./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-nzb-file-symm.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-nzb-file-symm.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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:41:45,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:41:45,416 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:41:45,419 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:41:45,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:41:45,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:41:45,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:41:45,436 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:41:45,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:41:45,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:41:45,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:41:45,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:41:45,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:41:45,439 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:41:45,440 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:41:45,440 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:41:45,440 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:41:45,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:41:45,441 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 -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2025-03-17 19:41:45,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:41:45,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:41:45,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:41:45,681 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:41:45,681 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:41:45,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-03-17 19:41:46,794 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d1824dd/9bd4ec1e0ef245abb7e1e49eaf11d479/FLAGbcd713365 [2025-03-17 19:41:47,022 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:41:47,022 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2025-03-17 19:41:47,028 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d1824dd/9bd4ec1e0ef245abb7e1e49eaf11d479/FLAGbcd713365 [2025-03-17 19:41:47,368 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97d1824dd/9bd4ec1e0ef245abb7e1e49eaf11d479 [2025-03-17 19:41:47,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:41:47,371 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:41:47,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:41:47,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:41:47,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:41:47,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354d3774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47, skipping insertion in model container [2025-03-17 19:41:47,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:41:47,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:41:47,518 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:41:47,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:41:47,564 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:41:47,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47 WrapperNode [2025-03-17 19:41:47,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:41:47,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:41:47,566 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:41:47,566 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:41:47,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,621 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 491 [2025-03-17 19:41:47,621 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:41:47,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:41:47,622 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:41:47,622 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:41:47,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,637 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,654 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [18, 2]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 2 writes are split as follows [2, 0]. [2025-03-17 19:41:47,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,655 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,668 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,673 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,676 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:41:47,677 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:41:47,677 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:41:47,677 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:41:47,678 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (1/1) ... [2025-03-17 19:41:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:41:47,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:47,727 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 19:41:47,730 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 19:41:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:41:47,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:41:47,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:41:47,750 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:41:47,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:41:47,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:41:47,751 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 19:41:47,846 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:41:47,847 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:41:48,420 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:41:48,420 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:41:48,752 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:41:48,753 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:41:48,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:48 BoogieIcfgContainer [2025-03-17 19:41:48,753 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:41:48,754 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:41:48,754 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:41:48,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:41:48,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:41:47" (1/3) ... [2025-03-17 19:41:48,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c095b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:41:48, skipping insertion in model container [2025-03-17 19:41:48,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:41:47" (2/3) ... [2025-03-17 19:41:48,759 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c095b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:41:48, skipping insertion in model container [2025-03-17 19:41:48,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:48" (3/3) ... [2025-03-17 19:41:48,761 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2025-03-17 19:41:48,774 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:41:48,776 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-nzb-file-symm.wvr.c that has 3 procedures, 144 locations, 1 initial locations, 4 loop locations, and 42 error locations. [2025-03-17 19:41:48,776 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:41:48,872 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:41:48,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 169 transitions, 352 flow [2025-03-17 19:41:48,952 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2025-03-17 19:41:48,955 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 19:41:48,961 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 26/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 864 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2025-03-17 19:41:48,962 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 169 transitions, 352 flow [2025-03-17 19:41:48,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 166 transitions, 344 flow [2025-03-17 19:41:48,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:41:48,987 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;@6f7e1467, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:41:48,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2025-03-17 19:41:48,992 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:41:48,993 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-17 19:41:48,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:41:48,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:48,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:41:48,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:48,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:48,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1353654, now seen corresponding path program 1 times [2025-03-17 19:41:49,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:49,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597227413] [2025-03-17 19:41:49,005 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:49,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:49,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:41:49,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:41:49,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:49,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:49,238 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 19:41:49,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:49,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597227413] [2025-03-17 19:41:49,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597227413] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:49,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:49,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:49,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945810438] [2025-03-17 19:41:49,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:49,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:49,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:49,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:49,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:49,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:49,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 19:41:49,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:49,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:49,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:50,057 INFO L124 PetriNetUnfolderBase]: 2890/6519 cut-off events. [2025-03-17 19:41:50,057 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2025-03-17 19:41:50,067 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 6519 events. 2890/6519 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 58853 event pairs, 1812 based on Foata normal form. 4/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4183 conditions per place. [2025-03-17 19:41:50,096 INFO L140 encePairwiseOnDemand]: 154/169 looper letters, 79 selfloop transitions, 7 changer transitions 2/168 dead transitions. [2025-03-17 19:41:50,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 522 flow [2025-03-17 19:41:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:50,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2025-03-17 19:41:50,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2025-03-17 19:41:50,109 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 344 flow. Second operand 4 states and 427 transitions. [2025-03-17 19:41:50,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 522 flow [2025-03-17 19:41:50,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:50,120 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 383 flow [2025-03-17 19:41:50,122 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2025-03-17 19:41:50,124 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2025-03-17 19:41:50,124 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 383 flow [2025-03-17 19:41:50,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 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 19:41:50,125 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:50,125 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 19:41:50,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:41:50,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:50,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:50,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1673241867, now seen corresponding path program 1 times [2025-03-17 19:41:50,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:50,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336573381] [2025-03-17 19:41:50,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:50,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:41:50,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:41:50,154 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:50,154 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:50,269 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 19:41:50,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:50,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336573381] [2025-03-17 19:41:50,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336573381] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:41:50,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737484411] [2025-03-17 19:41:50,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:50,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:50,272 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 19:41:50,274 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 19:41:50,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:41:50,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:41:50,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:50,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:50,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:41:50,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:41:50,393 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 19:41:50,393 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:41:50,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737484411] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:50,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:41:50,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:41:50,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136793890] [2025-03-17 19:41:50,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:50,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:41:50,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:50,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:41:50,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:41:50,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:50,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 19:41:50,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:50,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:50,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:50,941 INFO L124 PetriNetUnfolderBase]: 2890/6515 cut-off events. [2025-03-17 19:41:50,941 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2025-03-17 19:41:50,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10750 conditions, 6515 events. 2890/6515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 58809 event pairs, 1812 based on Foata normal form. 2/5186 useless extension candidates. Maximal degree in co-relation 10700. Up to 4172 conditions per place. [2025-03-17 19:41:50,966 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 72 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2025-03-17 19:41:50,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 543 flow [2025-03-17 19:41:50,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:41:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:41:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2025-03-17 19:41:50,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5759368836291914 [2025-03-17 19:41:50,971 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 383 flow. Second operand 6 states and 584 transitions. [2025-03-17 19:41:50,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 543 flow [2025-03-17 19:41:50,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 164 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:41:50,975 INFO L231 Difference]: Finished difference. Result has 148 places, 164 transitions, 399 flow [2025-03-17 19:41:50,976 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=148, PETRI_TRANSITIONS=164} [2025-03-17 19:41:50,977 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2025-03-17 19:41:50,978 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 164 transitions, 399 flow [2025-03-17 19:41:50,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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 19:41:50,979 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:50,979 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:41:50,986 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 19:41:51,183 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 19:41:51,183 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:51,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:51,184 INFO L85 PathProgramCache]: Analyzing trace with hash 330891572, now seen corresponding path program 1 times [2025-03-17 19:41:51,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:51,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16295309] [2025-03-17 19:41:51,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:51,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:51,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:41:51,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:41:51,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:51,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:51,303 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 19:41:51,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:51,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16295309] [2025-03-17 19:41:51,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16295309] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:41:51,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115970325] [2025-03-17 19:41:51,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:51,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:51,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:51,306 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 19:41:51,308 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 19:41:51,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:41:51,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:41:51,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:51,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:51,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:41:51,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:41:51,410 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 19:41:51,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:41:51,449 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 19:41:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115970325] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:41:51,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:41:51,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 19:41:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769289745] [2025-03-17 19:41:51,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:41:51,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 19:41:51,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:51,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 19:41:51,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:41:51,475 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:51,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 164 transitions, 399 flow. Second operand has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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 19:41:51,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:51,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:51,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:52,022 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2025-03-17 19:41:52,022 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-03-17 19:41:52,030 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 468. Compared 59036 event pairs, 1812 based on Foata normal form. 6/5213 useless extension candidates. Maximal degree in co-relation 10702. Up to 4183 conditions per place. [2025-03-17 19:41:52,053 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 77 selfloop transitions, 25 changer transitions 0/182 dead transitions. [2025-03-17 19:41:52,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 717 flow [2025-03-17 19:41:52,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:41:52,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:41:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 938 transitions. [2025-03-17 19:41:52,089 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5550295857988166 [2025-03-17 19:41:52,089 INFO L175 Difference]: Start difference. First operand has 148 places, 164 transitions, 399 flow. Second operand 10 states and 938 transitions. [2025-03-17 19:41:52,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 717 flow [2025-03-17 19:41:52,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 182 transitions, 659 flow, removed 12 selfloop flow, removed 5 redundant places. [2025-03-17 19:41:52,092 INFO L231 Difference]: Finished difference. Result has 155 places, 182 transitions, 539 flow [2025-03-17 19:41:52,093 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=155, PETRI_TRANSITIONS=182} [2025-03-17 19:41:52,093 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2025-03-17 19:41:52,093 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 182 transitions, 539 flow [2025-03-17 19:41:52,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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 19:41:52,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:52,094 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:52,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 19:41:52,295 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,SelfDestructingSolverStorable2 [2025-03-17 19:41:52,296 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:52,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:52,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2053197313, now seen corresponding path program 1 times [2025-03-17 19:41:52,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:52,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223214604] [2025-03-17 19:41:52,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:52,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:52,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:41:52,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:41:52,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:52,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:52,361 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 19:41:52,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:52,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223214604] [2025-03-17 19:41:52,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223214604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:52,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:52,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:52,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288334547] [2025-03-17 19:41:52,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:52,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:41:52,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:52,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:41:52,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:41:52,370 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:52,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 182 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 19:41:52,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:52,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:52,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:53,154 INFO L124 PetriNetUnfolderBase]: 5153/10831 cut-off events. [2025-03-17 19:41:53,154 INFO L125 PetriNetUnfolderBase]: For 93/93 co-relation queries the response was YES. [2025-03-17 19:41:53,168 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18528 conditions, 10831 events. 5153/10831 cut-off events. For 93/93 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 96025 event pairs, 2276 based on Foata normal form. 112/9071 useless extension candidates. Maximal degree in co-relation 18461. Up to 4873 conditions per place. [2025-03-17 19:41:53,198 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 158 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2025-03-17 19:41:53,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 238 transitions, 973 flow [2025-03-17 19:41:53,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:41:53,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:41:53,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2025-03-17 19:41:53,200 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2025-03-17 19:41:53,200 INFO L175 Difference]: Start difference. First operand has 155 places, 182 transitions, 539 flow. Second operand 3 states and 389 transitions. [2025-03-17 19:41:53,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 238 transitions, 973 flow [2025-03-17 19:41:53,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 238 transitions, 949 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-03-17 19:41:53,204 INFO L231 Difference]: Finished difference. Result has 156 places, 183 transitions, 533 flow [2025-03-17 19:41:53,204 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=156, PETRI_TRANSITIONS=183} [2025-03-17 19:41:53,204 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 9 predicate places. [2025-03-17 19:41:53,204 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 183 transitions, 533 flow [2025-03-17 19:41:53,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 19:41:53,205 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:53,205 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:53,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:41:53,205 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:53,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:53,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2052241951, now seen corresponding path program 1 times [2025-03-17 19:41:53,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:53,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026661324] [2025-03-17 19:41:53,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:53,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:53,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:41:53,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:41:53,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:53,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:53,293 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 19:41:53,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:53,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026661324] [2025-03-17 19:41:53,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026661324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:53,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:53,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:41:53,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448625056] [2025-03-17 19:41:53,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:53,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:53,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:53,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:53,321 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:41:53,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 183 transitions, 533 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 19:41:53,322 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:53,322 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:41:53,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:54,082 INFO L124 PetriNetUnfolderBase]: 7104/14899 cut-off events. [2025-03-17 19:41:54,082 INFO L125 PetriNetUnfolderBase]: For 322/322 co-relation queries the response was YES. [2025-03-17 19:41:54,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25906 conditions, 14899 events. 7104/14899 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 678. Compared 137794 event pairs, 2894 based on Foata normal form. 336/12499 useless extension candidates. Maximal degree in co-relation 25840. Up to 6604 conditions per place. [2025-03-17 19:41:54,151 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 179 selfloop transitions, 10 changer transitions 0/259 dead transitions. [2025-03-17 19:41:54,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 259 transitions, 1065 flow [2025-03-17 19:41:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:54,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2025-03-17 19:41:54,154 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6952662721893491 [2025-03-17 19:41:54,155 INFO L175 Difference]: Start difference. First operand has 156 places, 183 transitions, 533 flow. Second operand 4 states and 470 transitions. [2025-03-17 19:41:54,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 259 transitions, 1065 flow [2025-03-17 19:41:54,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 259 transitions, 1063 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:41:54,161 INFO L231 Difference]: Finished difference. Result has 159 places, 187 transitions, 599 flow [2025-03-17 19:41:54,161 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=599, PETRI_PLACES=159, PETRI_TRANSITIONS=187} [2025-03-17 19:41:54,162 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 12 predicate places. [2025-03-17 19:41:54,162 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 187 transitions, 599 flow [2025-03-17 19:41:54,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 19:41:54,164 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:54,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:54,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:41:54,164 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:54,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash 805010323, now seen corresponding path program 1 times [2025-03-17 19:41:54,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:54,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176727021] [2025-03-17 19:41:54,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:54,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:54,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:41:54,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:41:54,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:54,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:54,251 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 19:41:54,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:54,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176727021] [2025-03-17 19:41:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176727021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:54,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576789945] [2025-03-17 19:41:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:54,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:41:54,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:54,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:41:54,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:41:54,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 169 [2025-03-17 19:41:54,253 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 187 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 19:41:54,253 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:54,253 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 169 [2025-03-17 19:41:54,253 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:54,851 INFO L124 PetriNetUnfolderBase]: 5451/12742 cut-off events. [2025-03-17 19:41:54,851 INFO L125 PetriNetUnfolderBase]: For 1974/2116 co-relation queries the response was YES. [2025-03-17 19:41:54,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22953 conditions, 12742 events. 5451/12742 cut-off events. For 1974/2116 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 124633 event pairs, 3559 based on Foata normal form. 81/10775 useless extension candidates. Maximal degree in co-relation 22885. Up to 7916 conditions per place. [2025-03-17 19:41:54,898 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 96 selfloop transitions, 7 changer transitions 0/185 dead transitions. [2025-03-17 19:41:54,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 185 transitions, 796 flow [2025-03-17 19:41:54,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:41:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:41:54,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2025-03-17 19:41:54,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6765285996055227 [2025-03-17 19:41:54,899 INFO L175 Difference]: Start difference. First operand has 159 places, 187 transitions, 599 flow. Second operand 3 states and 343 transitions. [2025-03-17 19:41:54,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 185 transitions, 796 flow [2025-03-17 19:41:54,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 185 transitions, 789 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:41:54,917 INFO L231 Difference]: Finished difference. Result has 160 places, 185 transitions, 597 flow [2025-03-17 19:41:54,917 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=597, PETRI_PLACES=160, PETRI_TRANSITIONS=185} [2025-03-17 19:41:54,918 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 13 predicate places. [2025-03-17 19:41:54,918 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 185 transitions, 597 flow [2025-03-17 19:41:54,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 19:41:54,918 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:54,918 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-17 19:41:54,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:41:54,919 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:54,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash -2084852695, now seen corresponding path program 2 times [2025-03-17 19:41:54,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:54,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289325654] [2025-03-17 19:41:54,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:41:54,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:54,927 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:41:54,933 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:41:54,933 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:41:54,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:54,966 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:41:54,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:54,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289325654] [2025-03-17 19:41:54,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289325654] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:41:54,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175213631] [2025-03-17 19:41:54,966 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:41:54,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:54,969 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:41:54,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 19:41:55,033 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:41:55,043 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:41:55,043 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:41:55,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:55,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:41:55,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:41:55,065 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:41:55,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:41:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 19:41:55,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175213631] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:41:55,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:41:55,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2025-03-17 19:41:55,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790066628] [2025-03-17 19:41:55,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:41:55,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:41:55,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:55,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:41:55,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:41:55,105 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:55,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 185 transitions, 597 flow. Second operand has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 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 19:41:55,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:55,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:55,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:55,841 INFO L124 PetriNetUnfolderBase]: 5451/12740 cut-off events. [2025-03-17 19:41:55,841 INFO L125 PetriNetUnfolderBase]: For 1982/2124 co-relation queries the response was YES. [2025-03-17 19:41:55,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22946 conditions, 12740 events. 5451/12740 cut-off events. For 1982/2124 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 124587 event pairs, 3559 based on Foata normal form. 81/10774 useless extension candidates. Maximal degree in co-relation 22887. Up to 7898 conditions per place. [2025-03-17 19:41:55,888 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 78 selfloop transitions, 25 changer transitions 0/183 dead transitions. [2025-03-17 19:41:55,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 183 transitions, 783 flow [2025-03-17 19:41:55,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:55,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:55,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 410 transitions. [2025-03-17 19:41:55,890 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.606508875739645 [2025-03-17 19:41:55,890 INFO L175 Difference]: Start difference. First operand has 160 places, 185 transitions, 597 flow. Second operand 4 states and 410 transitions. [2025-03-17 19:41:55,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 183 transitions, 783 flow [2025-03-17 19:41:55,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 183 transitions, 749 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-03-17 19:41:55,903 INFO L231 Difference]: Finished difference. Result has 155 places, 183 transitions, 593 flow [2025-03-17 19:41:55,903 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=593, PETRI_PLACES=155, PETRI_TRANSITIONS=183} [2025-03-17 19:41:55,903 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2025-03-17 19:41:55,904 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 183 transitions, 593 flow [2025-03-17 19:41:55,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.66666666666667) internal successors, (508), 6 states have internal predecessors, (508), 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 19:41:55,904 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:55,904 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:55,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 19:41:56,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:56,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:56,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:56,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1534582305, now seen corresponding path program 1 times [2025-03-17 19:41:56,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:56,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496262839] [2025-03-17 19:41:56,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:56,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:41:56,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:41:56,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:56,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:41:56,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496262839] [2025-03-17 19:41:56,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496262839] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:41:56,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225154346] [2025-03-17 19:41:56,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:56,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:56,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:56,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:41:56,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 19:41:56,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-03-17 19:41:56,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-03-17 19:41:56,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:56,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:56,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:41:56,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:41:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:41:56,349 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:41:56,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:41:56,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225154346] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:41:56,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:41:56,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 19:41:56,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374145361] [2025-03-17 19:41:56,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:41:56,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-17 19:41:56,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:56,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-17 19:41:56,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-03-17 19:41:56,404 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:56,405 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 183 transitions, 593 flow. Second operand has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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 19:41:56,405 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:56,405 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:56,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:57,162 INFO L124 PetriNetUnfolderBase]: 5447/12736 cut-off events. [2025-03-17 19:41:57,162 INFO L125 PetriNetUnfolderBase]: For 1980/2122 co-relation queries the response was YES. [2025-03-17 19:41:57,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22936 conditions, 12736 events. 5447/12736 cut-off events. For 1980/2122 co-relation queries the response was YES. Maximal size of possible extension queue 598. Compared 124356 event pairs, 3559 based on Foata normal form. 81/10769 useless extension candidates. Maximal degree in co-relation 22802. Up to 7902 conditions per place. [2025-03-17 19:41:57,206 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 21 changer transitions 0/179 dead transitions. [2025-03-17 19:41:57,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 179 transitions, 767 flow [2025-03-17 19:41:57,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:41:57,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:41:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 671 transitions. [2025-03-17 19:41:57,208 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5672020287404903 [2025-03-17 19:41:57,208 INFO L175 Difference]: Start difference. First operand has 155 places, 183 transitions, 593 flow. Second operand 7 states and 671 transitions. [2025-03-17 19:41:57,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 179 transitions, 767 flow [2025-03-17 19:41:57,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 179 transitions, 721 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:41:57,219 INFO L231 Difference]: Finished difference. Result has 158 places, 179 transitions, 565 flow [2025-03-17 19:41:57,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=565, PETRI_PLACES=158, PETRI_TRANSITIONS=179} [2025-03-17 19:41:57,220 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2025-03-17 19:41:57,220 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 179 transitions, 565 flow [2025-03-17 19:41:57,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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 19:41:57,221 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:57,221 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:57,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 19:41:57,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:57,425 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:57,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:57,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1400763231, now seen corresponding path program 2 times [2025-03-17 19:41:57,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:57,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967145356] [2025-03-17 19:41:57,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:41:57,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:57,435 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 29 statements into 2 equivalence classes. [2025-03-17 19:41:57,441 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 29 statements. [2025-03-17 19:41:57,442 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:41:57,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:57,483 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 19:41:57,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:57,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967145356] [2025-03-17 19:41:57,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967145356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:57,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:57,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:57,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899973526] [2025-03-17 19:41:57,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:57,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:57,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:57,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:57,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:57,510 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:41:57,511 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 179 transitions, 565 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 19:41:57,511 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:57,511 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:41:57,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:58,175 INFO L124 PetriNetUnfolderBase]: 6293/14328 cut-off events. [2025-03-17 19:41:58,176 INFO L125 PetriNetUnfolderBase]: For 2312/2354 co-relation queries the response was YES. [2025-03-17 19:41:58,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26251 conditions, 14328 events. 6293/14328 cut-off events. For 2312/2354 co-relation queries the response was YES. Maximal size of possible extension queue 646. Compared 138977 event pairs, 3226 based on Foata normal form. 42/12083 useless extension candidates. Maximal degree in co-relation 26122. Up to 7089 conditions per place. [2025-03-17 19:41:58,232 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 132 selfloop transitions, 7 changer transitions 0/215 dead transitions. [2025-03-17 19:41:58,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 215 transitions, 918 flow [2025-03-17 19:41:58,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:41:58,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:41:58,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2025-03-17 19:41:58,234 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6523668639053254 [2025-03-17 19:41:58,234 INFO L175 Difference]: Start difference. First operand has 158 places, 179 transitions, 565 flow. Second operand 4 states and 441 transitions. [2025-03-17 19:41:58,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 215 transitions, 918 flow [2025-03-17 19:41:58,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 215 transitions, 901 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:41:58,259 INFO L231 Difference]: Finished difference. Result has 157 places, 179 transitions, 572 flow [2025-03-17 19:41:58,260 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=572, PETRI_PLACES=157, PETRI_TRANSITIONS=179} [2025-03-17 19:41:58,260 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 10 predicate places. [2025-03-17 19:41:58,260 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 179 transitions, 572 flow [2025-03-17 19:41:58,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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 19:41:58,260 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:58,260 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:58,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-17 19:41:58,261 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:58,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:58,261 INFO L85 PathProgramCache]: Analyzing trace with hash -474016578, now seen corresponding path program 1 times [2025-03-17 19:41:58,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:58,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146597685] [2025-03-17 19:41:58,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:58,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 19:41:58,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 19:41:58,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:58,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:58,421 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 19:41:58,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:58,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146597685] [2025-03-17 19:41:58,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146597685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:41:58,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429983594] [2025-03-17 19:41:58,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:41:58,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:41:58,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:41:58,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:41:58,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 19:41:58,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-17 19:41:58,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-17 19:41:58,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:41:58,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:58,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 19:41:58,508 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:41:58,595 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 19:41:58,595 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:41:58,656 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 19:41:58,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429983594] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:41:58,657 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:41:58,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-03-17 19:41:58,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856040864] [2025-03-17 19:41:58,657 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:41:58,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 19:41:58,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:58,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 19:41:58,658 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2025-03-17 19:41:58,695 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:41:58,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 179 transitions, 572 flow. Second operand has 18 states, 18 states have (on average 84.55555555555556) internal successors, (1522), 18 states have internal predecessors, (1522), 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 19:41:58,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:58,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:41:58,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:41:59,565 INFO L124 PetriNetUnfolderBase]: 5757/13572 cut-off events. [2025-03-17 19:41:59,565 INFO L125 PetriNetUnfolderBase]: For 3814/3956 co-relation queries the response was YES. [2025-03-17 19:41:59,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25112 conditions, 13572 events. 5757/13572 cut-off events. For 3814/3956 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 134301 event pairs, 3813 based on Foata normal form. 81/11432 useless extension candidates. Maximal degree in co-relation 24985. Up to 8381 conditions per place. [2025-03-17 19:41:59,608 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 22 changer transitions 0/179 dead transitions. [2025-03-17 19:41:59,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 179 transitions, 777 flow [2025-03-17 19:41:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:41:59,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:41:59,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2025-03-17 19:41:59,611 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5438407746100054 [2025-03-17 19:41:59,611 INFO L175 Difference]: Start difference. First operand has 157 places, 179 transitions, 572 flow. Second operand 11 states and 1011 transitions. [2025-03-17 19:41:59,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 179 transitions, 777 flow [2025-03-17 19:41:59,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 179 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:41:59,641 INFO L231 Difference]: Finished difference. Result has 167 places, 179 transitions, 631 flow [2025-03-17 19:41:59,641 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=631, PETRI_PLACES=167, PETRI_TRANSITIONS=179} [2025-03-17 19:41:59,641 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 20 predicate places. [2025-03-17 19:41:59,641 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 179 transitions, 631 flow [2025-03-17 19:41:59,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 84.55555555555556) internal successors, (1522), 18 states have internal predecessors, (1522), 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 19:41:59,642 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:41:59,642 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:41:59,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 19:41:59,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-03-17 19:41:59,843 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:41:59,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:41:59,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1723832770, now seen corresponding path program 2 times [2025-03-17 19:41:59,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:41:59,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045149149] [2025-03-17 19:41:59,843 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:41:59,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:41:59,856 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 42 statements into 2 equivalence classes. [2025-03-17 19:41:59,862 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 12 of 42 statements. [2025-03-17 19:41:59,863 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:41:59,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:41:59,896 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:41:59,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:41:59,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045149149] [2025-03-17 19:41:59,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045149149] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:41:59,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:41:59,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:41:59,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510244440] [2025-03-17 19:41:59,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:41:59,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:41:59,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:41:59,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:41:59,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:41:59,916 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-03-17 19:41:59,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 179 transitions, 631 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 19:41:59,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:41:59,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-03-17 19:41:59,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:00,903 INFO L124 PetriNetUnfolderBase]: 6529/14592 cut-off events. [2025-03-17 19:42:00,903 INFO L125 PetriNetUnfolderBase]: For 4164/4206 co-relation queries the response was YES. [2025-03-17 19:42:00,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27644 conditions, 14592 events. 6529/14592 cut-off events. For 4164/4206 co-relation queries the response was YES. Maximal size of possible extension queue 652. Compared 139985 event pairs, 3522 based on Foata normal form. 98/12315 useless extension candidates. Maximal degree in co-relation 27487. Up to 7689 conditions per place. [2025-03-17 19:42:00,967 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 134 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2025-03-17 19:42:00,968 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 213 transitions, 980 flow [2025-03-17 19:42:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2025-03-17 19:42:00,969 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6390532544378699 [2025-03-17 19:42:00,969 INFO L175 Difference]: Start difference. First operand has 167 places, 179 transitions, 631 flow. Second operand 4 states and 432 transitions. [2025-03-17 19:42:00,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 213 transitions, 980 flow [2025-03-17 19:42:01,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 213 transitions, 948 flow, removed 0 selfloop flow, removed 8 redundant places. [2025-03-17 19:42:01,012 INFO L231 Difference]: Finished difference. Result has 161 places, 178 transitions, 609 flow [2025-03-17 19:42:01,012 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=609, PETRI_PLACES=161, PETRI_TRANSITIONS=178} [2025-03-17 19:42:01,012 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2025-03-17 19:42:01,012 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 178 transitions, 609 flow [2025-03-17 19:42:01,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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 19:42:01,012 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:01,012 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:01,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:42:01,013 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:01,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash -333292066, now seen corresponding path program 1 times [2025-03-17 19:42:01,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:01,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745682324] [2025-03-17 19:42:01,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:01,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:01,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 19:42:01,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 19:42:01,037 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:01,037 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:01,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:01,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745682324] [2025-03-17 19:42:01,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745682324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:01,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:01,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:42:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797164580] [2025-03-17 19:42:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:01,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:42:01,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:01,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:42:01,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:42:01,100 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:42:01,101 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 178 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 19:42:01,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:01,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:42:01,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:02,218 INFO L124 PetriNetUnfolderBase]: 9773/20944 cut-off events. [2025-03-17 19:42:02,218 INFO L125 PetriNetUnfolderBase]: For 6649/6966 co-relation queries the response was YES. [2025-03-17 19:42:02,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40083 conditions, 20944 events. 9773/20944 cut-off events. For 6649/6966 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 201059 event pairs, 4417 based on Foata normal form. 417/18414 useless extension candidates. Maximal degree in co-relation 39940. Up to 9507 conditions per place. [2025-03-17 19:42:02,312 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2025-03-17 19:42:02,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 238 transitions, 1120 flow [2025-03-17 19:42:02,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:42:02,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:42:02,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2025-03-17 19:42:02,314 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2025-03-17 19:42:02,314 INFO L175 Difference]: Start difference. First operand has 161 places, 178 transitions, 609 flow. Second operand 3 states and 387 transitions. [2025-03-17 19:42:02,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 238 transitions, 1120 flow [2025-03-17 19:42:02,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 238 transitions, 1100 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:42:02,351 INFO L231 Difference]: Finished difference. Result has 161 places, 179 transitions, 613 flow [2025-03-17 19:42:02,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=595, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=613, PETRI_PLACES=161, PETRI_TRANSITIONS=179} [2025-03-17 19:42:02,351 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 14 predicate places. [2025-03-17 19:42:02,352 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 179 transitions, 613 flow [2025-03-17 19:42:02,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 19:42:02,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:02,352 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:02,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:42:02,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:02,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:02,353 INFO L85 PathProgramCache]: Analyzing trace with hash -334308933, now seen corresponding path program 1 times [2025-03-17 19:42:02,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:02,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296684915] [2025-03-17 19:42:02,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:02,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:02,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-17 19:42:02,368 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-17 19:42:02,368 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:02,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:02,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:02,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296684915] [2025-03-17 19:42:02,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296684915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:02,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:02,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:02,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773235348] [2025-03-17 19:42:02,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:02,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:02,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:02,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:02,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:02,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:02,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 179 transitions, 613 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 19:42:02,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:02,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:02,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:04,053 INFO L124 PetriNetUnfolderBase]: 13708/28419 cut-off events. [2025-03-17 19:42:04,054 INFO L125 PetriNetUnfolderBase]: For 8409/8888 co-relation queries the response was YES. [2025-03-17 19:42:04,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55701 conditions, 28419 events. 13708/28419 cut-off events. For 8409/8888 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 277315 event pairs, 6038 based on Foata normal form. 949/25517 useless extension candidates. Maximal degree in co-relation 55558. Up to 13076 conditions per place. [2025-03-17 19:42:04,196 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 189 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2025-03-17 19:42:04,196 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 265 transitions, 1297 flow [2025-03-17 19:42:04,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:04,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:04,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2025-03-17 19:42:04,197 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2025-03-17 19:42:04,197 INFO L175 Difference]: Start difference. First operand has 161 places, 179 transitions, 613 flow. Second operand 4 states and 468 transitions. [2025-03-17 19:42:04,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 265 transitions, 1297 flow [2025-03-17 19:42:04,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 265 transitions, 1295 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:42:04,242 INFO L231 Difference]: Finished difference. Result has 164 places, 183 transitions, 679 flow [2025-03-17 19:42:04,243 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=607, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=679, PETRI_PLACES=164, PETRI_TRANSITIONS=183} [2025-03-17 19:42:04,243 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 17 predicate places. [2025-03-17 19:42:04,243 INFO L471 AbstractCegarLoop]: Abstraction has has 164 places, 183 transitions, 679 flow [2025-03-17 19:42:04,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 19:42:04,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:04,243 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:04,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-17 19:42:04,243 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:04,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:04,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1899207926, now seen corresponding path program 1 times [2025-03-17 19:42:04,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:04,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790467852] [2025-03-17 19:42:04,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:04,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:04,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 19:42:04,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 19:42:04,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:04,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:04,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:04,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790467852] [2025-03-17 19:42:04,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790467852] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:04,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:04,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:04,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475737671] [2025-03-17 19:42:04,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:04,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:42:04,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:04,382 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:42:04,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:42:04,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2025-03-17 19:42:04,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 183 transitions, 679 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 19:42:04,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:04,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2025-03-17 19:42:04,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:06,868 INFO L124 PetriNetUnfolderBase]: 15383/31484 cut-off events. [2025-03-17 19:42:06,869 INFO L125 PetriNetUnfolderBase]: For 10263/10838 co-relation queries the response was YES. [2025-03-17 19:42:06,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66381 conditions, 31484 events. 15383/31484 cut-off events. For 10263/10838 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 304750 event pairs, 6489 based on Foata normal form. 270/28927 useless extension candidates. Maximal degree in co-relation 66236. Up to 13772 conditions per place. [2025-03-17 19:42:07,040 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 184 selfloop transitions, 12 changer transitions 0/264 dead transitions. [2025-03-17 19:42:07,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 264 transitions, 1319 flow [2025-03-17 19:42:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:42:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:42:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2025-03-17 19:42:07,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2025-03-17 19:42:07,042 INFO L175 Difference]: Start difference. First operand has 164 places, 183 transitions, 679 flow. Second operand 5 states and 546 transitions. [2025-03-17 19:42:07,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 264 transitions, 1319 flow [2025-03-17 19:42:07,180 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 264 transitions, 1319 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:42:07,182 INFO L231 Difference]: Finished difference. Result has 169 places, 183 transitions, 725 flow [2025-03-17 19:42:07,182 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=677, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=725, PETRI_PLACES=169, PETRI_TRANSITIONS=183} [2025-03-17 19:42:07,183 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2025-03-17 19:42:07,183 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 183 transitions, 725 flow [2025-03-17 19:42:07,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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 19:42:07,183 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:07,183 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:07,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-17 19:42:07,183 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:07,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:07,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1899206933, now seen corresponding path program 1 times [2025-03-17 19:42:07,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:07,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845808878] [2025-03-17 19:42:07,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:07,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:07,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 19:42:07,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 19:42:07,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:07,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:07,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845808878] [2025-03-17 19:42:07,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845808878] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:07,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:07,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:07,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232450712] [2025-03-17 19:42:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:07,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:07,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:07,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:07,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:07,285 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:07,286 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 183 transitions, 725 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 19:42:07,286 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:07,286 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:07,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:09,108 INFO L124 PetriNetUnfolderBase]: 12974/28555 cut-off events. [2025-03-17 19:42:09,108 INFO L125 PetriNetUnfolderBase]: For 17131/17568 co-relation queries the response was YES. [2025-03-17 19:42:09,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62846 conditions, 28555 events. 12974/28555 cut-off events. For 17131/17568 co-relation queries the response was YES. Maximal size of possible extension queue 949. Compared 290878 event pairs, 5898 based on Foata normal form. 504/26622 useless extension candidates. Maximal degree in co-relation 62697. Up to 12676 conditions per place. [2025-03-17 19:42:09,300 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 186 selfloop transitions, 9 changer transitions 0/263 dead transitions. [2025-03-17 19:42:09,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 263 transitions, 1353 flow [2025-03-17 19:42:09,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:09,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2025-03-17 19:42:09,301 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6834319526627219 [2025-03-17 19:42:09,302 INFO L175 Difference]: Start difference. First operand has 169 places, 183 transitions, 725 flow. Second operand 4 states and 462 transitions. [2025-03-17 19:42:09,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 263 transitions, 1353 flow [2025-03-17 19:42:09,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 263 transitions, 1337 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:42:09,795 INFO L231 Difference]: Finished difference. Result has 169 places, 181 transitions, 715 flow [2025-03-17 19:42:09,795 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=715, PETRI_PLACES=169, PETRI_TRANSITIONS=181} [2025-03-17 19:42:09,796 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2025-03-17 19:42:09,796 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 181 transitions, 715 flow [2025-03-17 19:42:09,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 19:42:09,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:09,796 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:09,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-17 19:42:09,796 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:09,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:09,796 INFO L85 PathProgramCache]: Analyzing trace with hash -331032862, now seen corresponding path program 1 times [2025-03-17 19:42:09,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:09,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702320093] [2025-03-17 19:42:09,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:09,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:09,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 19:42:09,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 19:42:09,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:09,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:09,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:09,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702320093] [2025-03-17 19:42:09,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702320093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:09,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:09,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:42:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518143070] [2025-03-17 19:42:09,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:09,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:09,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:09,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:09,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:09,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:09,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 181 transitions, 715 flow. Second operand has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 19:42:09,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:09,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:09,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:11,794 INFO L124 PetriNetUnfolderBase]: 11351/26120 cut-off events. [2025-03-17 19:42:11,794 INFO L125 PetriNetUnfolderBase]: For 16409/16809 co-relation queries the response was YES. [2025-03-17 19:42:11,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57348 conditions, 26120 events. 11351/26120 cut-off events. For 16409/16809 co-relation queries the response was YES. Maximal size of possible extension queue 919. Compared 272619 event pairs, 5059 based on Foata normal form. 455/24585 useless extension candidates. Maximal degree in co-relation 57200. Up to 11088 conditions per place. [2025-03-17 19:42:11,953 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 141 selfloop transitions, 7 changer transitions 0/222 dead transitions. [2025-03-17 19:42:11,954 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 222 transitions, 1145 flow [2025-03-17 19:42:11,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:11,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:11,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2025-03-17 19:42:11,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6494082840236687 [2025-03-17 19:42:11,955 INFO L175 Difference]: Start difference. First operand has 169 places, 181 transitions, 715 flow. Second operand 4 states and 439 transitions. [2025-03-17 19:42:11,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 222 transitions, 1145 flow [2025-03-17 19:42:12,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 222 transitions, 1131 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:12,311 INFO L231 Difference]: Finished difference. Result has 170 places, 181 transitions, 732 flow [2025-03-17 19:42:12,311 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=700, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=732, PETRI_PLACES=170, PETRI_TRANSITIONS=181} [2025-03-17 19:42:12,311 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 23 predicate places. [2025-03-17 19:42:12,311 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 181 transitions, 732 flow [2025-03-17 19:42:12,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.75) internal successors, (339), 4 states have internal predecessors, (339), 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 19:42:12,312 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:12,312 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:12,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-03-17 19:42:12,312 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:12,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:12,313 INFO L85 PathProgramCache]: Analyzing trace with hash -293690775, now seen corresponding path program 1 times [2025-03-17 19:42:12,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670762320] [2025-03-17 19:42:12,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:12,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:12,329 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 19:42:12,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 19:42:12,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:12,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:12,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670762320] [2025-03-17 19:42:12,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670762320] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:12,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:12,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:12,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807017554] [2025-03-17 19:42:12,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:12,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:12,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:12,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:12,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:12,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:12,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 181 transitions, 732 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 19:42:12,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:12,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:12,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:14,313 INFO L124 PetriNetUnfolderBase]: 12140/25802 cut-off events. [2025-03-17 19:42:14,313 INFO L125 PetriNetUnfolderBase]: For 19824/20416 co-relation queries the response was YES. [2025-03-17 19:42:14,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58951 conditions, 25802 events. 12140/25802 cut-off events. For 19824/20416 co-relation queries the response was YES. Maximal size of possible extension queue 856. Compared 254665 event pairs, 5769 based on Foata normal form. 559/24843 useless extension candidates. Maximal degree in co-relation 58801. Up to 11820 conditions per place. [2025-03-17 19:42:14,509 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 212 selfloop transitions, 3 changer transitions 0/284 dead transitions. [2025-03-17 19:42:14,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 284 transitions, 1503 flow [2025-03-17 19:42:14,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:14,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 499 transitions. [2025-03-17 19:42:14,510 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7381656804733728 [2025-03-17 19:42:14,511 INFO L175 Difference]: Start difference. First operand has 170 places, 181 transitions, 732 flow. Second operand 4 states and 499 transitions. [2025-03-17 19:42:14,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 284 transitions, 1503 flow [2025-03-17 19:42:14,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 284 transitions, 1491 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:14,849 INFO L231 Difference]: Finished difference. Result has 173 places, 182 transitions, 742 flow [2025-03-17 19:42:14,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=724, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=742, PETRI_PLACES=173, PETRI_TRANSITIONS=182} [2025-03-17 19:42:14,850 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2025-03-17 19:42:14,850 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 182 transitions, 742 flow [2025-03-17 19:42:14,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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 19:42:14,850 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:14,850 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:14,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 19:42:14,850 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:14,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:14,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1773640902, now seen corresponding path program 1 times [2025-03-17 19:42:14,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:14,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945096073] [2025-03-17 19:42:14,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:14,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:14,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 19:42:14,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 19:42:14,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:14,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:14,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945096073] [2025-03-17 19:42:14,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945096073] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:14,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:14,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:42:14,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096670846] [2025-03-17 19:42:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:14,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:14,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:14,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:14,949 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:14,949 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 182 transitions, 742 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 19:42:14,949 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:14,949 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:14,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:17,161 INFO L124 PetriNetUnfolderBase]: 12571/28304 cut-off events. [2025-03-17 19:42:17,161 INFO L125 PetriNetUnfolderBase]: For 24306/24893 co-relation queries the response was YES. [2025-03-17 19:42:17,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62149 conditions, 28304 events. 12571/28304 cut-off events. For 24306/24893 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 293523 event pairs, 6834 based on Foata normal form. 305/25851 useless extension candidates. Maximal degree in co-relation 61998. Up to 14441 conditions per place. [2025-03-17 19:42:17,371 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 147 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2025-03-17 19:42:17,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 225 transitions, 1248 flow [2025-03-17 19:42:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:17,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2025-03-17 19:42:17,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.650887573964497 [2025-03-17 19:42:17,377 INFO L175 Difference]: Start difference. First operand has 173 places, 182 transitions, 742 flow. Second operand 4 states and 440 transitions. [2025-03-17 19:42:17,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 225 transitions, 1248 flow [2025-03-17 19:42:17,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 225 transitions, 1240 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:17,730 INFO L231 Difference]: Finished difference. Result has 174 places, 182 transitions, 762 flow [2025-03-17 19:42:17,730 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=762, PETRI_PLACES=174, PETRI_TRANSITIONS=182} [2025-03-17 19:42:17,730 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 27 predicate places. [2025-03-17 19:42:17,730 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 182 transitions, 762 flow [2025-03-17 19:42:17,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 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 19:42:17,731 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:17,731 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:17,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-03-17 19:42:17,731 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:17,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:17,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1254097831, now seen corresponding path program 1 times [2025-03-17 19:42:17,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:17,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241434229] [2025-03-17 19:42:17,732 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:17,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:17,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 19:42:17,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 19:42:17,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:17,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:17,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:17,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241434229] [2025-03-17 19:42:17,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241434229] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:17,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:17,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:42:17,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849405590] [2025-03-17 19:42:17,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:17,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:42:17,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:17,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:42:17,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:42:17,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2025-03-17 19:42:17,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 182 transitions, 762 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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 19:42:17,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:17,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2025-03-17 19:42:17,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:20,156 INFO L124 PetriNetUnfolderBase]: 16297/33582 cut-off events. [2025-03-17 19:42:20,156 INFO L125 PetriNetUnfolderBase]: For 28562/29269 co-relation queries the response was YES. [2025-03-17 19:42:20,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77340 conditions, 33582 events. 16297/33582 cut-off events. For 28562/29269 co-relation queries the response was YES. Maximal size of possible extension queue 1023. Compared 329242 event pairs, 7609 based on Foata normal form. 938/31697 useless extension candidates. Maximal degree in co-relation 77187. Up to 15998 conditions per place. [2025-03-17 19:42:20,409 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 311 selfloop transitions, 14 changer transitions 0/389 dead transitions. [2025-03-17 19:42:20,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 389 transitions, 2138 flow [2025-03-17 19:42:20,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:42:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:42:20,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 834 transitions. [2025-03-17 19:42:20,411 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6168639053254438 [2025-03-17 19:42:20,411 INFO L175 Difference]: Start difference. First operand has 174 places, 182 transitions, 762 flow. Second operand 8 states and 834 transitions. [2025-03-17 19:42:20,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 389 transitions, 2138 flow [2025-03-17 19:42:20,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 389 transitions, 2105 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:20,887 INFO L231 Difference]: Finished difference. Result has 182 places, 184 transitions, 814 flow [2025-03-17 19:42:20,887 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=814, PETRI_PLACES=182, PETRI_TRANSITIONS=184} [2025-03-17 19:42:20,888 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2025-03-17 19:42:20,888 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 184 transitions, 814 flow [2025-03-17 19:42:20,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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 19:42:20,888 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:20,888 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:20,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-03-17 19:42:20,888 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:20,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:20,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1672113504, now seen corresponding path program 1 times [2025-03-17 19:42:20,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:20,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640103391] [2025-03-17 19:42:20,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:20,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:20,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 19:42:20,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 19:42:20,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:20,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:20,954 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:20,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:20,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640103391] [2025-03-17 19:42:20,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640103391] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:20,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:20,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:42:20,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599591640] [2025-03-17 19:42:20,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:20,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:20,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:20,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:20,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-03-17 19:42:20,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 184 transitions, 814 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 19:42:20,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:20,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-03-17 19:42:20,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:22,729 INFO L124 PetriNetUnfolderBase]: 12184/27727 cut-off events. [2025-03-17 19:42:22,729 INFO L125 PetriNetUnfolderBase]: For 34131/34690 co-relation queries the response was YES. [2025-03-17 19:42:22,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67130 conditions, 27727 events. 12184/27727 cut-off events. For 34131/34690 co-relation queries the response was YES. Maximal size of possible extension queue 961. Compared 289301 event pairs, 5716 based on Foata normal form. 636/26653 useless extension candidates. Maximal degree in co-relation 66973. Up to 12463 conditions per place. [2025-03-17 19:42:22,959 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 147 selfloop transitions, 6 changer transitions 0/224 dead transitions. [2025-03-17 19:42:22,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 224 transitions, 1253 flow [2025-03-17 19:42:22,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:22,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 430 transitions. [2025-03-17 19:42:22,960 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.636094674556213 [2025-03-17 19:42:22,960 INFO L175 Difference]: Start difference. First operand has 182 places, 184 transitions, 814 flow. Second operand 4 states and 430 transitions. [2025-03-17 19:42:22,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 224 transitions, 1253 flow [2025-03-17 19:42:23,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 224 transitions, 1241 flow, removed 1 selfloop flow, removed 3 redundant places. [2025-03-17 19:42:23,627 INFO L231 Difference]: Finished difference. Result has 181 places, 183 transitions, 808 flow [2025-03-17 19:42:23,627 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=808, PETRI_PLACES=181, PETRI_TRANSITIONS=183} [2025-03-17 19:42:23,628 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2025-03-17 19:42:23,628 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 183 transitions, 808 flow [2025-03-17 19:42:23,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 19:42:23,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:23,628 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:23,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-17 19:42:23,628 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:23,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:23,628 INFO L85 PathProgramCache]: Analyzing trace with hash 851677574, now seen corresponding path program 1 times [2025-03-17 19:42:23,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:23,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422582053] [2025-03-17 19:42:23,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:23,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:23,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-17 19:42:23,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-17 19:42:23,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:23,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:23,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:23,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422582053] [2025-03-17 19:42:23,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422582053] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:23,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:23,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:42:23,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284244966] [2025-03-17 19:42:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:23,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:23,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:23,684 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:23,684 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:23,705 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-03-17 19:42:23,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 183 transitions, 808 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 19:42:23,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:23,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-03-17 19:42:23,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:25,581 INFO L124 PetriNetUnfolderBase]: 12967/28486 cut-off events. [2025-03-17 19:42:25,581 INFO L125 PetriNetUnfolderBase]: For 40100/41198 co-relation queries the response was YES. [2025-03-17 19:42:25,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68448 conditions, 28486 events. 12967/28486 cut-off events. For 40100/41198 co-relation queries the response was YES. Maximal size of possible extension queue 969. Compared 290018 event pairs, 7470 based on Foata normal form. 952/26824 useless extension candidates. Maximal degree in co-relation 68290. Up to 15629 conditions per place. [2025-03-17 19:42:25,737 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 153 selfloop transitions, 7 changer transitions 0/226 dead transitions. [2025-03-17 19:42:25,737 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 226 transitions, 1350 flow [2025-03-17 19:42:25,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:25,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:25,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2025-03-17 19:42:25,738 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6375739644970414 [2025-03-17 19:42:25,738 INFO L175 Difference]: Start difference. First operand has 181 places, 183 transitions, 808 flow. Second operand 4 states and 431 transitions. [2025-03-17 19:42:25,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 226 transitions, 1350 flow [2025-03-17 19:42:26,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 226 transitions, 1330 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:42:26,013 INFO L231 Difference]: Finished difference. Result has 180 places, 182 transitions, 806 flow [2025-03-17 19:42:26,014 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=806, PETRI_PLACES=180, PETRI_TRANSITIONS=182} [2025-03-17 19:42:26,014 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 33 predicate places. [2025-03-17 19:42:26,014 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 182 transitions, 806 flow [2025-03-17 19:42:26,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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 19:42:26,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:26,014 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:26,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-17 19:42:26,014 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:26,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:26,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1140586488, now seen corresponding path program 1 times [2025-03-17 19:42:26,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:26,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305676427] [2025-03-17 19:42:26,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:26,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:26,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:26,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:26,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:26,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:26,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:26,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305676427] [2025-03-17 19:42:26,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305676427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:26,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:26,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:26,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359773026] [2025-03-17 19:42:26,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:26,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:26,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:26,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:26,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:26,103 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:26,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 182 transitions, 806 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 19:42:26,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:26,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:26,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:27,894 INFO L124 PetriNetUnfolderBase]: 13872/29021 cut-off events. [2025-03-17 19:42:27,894 INFO L125 PetriNetUnfolderBase]: For 32368/32943 co-relation queries the response was YES. [2025-03-17 19:42:28,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70304 conditions, 29021 events. 13872/29021 cut-off events. For 32368/32943 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 284102 event pairs, 6352 based on Foata normal form. 761/27868 useless extension candidates. Maximal degree in co-relation 70146. Up to 13648 conditions per place. [2025-03-17 19:42:28,163 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 186 selfloop transitions, 10 changer transitions 0/262 dead transitions. [2025-03-17 19:42:28,163 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 262 transitions, 1478 flow [2025-03-17 19:42:28,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:28,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2025-03-17 19:42:28,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2025-03-17 19:42:28,164 INFO L175 Difference]: Start difference. First operand has 180 places, 182 transitions, 806 flow. Second operand 4 states and 456 transitions. [2025-03-17 19:42:28,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 262 transitions, 1478 flow [2025-03-17 19:42:28,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 262 transitions, 1446 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:42:28,645 INFO L231 Difference]: Finished difference. Result has 177 places, 180 transitions, 796 flow [2025-03-17 19:42:28,645 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=776, PETRI_DIFFERENCE_MINUEND_PLACES=174, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=796, PETRI_PLACES=177, PETRI_TRANSITIONS=180} [2025-03-17 19:42:28,646 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 30 predicate places. [2025-03-17 19:42:28,646 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 180 transitions, 796 flow [2025-03-17 19:42:28,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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 19:42:28,646 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:28,646 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:28,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-17 19:42:28,646 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:28,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash -295910676, now seen corresponding path program 1 times [2025-03-17 19:42:28,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:28,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273795449] [2025-03-17 19:42:28,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:28,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:28,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:28,658 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:28,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:28,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:28,720 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:28,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:28,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273795449] [2025-03-17 19:42:28,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273795449] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:28,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:28,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:42:28,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222193731] [2025-03-17 19:42:28,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:28,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:28,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:28,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:28,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:28,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:42:28,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 180 transitions, 796 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 19:42:28,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:28,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:42:28,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:30,311 INFO L124 PetriNetUnfolderBase]: 11002/22437 cut-off events. [2025-03-17 19:42:30,311 INFO L125 PetriNetUnfolderBase]: For 24791/25416 co-relation queries the response was YES. [2025-03-17 19:42:30,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54895 conditions, 22437 events. 11002/22437 cut-off events. For 24791/25416 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 207510 event pairs, 5690 based on Foata normal form. 603/21886 useless extension candidates. Maximal degree in co-relation 54738. Up to 11731 conditions per place. [2025-03-17 19:42:30,527 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 233 selfloop transitions, 4 changer transitions 16/319 dead transitions. [2025-03-17 19:42:30,527 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 319 transitions, 1753 flow [2025-03-17 19:42:30,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:42:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:42:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2025-03-17 19:42:30,528 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7325443786982249 [2025-03-17 19:42:30,528 INFO L175 Difference]: Start difference. First operand has 177 places, 180 transitions, 796 flow. Second operand 5 states and 619 transitions. [2025-03-17 19:42:30,528 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 319 transitions, 1753 flow [2025-03-17 19:42:30,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 319 transitions, 1741 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:30,780 INFO L231 Difference]: Finished difference. Result has 182 places, 182 transitions, 809 flow [2025-03-17 19:42:30,780 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=809, PETRI_PLACES=182, PETRI_TRANSITIONS=182} [2025-03-17 19:42:30,781 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2025-03-17 19:42:30,781 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 182 transitions, 809 flow [2025-03-17 19:42:30,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 19:42:30,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:30,781 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:30,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-17 19:42:30,781 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:30,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:30,781 INFO L85 PathProgramCache]: Analyzing trace with hash 824655517, now seen corresponding path program 1 times [2025-03-17 19:42:30,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:30,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653900654] [2025-03-17 19:42:30,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:30,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:30,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:30,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:30,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:30,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:30,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:30,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653900654] [2025-03-17 19:42:30,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653900654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:30,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:30,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:42:30,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850426076] [2025-03-17 19:42:30,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:30,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:30,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:30,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:30,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:42:30,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 809 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 19:42:30,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:30,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:42:30,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:32,255 INFO L124 PetriNetUnfolderBase]: 9724/20395 cut-off events. [2025-03-17 19:42:32,255 INFO L125 PetriNetUnfolderBase]: For 23674/24237 co-relation queries the response was YES. [2025-03-17 19:42:32,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48258 conditions, 20395 events. 9724/20395 cut-off events. For 23674/24237 co-relation queries the response was YES. Maximal size of possible extension queue 656. Compared 187033 event pairs, 5163 based on Foata normal form. 604/19539 useless extension candidates. Maximal degree in co-relation 48100. Up to 10520 conditions per place. [2025-03-17 19:42:32,361 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 243 selfloop transitions, 4 changer transitions 22/335 dead transitions. [2025-03-17 19:42:32,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 335 transitions, 2103 flow [2025-03-17 19:42:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:42:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:42:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2025-03-17 19:42:32,362 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7266272189349112 [2025-03-17 19:42:32,362 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 809 flow. Second operand 5 states and 614 transitions. [2025-03-17 19:42:32,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 335 transitions, 2103 flow [2025-03-17 19:42:32,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 335 transitions, 2103 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:42:32,461 INFO L231 Difference]: Finished difference. Result has 189 places, 184 transitions, 834 flow [2025-03-17 19:42:32,461 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=834, PETRI_PLACES=189, PETRI_TRANSITIONS=184} [2025-03-17 19:42:32,461 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2025-03-17 19:42:32,461 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 184 transitions, 834 flow [2025-03-17 19:42:32,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 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 19:42:32,461 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:32,461 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:32,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-17 19:42:32,462 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:32,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:32,462 INFO L85 PathProgramCache]: Analyzing trace with hash 862861513, now seen corresponding path program 1 times [2025-03-17 19:42:32,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:32,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844282923] [2025-03-17 19:42:32,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:32,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:32,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:32,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:32,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:32,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:32,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:32,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844282923] [2025-03-17 19:42:32,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844282923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:32,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621727197] [2025-03-17 19:42:32,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:32,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:32,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:32,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:32,542 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:32,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 184 transitions, 834 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 19:42:32,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:32,543 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:32,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:34,010 INFO L124 PetriNetUnfolderBase]: 10058/20585 cut-off events. [2025-03-17 19:42:34,010 INFO L125 PetriNetUnfolderBase]: For 25516/26095 co-relation queries the response was YES. [2025-03-17 19:42:34,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50432 conditions, 20585 events. 10058/20585 cut-off events. For 25516/26095 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 184746 event pairs, 5888 based on Foata normal form. 723/20036 useless extension candidates. Maximal degree in co-relation 50271. Up to 11850 conditions per place. [2025-03-17 19:42:34,206 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 220 selfloop transitions, 3 changer transitions 0/287 dead transitions. [2025-03-17 19:42:34,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 287 transitions, 1786 flow [2025-03-17 19:42:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:34,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:34,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2025-03-17 19:42:34,207 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7248520710059172 [2025-03-17 19:42:34,207 INFO L175 Difference]: Start difference. First operand has 189 places, 184 transitions, 834 flow. Second operand 4 states and 490 transitions. [2025-03-17 19:42:34,207 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 287 transitions, 1786 flow [2025-03-17 19:42:34,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 287 transitions, 1784 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:42:34,326 INFO L231 Difference]: Finished difference. Result has 193 places, 185 transitions, 850 flow [2025-03-17 19:42:34,326 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=832, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=850, PETRI_PLACES=193, PETRI_TRANSITIONS=185} [2025-03-17 19:42:34,326 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2025-03-17 19:42:34,326 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 185 transitions, 850 flow [2025-03-17 19:42:34,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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 19:42:34,327 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:34,327 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:34,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-17 19:42:34,327 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:34,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:34,327 INFO L85 PathProgramCache]: Analyzing trace with hash 632202468, now seen corresponding path program 1 times [2025-03-17 19:42:34,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:34,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792789141] [2025-03-17 19:42:34,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:34,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:34,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:34,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:34,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:34,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:34,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:34,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792789141] [2025-03-17 19:42:34,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792789141] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:34,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:34,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:34,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265304934] [2025-03-17 19:42:34,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:34,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:34,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:34,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:34,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:34,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:34,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 185 transitions, 850 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 19:42:34,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:34,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:34,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:35,924 INFO L124 PetriNetUnfolderBase]: 10159/21260 cut-off events. [2025-03-17 19:42:35,924 INFO L125 PetriNetUnfolderBase]: For 27109/27591 co-relation queries the response was YES. [2025-03-17 19:42:36,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52603 conditions, 21260 events. 10159/21260 cut-off events. For 27109/27591 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 193938 event pairs, 5796 based on Foata normal form. 620/20412 useless extension candidates. Maximal degree in co-relation 52439. Up to 11770 conditions per place. [2025-03-17 19:42:36,113 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 208 selfloop transitions, 9 changer transitions 0/277 dead transitions. [2025-03-17 19:42:36,114 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 277 transitions, 1760 flow [2025-03-17 19:42:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:36,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2025-03-17 19:42:36,115 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2025-03-17 19:42:36,115 INFO L175 Difference]: Start difference. First operand has 193 places, 185 transitions, 850 flow. Second operand 4 states and 460 transitions. [2025-03-17 19:42:36,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 277 transitions, 1760 flow [2025-03-17 19:42:36,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 277 transitions, 1752 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:36,257 INFO L231 Difference]: Finished difference. Result has 194 places, 183 transitions, 848 flow [2025-03-17 19:42:36,258 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=830, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=848, PETRI_PLACES=194, PETRI_TRANSITIONS=183} [2025-03-17 19:42:36,258 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2025-03-17 19:42:36,258 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 183 transitions, 848 flow [2025-03-17 19:42:36,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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 19:42:36,259 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:36,259 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:36,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-17 19:42:36,259 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:36,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:36,259 INFO L85 PathProgramCache]: Analyzing trace with hash 632201475, now seen corresponding path program 1 times [2025-03-17 19:42:36,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:36,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180176060] [2025-03-17 19:42:36,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:36,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:36,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 19:42:36,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 19:42:36,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:36,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:36,333 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:36,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:36,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180176060] [2025-03-17 19:42:36,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180176060] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:36,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:36,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:36,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584609418] [2025-03-17 19:42:36,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:36,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:42:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:36,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:42:36,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:42:36,384 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2025-03-17 19:42:36,385 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 183 transitions, 848 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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 19:42:36,385 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:36,385 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2025-03-17 19:42:36,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:37,991 INFO L124 PetriNetUnfolderBase]: 11495/22293 cut-off events. [2025-03-17 19:42:37,991 INFO L125 PetriNetUnfolderBase]: For 28830/29478 co-relation queries the response was YES. [2025-03-17 19:42:38,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57177 conditions, 22293 events. 11495/22293 cut-off events. For 28830/29478 co-relation queries the response was YES. Maximal size of possible extension queue 641. Compared 191045 event pairs, 5796 based on Foata normal form. 546/21685 useless extension candidates. Maximal degree in co-relation 57014. Up to 11769 conditions per place. [2025-03-17 19:42:38,211 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 206 selfloop transitions, 12 changer transitions 0/276 dead transitions. [2025-03-17 19:42:38,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 276 transitions, 1770 flow [2025-03-17 19:42:38,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:42:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:42:38,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2025-03-17 19:42:38,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6437869822485207 [2025-03-17 19:42:38,212 INFO L175 Difference]: Start difference. First operand has 194 places, 183 transitions, 848 flow. Second operand 5 states and 544 transitions. [2025-03-17 19:42:38,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 276 transitions, 1770 flow [2025-03-17 19:42:38,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 276 transitions, 1757 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:38,355 INFO L231 Difference]: Finished difference. Result has 197 places, 183 transitions, 881 flow [2025-03-17 19:42:38,355 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=881, PETRI_PLACES=197, PETRI_TRANSITIONS=183} [2025-03-17 19:42:38,355 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 50 predicate places. [2025-03-17 19:42:38,355 INFO L471 AbstractCegarLoop]: Abstraction has has 197 places, 183 transitions, 881 flow [2025-03-17 19:42:38,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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 19:42:38,355 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:38,356 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:38,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-17 19:42:38,356 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:38,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1876589296, now seen corresponding path program 1 times [2025-03-17 19:42:38,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:38,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085850565] [2025-03-17 19:42:38,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:38,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:38,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 19:42:38,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 19:42:38,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:38,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:38,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:38,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085850565] [2025-03-17 19:42:38,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085850565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:38,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:38,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:42:38,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663579113] [2025-03-17 19:42:38,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:38,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:42:38,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:38,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:42:38,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:42:38,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2025-03-17 19:42:38,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 183 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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 19:42:38,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:38,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2025-03-17 19:42:38,498 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:40,452 INFO L124 PetriNetUnfolderBase]: 11662/22272 cut-off events. [2025-03-17 19:42:40,452 INFO L125 PetriNetUnfolderBase]: For 33747/34405 co-relation queries the response was YES. [2025-03-17 19:42:40,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59252 conditions, 22272 events. 11662/22272 cut-off events. For 33747/34405 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 187918 event pairs, 6231 based on Foata normal form. 857/22064 useless extension candidates. Maximal degree in co-relation 59086. Up to 12567 conditions per place. [2025-03-17 19:42:40,584 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 345 selfloop transitions, 13 changer transitions 0/415 dead transitions. [2025-03-17 19:42:40,584 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 415 transitions, 2813 flow [2025-03-17 19:42:40,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:42:40,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:42:40,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 830 transitions. [2025-03-17 19:42:40,585 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.613905325443787 [2025-03-17 19:42:40,585 INFO L175 Difference]: Start difference. First operand has 197 places, 183 transitions, 881 flow. Second operand 8 states and 830 transitions. [2025-03-17 19:42:40,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 415 transitions, 2813 flow [2025-03-17 19:42:40,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 415 transitions, 2803 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:40,744 INFO L231 Difference]: Finished difference. Result has 205 places, 185 transitions, 928 flow [2025-03-17 19:42:40,744 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=928, PETRI_PLACES=205, PETRI_TRANSITIONS=185} [2025-03-17 19:42:40,745 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 58 predicate places. [2025-03-17 19:42:40,745 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 185 transitions, 928 flow [2025-03-17 19:42:40,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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 19:42:40,745 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:40,745 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:40,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-03-17 19:42:40,745 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:40,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1421404112, now seen corresponding path program 1 times [2025-03-17 19:42:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64029515] [2025-03-17 19:42:40,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:40,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 19:42:40,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 19:42:40,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:40,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:40,808 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:40,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64029515] [2025-03-17 19:42:40,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64029515] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:40,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:40,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:40,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846461327] [2025-03-17 19:42:40,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:40,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:40,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:40,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:40,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:40,839 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:40,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 185 transitions, 928 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 19:42:40,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:40,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:40,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:42,417 INFO L124 PetriNetUnfolderBase]: 10827/21372 cut-off events. [2025-03-17 19:42:42,418 INFO L125 PetriNetUnfolderBase]: For 38323/38912 co-relation queries the response was YES. [2025-03-17 19:42:42,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58943 conditions, 21372 events. 10827/21372 cut-off events. For 38323/38912 co-relation queries the response was YES. Maximal size of possible extension queue 647. Compared 185655 event pairs, 5941 based on Foata normal form. 723/21411 useless extension candidates. Maximal degree in co-relation 58772. Up to 12135 conditions per place. [2025-03-17 19:42:42,560 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 206 selfloop transitions, 10 changer transitions 0/276 dead transitions. [2025-03-17 19:42:42,560 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 276 transitions, 1846 flow [2025-03-17 19:42:42,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:42,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2025-03-17 19:42:42,561 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2025-03-17 19:42:42,562 INFO L175 Difference]: Start difference. First operand has 205 places, 185 transitions, 928 flow. Second operand 4 states and 456 transitions. [2025-03-17 19:42:42,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 276 transitions, 1846 flow [2025-03-17 19:42:42,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 276 transitions, 1829 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-03-17 19:42:42,810 INFO L231 Difference]: Finished difference. Result has 203 places, 184 transitions, 939 flow [2025-03-17 19:42:42,810 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=939, PETRI_PLACES=203, PETRI_TRANSITIONS=184} [2025-03-17 19:42:42,810 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 56 predicate places. [2025-03-17 19:42:42,810 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 184 transitions, 939 flow [2025-03-17 19:42:42,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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 19:42:42,811 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:42,811 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:42,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-17 19:42:42,811 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:42,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:42,811 INFO L85 PathProgramCache]: Analyzing trace with hash -475910954, now seen corresponding path program 1 times [2025-03-17 19:42:42,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:42,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274488260] [2025-03-17 19:42:42,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:42,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 19:42:42,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 19:42:42,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:42,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:42,876 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:42,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274488260] [2025-03-17 19:42:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274488260] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:42,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496463900] [2025-03-17 19:42:42,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:42,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:42,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:42,878 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:42,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 19:42:42,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 19:42:43,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 19:42:43,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:43,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:43,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:42:43,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:43,032 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:43,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:43,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496463900] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:43,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:43,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:42:43,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630069060] [2025-03-17 19:42:43,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:43,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:42:43,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:43,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:42:43,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 19:42:43,044 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:43,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 184 transitions, 939 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 19:42:43,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:43,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:43,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:45,024 INFO L124 PetriNetUnfolderBase]: 9939/19487 cut-off events. [2025-03-17 19:42:45,024 INFO L125 PetriNetUnfolderBase]: For 36874/37827 co-relation queries the response was YES. [2025-03-17 19:42:45,117 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54640 conditions, 19487 events. 9939/19487 cut-off events. For 36874/37827 co-relation queries the response was YES. Maximal size of possible extension queue 602. Compared 168550 event pairs, 2110 based on Foata normal form. 1018/20020 useless extension candidates. Maximal degree in co-relation 54468. Up to 7038 conditions per place. [2025-03-17 19:42:45,179 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 317 selfloop transitions, 5 changer transitions 0/382 dead transitions. [2025-03-17 19:42:45,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 382 transitions, 2579 flow [2025-03-17 19:42:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:42:45,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:42:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2025-03-17 19:42:45,181 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7149901380670611 [2025-03-17 19:42:45,181 INFO L175 Difference]: Start difference. First operand has 203 places, 184 transitions, 939 flow. Second operand 6 states and 725 transitions. [2025-03-17 19:42:45,181 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 382 transitions, 2579 flow [2025-03-17 19:42:45,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 382 transitions, 2523 flow, removed 5 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:45,388 INFO L231 Difference]: Finished difference. Result has 203 places, 181 transitions, 925 flow [2025-03-17 19:42:45,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=915, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=925, PETRI_PLACES=203, PETRI_TRANSITIONS=181} [2025-03-17 19:42:45,388 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 56 predicate places. [2025-03-17 19:42:45,388 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 181 transitions, 925 flow [2025-03-17 19:42:45,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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 19:42:45,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:45,389 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:45,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 19:42:45,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:45,589 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:45,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1868336328, now seen corresponding path program 1 times [2025-03-17 19:42:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:45,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85637089] [2025-03-17 19:42:45,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:45,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:45,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 19:42:45,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 19:42:45,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:45,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:45,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85637089] [2025-03-17 19:42:45,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85637089] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:45,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288646616] [2025-03-17 19:42:45,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:45,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:45,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:45,704 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:45,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 19:42:45,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 19:42:45,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 19:42:45,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:45,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:45,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:42:45,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:45,872 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:42:45,872 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:45,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288646616] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:45,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:45,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 19:42:45,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705444686] [2025-03-17 19:42:45,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:45,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:42:45,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:45,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:42:45,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:42:45,880 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:42:45,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 181 transitions, 925 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 19:42:45,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:45,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:42:45,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:47,553 INFO L124 PetriNetUnfolderBase]: 9443/19273 cut-off events. [2025-03-17 19:42:47,553 INFO L125 PetriNetUnfolderBase]: For 34244/34977 co-relation queries the response was YES. [2025-03-17 19:42:47,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52964 conditions, 19273 events. 9443/19273 cut-off events. For 34244/34977 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 171084 event pairs, 4796 based on Foata normal form. 830/19572 useless extension candidates. Maximal degree in co-relation 52793. Up to 9547 conditions per place. [2025-03-17 19:42:47,750 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/232 dead transitions. [2025-03-17 19:42:47,750 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 232 transitions, 1506 flow [2025-03-17 19:42:47,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:42:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:42:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2025-03-17 19:42:47,751 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7297830374753451 [2025-03-17 19:42:47,751 INFO L175 Difference]: Start difference. First operand has 203 places, 181 transitions, 925 flow. Second operand 3 states and 370 transitions. [2025-03-17 19:42:47,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 232 transitions, 1506 flow [2025-03-17 19:42:47,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 232 transitions, 1493 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-17 19:42:47,932 INFO L231 Difference]: Finished difference. Result has 199 places, 180 transitions, 920 flow [2025-03-17 19:42:47,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=920, PETRI_PLACES=199, PETRI_TRANSITIONS=180} [2025-03-17 19:42:47,937 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 52 predicate places. [2025-03-17 19:42:47,937 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 180 transitions, 920 flow [2025-03-17 19:42:47,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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 19:42:47,937 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:47,937 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:47,943 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 19:42:48,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:48,138 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:48,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:48,138 INFO L85 PathProgramCache]: Analyzing trace with hash -83418048, now seen corresponding path program 1 times [2025-03-17 19:42:48,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:48,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216946698] [2025-03-17 19:42:48,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:48,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:48,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 19:42:48,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 19:42:48,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:48,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:48,210 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:48,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:48,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216946698] [2025-03-17 19:42:48,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216946698] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:48,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258256989] [2025-03-17 19:42:48,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:48,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:48,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:48,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:48,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 19:42:48,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-03-17 19:42:48,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-03-17 19:42:48,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:48,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:48,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:42:48,341 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:48,366 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:48,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:48,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258256989] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:48,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:48,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:42:48,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463148480] [2025-03-17 19:42:48,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:48,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:42:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:48,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:42:48,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-03-17 19:42:48,381 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:48,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 180 transitions, 920 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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 19:42:48,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:48,382 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:48,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:50,186 INFO L124 PetriNetUnfolderBase]: 10205/20244 cut-off events. [2025-03-17 19:42:50,186 INFO L125 PetriNetUnfolderBase]: For 37674/38510 co-relation queries the response was YES. [2025-03-17 19:42:50,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56092 conditions, 20244 events. 10205/20244 cut-off events. For 37674/38510 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 175386 event pairs, 2275 based on Foata normal form. 1000/20931 useless extension candidates. Maximal degree in co-relation 55923. Up to 7144 conditions per place. [2025-03-17 19:42:50,280 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 316 selfloop transitions, 5 changer transitions 0/376 dead transitions. [2025-03-17 19:42:50,280 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 376 transitions, 2592 flow [2025-03-17 19:42:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:42:50,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:42:50,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2025-03-17 19:42:50,281 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7090729783037475 [2025-03-17 19:42:50,281 INFO L175 Difference]: Start difference. First operand has 199 places, 180 transitions, 920 flow. Second operand 6 states and 719 transitions. [2025-03-17 19:42:50,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 376 transitions, 2592 flow [2025-03-17 19:42:50,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 376 transitions, 2572 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:42:50,444 INFO L231 Difference]: Finished difference. Result has 200 places, 177 transitions, 914 flow [2025-03-17 19:42:50,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=904, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=914, PETRI_PLACES=200, PETRI_TRANSITIONS=177} [2025-03-17 19:42:50,444 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 53 predicate places. [2025-03-17 19:42:50,444 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 177 transitions, 914 flow [2025-03-17 19:42:50,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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 19:42:50,445 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:50,445 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:50,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-17 19:42:50,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-03-17 19:42:50,645 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:50,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1709009242, now seen corresponding path program 1 times [2025-03-17 19:42:50,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:50,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944117177] [2025-03-17 19:42:50,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:50,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:50,657 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 19:42:50,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 19:42:50,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:50,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:50,717 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:50,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944117177] [2025-03-17 19:42:50,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944117177] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:50,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453255542] [2025-03-17 19:42:50,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:50,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:50,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:50,720 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:50,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 19:42:50,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-17 19:42:50,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-17 19:42:50,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:50,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:50,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 19:42:50,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:50,888 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:42:50,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453255542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:50,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 19:42:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048625339] [2025-03-17 19:42:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:50,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:42:50,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:50,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:42:50,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:42:50,895 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2025-03-17 19:42:50,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 177 transitions, 914 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 19:42:50,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:50,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2025-03-17 19:42:50,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:52,332 INFO L124 PetriNetUnfolderBase]: 9689/19740 cut-off events. [2025-03-17 19:42:52,332 INFO L125 PetriNetUnfolderBase]: For 35860/36542 co-relation queries the response was YES. [2025-03-17 19:42:52,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54597 conditions, 19740 events. 9689/19740 cut-off events. For 35860/36542 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 174328 event pairs, 5011 based on Foata normal form. 820/20207 useless extension candidates. Maximal degree in co-relation 54427. Up to 9873 conditions per place. [2025-03-17 19:42:52,572 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/227 dead transitions. [2025-03-17 19:42:52,572 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 227 transitions, 1509 flow [2025-03-17 19:42:52,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:42:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:42:52,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2025-03-17 19:42:52,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7258382642998028 [2025-03-17 19:42:52,573 INFO L175 Difference]: Start difference. First operand has 200 places, 177 transitions, 914 flow. Second operand 3 states and 368 transitions. [2025-03-17 19:42:52,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 227 transitions, 1509 flow [2025-03-17 19:42:52,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 227 transitions, 1496 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-17 19:42:52,783 INFO L231 Difference]: Finished difference. Result has 196 places, 176 transitions, 909 flow [2025-03-17 19:42:52,783 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=909, PETRI_PLACES=196, PETRI_TRANSITIONS=176} [2025-03-17 19:42:52,784 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2025-03-17 19:42:52,784 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 176 transitions, 909 flow [2025-03-17 19:42:52,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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 19:42:52,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:52,784 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:52,790 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-17 19:42:52,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:52,985 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:52,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:52,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1094399541, now seen corresponding path program 1 times [2025-03-17 19:42:52,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:52,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389876799] [2025-03-17 19:42:52,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:52,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:52,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-03-17 19:42:53,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-03-17 19:42:53,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:53,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:53,053 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:42:53,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:53,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389876799] [2025-03-17 19:42:53,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389876799] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:53,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:42:53,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:42:53,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902161225] [2025-03-17 19:42:53,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:53,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:53,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:53,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:53,055 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:42:53,071 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:53,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 176 transitions, 909 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:42:53,072 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:53,072 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:53,072 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:54,615 INFO L124 PetriNetUnfolderBase]: 9683/19500 cut-off events. [2025-03-17 19:42:54,615 INFO L125 PetriNetUnfolderBase]: For 35023/35788 co-relation queries the response was YES. [2025-03-17 19:42:54,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54109 conditions, 19500 events. 9683/19500 cut-off events. For 35023/35788 co-relation queries the response was YES. Maximal size of possible extension queue 570. Compared 171602 event pairs, 4996 based on Foata normal form. 768/20109 useless extension candidates. Maximal degree in co-relation 53941. Up to 9840 conditions per place. [2025-03-17 19:42:54,793 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 215 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2025-03-17 19:42:54,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 276 transitions, 1852 flow [2025-03-17 19:42:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2025-03-17 19:42:54,794 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7085798816568047 [2025-03-17 19:42:54,794 INFO L175 Difference]: Start difference. First operand has 196 places, 176 transitions, 909 flow. Second operand 4 states and 479 transitions. [2025-03-17 19:42:54,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 276 transitions, 1852 flow [2025-03-17 19:42:54,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 276 transitions, 1838 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:42:54,990 INFO L231 Difference]: Finished difference. Result has 196 places, 175 transitions, 911 flow [2025-03-17 19:42:54,990 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=899, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=911, PETRI_PLACES=196, PETRI_TRANSITIONS=175} [2025-03-17 19:42:54,990 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 49 predicate places. [2025-03-17 19:42:54,990 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 175 transitions, 911 flow [2025-03-17 19:42:54,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:42:54,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:54,991 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:54,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-17 19:42:54,991 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:54,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:54,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1093607961, now seen corresponding path program 1 times [2025-03-17 19:42:54,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:54,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968304623] [2025-03-17 19:42:54,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:54,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:55,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 19:42:55,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 19:42:55,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:55,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:55,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:55,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968304623] [2025-03-17 19:42:55,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968304623] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:55,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477431217] [2025-03-17 19:42:55,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:55,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:55,073 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:55,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 19:42:55,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 19:42:55,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 19:42:55,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:55,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:55,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:42:55,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:42:55,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:55,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477431217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:55,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:55,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2025-03-17 19:42:55,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877708234] [2025-03-17 19:42:55,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:55,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:42:55,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:55,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:42:55,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:42:55,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:42:55,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 175 transitions, 911 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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 19:42:55,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:55,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:42:55,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:56,923 INFO L124 PetriNetUnfolderBase]: 10023/20594 cut-off events. [2025-03-17 19:42:56,923 INFO L125 PetriNetUnfolderBase]: For 36074/36480 co-relation queries the response was YES. [2025-03-17 19:42:57,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57269 conditions, 20594 events. 10023/20594 cut-off events. For 36074/36480 co-relation queries the response was YES. Maximal size of possible extension queue 594. Compared 181648 event pairs, 6995 based on Foata normal form. 576/20972 useless extension candidates. Maximal degree in co-relation 57101. Up to 13892 conditions per place. [2025-03-17 19:42:57,123 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 260 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2025-03-17 19:42:57,125 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 318 transitions, 2163 flow [2025-03-17 19:42:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:42:57,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:42:57,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2025-03-17 19:42:57,126 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2025-03-17 19:42:57,127 INFO L175 Difference]: Start difference. First operand has 196 places, 175 transitions, 911 flow. Second operand 6 states and 637 transitions. [2025-03-17 19:42:57,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 318 transitions, 2163 flow [2025-03-17 19:42:57,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 318 transitions, 2121 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-17 19:42:57,360 INFO L231 Difference]: Finished difference. Result has 193 places, 173 transitions, 869 flow [2025-03-17 19:42:57,360 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=869, PETRI_PLACES=193, PETRI_TRANSITIONS=173} [2025-03-17 19:42:57,360 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2025-03-17 19:42:57,360 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 173 transitions, 869 flow [2025-03-17 19:42:57,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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 19:42:57,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:57,360 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:57,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-17 19:42:57,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-03-17 19:42:57,561 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:57,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1643201787, now seen corresponding path program 1 times [2025-03-17 19:42:57,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:57,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295731892] [2025-03-17 19:42:57,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:57,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:57,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 19:42:57,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 19:42:57,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:57,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:57,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:57,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295731892] [2025-03-17 19:42:57,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295731892] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:57,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88487240] [2025-03-17 19:42:57,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:57,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:57,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:57,635 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:57,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 19:42:57,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-17 19:42:57,768 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-17 19:42:57,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:57,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:57,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:42:57,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:42:57,829 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:42:57,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:42:57,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88487240] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:42:57,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:42:57,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2025-03-17 19:42:57,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457275999] [2025-03-17 19:42:57,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:42:57,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:42:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:42:57,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:42:57,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:42:57,850 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:42:57,851 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 173 transitions, 869 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:42:57,851 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:42:57,851 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:42:57,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:42:59,253 INFO L124 PetriNetUnfolderBase]: 9861/19948 cut-off events. [2025-03-17 19:42:59,253 INFO L125 PetriNetUnfolderBase]: For 30081/30655 co-relation queries the response was YES. [2025-03-17 19:42:59,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54277 conditions, 19948 events. 9861/19948 cut-off events. For 30081/30655 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 173939 event pairs, 6075 based on Foata normal form. 554/20326 useless extension candidates. Maximal degree in co-relation 54111. Up to 12220 conditions per place. [2025-03-17 19:42:59,381 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 161 selfloop transitions, 7 changer transitions 0/219 dead transitions. [2025-03-17 19:42:59,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 219 transitions, 1438 flow [2025-03-17 19:42:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:42:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:42:59,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2025-03-17 19:42:59,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6479289940828402 [2025-03-17 19:42:59,382 INFO L175 Difference]: Start difference. First operand has 193 places, 173 transitions, 869 flow. Second operand 4 states and 438 transitions. [2025-03-17 19:42:59,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 219 transitions, 1438 flow [2025-03-17 19:42:59,578 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 219 transitions, 1423 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:42:59,580 INFO L231 Difference]: Finished difference. Result has 192 places, 172 transitions, 872 flow [2025-03-17 19:42:59,580 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=872, PETRI_PLACES=192, PETRI_TRANSITIONS=172} [2025-03-17 19:42:59,581 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2025-03-17 19:42:59,581 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 172 transitions, 872 flow [2025-03-17 19:42:59,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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 19:42:59,581 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:42:59,581 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:42:59,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-17 19:42:59,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-17 19:42:59,782 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:42:59,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:42:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 457892972, now seen corresponding path program 1 times [2025-03-17 19:42:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:42:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996232935] [2025-03-17 19:42:59,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:42:59,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 19:42:59,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 19:42:59,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:59,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:59,851 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:42:59,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:42:59,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996232935] [2025-03-17 19:42:59,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996232935] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:42:59,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970326271] [2025-03-17 19:42:59,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:42:59,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:42:59,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:42:59,854 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:42:59,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 19:42:59,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 19:42:59,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 19:42:59,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:42:59,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:42:59,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:42:59,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:43:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:43:00,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:43:00,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970326271] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:00,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:43:00,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2025-03-17 19:43:00,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061448678] [2025-03-17 19:43:00,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:00,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:43:00,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:00,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:43:00,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:43:00,123 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:43:00,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 172 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 19:43:00,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:00,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:43:00,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:01,719 INFO L124 PetriNetUnfolderBase]: 10367/20690 cut-off events. [2025-03-17 19:43:01,719 INFO L125 PetriNetUnfolderBase]: For 32635/33038 co-relation queries the response was YES. [2025-03-17 19:43:01,789 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56783 conditions, 20690 events. 10367/20690 cut-off events. For 32635/33038 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 178382 event pairs, 6695 based on Foata normal form. 553/21069 useless extension candidates. Maximal degree in co-relation 56617. Up to 13348 conditions per place. [2025-03-17 19:43:01,827 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 216 selfloop transitions, 10 changer transitions 88/363 dead transitions. [2025-03-17 19:43:01,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 363 transitions, 2516 flow [2025-03-17 19:43:01,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:43:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:43:01,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 746 transitions. [2025-03-17 19:43:01,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6306001690617076 [2025-03-17 19:43:01,828 INFO L175 Difference]: Start difference. First operand has 192 places, 172 transitions, 872 flow. Second operand 7 states and 746 transitions. [2025-03-17 19:43:01,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 363 transitions, 2516 flow [2025-03-17 19:43:02,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 363 transitions, 2482 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:43:02,018 INFO L231 Difference]: Finished difference. Result has 194 places, 171 transitions, 878 flow [2025-03-17 19:43:02,019 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=878, PETRI_PLACES=194, PETRI_TRANSITIONS=171} [2025-03-17 19:43:02,019 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2025-03-17 19:43:02,019 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 171 transitions, 878 flow [2025-03-17 19:43:02,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 19:43:02,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:02,019 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:02,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 19:43:02,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-17 19:43:02,220 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:43:02,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash -600381453, now seen corresponding path program 1 times [2025-03-17 19:43:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:02,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40277546] [2025-03-17 19:43:02,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:02,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:02,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 19:43:02,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 19:43:02,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:02,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:43:02,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:02,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40277546] [2025-03-17 19:43:02,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40277546] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:43:02,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958383470] [2025-03-17 19:43:02,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:02,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:43:02,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:43:02,299 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:43:02,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 19:43:02,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 19:43:02,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 19:43:02,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:02,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:02,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:43:02,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:43:02,507 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:43:02,507 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:43:02,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958383470] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:02,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:43:02,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2025-03-17 19:43:02,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604398944] [2025-03-17 19:43:02,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:02,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:43:02,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:02,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:43:02,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:43:02,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2025-03-17 19:43:02,523 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 171 transitions, 878 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 19:43:02,523 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:02,523 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2025-03-17 19:43:02,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:03,872 INFO L124 PetriNetUnfolderBase]: 9689/19576 cut-off events. [2025-03-17 19:43:03,872 INFO L125 PetriNetUnfolderBase]: For 33841/34383 co-relation queries the response was YES. [2025-03-17 19:43:03,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53960 conditions, 19576 events. 9689/19576 cut-off events. For 33841/34383 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 170272 event pairs, 6379 based on Foata normal form. 632/20026 useless extension candidates. Maximal degree in co-relation 53795. Up to 12772 conditions per place. [2025-03-17 19:43:04,034 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 162 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2025-03-17 19:43:04,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 217 transitions, 1449 flow [2025-03-17 19:43:04,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:43:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:43:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2025-03-17 19:43:04,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2025-03-17 19:43:04,035 INFO L175 Difference]: Start difference. First operand has 194 places, 171 transitions, 878 flow. Second operand 4 states and 427 transitions. [2025-03-17 19:43:04,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 217 transitions, 1449 flow [2025-03-17 19:43:04,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 217 transitions, 1406 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-17 19:43:04,214 INFO L231 Difference]: Finished difference. Result has 191 places, 170 transitions, 859 flow [2025-03-17 19:43:04,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=859, PETRI_PLACES=191, PETRI_TRANSITIONS=170} [2025-03-17 19:43:04,215 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 44 predicate places. [2025-03-17 19:43:04,215 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 170 transitions, 859 flow [2025-03-17 19:43:04,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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 19:43:04,215 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:04,215 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:04,221 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 19:43:04,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-17 19:43:04,416 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:43:04,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:04,416 INFO L85 PathProgramCache]: Analyzing trace with hash 584035186, now seen corresponding path program 1 times [2025-03-17 19:43:04,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:04,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861372155] [2025-03-17 19:43:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:04,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:04,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-17 19:43:04,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-17 19:43:04,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:04,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:04,479 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:43:04,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:04,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861372155] [2025-03-17 19:43:04,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861372155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:04,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:43:04,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:43:04,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858243782] [2025-03-17 19:43:04,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:04,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:43:04,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:04,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:43:04,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:43:04,491 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2025-03-17 19:43:04,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 170 transitions, 859 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 19:43:04,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:04,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2025-03-17 19:43:04,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:06,015 INFO L124 PetriNetUnfolderBase]: 9689/19204 cut-off events. [2025-03-17 19:43:06,015 INFO L125 PetriNetUnfolderBase]: For 32884/33530 co-relation queries the response was YES. [2025-03-17 19:43:06,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52207 conditions, 19204 events. 9689/19204 cut-off events. For 32884/33530 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 164420 event pairs, 5011 based on Foata normal form. 716/19775 useless extension candidates. Maximal degree in co-relation 52043. Up to 9873 conditions per place. [2025-03-17 19:43:06,113 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 212 selfloop transitions, 6 changer transitions 0/267 dead transitions. [2025-03-17 19:43:06,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 267 transitions, 1745 flow [2025-03-17 19:43:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:43:06,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:43:06,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2025-03-17 19:43:06,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7041420118343196 [2025-03-17 19:43:06,114 INFO L175 Difference]: Start difference. First operand has 191 places, 170 transitions, 859 flow. Second operand 4 states and 476 transitions. [2025-03-17 19:43:06,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 267 transitions, 1745 flow [2025-03-17 19:43:06,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 267 transitions, 1733 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:43:06,247 INFO L231 Difference]: Finished difference. Result has 189 places, 169 transitions, 855 flow [2025-03-17 19:43:06,247 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=843, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=855, PETRI_PLACES=189, PETRI_TRANSITIONS=169} [2025-03-17 19:43:06,247 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2025-03-17 19:43:06,247 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 169 transitions, 855 flow [2025-03-17 19:43:06,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 19:43:06,248 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:06,248 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:06,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-03-17 19:43:06,248 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:43:06,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:06,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1431955389, now seen corresponding path program 1 times [2025-03-17 19:43:06,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:06,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214920173] [2025-03-17 19:43:06,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:06,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 19:43:06,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 19:43:06,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:06,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:06,320 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:43:06,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:06,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214920173] [2025-03-17 19:43:06,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214920173] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:43:06,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363699588] [2025-03-17 19:43:06,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:06,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:43:06,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:43:06,323 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:43:06,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 19:43:06,439 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-03-17 19:43:06,466 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-03-17 19:43:06,466 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:06,466 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:06,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:43:06,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:43:06,537 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:43:06,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:43:06,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363699588] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:06,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:43:06,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2025-03-17 19:43:06,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998821327] [2025-03-17 19:43:06,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:06,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:43:06,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:06,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:43:06,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:43:06,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:43:06,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 169 transitions, 855 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 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 19:43:06,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:06,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:43:06,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:08,074 INFO L124 PetriNetUnfolderBase]: 10033/19810 cut-off events. [2025-03-17 19:43:08,074 INFO L125 PetriNetUnfolderBase]: For 32437/32907 co-relation queries the response was YES. [2025-03-17 19:43:08,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53827 conditions, 19810 events. 10033/19810 cut-off events. For 32437/32907 co-relation queries the response was YES. Maximal size of possible extension queue 551. Compared 168606 event pairs, 6987 based on Foata normal form. 666/20311 useless extension candidates. Maximal degree in co-relation 53665. Up to 13876 conditions per place. [2025-03-17 19:43:08,192 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 257 selfloop transitions, 7 changer transitions 0/309 dead transitions. [2025-03-17 19:43:08,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 309 transitions, 2041 flow [2025-03-17 19:43:08,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:43:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:43:08,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2025-03-17 19:43:08,193 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6252465483234714 [2025-03-17 19:43:08,193 INFO L175 Difference]: Start difference. First operand has 189 places, 169 transitions, 855 flow. Second operand 6 states and 634 transitions. [2025-03-17 19:43:08,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 309 transitions, 2041 flow [2025-03-17 19:43:08,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 309 transitions, 1999 flow, removed 0 selfloop flow, removed 7 redundant places. [2025-03-17 19:43:08,351 INFO L231 Difference]: Finished difference. Result has 186 places, 167 transitions, 813 flow [2025-03-17 19:43:08,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=799, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=813, PETRI_PLACES=186, PETRI_TRANSITIONS=167} [2025-03-17 19:43:08,352 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 39 predicate places. [2025-03-17 19:43:08,352 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 167 transitions, 813 flow [2025-03-17 19:43:08,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 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 19:43:08,352 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:43:08,352 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:08,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 19:43:08,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:43:08,553 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2025-03-17 19:43:08,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:43:08,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1440942632, now seen corresponding path program 1 times [2025-03-17 19:43:08,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:43:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227393592] [2025-03-17 19:43:08,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:08,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:43:08,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 19:43:08,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 19:43:08,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:08,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 19:43:08,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:43:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227393592] [2025-03-17 19:43:08,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227393592] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:43:08,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462943226] [2025-03-17 19:43:08,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:43:08,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:43:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:43:08,623 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 19:43:08,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 19:43:08,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 19:43:08,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 19:43:08,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:43:08,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:43:08,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:43:08,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:43:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2025-03-17 19:43:08,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:43:08,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462943226] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:43:08,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:43:08,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2025-03-17 19:43:08,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047274950] [2025-03-17 19:43:08,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:43:08,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:43:08,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:43:08,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:43:08,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-03-17 19:43:08,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2025-03-17 19:43:08,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 167 transitions, 813 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 19:43:08,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:43:08,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2025-03-17 19:43:08,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:43:10,410 INFO L124 PetriNetUnfolderBase]: 10377/19948 cut-off events. [2025-03-17 19:43:10,410 INFO L125 PetriNetUnfolderBase]: For 26647/27123 co-relation queries the response was YES. [2025-03-17 19:43:10,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53005 conditions, 19948 events. 10377/19948 cut-off events. For 26647/27123 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 165944 event pairs, 6683 based on Foata normal form. 666/20448 useless extension candidates. Maximal degree in co-relation 52845. Up to 13324 conditions per place. [2025-03-17 19:43:10,527 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 0 selfloop transitions, 0 changer transitions 354/354 dead transitions. [2025-03-17 19:43:10,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 354 transitions, 2321 flow [2025-03-17 19:43:10,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:43:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:43:10,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 742 transitions. [2025-03-17 19:43:10,529 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6272189349112426 [2025-03-17 19:43:10,529 INFO L175 Difference]: Start difference. First operand has 186 places, 167 transitions, 813 flow. Second operand 7 states and 742 transitions. [2025-03-17 19:43:10,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 354 transitions, 2321 flow [2025-03-17 19:43:10,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 354 transitions, 2310 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-17 19:43:10,639 INFO L231 Difference]: Finished difference. Result has 187 places, 0 transitions, 0 flow [2025-03-17 19:43:10,639 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=187, PETRI_TRANSITIONS=0} [2025-03-17 19:43:10,640 INFO L279 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2025-03-17 19:43:10,640 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 0 transitions, 0 flow [2025-03-17 19:43:10,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2025-03-17 19:43:10,642 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2025-03-17 19:43:10,643 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2025-03-17 19:43:10,644 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2025-03-17 19:43:10,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 19:43:10,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:43:10,845 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:43:10,848 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:43:10,849 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:43:10,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:43:10 BasicIcfg [2025-03-17 19:43:10,854 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:43:10,855 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:43:10,855 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:43:10,855 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:43:10,855 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:41:48" (3/4) ... [2025-03-17 19:43:10,856 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:43:10,858 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 19:43:10,858 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 19:43:10,862 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2025-03-17 19:43:10,864 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2025-03-17 19:43:10,864 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2025-03-17 19:43:10,864 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-17 19:43:10,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:43:10,933 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:43:10,933 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:43:10,934 INFO L158 Benchmark]: Toolchain (without parser) took 83562.93ms. Allocated memory was 142.6MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 104.3MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2025-03-17 19:43:10,934 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:43:10,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.76ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 90.8MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 19:43:10,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.16ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 87.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:43:10,936 INFO L158 Benchmark]: Boogie Preprocessor took 54.56ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 84.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:43:10,936 INFO L158 Benchmark]: IcfgBuilder took 1076.37ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 93.7MB in the end (delta: -9.7MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. [2025-03-17 19:43:10,936 INFO L158 Benchmark]: TraceAbstraction took 82100.17ms. Allocated memory was 142.6MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 93.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. [2025-03-17 19:43:10,936 INFO L158 Benchmark]: Witness Printer took 78.27ms. Allocated memory is still 4.9GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:43:10,938 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 127.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.76ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 90.8MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.16ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 87.4MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.56ms. Allocated memory is still 142.6MB. Free memory was 87.4MB in the beginning and 84.0MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1076.37ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 93.7MB in the end (delta: -9.7MB). Peak memory consumption was 68.6MB. Max. memory is 16.1GB. * TraceAbstraction took 82100.17ms. Allocated memory was 142.6MB in the beginning and 4.9GB in the end (delta: 4.8GB). Free memory was 93.7MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 3.4GB. Max. memory is 16.1GB. * Witness Printer took 78.27ms. Allocated memory is still 4.9GB. Free memory was 1.5GB in the beginning and 1.5GB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 268 locations, 317 edges, 80 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 81.9s, OverallIterations: 41, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 72.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5807 SdHoareTripleChecker+Valid, 8.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4952 mSDsluCounter, 794 SdHoareTripleChecker+Invalid, 6.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 480 mSDsCounter, 401 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14385 IncrementalHoareTripleChecker+Invalid, 14786 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 401 mSolverCounterUnsat, 314 mSDtfsCounter, 14385 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 858 GetRequests, 633 SyntacticMatches, 5 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=939occurred in iteration=29, InterpolantAutomatonStates: 203, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 2203 NumberOfCodeBlocks, 2131 NumberOfCodeBlocksAsserted, 56 NumberOfCheckSat, 2213 ConstructedInterpolants, 0 QuantifiedInterpolants, 5395 SizeOfPredicates, 32 NumberOfNonLiveVariables, 3821 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 60 InterpolantComputations, 37 PerfectInterpolantSequences, 3041/3139 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:43:10,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE