./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 798a7b37 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-?-798a7b3-m [2025-03-04 15:23:48,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 15:23:48,132 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-04 15:23:48,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 15:23:48,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 15:23:48,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 15:23:48,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 15:23:48,153 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 15:23:48,153 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 15:23:48,153 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 15:23:48,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 15:23:48,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 15:23:48,153 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 15:23:48,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 15:23:48,154 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 15:23:48,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 15:23:48,155 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 15:23:48,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:48,156 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 15:23:48,156 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 15:23:48,156 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 [2025-03-04 15:23:48,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 15:23:48,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 15:23:48,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 15:23:48,394 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 15:23:48,395 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 15:23:48,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-04 15:23:49,544 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09c04bf1/ad30b4c4a97f4188baf7f8525cb97594/FLAGae36f0fe3 [2025-03-04 15:23:49,797 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 15:23:49,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-array-int-subst.wvr.c [2025-03-04 15:23:49,807 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09c04bf1/ad30b4c4a97f4188baf7f8525cb97594/FLAGae36f0fe3 [2025-03-04 15:23:50,128 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f09c04bf1/ad30b4c4a97f4188baf7f8525cb97594 [2025-03-04 15:23:50,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 15:23:50,131 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 15:23:50,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:50,132 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 15:23:50,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 15:23:50,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598c6271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50, skipping insertion in model container [2025-03-04 15:23:50,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 15:23:50,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:50,279 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 15:23:50,297 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 15:23:50,308 INFO L204 MainTranslator]: Completed translation [2025-03-04 15:23:50,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50 WrapperNode [2025-03-04 15:23:50,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 15:23:50,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:50,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 15:23:50,310 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 15:23:50,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,347 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 15, calls inlined = 23, statements flattened = 318 [2025-03-04 15:23:50,350 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 15:23:50,351 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 15:23:50,351 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 15:23:50,351 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 15:23:50,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,364 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,384 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]. [2025-03-04 15:23:50,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,385 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,399 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,405 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,405 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,407 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 15:23:50,412 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 15:23:50,412 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 15:23:50,412 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 15:23:50,413 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (1/1) ... [2025-03-04 15:23:50,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 15:23:50,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:50,443 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) [2025-03-04 15:23:50,446 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 [2025-03-04 15:23:50,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-04 15:23:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-04 15:23:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-04 15:23:50,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-04 15:23:50,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-04 15:23:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 15:23:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 15:23:50,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 15:23:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-04 15:23:50,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-04 15:23:50,468 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 15:23:50,558 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 15:23:50,560 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 15:23:50,999 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 15:23:50,999 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 15:23:51,218 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 15:23:51,218 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 15:23:51,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:51 BoogieIcfgContainer [2025-03-04 15:23:51,219 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 15:23:51,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 15:23:51,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 15:23:51,223 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 15:23:51,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 03:23:50" (1/3) ... [2025-03-04 15:23:51,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc12fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:51, skipping insertion in model container [2025-03-04 15:23:51,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 03:23:50" (2/3) ... [2025-03-04 15:23:51,224 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc12fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 03:23:51, skipping insertion in model container [2025-03-04 15:23:51,224 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 03:23:51" (3/3) ... [2025-03-04 15:23:51,226 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-array-int-subst.wvr.c [2025-03-04 15:23:51,238 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 15:23:51,239 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. [2025-03-04 15:23:51,240 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 15:23:51,309 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-04 15:23:51,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 128 transitions, 277 flow [2025-03-04 15:23:51,381 INFO L124 PetriNetUnfolderBase]: 15/125 cut-off events. [2025-03-04 15:23:51,382 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-04 15:23:51,386 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 493 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. [2025-03-04 15:23:51,387 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 128 transitions, 277 flow [2025-03-04 15:23:51,391 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 118 places, 123 transitions, 261 flow [2025-03-04 15:23:51,397 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 15:23:51,407 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;@3904b8c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 15:23:51,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2025-03-04 15:23:51,412 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 15:23:51,412 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-04 15:23:51,412 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 15:23:51,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:51,413 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-04 15:23:51,413 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:51,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:51,418 INFO L85 PathProgramCache]: Analyzing trace with hash 913405, now seen corresponding path program 1 times [2025-03-04 15:23:51,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:51,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366181753] [2025-03-04 15:23:51,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:51,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-04 15:23:51,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-04 15:23:51,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:51,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:51,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:51,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:51,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366181753] [2025-03-04 15:23:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366181753] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:51,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:51,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 15:23:51,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863764471] [2025-03-04 15:23:51,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:51,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 15:23:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:51,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 15:23:51,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-04 15:23:51,676 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:51,680 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) [2025-03-04 15:23:51,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:51,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:51,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:53,185 INFO L124 PetriNetUnfolderBase]: 9698/20025 cut-off events. [2025-03-04 15:23:53,185 INFO L125 PetriNetUnfolderBase]: For 424/424 co-relation queries the response was YES. [2025-03-04 15:23:53,230 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 194447 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. [2025-03-04 15:23:53,330 INFO L140 encePairwiseOnDemand]: 112/128 looper letters, 59 selfloop transitions, 10 changer transitions 0/132 dead transitions. [2025-03-04 15:23:53,330 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 132 transitions, 417 flow [2025-03-04 15:23:53,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 15:23:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-04 15:23:53,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2025-03-04 15:23:53,346 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.662109375 [2025-03-04 15:23:53,348 INFO L175 Difference]: Start difference. First operand has 118 places, 123 transitions, 261 flow. Second operand 4 states and 339 transitions. [2025-03-04 15:23:53,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 132 transitions, 417 flow [2025-03-04 15:23:53,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 132 transitions, 408 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:53,361 INFO L231 Difference]: Finished difference. Result has 119 places, 132 transitions, 340 flow [2025-03-04 15:23:53,363 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} [2025-03-04 15:23:53,366 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 1 predicate places. [2025-03-04 15:23:53,367 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 132 transitions, 340 flow [2025-03-04 15:23:53,367 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) [2025-03-04 15:23:53,367 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:53,367 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-04 15:23:53,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 15:23:53,368 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:53,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:53,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1442216717, now seen corresponding path program 1 times [2025-03-04 15:23:53,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:53,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304927694] [2025-03-04 15:23:53,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:53,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:53,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:53,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:53,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:53,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:53,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:53,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:53,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304927694] [2025-03-04 15:23:53,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304927694] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:53,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643770233] [2025-03-04 15:23:53,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:53,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:53,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:53,490 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) [2025-03-04 15:23:53,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 15:23:53,547 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-04 15:23:53,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-04 15:23:53,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:53,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:53,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:53,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:53,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 15:23:53,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643770233] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:53,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 15:23:53,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-04 15:23:53,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798185812] [2025-03-04 15:23:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:53,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 15:23:53,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:53,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 15:23:53,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-04 15:23:53,625 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:53,626 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) [2025-03-04 15:23:53,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:53,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:53,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:54,866 INFO L124 PetriNetUnfolderBase]: 9698/20022 cut-off events. [2025-03-04 15:23:54,867 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2025-03-04 15:23:55,015 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 194367 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. [2025-03-04 15:23:55,076 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 49 selfloop transitions, 17 changer transitions 0/129 dead transitions. [2025-03-04 15:23:55,077 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 129 transitions, 460 flow [2025-03-04 15:23:55,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 15:23:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 15:23:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 465 transitions. [2025-03-04 15:23:55,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.60546875 [2025-03-04 15:23:55,082 INFO L175 Difference]: Start difference. First operand has 119 places, 132 transitions, 340 flow. Second operand 6 states and 465 transitions. [2025-03-04 15:23:55,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 129 transitions, 460 flow [2025-03-04 15:23:55,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 129 transitions, 460 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 15:23:55,084 INFO L231 Difference]: Finished difference. Result has 121 places, 129 transitions, 362 flow [2025-03-04 15:23:55,084 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} [2025-03-04 15:23:55,085 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 3 predicate places. [2025-03-04 15:23:55,085 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 129 transitions, 362 flow [2025-03-04 15:23:55,085 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) [2025-03-04 15:23:55,085 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:55,085 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:23:55,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-04 15:23:55,291 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 [2025-03-04 15:23:55,291 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:55,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:55,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1787702729, now seen corresponding path program 1 times [2025-03-04 15:23:55,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:55,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856576161] [2025-03-04 15:23:55,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:55,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:55,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:55,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:55,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:55,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:55,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:55,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:55,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856576161] [2025-03-04 15:23:55,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856576161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:23:55,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:23:55,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:23:55,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191572203] [2025-03-04 15:23:55,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:23:55,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:23:55,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:55,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:23:55,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:23:55,499 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:23:55,500 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) [2025-03-04 15:23:55,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:55,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:23:55,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:57,483 INFO L124 PetriNetUnfolderBase]: 21324/42780 cut-off events. [2025-03-04 15:23:57,483 INFO L125 PetriNetUnfolderBase]: For 239/239 co-relation queries the response was YES. [2025-03-04 15:23:57,570 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 448909 event pairs, 14052 based on Foata normal form. 241/34687 useless extension candidates. Maximal degree in co-relation 35730. Up to 14012 conditions per place. [2025-03-04 15:23:57,759 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 110 selfloop transitions, 6 changer transitions 0/180 dead transitions. [2025-03-04 15:23:57,759 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 180 transitions, 732 flow [2025-03-04 15:23:57,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:23:57,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:23:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 458 transitions. [2025-03-04 15:23:57,761 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.715625 [2025-03-04 15:23:57,761 INFO L175 Difference]: Start difference. First operand has 121 places, 129 transitions, 362 flow. Second operand 5 states and 458 transitions. [2025-03-04 15:23:57,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 180 transitions, 732 flow [2025-03-04 15:23:57,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 180 transitions, 680 flow, removed 6 selfloop flow, removed 5 redundant places. [2025-03-04 15:23:57,768 INFO L231 Difference]: Finished difference. Result has 122 places, 130 transitions, 349 flow [2025-03-04 15:23:57,768 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=349, PETRI_PLACES=122, PETRI_TRANSITIONS=130} [2025-03-04 15:23:57,769 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 4 predicate places. [2025-03-04 15:23:57,769 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 130 transitions, 349 flow [2025-03-04 15:23:57,770 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) [2025-03-04 15:23:57,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:23:57,770 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-04 15:23:57,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 15:23:57,770 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:23:57,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:23:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1759046043, now seen corresponding path program 1 times [2025-03-04 15:23:57,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:23:57,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237941672] [2025-03-04 15:23:57,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:57,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:23:57,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:57,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:57,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:57,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:23:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237941672] [2025-03-04 15:23:57,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237941672] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 15:23:57,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766233778] [2025-03-04 15:23:57,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:23:57,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 15:23:57,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 15:23:57,861 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) [2025-03-04 15:23:57,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 15:23:57,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 15:23:57,923 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 15:23:57,923 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:23:57,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:23:57,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-04 15:23:57,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 15:23:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,943 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-04 15:23:57,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:23:57,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766233778] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-04 15:23:57,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-04 15:23:57,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-04 15:23:57,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754819797] [2025-03-04 15:23:57,980 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-04 15:23:57,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-04 15:23:57,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:23:57,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-04 15:23:57,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-04 15:23:58,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 128 [2025-03-04 15:23:58,020 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 130 transitions, 349 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) [2025-03-04 15:23:58,020 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:23:58,020 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 128 [2025-03-04 15:23:58,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:23:59,916 INFO L124 PetriNetUnfolderBase]: 19405/40071 cut-off events. [2025-03-04 15:23:59,916 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2025-03-04 15:23:59,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66095 conditions, 40071 events. 19405/40071 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 1829. Compared 428506 event pairs, 12800 based on Foata normal form. 12/32115 useless extension candidates. Maximal degree in co-relation 33104. Up to 25407 conditions per place. [2025-03-04 15:24:00,118 INFO L140 encePairwiseOnDemand]: 115/128 looper letters, 56 selfloop transitions, 37 changer transitions 0/157 dead transitions. [2025-03-04 15:24:00,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 157 transitions, 673 flow [2025-03-04 15:24:00,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 15:24:00,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 15:24:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 762 transitions. [2025-03-04 15:24:00,123 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5953125 [2025-03-04 15:24:00,123 INFO L175 Difference]: Start difference. First operand has 122 places, 130 transitions, 349 flow. Second operand 10 states and 762 transitions. [2025-03-04 15:24:00,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 157 transitions, 673 flow [2025-03-04 15:24:00,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 157 transitions, 670 flow, removed 1 selfloop flow, removed 1 redundant places. [2025-03-04 15:24:00,127 INFO L231 Difference]: Finished difference. Result has 133 places, 157 transitions, 608 flow [2025-03-04 15:24:00,127 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=346, 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=608, PETRI_PLACES=133, PETRI_TRANSITIONS=157} [2025-03-04 15:24:00,128 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 15 predicate places. [2025-03-04 15:24:00,128 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 157 transitions, 608 flow [2025-03-04 15:24:00,128 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) [2025-03-04 15:24:00,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:00,128 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:00,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-04 15:24:00,332 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 [2025-03-04 15:24:00,332 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:00,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:00,333 INFO L85 PathProgramCache]: Analyzing trace with hash -415789372, now seen corresponding path program 1 times [2025-03-04 15:24:00,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:00,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303335804] [2025-03-04 15:24:00,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:00,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 15:24:00,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 15:24:00,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:00,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:00,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:00,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303335804] [2025-03-04 15:24:00,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303335804] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:00,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:00,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:00,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964949400] [2025-03-04 15:24:00,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:00,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:00,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:00,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:00,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:00,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:00,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 157 transitions, 608 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) [2025-03-04 15:24:00,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:00,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:00,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:04,683 INFO L124 PetriNetUnfolderBase]: 41223/82566 cut-off events. [2025-03-04 15:24:04,683 INFO L125 PetriNetUnfolderBase]: For 3083/3083 co-relation queries the response was YES. [2025-03-04 15:24:04,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139033 conditions, 82566 events. 41223/82566 cut-off events. For 3083/3083 co-relation queries the response was YES. Maximal size of possible extension queue 3586. Compared 941195 event pairs, 27029 based on Foata normal form. 480/67743 useless extension candidates. Maximal degree in co-relation 138813. Up to 27327 conditions per place. [2025-03-04 15:24:05,159 INFO L140 encePairwiseOnDemand]: 119/128 looper letters, 159 selfloop transitions, 12 changer transitions 0/235 dead transitions. [2025-03-04 15:24:05,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 235 transitions, 1285 flow [2025-03-04 15:24:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 15:24:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 15:24:05,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 607 transitions. [2025-03-04 15:24:05,161 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6774553571428571 [2025-03-04 15:24:05,161 INFO L175 Difference]: Start difference. First operand has 133 places, 157 transitions, 608 flow. Second operand 7 states and 607 transitions. [2025-03-04 15:24:05,161 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 235 transitions, 1285 flow [2025-03-04 15:24:05,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 235 transitions, 1221 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-03-04 15:24:05,170 INFO L231 Difference]: Finished difference. Result has 142 places, 166 transitions, 693 flow [2025-03-04 15:24:05,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=571, 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=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=693, PETRI_PLACES=142, PETRI_TRANSITIONS=166} [2025-03-04 15:24:05,173 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 24 predicate places. [2025-03-04 15:24:05,173 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 166 transitions, 693 flow [2025-03-04 15:24:05,173 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) [2025-03-04 15:24:05,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:05,174 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:05,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 15:24:05,174 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:05,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash -5902596, now seen corresponding path program 1 times [2025-03-04 15:24:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:05,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404382438] [2025-03-04 15:24:05,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:05,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-04 15:24:05,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-04 15:24:05,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:05,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:05,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:05,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:05,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404382438] [2025-03-04 15:24:05,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404382438] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:05,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:05,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469545265] [2025-03-04 15:24:05,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:05,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:05,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:05,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:05,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:05,316 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:05,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 166 transitions, 693 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) [2025-03-04 15:24:05,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:05,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:05,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 15:24:14,670 INFO L124 PetriNetUnfolderBase]: 85672/171076 cut-off events. [2025-03-04 15:24:14,670 INFO L125 PetriNetUnfolderBase]: For 1099/1099 co-relation queries the response was YES. [2025-03-04 15:24:15,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285638 conditions, 171076 events. 85672/171076 cut-off events. For 1099/1099 co-relation queries the response was YES. Maximal size of possible extension queue 7169. Compared 2117764 event pairs, 56444 based on Foata normal form. 1004/138812 useless extension candidates. Maximal degree in co-relation 285420. Up to 56360 conditions per place. [2025-03-04 15:24:15,808 INFO L140 encePairwiseOnDemand]: 122/128 looper letters, 129 selfloop transitions, 16 changer transitions 0/211 dead transitions. [2025-03-04 15:24:15,808 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 211 transitions, 1079 flow [2025-03-04 15:24:15,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-04 15:24:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-04 15:24:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 455 transitions. [2025-03-04 15:24:15,959 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7109375 [2025-03-04 15:24:15,959 INFO L175 Difference]: Start difference. First operand has 142 places, 166 transitions, 693 flow. Second operand 5 states and 455 transitions. [2025-03-04 15:24:15,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 211 transitions, 1079 flow [2025-03-04 15:24:15,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 211 transitions, 1077 flow, removed 1 selfloop flow, removed 0 redundant places. [2025-03-04 15:24:15,963 INFO L231 Difference]: Finished difference. Result has 148 places, 167 transitions, 746 flow [2025-03-04 15:24:15,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=128, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=746, PETRI_PLACES=148, PETRI_TRANSITIONS=167} [2025-03-04 15:24:15,964 INFO L279 CegarLoopForPetriNet]: 118 programPoint places, 30 predicate places. [2025-03-04 15:24:15,964 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 167 transitions, 746 flow [2025-03-04 15:24:15,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2025-03-04 15:24:15,964 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 15:24:15,964 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 15:24:15,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 15:24:15,964 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2025-03-04 15:24:15,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 15:24:15,964 INFO L85 PathProgramCache]: Analyzing trace with hash -182979567, now seen corresponding path program 1 times [2025-03-04 15:24:15,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 15:24:15,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548025295] [2025-03-04 15:24:15,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 15:24:15,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 15:24:15,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 15:24:15,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 15:24:15,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 15:24:15,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 15:24:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 15:24:16,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 15:24:16,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548025295] [2025-03-04 15:24:16,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548025295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 15:24:16,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 15:24:16,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 15:24:16,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249682414] [2025-03-04 15:24:16,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 15:24:16,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 15:24:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 15:24:16,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 15:24:16,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 15:24:16,076 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 128 [2025-03-04 15:24:16,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 167 transitions, 746 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) [2025-03-04 15:24:16,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 15:24:16,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 128 [2025-03-04 15:24:16,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand