025641 [2025-02-08 13:56:37,749 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 216 flow. Second operand 6 states and 176 transitions. [2025-02-08 13:56:37,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 128 transitions, 604 flow [2025-02-08 13:56:39,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 128 transitions, 549 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 13:56:39,197 INFO L231 Difference]: Finished difference. Result has 58 places, 0 transitions, 0 flow [2025-02-08 13:56:39,197 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=58, PETRI_TRANSITIONS=0} [2025-02-08 13:56:39,197 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, -3 predicate places. [2025-02-08 13:56:39,198 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 0 transitions, 0 flow [2025-02-08 13:56:39,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-02-08 13:56:39,200 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-02-08 13:56:39,201 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-02-08 13:56:39,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 13:56:39,201 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 13:56:39,205 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 13:56:39,205 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 13:56:39,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:56:39 BasicIcfg [2025-02-08 13:56:39,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 13:56:39,208 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 13:56:39,208 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 13:56:39,209 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 13:56:39,209 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:56:14" (3/4) ... [2025-02-08 13:56:39,210 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 13:56:39,211 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 13:56:39,212 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 13:56:39,212 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 13:56:39,212 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-08 13:56:39,214 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2025-02-08 13:56:39,214 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 13:56:39,214 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-08 13:56:39,215 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 13:56:39,262 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 13:56:39,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 13:56:39,263 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 13:56:39,263 INFO L158 Benchmark]: Toolchain (without parser) took 25842.36ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 103.3MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 2.5GB. Max. memory is 16.1GB. [2025-02-08 13:56:39,264 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:56:39,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 397.22ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 79.5MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 13:56:39,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.92ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 77.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:56:39,264 INFO L158 Benchmark]: Boogie Preprocessor took 53.04ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 72.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 13:56:39,264 INFO L158 Benchmark]: IcfgBuilder took 703.63ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 74.1MB in the end (delta: -1.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2025-02-08 13:56:39,265 INFO L158 Benchmark]: TraceAbstraction took 24581.43ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 74.1MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2025-02-08 13:56:39,265 INFO L158 Benchmark]: Witness Printer took 54.54ms. Allocated memory is still 10.5GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 13:56:39,266 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 226.5MB. Free memory is still 142.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 397.22ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 79.5MB in the end (delta: 23.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.92ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 77.0MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.04ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 72.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 703.63ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 74.1MB in the end (delta: -1.2MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 24581.43ms. Allocated memory was 142.6MB in the beginning and 10.5GB in the end (delta: 10.4GB). Free memory was 74.1MB in the beginning and 8.0GB in the end (delta: -7.9GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Witness Printer took 54.54ms. Allocated memory is still 10.5GB. Free memory was 8.0GB in the beginning and 8.0GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 762]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 777]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 808]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: 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 9 procedures, 95 locations, 20 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: 24.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 319 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 616 IncrementalHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 0 mSDtfsCounter, 616 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=216occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 246 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 13:56:39,278 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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