./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/mix055.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/mix055.opt.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 a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:27:32,077 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:27:32,115 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:27:32,121 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:27:32,121 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:27:32,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:27:32,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:27:32,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:27:32,144 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:27:32,144 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:27:32,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:27:32,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:27:32,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:27:32,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:27:32,145 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:27:32,145 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:27:32,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:27:32,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:27:32,146 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:27:32,146 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/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 -> a4ebc4444460a05c0fe2d26c6269a3bce4de01cd65e247714c5237856dd0f827 [2025-03-09 06:27:32,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:27:32,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:27:32,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:27:32,347 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:27:32,347 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:27:32,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-03-09 06:27:33,458 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3c935d0/e8b8ccfb235c4a4b893d32223d7e2e9d/FLAG26093cb56 [2025-03-09 06:27:33,726 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:27:33,728 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix055.opt.i [2025-03-09 06:27:33,744 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3c935d0/e8b8ccfb235c4a4b893d32223d7e2e9d/FLAG26093cb56 [2025-03-09 06:27:33,762 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a3c935d0/e8b8ccfb235c4a4b893d32223d7e2e9d [2025-03-09 06:27:33,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:27:33,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:27:33,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:27:33,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:27:33,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:27:33,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:27:33" (1/1) ... [2025-03-09 06:27:33,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63171e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:33, skipping insertion in model container [2025-03-09 06:27:33,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:27:33" (1/1) ... [2025-03-09 06:27:33,811 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:27:34,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:27:34,081 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:27:34,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:27:34,175 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:27:34,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34 WrapperNode [2025-03-09 06:27:34,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:27:34,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:27:34,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:27:34,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:27:34,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,213 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 151 [2025-03-09 06:27:34,213 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:27:34,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:27:34,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:27:34,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:27:34,222 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,226 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,244 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]. [2025-03-09 06:27:34,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,249 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,251 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:27:34,254 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:27:34,256 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:27:34,256 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:27:34,257 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (1/1) ... [2025-03-09 06:27:34,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:27:34,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:27:34,287 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) [2025-03-09 06:27:34,289 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 [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-09 06:27:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-09 06:27:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-09 06:27:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-09 06:27:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-09 06:27:34,308 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-09 06:27:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:27:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:27:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:27:34,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:27:34,310 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:27:34,410 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:27:34,412 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:27:34,675 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:27:34,676 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:27:34,856 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:27:34,856 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:27:34,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:27:34 BoogieIcfgContainer [2025-03-09 06:27:34,856 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:27:34,858 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:27:34,858 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:27:34,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:27:34,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:27:33" (1/3) ... [2025-03-09 06:27:34,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc1dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:27:34, skipping insertion in model container [2025-03-09 06:27:34,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:27:34" (2/3) ... [2025-03-09 06:27:34,864 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc1dcdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:27:34, skipping insertion in model container [2025-03-09 06:27:34,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:27:34" (3/3) ... [2025-03-09 06:27:34,865 INFO L128 eAbstractionObserver]: Analyzing ICFG mix055.opt.i [2025-03-09 06:27:34,876 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:27:34,877 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix055.opt.i that has 5 procedures, 51 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2025-03-09 06:27:34,878 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:27:34,922 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-09 06:27:34,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 116 flow [2025-03-09 06:27:34,977 INFO L124 PetriNetUnfolderBase]: 0/46 cut-off events. [2025-03-09 06:27:34,980 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:27:34,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2025-03-09 06:27:34,984 INFO L82 GeneralOperation]: Start removeDead. Operand has 63 places, 50 transitions, 116 flow [2025-03-09 06:27:34,986 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 46 transitions, 104 flow [2025-03-09 06:27:34,992 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:27:35,003 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;@3c3c0c37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:27:35,003 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2025-03-09 06:27:35,010 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:27:35,011 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2025-03-09 06:27:35,012 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:27:35,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:27:35,013 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:27:35,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-09 06:27:35,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:27:35,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1219211268, now seen corresponding path program 1 times [2025-03-09 06:27:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:27:35,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924536559] [2025-03-09 06:27:35,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:27:35,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:27:35,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:27:35,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:27:35,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:27:35,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:27:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:27:35,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:27:35,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924536559] [2025-03-09 06:27:35,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924536559] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:27:35,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:27:35,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 06:27:35,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055899411] [2025-03-09 06:27:35,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:27:35,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:27:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:27:35,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:27:35,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:27:35,251 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-03-09 06:27:35,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 46 transitions, 104 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) [2025-03-09 06:27:35,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:27:35,255 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-03-09 06:27:35,255 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:27:40,526 INFO L124 PetriNetUnfolderBase]: 70107/92353 cut-off events. [2025-03-09 06:27:40,527 INFO L125 PetriNetUnfolderBase]: For 388/388 co-relation queries the response was YES. [2025-03-09 06:27:40,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185501 conditions, 92353 events. 70107/92353 cut-off events. For 388/388 co-relation queries the response was YES. Maximal size of possible extension queue 2780. Compared 552539 event pairs, 23427 based on Foata normal form. 0/75382 useless extension candidates. Maximal degree in co-relation 185489. Up to 84897 conditions per place. [2025-03-09 06:27:41,043 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 65 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2025-03-09 06:27:41,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 309 flow [2025-03-09 06:27:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:27:41,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:27:41,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-03-09 06:27:41,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2025-03-09 06:27:41,053 INFO L175 Difference]: Start difference. First operand has 59 places, 46 transitions, 104 flow. Second operand 3 states and 102 transitions. [2025-03-09 06:27:41,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 309 flow [2025-03-09 06:27:41,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 74 transitions, 302 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:27:41,063 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 147 flow [2025-03-09 06:27:41,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-03-09 06:27:41,068 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2025-03-09 06:27:41,069 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 147 flow [2025-03-09 06:27:41,069 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) [2025-03-09 06:27:41,069 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:27:41,069 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:27:41,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:27:41,069 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-09 06:27:41,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:27:41,071 INFO L85 PathProgramCache]: Analyzing trace with hash 684147116, now seen corresponding path program 1 times [2025-03-09 06:27:41,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:27:41,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273093991] [2025-03-09 06:27:41,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:27:41,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:27:41,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:27:41,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:27:41,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:27:41,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:27:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:27:41,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:27:41,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273093991] [2025-03-09 06:27:41,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273093991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:27:41,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:27:41,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:27:41,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641471141] [2025-03-09 06:27:41,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:27:41,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:27:41,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:27:41,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:27:41,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:27:41,154 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-03-09 06:27:41,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 147 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) [2025-03-09 06:27:41,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:27:41,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-03-09 06:27:41,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:27:45,331 INFO L124 PetriNetUnfolderBase]: 56249/75355 cut-off events. [2025-03-09 06:27:45,331 INFO L125 PetriNetUnfolderBase]: For 4055/4055 co-relation queries the response was YES. [2025-03-09 06:27:45,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171320 conditions, 75355 events. 56249/75355 cut-off events. For 4055/4055 co-relation queries the response was YES. Maximal size of possible extension queue 2171. Compared 458705 event pairs, 11375 based on Foata normal form. 0/66120 useless extension candidates. Maximal degree in co-relation 171309. Up to 36850 conditions per place. [2025-03-09 06:27:45,710 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 91 selfloop transitions, 13 changer transitions 0/108 dead transitions. [2025-03-09 06:27:45,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 108 transitions, 497 flow [2025-03-09 06:27:45,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:27:45,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:27:45,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2025-03-09 06:27:45,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7 [2025-03-09 06:27:45,715 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 147 flow. Second operand 4 states and 140 transitions. [2025-03-09 06:27:45,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 108 transitions, 497 flow [2025-03-09 06:27:45,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 108 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:27:45,724 INFO L231 Difference]: Finished difference. Result has 62 places, 58 transitions, 245 flow [2025-03-09 06:27:45,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=245, PETRI_PLACES=62, PETRI_TRANSITIONS=58} [2025-03-09 06:27:45,725 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 3 predicate places. [2025-03-09 06:27:45,725 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 58 transitions, 245 flow [2025-03-09 06:27:45,725 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) [2025-03-09 06:27:45,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:27:45,725 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:27:45,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:27:45,725 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-09 06:27:45,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:27:45,726 INFO L85 PathProgramCache]: Analyzing trace with hash 684147115, now seen corresponding path program 1 times [2025-03-09 06:27:45,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:27:45,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473765069] [2025-03-09 06:27:45,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:27:45,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:27:45,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-09 06:27:45,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-09 06:27:45,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:27:45,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:27:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:27:45,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:27:45,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473765069] [2025-03-09 06:27:45,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473765069] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:27:45,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:27:45,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:27:45,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891752481] [2025-03-09 06:27:45,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:27:45,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:27:45,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:27:45,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:27:45,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:27:45,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-03-09 06:27:45,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 58 transitions, 245 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) [2025-03-09 06:27:45,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:27:45,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-03-09 06:27:45,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:27:48,906 INFO L124 PetriNetUnfolderBase]: 35051/46433 cut-off events. [2025-03-09 06:27:48,907 INFO L125 PetriNetUnfolderBase]: For 32910/32910 co-relation queries the response was YES. [2025-03-09 06:27:48,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113283 conditions, 46433 events. 35051/46433 cut-off events. For 32910/32910 co-relation queries the response was YES. Maximal size of possible extension queue 1299. Compared 261713 event pairs, 10147 based on Foata normal form. 4720/49182 useless extension candidates. Maximal degree in co-relation 113269. Up to 38976 conditions per place. [2025-03-09 06:27:49,119 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 65 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2025-03-09 06:27:49,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 74 transitions, 383 flow [2025-03-09 06:27:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:27:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:27:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-03-09 06:27:49,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.51 [2025-03-09 06:27:49,121 INFO L175 Difference]: Start difference. First operand has 62 places, 58 transitions, 245 flow. Second operand 4 states and 102 transitions. [2025-03-09 06:27:49,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 74 transitions, 383 flow [2025-03-09 06:27:50,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 74 transitions, 360 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-03-09 06:27:50,021 INFO L231 Difference]: Finished difference. Result has 58 places, 50 transitions, 176 flow [2025-03-09 06:27:50,022 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=176, PETRI_PLACES=58, PETRI_TRANSITIONS=50} [2025-03-09 06:27:50,022 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -1 predicate places. [2025-03-09 06:27:50,022 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 50 transitions, 176 flow [2025-03-09 06:27:50,022 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) [2025-03-09 06:27:50,023 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:27:50,023 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] [2025-03-09 06:27:50,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:27:50,023 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-09 06:27:50,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:27:50,023 INFO L85 PathProgramCache]: Analyzing trace with hash -49353238, now seen corresponding path program 1 times [2025-03-09 06:27:50,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:27:50,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620052631] [2025-03-09 06:27:50,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:27:50,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:27:50,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 06:27:50,048 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 06:27:50,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:27:50,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:27:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:27:50,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:27:50,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620052631] [2025-03-09 06:27:50,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620052631] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:27:50,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:27:50,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:27:50,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943671520] [2025-03-09 06:27:50,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:27:50,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:27:50,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:27:50,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:27:50,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:27:50,162 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-03-09 06:27:50,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 50 transitions, 176 flow. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:27:50,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:27:50,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-03-09 06:27:50,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:27:52,241 INFO L124 PetriNetUnfolderBase]: 30683/40529 cut-off events. [2025-03-09 06:27:52,242 INFO L125 PetriNetUnfolderBase]: For 14410/14410 co-relation queries the response was YES. [2025-03-09 06:27:52,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93692 conditions, 40529 events. 30683/40529 cut-off events. For 14410/14410 co-relation queries the response was YES. Maximal size of possible extension queue 1240. Compared 224230 event pairs, 5631 based on Foata normal form. 0/40262 useless extension candidates. Maximal degree in co-relation 93679. Up to 15488 conditions per place. [2025-03-09 06:27:52,441 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 107 selfloop transitions, 13 changer transitions 4/128 dead transitions. [2025-03-09 06:27:52,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 128 transitions, 608 flow [2025-03-09 06:27:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:27:52,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:27:52,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2025-03-09 06:27:52,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.672 [2025-03-09 06:27:52,443 INFO L175 Difference]: Start difference. First operand has 58 places, 50 transitions, 176 flow. Second operand 5 states and 168 transitions. [2025-03-09 06:27:52,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 128 transitions, 608 flow [2025-03-09 06:27:52,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 128 transitions, 602 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:27:52,463 INFO L231 Difference]: Finished difference. Result has 61 places, 50 transitions, 212 flow [2025-03-09 06:27:52,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=212, PETRI_PLACES=61, PETRI_TRANSITIONS=50} [2025-03-09 06:27:52,463 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, 2 predicate places. [2025-03-09 06:27:52,464 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 212 flow [2025-03-09 06:27:52,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:27:52,464 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:27:52,464 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] [2025-03-09 06:27:52,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:27:52,464 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-03-09 06:27:52,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:27:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -917247917, now seen corresponding path program 1 times [2025-03-09 06:27:52,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:27:52,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646694742] [2025-03-09 06:27:52,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:27:52,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:27:52,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 06:27:52,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 06:27:52,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:27:52,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:27:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:27:52,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:27:52,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646694742] [2025-03-09 06:27:52,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646694742] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:27:52,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:27:52,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:27:52,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213855754] [2025-03-09 06:27:52,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:27:52,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:27:52,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:27:52,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:27:52,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:27:52,636 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 50 [2025-03-09 06:27:52,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 212 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-03-09 06:27:52,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:27:52,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 50 [2025-03-09 06:27:52,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:27:55,505 INFO L124 PetriNetUnfolderBase]: 29723/39233 cut-off events. [2025-03-09 06:27:55,505 INFO L125 PetriNetUnfolderBase]: For 25174/25174 co-relation queries the response was YES. [2025-03-09 06:27:55,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97639 conditions, 39233 events. 29723/39233 cut-off events. For 25174/25174 co-relation queries the response was YES. Maximal size of possible extension queue 1240. Compared 217883 event pairs, 5463 based on Foata normal form. 224/39414 useless extension candidates. Maximal degree in co-relation 97625. Up to 15488 conditions per place. [2025-03-09 06:27:55,606 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2025-03-09 06:27:55,606 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 120 transitions, 572 flow [2025-03-09 06:27:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:27:55,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:27:55,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 168 transitions. [2025-03-09 06:27:55,608 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.56 [2025-03-09 06:27:55,608 INFO L175 Difference]: Start difference. First operand has 61 places, 50 transitions, 212 flow. Second operand 6 states and 168 transitions. [2025-03-09 06:27:55,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 120 transitions, 572 flow [2025-03-09 06:27:56,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 120 transitions, 517 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-03-09 06:27:56,392 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2025-03-09 06:27:56,392 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=125, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2025-03-09 06:27:56,392 INFO L279 CegarLoopForPetriNet]: 59 programPoint places, -3 predicate places. [2025-03-09 06:27:56,392 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2025-03-09 06:27:56,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2025-03-09 06:27:56,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2025-03-09 06:27:56,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2025-03-09 06:27:56,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2025-03-09 06:27:56,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:27:56,399 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-09 06:27:56,404 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:27:56,405 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:27:56,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:27:56 BasicIcfg [2025-03-09 06:27:56,408 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:27:56,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:27:56,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:27:56,409 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:27:56,409 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:27:34" (3/4) ... [2025-03-09 06:27:56,410 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:27:56,412 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-03-09 06:27:56,412 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-03-09 06:27:56,412 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-03-09 06:27:56,412 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-03-09 06:27:56,415 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2025-03-09 06:27:56,415 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-09 06:27:56,416 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-03-09 06:27:56,416 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-03-09 06:27:56,462 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:27:56,463 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:27:56,463 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:27:56,463 INFO L158 Benchmark]: Toolchain (without parser) took 22697.91ms. Allocated memory was 142.6MB in the beginning and 8.0GB in the end (delta: 7.9GB). Free memory was 113.1MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2025-03-09 06:27:56,463 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.77ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 90.1MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.45ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 87.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: Boogie Preprocessor took 37.33ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 84.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: IcfgBuilder took 602.21ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 96.3MB in the end (delta: -12.1MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: TraceAbstraction took 21550.09ms. Allocated memory was 142.6MB in the beginning and 8.0GB in the end (delta: 7.9GB). Free memory was 95.5MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. [2025-03-09 06:27:56,464 INFO L158 Benchmark]: Witness Printer took 53.96ms. Allocated memory is still 8.0GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:27:56,466 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.77ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 90.1MB in the end (delta: 22.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.45ms. Allocated memory is still 142.6MB. Free memory was 90.1MB in the beginning and 87.1MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.33ms. Allocated memory is still 142.6MB. Free memory was 87.1MB in the beginning and 84.2MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 602.21ms. Allocated memory is still 142.6MB. Free memory was 84.2MB in the beginning and 96.3MB in the end (delta: -12.1MB). Peak memory consumption was 56.7MB. Max. memory is 16.1GB. * TraceAbstraction took 21550.09ms. Allocated memory was 142.6MB in the beginning and 8.0GB in the end (delta: 7.9GB). Free memory was 95.5MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 3.2GB. Max. memory is 16.1GB. * Witness Printer took 53.96ms. Allocated memory is still 8.0GB. Free memory was 6.2GB in the beginning and 6.2GB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 756]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 771]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 791]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 821]: 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, 91 locations, 86 edges, 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: 21.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 311 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 590 IncrementalHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 0 mSDtfsCounter, 590 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=245occurred in iteration=2, 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, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 237 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! [2025-03-09 06:27:56,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE