./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/weaver/chl-array-int-subst.wvr.c -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 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:40:11,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:40:11,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:40:11,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:40:11,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:40:11,225 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:40:11,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:40:11,225 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:40:11,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:40:11,226 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:40:11,226 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:40:11,226 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:40:11,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:40:11,226 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:40:11,227 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:40:11,227 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:40:11,228 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:40:11,228 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:40:11,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:40:11,228 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 -> 779f57e464f50d458e1b66270e0c9f2866c6247d4d7f63a3096c6ac13e286657 [2025-03-17 19:40:11,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:40:11,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:40:11,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:40:11,440 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:40:11,440 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:40:11,441 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-17 19:40:12,576 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa16210b4/3334988de82a4373b80cf71a62ce32f4/FLAGc8a9a0b1c [2025-03-17 19:40:12,794 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:40:12,794 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-17 19:40:12,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa16210b4/3334988de82a4373b80cf71a62ce32f4/FLAGc8a9a0b1c [2025-03-17 19:40:13,142 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa16210b4/3334988de82a4373b80cf71a62ce32f4 [2025-03-17 19:40:13,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:40:13,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:40:13,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:40:13,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:40:13,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:40:13,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c0077c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13, skipping insertion in model container [2025-03-17 19:40:13,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:40:13,314 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:40:13,324 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:40:13,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:40:13,358 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:40:13,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13 WrapperNode [2025-03-17 19:40:13,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:40:13,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:40:13,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:40:13,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:40:13,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,390 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 318 [2025-03-17 19:40:13,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:40:13,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:40:13,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:40:13,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:40:13,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,399 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,421 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2025-03-17 19:40:13,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,427 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,429 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:40:13,432 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:40:13,432 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:40:13,432 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:40:13,433 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (1/1) ... [2025-03-17 19:40:13,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:40:13,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:13,454 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) [2025-03-17 19:40:13,457 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 [2025-03-17 19:40:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:40:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:40:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:40:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:40:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:40:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-17 19:40:13,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-17 19:40:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:40:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:40:13,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:40:13,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:40:13,477 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:40:13,554 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:40:13,555 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:40:13,991 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:40:13,991 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:40:14,191 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:40:14,191 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:40:14,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:40:14 BoogieIcfgContainer [2025-03-17 19:40:14,192 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:40:14,193 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:40:14,193 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:40:14,196 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:40:14,197 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:40:13" (1/3) ... [2025-03-17 19:40:14,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb91bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:40:14, skipping insertion in model container [2025-03-17 19:40:14,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:40:13" (2/3) ... [2025-03-17 19:40:14,198 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eb91bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:40:14, skipping insertion in model container [2025-03-17 19:40:14,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:40:14" (3/3) ... [2025-03-17 19:40:14,199 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2025-03-17 19:40:14,211 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:40:14,212 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-array-int-subst.wvr.c that has 4 procedures, 114 locations, 1 initial locations, 6 loop locations, and 36 error locations. [2025-03-17 19:40:14,212 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:40:14,271 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:40:14,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 277 flow [2025-03-17 19:40:14,332 INFO L124 PetriNetUnfolderBase]: 15/125 cut-off events. [2025-03-17 19:40:14,335 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-17 19:40:14,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 125 events. 15/125 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 502 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 105. Up to 2 conditions per place. [2025-03-17 19:40:14,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 277 flow [2025-03-17 19:40:14,345 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 261 flow [2025-03-17 19:40:14,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:40:14,362 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;@7b8c09d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:40:14,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2025-03-17 19:40:14,366 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:40:14,366 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-17 19:40:14,366 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:40:14,366 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:14,366 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:40:14,367 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:14,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:14,370 INFO L85 PathProgramCache]: Analyzing trace with hash 907416, now seen corresponding path program 1 times [2025-03-17 19:40:14,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:14,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984539064] [2025-03-17 19:40:14,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:14,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:14,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:40:14,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:40:14,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:14,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:14,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:14,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:14,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984539064] [2025-03-17 19:40:14,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984539064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:14,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:14,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:40:14,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725793429] [2025-03-17 19:40:14,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:14,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:40:14,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:14,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:40:14,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:40:14,600 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-17 19:40:14,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 123 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-17 19:40:14,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:14,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-17 19:40:14,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:16,033 INFO L124 PetriNetUnfolderBase]: 9698/20025 cut-off events. [2025-03-17 19:40:16,033 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2025-03-17 19:40:16,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33113 conditions, 20025 events. 9698/20025 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 194298 event pairs, 6400 based on Foata normal form. 3/16039 useless extension candidates. Maximal degree in co-relation 31926. Up to 12708 conditions per place. [2025-03-17 19:40:16,167 INFO L140 encePairwiseOnDemand]: 112/128 looper letters, 59 selfloop transitions, 10 changer transitions 0/132 dead transitions. [2025-03-17 19:40:16,167 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 417 flow [2025-03-17 19:40:16,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:40:16,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:40:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2025-03-17 19:40:16,179 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662109375 [2025-03-17 19:40:16,181 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 261 flow. Second operand 4 states and 339 transitions. [2025-03-17 19:40:16,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 417 flow [2025-03-17 19:40:16,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 408 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-17 19:40:16,194 INFO L231 Difference]: Finished difference. Result has 119 places, 132 transitions, 340 flow [2025-03-17 19:40:16,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=119, PETRI_TRANSITIONS=132} [2025-03-17 19:40:16,199 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 1 predicate places. [2025-03-17 19:40:16,200 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 132 transitions, 340 flow [2025-03-17 19:40:16,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.75) internal successors, (267), 4 states have internal predecessors, (267), 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) [2025-03-17 19:40:16,200 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:16,200 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 19:40:16,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:40:16,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:16,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1263789546, now seen corresponding path program 1 times [2025-03-17 19:40:16,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:16,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503215737] [2025-03-17 19:40:16,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:16,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:16,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:40:16,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:40:16,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:16,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:16,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503215737] [2025-03-17 19:40:16,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503215737] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:40:16,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420854796] [2025-03-17 19:40:16,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:16,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:16,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:16,331 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) [2025-03-17 19:40:16,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 19:40:16,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:40:16,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:40:16,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:16,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:16,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:40:16,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:40:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:16,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:40:16,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420854796] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:16,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:40:16,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:40:16,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126525374] [2025-03-17 19:40:16,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:16,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:40:16,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:16,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:40:16,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:40:16,461 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-17 19:40:16,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 132 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-17 19:40:16,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:16,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-17 19:40:16,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:17,729 INFO L124 PetriNetUnfolderBase]: 9698/20022 cut-off events. [2025-03-17 19:40:17,729 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-03-17 19:40:17,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33005 conditions, 20022 events. 9698/20022 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 194307 event pairs, 6400 based on Foata normal form. 3/16041 useless extension candidates. Maximal degree in co-relation 32932. Up to 12693 conditions per place. [2025-03-17 19:40:17,886 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 49 selfloop transitions, 17 changer transitions 0/129 dead transitions. [2025-03-17 19:40:17,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 129 transitions, 460 flow [2025-03-17 19:40:17,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:40:17,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:40:17,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-17 19:40:17,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.60546875 [2025-03-17 19:40:17,892 INFO L175 Difference]: Start difference. First operand has 119 places, 132 transitions, 340 flow. Second operand 6 states and 465 transitions. [2025-03-17 19:40:17,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 129 transitions, 460 flow [2025-03-17 19:40:17,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:40:17,894 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 362 flow [2025-03-17 19:40:17,895 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=362, PETRI_PLACES=121, PETRI_TRANSITIONS=129} [2025-03-17 19:40:17,895 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 3 predicate places. [2025-03-17 19:40:17,895 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 362 flow [2025-03-17 19:40:17,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 66.83333333333333) internal successors, (401), 6 states have internal predecessors, (401), 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) [2025-03-17 19:40:17,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:17,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:40:17,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-17 19:40:18,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:18,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:18,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:18,102 INFO L85 PathProgramCache]: Analyzing trace with hash 545974011, now seen corresponding path program 1 times [2025-03-17 19:40:18,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:18,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074479164] [2025-03-17 19:40:18,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:18,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:18,110 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:40:18,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:40:18,122 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:18,122 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:18,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:18,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:18,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074479164] [2025-03-17 19:40:18,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074479164] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:18,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:18,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:40:18,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701674618] [2025-03-17 19:40:18,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:18,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:40:18,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:18,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:40:18,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:40:18,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-17 19:40:18,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 129 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-17 19:40:18,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:18,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-17 19:40:18,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:20,514 INFO L124 PetriNetUnfolderBase]: 21324/42780 cut-off events. [2025-03-17 19:40:20,514 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-03-17 19:40:20,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71281 conditions, 42780 events. 21324/42780 cut-off events. For 239/239 co-relation queries the response was YES. Maximal size of possible extension queue 1902. Compared 448462 event pairs, 14052 based on Foata normal form. 241/34687 useless extension candidates. Maximal degree in co-relation 35730. Up to 14008 conditions per place. [2025-03-17 19:40:20,765 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 110 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2025-03-17 19:40:20,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 180 transitions, 732 flow [2025-03-17 19:40:20,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:40:20,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:40:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2025-03-17 19:40:20,767 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.715625 [2025-03-17 19:40:20,767 INFO L175 Difference]: Start difference. First operand has 121 places, 129 transitions, 362 flow. Second operand 5 states and 458 transitions. [2025-03-17 19:40:20,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 180 transitions, 732 flow [2025-03-17 19:40:20,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 180 transitions, 680 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-03-17 19:40:20,773 INFO L231 Difference]: Finished difference. Result has 122 places, 130 transitions, 347 flow [2025-03-17 19:40:20,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=347, PETRI_PLACES=122, PETRI_TRANSITIONS=130} [2025-03-17 19:40:20,775 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2025-03-17 19:40:20,775 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 130 transitions, 347 flow [2025-03-17 19:40:20,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-17 19:40:20,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:20,776 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:40:20,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:40:20,776 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:20,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:20,777 INFO L85 PathProgramCache]: Analyzing trace with hash 522771029, now seen corresponding path program 1 times [2025-03-17 19:40:20,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:20,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521550019] [2025-03-17 19:40:20,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:20,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:20,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:40:20,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:40:20,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:20,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:20,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:20,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521550019] [2025-03-17 19:40:20,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521550019] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:40:20,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688084162] [2025-03-17 19:40:20,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:20,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:40:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:40:20,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:40:20,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 19:40:20,907 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:40:20,916 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:40:20,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:20,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:20,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:40:20,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:40:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:20,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:40:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:20,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688084162] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:40:20,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:40:20,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 19:40:20,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904540389] [2025-03-17 19:40:20,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:40:20,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 19:40:20,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:20,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 19:40:20,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:40:20,998 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-17 19:40:20,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 347 flow. Second operand has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-17 19:40:20,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:20,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-17 19:40:20,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:22,826 INFO L124 PetriNetUnfolderBase]: 19405/40071 cut-off events. [2025-03-17 19:40:22,827 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2025-03-17 19:40:22,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66090 conditions, 40071 events. 19405/40071 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 1792. Compared 426911 event pairs, 12800 based on Foata normal form. 12/32115 useless extension candidates. Maximal degree in co-relation 33100. Up to 25407 conditions per place. [2025-03-17 19:40:23,042 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 56 selfloop transitions, 37 changer transitions 0/157 dead transitions. [2025-03-17 19:40:23,042 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 157 transitions, 668 flow [2025-03-17 19:40:23,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:40:23,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:40:23,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2025-03-17 19:40:23,046 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953125 [2025-03-17 19:40:23,046 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 347 flow. Second operand 10 states and 762 transitions. [2025-03-17 19:40:23,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 157 transitions, 668 flow [2025-03-17 19:40:23,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 157 transitions, 660 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-17 19:40:23,052 INFO L231 Difference]: Finished difference. Result has 133 places, 157 transitions, 598 flow [2025-03-17 19:40:23,052 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=598, PETRI_PLACES=133, PETRI_TRANSITIONS=157} [2025-03-17 19:40:23,053 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2025-03-17 19:40:23,053 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 157 transitions, 598 flow [2025-03-17 19:40:23,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 67.08333333333333) internal successors, (805), 12 states have internal predecessors, (805), 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) [2025-03-17 19:40:23,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:23,053 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:40:23,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-17 19:40:23,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 19:40:23,255 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:23,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash -254673973, now seen corresponding path program 1 times [2025-03-17 19:40:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164424272] [2025-03-17 19:40:23,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:23,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:40:23,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:40:23,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:23,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:23,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:23,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:23,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164424272] [2025-03-17 19:40:23,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164424272] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:23,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:23,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:40:23,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034277215] [2025-03-17 19:40:23,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:23,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:40:23,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:23,386 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:40:23,386 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:40:23,415 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-17 19:40:23,416 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 157 transitions, 598 flow. Second operand has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-17 19:40:23,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:23,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-17 19:40:23,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:27,490 INFO L124 PetriNetUnfolderBase]: 41215/82570 cut-off events. [2025-03-17 19:40:27,490 INFO L125 PetriNetUnfolderBase]: For 3083/3083 co-relation queries the response was YES. [2025-03-17 19:40:27,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139020 conditions, 82570 events. 41215/82570 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 3519. Compared 939371 event pairs, 27021 based on Foata normal form. 480/67885 useless extension candidates. Maximal degree in co-relation 138801. Up to 27327 conditions per place. [2025-03-17 19:40:28,014 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 159 selfloop transitions, 9 changer transitions 0/232 dead transitions. [2025-03-17 19:40:28,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 232 transitions, 1248 flow [2025-03-17 19:40:28,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:40:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:40:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 461 transitions. [2025-03-17 19:40:28,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7203125 [2025-03-17 19:40:28,018 INFO L175 Difference]: Start difference. First operand has 133 places, 157 transitions, 598 flow. Second operand 5 states and 461 transitions. [2025-03-17 19:40:28,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 232 transitions, 1248 flow [2025-03-17 19:40:28,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 232 transitions, 1188 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-03-17 19:40:28,028 INFO L231 Difference]: Finished difference. Result has 138 places, 163 transitions, 643 flow [2025-03-17 19:40:28,028 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=561, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=643, PETRI_PLACES=138, PETRI_TRANSITIONS=163} [2025-03-17 19:40:28,030 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 20 predicate places. [2025-03-17 19:40:28,031 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 163 transitions, 643 flow [2025-03-17 19:40:28,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.4) internal successors, (357), 5 states have internal predecessors, (357), 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) [2025-03-17 19:40:28,031 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:28,031 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:40:28,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:40:28,031 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:28,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:28,031 INFO L85 PathProgramCache]: Analyzing trace with hash 693348056, now seen corresponding path program 1 times [2025-03-17 19:40:28,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:28,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020660140] [2025-03-17 19:40:28,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:28,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:28,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-17 19:40:28,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-17 19:40:28,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:28,048 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:28,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:28,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020660140] [2025-03-17 19:40:28,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020660140] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:28,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:28,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:40:28,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720146266] [2025-03-17 19:40:28,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:28,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:40:28,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:28,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:40:28,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:40:28,180 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-17 19:40:28,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 163 transitions, 643 flow. Second operand has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2025-03-17 19:40:28,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:28,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-17 19:40:28,181 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:36,900 INFO L124 PetriNetUnfolderBase]: 85672/171076 cut-off events. [2025-03-17 19:40:36,900 INFO L125 PetriNetUnfolderBase]: For 1064/1064 co-relation queries the response was YES. [2025-03-17 19:40:37,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285618 conditions, 171076 events. 85672/171076 cut-off events. For 1064/1064 co-relation queries the response was YES. Maximal size of possible extension queue 7127. Compared 2115298 event pairs, 56444 based on Foata normal form. 1004/138811 useless extension candidates. Maximal degree in co-relation 285403. Up to 56349 conditions per place. [2025-03-17 19:40:38,043 INFO L140 encePairwiseOnDemand]: 121/128 looper letters, 123 selfloop transitions, 19 changer transitions 0/208 dead transitions. [2025-03-17 19:40:38,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 208 transitions, 1023 flow [2025-03-17 19:40:38,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:40:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:40:38,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 525 transitions. [2025-03-17 19:40:38,045 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68359375 [2025-03-17 19:40:38,045 INFO L175 Difference]: Start difference. First operand has 138 places, 163 transitions, 643 flow. Second operand 6 states and 525 transitions. [2025-03-17 19:40:38,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 208 transitions, 1023 flow [2025-03-17 19:40:38,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 208 transitions, 1021 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-17 19:40:38,049 INFO L231 Difference]: Finished difference. Result has 145 places, 164 transitions, 704 flow [2025-03-17 19:40:38,049 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=704, PETRI_PLACES=145, PETRI_TRANSITIONS=164} [2025-03-17 19:40:38,049 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 27 predicate places. [2025-03-17 19:40:38,049 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 164 transitions, 704 flow [2025-03-17 19:40:38,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 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) [2025-03-17 19:40:38,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:40:38,050 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:40:38,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:40:38,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-17 19:40:38,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:40:38,050 INFO L85 PathProgramCache]: Analyzing trace with hash 18954158, now seen corresponding path program 1 times [2025-03-17 19:40:38,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:40:38,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405170711] [2025-03-17 19:40:38,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:40:38,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:40:38,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:40:38,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:40:38,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:40:38,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:40:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:40:38,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:40:38,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405170711] [2025-03-17 19:40:38,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405170711] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:40:38,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:40:38,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:40:38,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557606189] [2025-03-17 19:40:38,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:40:38,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:40:38,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:40:38,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:40:38,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:40:38,157 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-17 19:40:38,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 164 transitions, 704 flow. Second operand has 5 states, 5 states have (on average 71.8) internal successors, (359), 5 states have internal predecessors, (359), 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) [2025-03-17 19:40:38,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:40:38,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-17 19:40:38,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:40:47,125 INFO L124 PetriNetUnfolderBase]: 83946/166654 cut-off events. [2025-03-17 19:40:47,126 INFO L125 PetriNetUnfolderBase]: For 6255/6255 co-relation queries the response was YES. [2025-03-17 19:40:47,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281768 conditions, 166654 events. 83946/166654 cut-off events. For 6255/6255 co-relation queries the response was YES. Maximal size of possible extension queue 7010. Compared 2045884 event pairs, 54236 based on Foata normal form. 988/137100 useless extension candidates. Maximal degree in co-relation 281545. Up to 54783 conditions per place.