./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.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-deagle/arithmetic_prog_bad.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 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:44:54,765 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:44:54,825 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:44:54,831 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:44:54,831 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:44:54,851 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:44:54,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:44:54,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:44:54,854 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:44:54,854 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:44:54,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:44:54,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:44:54,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:44:54,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:44:54,855 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:44:54,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:44:54,856 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:44:54,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:44:54,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:44:54,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:44:54,858 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:44:54,858 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 -> 051706a1eb405a384d7cf371ab2d9b9605b94715fa3ad16d6c2eb8e3fbb8fc38 [2025-03-09 06:44:55,103 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:44:55,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:44:55,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:44:55,113 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:44:55,114 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:44:55,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2025-03-09 06:44:56,244 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0076f40/25effbd1bb9b4e839ebf3df014281300/FLAG596170697 [2025-03-09 06:44:56,583 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:44:56,583 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-deagle/arithmetic_prog_bad.i [2025-03-09 06:44:56,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0076f40/25effbd1bb9b4e839ebf3df014281300/FLAG596170697 [2025-03-09 06:44:56,826 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b0076f40/25effbd1bb9b4e839ebf3df014281300 [2025-03-09 06:44:56,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:44:56,828 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:44:56,829 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:44:56,829 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:44:56,832 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:44:56,833 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:44:56" (1/1) ... [2025-03-09 06:44:56,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dae9aaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:56, skipping insertion in model container [2025-03-09 06:44:56,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:44:56" (1/1) ... [2025-03-09 06:44:56,856 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:44:57,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:44:57,103 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:44:57,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:44:57,178 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:44:57,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57 WrapperNode [2025-03-09 06:44:57,179 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:44:57,180 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:44:57,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:44:57,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:44:57,186 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,223 INFO L138 Inliner]: procedures = 243, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 262 [2025-03-09 06:44:57,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:44:57,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:44:57,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:44:57,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:44:57,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,235 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,249 INFO L175 MemorySlicer]: Split 11 memory accesses to 3 slices as follows [2, 1, 8]. 73 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 1, 8]. The 0 writes are split as follows [0, 0, 0]. [2025-03-09 06:44:57,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,261 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:44:57,270 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:44:57,270 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:44:57,270 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:44:57,275 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (1/1) ... [2025-03-09 06:44:57,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:44:57,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:44:57,309 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 06:44:57,315 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 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:44:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:44:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:44:57,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:44:57,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:44:57,330 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 06:44:57,456 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:44:57,458 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:44:57,793 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:44:57,794 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:44:58,345 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:44:58,346 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:44:58,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:44:58 BoogieIcfgContainer [2025-03-09 06:44:58,346 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:44:58,348 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:44:58,348 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:44:58,351 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:44:58,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:44:56" (1/3) ... [2025-03-09 06:44:58,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330db161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:44:58, skipping insertion in model container [2025-03-09 06:44:58,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:44:57" (2/3) ... [2025-03-09 06:44:58,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@330db161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:44:58, skipping insertion in model container [2025-03-09 06:44:58,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:44:58" (3/3) ... [2025-03-09 06:44:58,353 INFO L128 eAbstractionObserver]: Analyzing ICFG arithmetic_prog_bad.i [2025-03-09 06:44:58,365 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:44:58,366 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG arithmetic_prog_bad.i that has 3 procedures, 45 locations, 1 initial locations, 4 loop locations, and 8 error locations. [2025-03-09 06:44:58,366 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:44:58,450 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 06:44:58,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 48 transitions, 110 flow [2025-03-09 06:44:58,506 INFO L124 PetriNetUnfolderBase]: 4/46 cut-off events. [2025-03-09 06:44:58,509 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-09 06:44:58,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 46 events. 4/46 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 110 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2025-03-09 06:44:58,513 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 48 transitions, 110 flow [2025-03-09 06:44:58,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 44 transitions, 97 flow [2025-03-09 06:44:58,524 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:44:58,538 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;@7c945a6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:44:58,538 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2025-03-09 06:44:58,560 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:44:58,561 INFO L124 PetriNetUnfolderBase]: 1/20 cut-off events. [2025-03-09 06:44:58,562 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-09 06:44:58,562 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:44:58,562 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:44:58,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:44:58,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:44:58,568 INFO L85 PathProgramCache]: Analyzing trace with hash -472675933, now seen corresponding path program 1 times [2025-03-09 06:44:58,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:44:58,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526165719] [2025-03-09 06:44:58,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:44:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:44:58,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:44:59,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:44:59,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:44:59,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:44:59,190 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 06:44:59,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:44:59,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526165719] [2025-03-09 06:44:59,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526165719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:44:59,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:44:59,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:44:59,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577037360] [2025-03-09 06:44:59,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:44:59,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:44:59,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:44:59,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:44:59,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:44:59,226 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 48 [2025-03-09 06:44:59,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 44 transitions, 97 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 06:44:59,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:44:59,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 48 [2025-03-09 06:44:59,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:44:59,533 INFO L124 PetriNetUnfolderBase]: 682/1355 cut-off events. [2025-03-09 06:44:59,533 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2025-03-09 06:44:59,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2514 conditions, 1355 events. 682/1355 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7097 event pairs, 189 based on Foata normal form. 16/1194 useless extension candidates. Maximal degree in co-relation 2407. Up to 746 conditions per place. [2025-03-09 06:44:59,544 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 54 selfloop transitions, 5 changer transitions 2/75 dead transitions. [2025-03-09 06:44:59,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 75 transitions, 290 flow [2025-03-09 06:44:59,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:44:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:44:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-03-09 06:44:59,557 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2025-03-09 06:44:59,558 INFO L175 Difference]: Start difference. First operand has 47 places, 44 transitions, 97 flow. Second operand 4 states and 130 transitions. [2025-03-09 06:44:59,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 75 transitions, 290 flow [2025-03-09 06:44:59,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 75 transitions, 281 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:44:59,565 INFO L231 Difference]: Finished difference. Result has 50 places, 48 transitions, 136 flow [2025-03-09 06:44:59,567 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2025-03-09 06:44:59,571 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2025-03-09 06:44:59,571 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 48 transitions, 136 flow [2025-03-09 06:44:59,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 06:44:59,572 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:44:59,572 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:44:59,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:44:59,572 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:44:59,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:44:59,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1461523685, now seen corresponding path program 1 times [2025-03-09 06:44:59,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:44:59,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152285227] [2025-03-09 06:44:59,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:44:59,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:44:59,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 06:44:59,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 06:44:59,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:44:59,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:44:59,860 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 06:44:59,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:44:59,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152285227] [2025-03-09 06:44:59,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152285227] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:44:59,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:44:59,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:44:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302061615] [2025-03-09 06:44:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:44:59,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:44:59,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:44:59,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:44:59,862 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:44:59,871 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-09 06:44:59,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 48 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 06:44:59,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:44:59,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-09 06:44:59,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:00,083 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([718] L894-->L897-3: Formula: (and (not (= v_~num~0_23 0)) (= (+ v_~total~0_18 v_thread2Thread1of1ForFork1_~j~0_7) v_~total~0_17) (= v_~num~0_23 |v_thread2Thread1of1ForFork1_#t~post13_1|)) InVars {~num~0=v_~num~0_23, thread2Thread1of1ForFork1_~j~0=v_thread2Thread1of1ForFork1_~j~0_7, ~total~0=v_~total~0_18} OutVars{~num~0=v_~num~0_23, thread2Thread1of1ForFork1_#t~post13=|v_thread2Thread1of1ForFork1_#t~post13_1|, thread2Thread1of1ForFork1_~j~0=v_thread2Thread1of1ForFork1_~j~0_7, ~total~0=v_~total~0_17} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_#t~post13, ~total~0][55], [63#true, 35#L915true, 21#L881-5true, 48#L897-3true, Black: 59#(and (= |thread1Thread1of1ForFork0_#t~post7| 0) (= ~num~0 0)), 54#true, Black: 56#(= ~num~0 0), 52#true]) [2025-03-09 06:45:00,084 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2025-03-09 06:45:00,084 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2025-03-09 06:45:00,085 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2025-03-09 06:45:00,085 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2025-03-09 06:45:00,098 INFO L124 PetriNetUnfolderBase]: 769/1468 cut-off events. [2025-03-09 06:45:00,098 INFO L125 PetriNetUnfolderBase]: For 388/393 co-relation queries the response was YES. [2025-03-09 06:45:00,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3154 conditions, 1468 events. 769/1468 cut-off events. For 388/393 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 7798 event pairs, 327 based on Foata normal form. 40/1410 useless extension candidates. Maximal degree in co-relation 2521. Up to 939 conditions per place. [2025-03-09 06:45:00,108 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 60 selfloop transitions, 3 changer transitions 0/80 dead transitions. [2025-03-09 06:45:00,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 80 transitions, 346 flow [2025-03-09 06:45:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:45:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:45:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2025-03-09 06:45:00,109 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.703125 [2025-03-09 06:45:00,110 INFO L175 Difference]: Start difference. First operand has 50 places, 48 transitions, 136 flow. Second operand 4 states and 135 transitions. [2025-03-09 06:45:00,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 80 transitions, 346 flow [2025-03-09 06:45:00,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 80 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:45:00,111 INFO L231 Difference]: Finished difference. Result has 55 places, 50 transitions, 160 flow [2025-03-09 06:45:00,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=160, PETRI_PLACES=55, PETRI_TRANSITIONS=50} [2025-03-09 06:45:00,112 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 8 predicate places. [2025-03-09 06:45:00,112 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 50 transitions, 160 flow [2025-03-09 06:45:00,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 06:45:00,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:00,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:00,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:45:00,112 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:00,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1535310259, now seen corresponding path program 1 times [2025-03-09 06:45:00,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:00,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714151211] [2025-03-09 06:45:00,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:00,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-09 06:45:00,296 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-09 06:45:00,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:00,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:00,416 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 06:45:00,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:00,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714151211] [2025-03-09 06:45:00,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714151211] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:00,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:00,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:45:00,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528563902] [2025-03-09 06:45:00,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:00,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:45:00,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:00,417 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:45:00,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:45:00,418 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2025-03-09 06:45:00,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 50 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:45:00,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:00,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2025-03-09 06:45:00,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:00,565 INFO L124 PetriNetUnfolderBase]: 382/958 cut-off events. [2025-03-09 06:45:00,565 INFO L125 PetriNetUnfolderBase]: For 337/347 co-relation queries the response was YES. [2025-03-09 06:45:00,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 958 events. 382/958 cut-off events. For 337/347 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 5212 event pairs, 143 based on Foata normal form. 46/970 useless extension candidates. Maximal degree in co-relation 1455. Up to 333 conditions per place. [2025-03-09 06:45:00,571 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 36 selfloop transitions, 8 changer transitions 0/63 dead transitions. [2025-03-09 06:45:00,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 289 flow [2025-03-09 06:45:00,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:45:00,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:45:00,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2025-03-09 06:45:00,572 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7083333333333334 [2025-03-09 06:45:00,572 INFO L175 Difference]: Start difference. First operand has 55 places, 50 transitions, 160 flow. Second operand 3 states and 102 transitions. [2025-03-09 06:45:00,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 289 flow [2025-03-09 06:45:00,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 63 transitions, 283 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-09 06:45:00,575 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 166 flow [2025-03-09 06:45:00,575 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=166, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2025-03-09 06:45:00,575 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 9 predicate places. [2025-03-09 06:45:00,575 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 166 flow [2025-03-09 06:45:00,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:45:00,575 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:00,576 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:00,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 06:45:00,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:00,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:00,576 INFO L85 PathProgramCache]: Analyzing trace with hash -534673867, now seen corresponding path program 1 times [2025-03-09 06:45:00,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:00,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059121531] [2025-03-09 06:45:00,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:00,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:00,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:45:00,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:45:00,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:00,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:00,869 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 06:45:00,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:00,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059121531] [2025-03-09 06:45:00,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059121531] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:00,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:00,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:45:00,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398972525] [2025-03-09 06:45:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:00,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:45:00,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:00,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:45:00,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:45:00,888 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-09 06:45:00,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 166 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 06:45:00,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:00,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-09 06:45:00,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:01,159 INFO L124 PetriNetUnfolderBase]: 557/1204 cut-off events. [2025-03-09 06:45:01,160 INFO L125 PetriNetUnfolderBase]: For 551/569 co-relation queries the response was YES. [2025-03-09 06:45:01,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2878 conditions, 1204 events. 557/1204 cut-off events. For 551/569 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 5823 event pairs, 116 based on Foata normal form. 33/1180 useless extension candidates. Maximal degree in co-relation 2397. Up to 389 conditions per place. [2025-03-09 06:45:01,169 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 76 selfloop transitions, 8 changer transitions 5/101 dead transitions. [2025-03-09 06:45:01,169 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 101 transitions, 524 flow [2025-03-09 06:45:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:45:01,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:45:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 180 transitions. [2025-03-09 06:45:01,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-09 06:45:01,173 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 166 flow. Second operand 7 states and 180 transitions. [2025-03-09 06:45:01,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 101 transitions, 524 flow [2025-03-09 06:45:01,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 101 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:45:01,177 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 208 flow [2025-03-09 06:45:01,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=208, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2025-03-09 06:45:01,178 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 17 predicate places. [2025-03-09 06:45:01,178 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 208 flow [2025-03-09 06:45:01,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 06:45:01,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:01,179 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:01,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:45:01,179 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:01,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash -525460983, now seen corresponding path program 1 times [2025-03-09 06:45:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:01,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434837728] [2025-03-09 06:45:01,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:01,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-09 06:45:01,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-09 06:45:01,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:01,368 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:01,452 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 06:45:01,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:01,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434837728] [2025-03-09 06:45:01,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434837728] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:01,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:01,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:45:01,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581922817] [2025-03-09 06:45:01,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:01,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:45:01,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:01,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:45:01,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:45:01,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-09 06:45:01,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 208 flow. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 06:45:01,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:01,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-09 06:45:01,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:01,722 INFO L124 PetriNetUnfolderBase]: 719/1581 cut-off events. [2025-03-09 06:45:01,722 INFO L125 PetriNetUnfolderBase]: For 1255/1291 co-relation queries the response was YES. [2025-03-09 06:45:01,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 1581 events. 719/1581 cut-off events. For 1255/1291 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 7902 event pairs, 182 based on Foata normal form. 30/1576 useless extension candidates. Maximal degree in co-relation 3412. Up to 591 conditions per place. [2025-03-09 06:45:01,731 INFO L140 encePairwiseOnDemand]: 40/48 looper letters, 80 selfloop transitions, 12 changer transitions 4/108 dead transitions. [2025-03-09 06:45:01,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 108 transitions, 603 flow [2025-03-09 06:45:01,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:45:01,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:45:01,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 182 transitions. [2025-03-09 06:45:01,734 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2025-03-09 06:45:01,735 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 208 flow. Second operand 7 states and 182 transitions. [2025-03-09 06:45:01,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 108 transitions, 603 flow [2025-03-09 06:45:01,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 108 transitions, 597 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:45:01,739 INFO L231 Difference]: Finished difference. Result has 71 places, 60 transitions, 302 flow [2025-03-09 06:45:01,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=302, PETRI_PLACES=71, PETRI_TRANSITIONS=60} [2025-03-09 06:45:01,739 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 24 predicate places. [2025-03-09 06:45:01,739 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 60 transitions, 302 flow [2025-03-09 06:45:01,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 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 06:45:01,741 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:01,741 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] [2025-03-09 06:45:01,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:45:01,741 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:01,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:01,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1148399117, now seen corresponding path program 1 times [2025-03-09 06:45:01,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:01,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744678837] [2025-03-09 06:45:01,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:01,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:01,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 06:45:01,898 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 06:45:01,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:01,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:01,965 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 06:45:01,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:01,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744678837] [2025-03-09 06:45:01,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744678837] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:01,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:01,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:45:01,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26177624] [2025-03-09 06:45:01,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:01,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:45:01,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:01,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:45:01,968 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:45:01,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-09 06:45:01,977 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 60 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 06:45:01,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:01,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-09 06:45:01,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:02,199 INFO L124 PetriNetUnfolderBase]: 859/1917 cut-off events. [2025-03-09 06:45:02,199 INFO L125 PetriNetUnfolderBase]: For 2158/2222 co-relation queries the response was YES. [2025-03-09 06:45:02,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4819 conditions, 1917 events. 859/1917 cut-off events. For 2158/2222 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10613 event pairs, 463 based on Foata normal form. 68/1926 useless extension candidates. Maximal degree in co-relation 4351. Up to 1100 conditions per place. [2025-03-09 06:45:02,209 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 75 selfloop transitions, 3 changer transitions 0/99 dead transitions. [2025-03-09 06:45:02,209 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 99 transitions, 649 flow [2025-03-09 06:45:02,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:45:02,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:45:02,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 134 transitions. [2025-03-09 06:45:02,210 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2025-03-09 06:45:02,210 INFO L175 Difference]: Start difference. First operand has 71 places, 60 transitions, 302 flow. Second operand 4 states and 134 transitions. [2025-03-09 06:45:02,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 99 transitions, 649 flow [2025-03-09 06:45:02,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 99 transitions, 629 flow, removed 3 selfloop flow, removed 3 redundant places. [2025-03-09 06:45:02,214 INFO L231 Difference]: Finished difference. Result has 73 places, 62 transitions, 314 flow [2025-03-09 06:45:02,214 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=73, PETRI_TRANSITIONS=62} [2025-03-09 06:45:02,214 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2025-03-09 06:45:02,215 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 62 transitions, 314 flow [2025-03-09 06:45:02,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 06:45:02,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:02,215 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:02,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:45:02,215 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:02,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1768840835, now seen corresponding path program 1 times [2025-03-09 06:45:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:02,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369453060] [2025-03-09 06:45:02,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:02,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:02,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-03-09 06:45:02,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-03-09 06:45:02,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:02,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:02,476 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 06:45:02,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:02,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369453060] [2025-03-09 06:45:02,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369453060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:02,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:02,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-09 06:45:02,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147887582] [2025-03-09 06:45:02,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:02,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 06:45:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:02,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 06:45:02,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:45:02,502 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 48 [2025-03-09 06:45:02,502 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 62 transitions, 314 flow. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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 06:45:02,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:02,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 48 [2025-03-09 06:45:02,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:02,832 INFO L124 PetriNetUnfolderBase]: 885/1915 cut-off events. [2025-03-09 06:45:02,833 INFO L125 PetriNetUnfolderBase]: For 2810/2928 co-relation queries the response was YES. [2025-03-09 06:45:02,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5332 conditions, 1915 events. 885/1915 cut-off events. For 2810/2928 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 10130 event pairs, 89 based on Foata normal form. 71/1980 useless extension candidates. Maximal degree in co-relation 4876. Up to 632 conditions per place. [2025-03-09 06:45:02,845 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 73 selfloop transitions, 18 changer transitions 2/105 dead transitions. [2025-03-09 06:45:02,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 105 transitions, 667 flow [2025-03-09 06:45:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-09 06:45:02,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-09 06:45:02,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 171 transitions. [2025-03-09 06:45:02,846 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5089285714285714 [2025-03-09 06:45:02,847 INFO L175 Difference]: Start difference. First operand has 73 places, 62 transitions, 314 flow. Second operand 7 states and 171 transitions. [2025-03-09 06:45:02,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 105 transitions, 667 flow [2025-03-09 06:45:02,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 105 transitions, 659 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:45:02,852 INFO L231 Difference]: Finished difference. Result has 74 places, 60 transitions, 354 flow [2025-03-09 06:45:02,852 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=289, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=74, PETRI_TRANSITIONS=60} [2025-03-09 06:45:02,853 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-09 06:45:02,853 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 60 transitions, 354 flow [2025-03-09 06:45:02,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 8 states have internal predecessors, (131), 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 06:45:02,854 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:02,854 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:02,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-09 06:45:02,855 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:02,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:02,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1022886515, now seen corresponding path program 1 times [2025-03-09 06:45:02,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:02,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755955000] [2025-03-09 06:45:02,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:02,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:02,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:45:03,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:45:03,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:03,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:03,106 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 06:45:03,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:03,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755955000] [2025-03-09 06:45:03,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755955000] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:03,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:03,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-09 06:45:03,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757014019] [2025-03-09 06:45:03,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:03,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:45:03,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:03,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:45:03,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-09 06:45:03,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-09 06:45:03,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 60 transitions, 354 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 06:45:03,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:03,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-09 06:45:03,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:03,434 INFO L124 PetriNetUnfolderBase]: 866/1910 cut-off events. [2025-03-09 06:45:03,434 INFO L125 PetriNetUnfolderBase]: For 3657/3741 co-relation queries the response was YES. [2025-03-09 06:45:03,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5447 conditions, 1910 events. 866/1910 cut-off events. For 3657/3741 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10368 event pairs, 63 based on Foata normal form. 57/1913 useless extension candidates. Maximal degree in co-relation 5267. Up to 968 conditions per place. [2025-03-09 06:45:03,443 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 98 selfloop transitions, 5 changer transitions 0/121 dead transitions. [2025-03-09 06:45:03,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 121 transitions, 911 flow [2025-03-09 06:45:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:45:03,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:45:03,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2025-03-09 06:45:03,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6423611111111112 [2025-03-09 06:45:03,445 INFO L175 Difference]: Start difference. First operand has 74 places, 60 transitions, 354 flow. Second operand 6 states and 185 transitions. [2025-03-09 06:45:03,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 121 transitions, 911 flow [2025-03-09 06:45:03,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 121 transitions, 840 flow, removed 17 selfloop flow, removed 4 redundant places. [2025-03-09 06:45:03,449 INFO L231 Difference]: Finished difference. Result has 74 places, 59 transitions, 323 flow [2025-03-09 06:45:03,450 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=323, PETRI_PLACES=74, PETRI_TRANSITIONS=59} [2025-03-09 06:45:03,452 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-09 06:45:03,452 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 59 transitions, 323 flow [2025-03-09 06:45:03,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 06:45:03,452 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:03,453 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:03,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-09 06:45:03,453 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:03,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1353728479, now seen corresponding path program 1 times [2025-03-09 06:45:03,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:03,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275663157] [2025-03-09 06:45:03,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:03,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:03,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:45:03,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:45:03,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:03,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:03,669 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:45:03,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:03,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275663157] [2025-03-09 06:45:03,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275663157] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:45:03,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620488971] [2025-03-09 06:45:03,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:03,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:45:03,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:45:03,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:45:03,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:45:03,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-03-09 06:45:03,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-03-09 06:45:03,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:03,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:04,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:45:04,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:45:04,059 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:45:04,059 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:45:04,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620488971] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:04,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:45:04,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-03-09 06:45:04,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246755184] [2025-03-09 06:45:04,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:04,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:45:04,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:04,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:45:04,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:45:04,069 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2025-03-09 06:45:04,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 59 transitions, 323 flow. Second operand has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 06:45:04,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:04,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2025-03-09 06:45:04,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:04,374 INFO L124 PetriNetUnfolderBase]: 886/1938 cut-off events. [2025-03-09 06:45:04,375 INFO L125 PetriNetUnfolderBase]: For 2995/3039 co-relation queries the response was YES. [2025-03-09 06:45:04,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5439 conditions, 1938 events. 886/1938 cut-off events. For 2995/3039 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 10467 event pairs, 66 based on Foata normal form. 57/1935 useless extension candidates. Maximal degree in co-relation 4963. Up to 792 conditions per place. [2025-03-09 06:45:04,388 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 96 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2025-03-09 06:45:04,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 118 transitions, 815 flow [2025-03-09 06:45:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:45:04,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:45:04,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2025-03-09 06:45:04,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65625 [2025-03-09 06:45:04,390 INFO L175 Difference]: Start difference. First operand has 74 places, 59 transitions, 323 flow. Second operand 6 states and 189 transitions. [2025-03-09 06:45:04,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 118 transitions, 815 flow [2025-03-09 06:45:04,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 118 transitions, 796 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:45:04,397 INFO L231 Difference]: Finished difference. Result has 75 places, 58 transitions, 324 flow [2025-03-09 06:45:04,397 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=75, PETRI_TRANSITIONS=58} [2025-03-09 06:45:04,398 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 28 predicate places. [2025-03-09 06:45:04,398 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 58 transitions, 324 flow [2025-03-09 06:45:04,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 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 06:45:04,398 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:04,398 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:04,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:45:04,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:45:04,599 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:04,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:04,600 INFO L85 PathProgramCache]: Analyzing trace with hash -222562912, now seen corresponding path program 1 times [2025-03-09 06:45:04,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:04,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159144667] [2025-03-09 06:45:04,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:04,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:04,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 06:45:04,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 06:45:04,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:04,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:04,816 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 06:45:04,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:04,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159144667] [2025-03-09 06:45:04,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159144667] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:04,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:04,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:45:04,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330379164] [2025-03-09 06:45:04,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:04,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:45:04,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:04,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:45:04,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:45:04,821 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2025-03-09 06:45:04,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 58 transitions, 324 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 06:45:04,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:04,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2025-03-09 06:45:04,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:05,035 INFO L124 PetriNetUnfolderBase]: 930/1981 cut-off events. [2025-03-09 06:45:05,036 INFO L125 PetriNetUnfolderBase]: For 3557/3584 co-relation queries the response was YES. [2025-03-09 06:45:05,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5742 conditions, 1981 events. 930/1981 cut-off events. For 3557/3584 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 10575 event pairs, 235 based on Foata normal form. 57/2021 useless extension candidates. Maximal degree in co-relation 3433. Up to 882 conditions per place. [2025-03-09 06:45:05,047 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 76 selfloop transitions, 6 changer transitions 0/98 dead transitions. [2025-03-09 06:45:05,047 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 98 transitions, 730 flow [2025-03-09 06:45:05,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:45:05,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:45:05,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2025-03-09 06:45:05,048 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.640625 [2025-03-09 06:45:05,048 INFO L175 Difference]: Start difference. First operand has 75 places, 58 transitions, 324 flow. Second operand 4 states and 123 transitions. [2025-03-09 06:45:05,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 98 transitions, 730 flow [2025-03-09 06:45:05,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 98 transitions, 711 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-09 06:45:05,052 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 331 flow [2025-03-09 06:45:05,053 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2025-03-09 06:45:05,053 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-09 06:45:05,053 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 331 flow [2025-03-09 06:45:05,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 06:45:05,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:05,053 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:05,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-09 06:45:05,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:05,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:05,054 INFO L85 PathProgramCache]: Analyzing trace with hash 984090809, now seen corresponding path program 1 times [2025-03-09 06:45:05,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:05,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925530260] [2025-03-09 06:45:05,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:05,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:05,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-09 06:45:05,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-09 06:45:05,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:05,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:45:05,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:05,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925530260] [2025-03-09 06:45:05,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925530260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:05,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:05,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:45:05,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998866976] [2025-03-09 06:45:05,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:05,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:45:05,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:05,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:45:05,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:45:05,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 48 [2025-03-09 06:45:05,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 06:45:05,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:05,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 48 [2025-03-09 06:45:05,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:05,480 INFO L124 PetriNetUnfolderBase]: 913/1939 cut-off events. [2025-03-09 06:45:05,481 INFO L125 PetriNetUnfolderBase]: For 3635/3637 co-relation queries the response was YES. [2025-03-09 06:45:05,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5739 conditions, 1939 events. 913/1939 cut-off events. For 3635/3637 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 10076 event pairs, 180 based on Foata normal form. 57/1989 useless extension candidates. Maximal degree in co-relation 5197. Up to 917 conditions per place. [2025-03-09 06:45:05,495 INFO L140 encePairwiseOnDemand]: 43/48 looper letters, 67 selfloop transitions, 6 changer transitions 0/89 dead transitions. [2025-03-09 06:45:05,495 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 89 transitions, 638 flow [2025-03-09 06:45:05,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:45:05,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:45:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 120 transitions. [2025-03-09 06:45:05,496 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-03-09 06:45:05,496 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 331 flow. Second operand 4 states and 120 transitions. [2025-03-09 06:45:05,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 89 transitions, 638 flow [2025-03-09 06:45:05,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 613 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-09 06:45:05,503 INFO L231 Difference]: Finished difference. Result has 74 places, 58 transitions, 335 flow [2025-03-09 06:45:05,503 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=335, PETRI_PLACES=74, PETRI_TRANSITIONS=58} [2025-03-09 06:45:05,504 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-09 06:45:05,504 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 58 transitions, 335 flow [2025-03-09 06:45:05,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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 06:45:05,504 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:45:05,504 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:05,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-09 06:45:05,505 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2025-03-09 06:45:05,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:45:05,505 INFO L85 PathProgramCache]: Analyzing trace with hash 262575545, now seen corresponding path program 1 times [2025-03-09 06:45:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:45:05,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12010322] [2025-03-09 06:45:05,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:45:05,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:45:05,703 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-09 06:45:05,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-09 06:45:05,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:45:05,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:45:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:45:05,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:45:05,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12010322] [2025-03-09 06:45:05,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12010322] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:45:05,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:45:05,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-09 06:45:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076227985] [2025-03-09 06:45:05,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:45:05,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:45:05,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:45:05,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:45:05,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:45:05,807 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 48 [2025-03-09 06:45:05,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 58 transitions, 335 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 06:45:05,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:45:05,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 48 [2025-03-09 06:45:05,808 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:45:05,985 INFO L124 PetriNetUnfolderBase]: 833/1810 cut-off events. [2025-03-09 06:45:05,985 INFO L125 PetriNetUnfolderBase]: For 3774/3780 co-relation queries the response was YES. [2025-03-09 06:45:05,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5505 conditions, 1810 events. 833/1810 cut-off events. For 3774/3780 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 9416 event pairs, 563 based on Foata normal form. 13/1805 useless extension candidates. Maximal degree in co-relation 4917. Up to 1241 conditions per place. [2025-03-09 06:45:05,991 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2025-03-09 06:45:05,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 72 transitions, 520 flow [2025-03-09 06:45:05,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:45:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:45:05,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 115 transitions. [2025-03-09 06:45:05,993 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4791666666666667 [2025-03-09 06:45:05,993 INFO L175 Difference]: Start difference. First operand has 74 places, 58 transitions, 335 flow. Second operand 5 states and 115 transitions. [2025-03-09 06:45:05,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 72 transitions, 520 flow [2025-03-09 06:45:05,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 72 transitions, 505 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 06:45:05,998 INFO L231 Difference]: Finished difference. Result has 74 places, 0 transitions, 0 flow [2025-03-09 06:45:05,998 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=74, PETRI_TRANSITIONS=0} [2025-03-09 06:45:05,998 INFO L279 CegarLoopForPetriNet]: 47 programPoint places, 27 predicate places. [2025-03-09 06:45:05,999 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 0 transitions, 0 flow [2025-03-09 06:45:05,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 06:45:06,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2025-03-09 06:45:06,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2025-03-09 06:45:06,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2025-03-09 06:45:06,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2025-03-09 06:45:06,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2025-03-09 06:45:06,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-09 06:45:06,003 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:45:06,006 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:45:06,006 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:45:06,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:45:06 BasicIcfg [2025-03-09 06:45:06,010 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:45:06,011 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:45:06,011 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:45:06,011 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:45:06,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:44:58" (3/4) ... [2025-03-09 06:45:06,012 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:45:06,014 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:45:06,014 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:45:06,020 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 146 nodes and edges [2025-03-09 06:45:06,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 70 nodes and edges [2025-03-09 06:45:06,022 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2025-03-09 06:45:06,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-09 06:45:06,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-09 06:45:06,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 06:45:06,024 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-09 06:45:06,092 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:45:06,093 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:45:06,093 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:45:06,095 INFO L158 Benchmark]: Toolchain (without parser) took 9265.12ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 104.7MB in the beginning and 330.4MB in the end (delta: -225.7MB). Peak memory consumption was 337.9MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,095 INFO L158 Benchmark]: CDTParser took 0.94ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:45:06,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.71ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.23ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,096 INFO L158 Benchmark]: Boogie Preprocessor took 46.03ms. Allocated memory is still 142.6MB. Free memory was 74.1MB in the beginning and 71.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:45:06,096 INFO L158 Benchmark]: IcfgBuilder took 1076.56ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 45.3MB in the end (delta: 26.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,096 INFO L158 Benchmark]: TraceAbstraction took 7661.86ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 44.4MB in the beginning and 338.7MB in the end (delta: -294.3MB). Peak memory consumption was 268.1MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,097 INFO L158 Benchmark]: Witness Printer took 82.28ms. Allocated memory is still 704.6MB. Free memory was 338.7MB in the beginning and 330.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:45:06,097 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.94ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.71ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.0MB in the end (delta: 27.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.23ms. Allocated memory is still 142.6MB. Free memory was 77.0MB in the beginning and 74.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.03ms. Allocated memory is still 142.6MB. Free memory was 74.1MB in the beginning and 71.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1076.56ms. Allocated memory is still 142.6MB. Free memory was 71.4MB in the beginning and 45.3MB in the end (delta: 26.1MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7661.86ms. Allocated memory was 142.6MB in the beginning and 704.6MB in the end (delta: 562.0MB). Free memory was 44.4MB in the beginning and 338.7MB in the end (delta: -294.3MB). Peak memory consumption was 268.1MB. Max. memory is 16.1GB. * Witness Printer took 82.28ms. Allocated memory is still 704.6MB. Free memory was 338.7MB in the beginning and 330.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 882]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 885]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 897]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 900]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 90 edges, 18 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: 7.5s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 607 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 543 mSDsluCounter, 172 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 124 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1969 IncrementalHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 48 mSDtfsCounter, 1969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred in iteration=7, InterpolantAutomatonStates: 61, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 325 NumberOfCodeBlocks, 325 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 312 ConstructedInterpolants, 0 QuantifiedInterpolants, 748 SizeOfPredicates, 2 NumberOfNonLiveVariables, 411 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 27/36 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 06:45:06,109 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