./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/test-context1.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/test-context1.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 d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:47:17,642 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:47:17,692 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:47:17,695 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:47:17,695 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:47:17,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:47:17,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:47:17,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:47:17,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:47:17,715 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:47:17,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:47:17,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:47:17,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:47:17,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:47:17,716 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:47:17,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:47:17,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:47:17,717 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:47:17,718 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:47:17,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:47:17,719 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:47:17,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:47:17,719 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 -> d63a80d2bfe8ff8bb62e6b5083cee589f2cb0f37dc67867654ab7601d82af23e [2025-03-17 19:47:17,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:47:17,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:47:17,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:47:17,976 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:47:17,976 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:47:17,978 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/test-context1.wvr.c [2025-03-17 19:47:19,157 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4e8a76/0f301b34a4f24307a60b3325fedad7cd/FLAGb5a11f3d7 [2025-03-17 19:47:19,402 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:47:19,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/test-context1.wvr.c [2025-03-17 19:47:19,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4e8a76/0f301b34a4f24307a60b3325fedad7cd/FLAGb5a11f3d7 [2025-03-17 19:47:19,442 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9f4e8a76/0f301b34a4f24307a60b3325fedad7cd [2025-03-17 19:47:19,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:47:19,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:47:19,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:47:19,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:47:19,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:47:19,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1444aab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19, skipping insertion in model container [2025-03-17 19:47:19,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:47:19,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:47:19,611 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:47:19,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:47:19,644 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:47:19,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19 WrapperNode [2025-03-17 19:47:19,645 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:47:19,646 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:47:19,646 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:47:19,646 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:47:19,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,674 INFO L138 Inliner]: procedures = 23, calls = 25, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 142 [2025-03-17 19:47:19,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:47:19,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:47:19,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:47:19,677 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:47:19,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,704 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-17 19:47:19,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,712 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,714 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,720 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:47:19,721 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:47:19,724 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:47:19,725 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:47:19,725 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (1/1) ... [2025-03-17 19:47:19,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:47:19,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:19,755 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 19:47:19,758 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 19:47:19,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-17 19:47:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-17 19:47:19,778 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:47:19,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-17 19:47:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-17 19:47:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 19:47:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:47:19,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:47:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:47:19,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:47:19,780 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 19:47:19,857 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:47:19,859 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:47:20,116 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:47:20,116 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:47:20,280 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:47:20,280 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:47:20,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:20 BoogieIcfgContainer [2025-03-17 19:47:20,281 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:47:20,284 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:47:20,284 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:47:20,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:47:20,288 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:47:19" (1/3) ... [2025-03-17 19:47:20,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6988c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:47:20, skipping insertion in model container [2025-03-17 19:47:20,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:47:19" (2/3) ... [2025-03-17 19:47:20,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6988c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:47:20, skipping insertion in model container [2025-03-17 19:47:20,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:20" (3/3) ... [2025-03-17 19:47:20,293 INFO L128 eAbstractionObserver]: Analyzing ICFG test-context1.wvr.c [2025-03-17 19:47:20,304 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:47:20,305 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-context1.wvr.c that has 3 procedures, 38 locations, 1 initial locations, 3 loop locations, and 14 error locations. [2025-03-17 19:47:20,305 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:47:20,366 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:47:20,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 42 transitions, 98 flow [2025-03-17 19:47:20,434 INFO L124 PetriNetUnfolderBase]: 5/40 cut-off events. [2025-03-17 19:47:20,436 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-03-17 19:47:20,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 5/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 104 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2025-03-17 19:47:20,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 42 transitions, 98 flow [2025-03-17 19:47:20,444 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 38 transitions, 85 flow [2025-03-17 19:47:20,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:47:20,464 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;@1965b989, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:47:20,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2025-03-17 19:47:20,470 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:47:20,470 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-17 19:47:20,470 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:47:20,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:20,471 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-17 19:47:20,472 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:20,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash 416119, now seen corresponding path program 1 times [2025-03-17 19:47:20,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:20,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951788264] [2025-03-17 19:47:20,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:20,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:20,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 19:47:20,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 19:47:20,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:20,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:20,693 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 19:47:20,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:20,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951788264] [2025-03-17 19:47:20,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951788264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:20,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:20,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:20,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198900584] [2025-03-17 19:47:20,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:20,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:20,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:20,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:20,735 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:20,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 38 transitions, 85 flow. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 19:47:20,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:20,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:20,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:20,925 INFO L124 PetriNetUnfolderBase]: 265/462 cut-off events. [2025-03-17 19:47:20,925 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-03-17 19:47:20,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 953 conditions, 462 events. 265/462 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1935 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 885. Up to 456 conditions per place. [2025-03-17 19:47:20,932 INFO L140 encePairwiseOnDemand]: 28/42 looper letters, 26 selfloop transitions, 4 changer transitions 0/33 dead transitions. [2025-03-17 19:47:20,932 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 33 transitions, 135 flow [2025-03-17 19:47:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:20,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:20,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2025-03-17 19:47:20,942 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-03-17 19:47:20,944 INFO L175 Difference]: Start difference. First operand has 40 places, 38 transitions, 85 flow. Second operand 4 states and 60 transitions. [2025-03-17 19:47:20,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 33 transitions, 135 flow [2025-03-17 19:47:20,947 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 33 transitions, 130 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:20,950 INFO L231 Difference]: Finished difference. Result has 36 places, 33 transitions, 93 flow [2025-03-17 19:47:20,952 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=93, PETRI_PLACES=36, PETRI_TRANSITIONS=33} [2025-03-17 19:47:20,955 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -4 predicate places. [2025-03-17 19:47:20,955 INFO L471 AbstractCegarLoop]: Abstraction has has 36 places, 33 transitions, 93 flow [2025-03-17 19:47:20,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 19:47:20,955 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:20,955 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 19:47:20,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:47:20,955 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:20,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:20,956 INFO L85 PathProgramCache]: Analyzing trace with hash -487932690, now seen corresponding path program 1 times [2025-03-17 19:47:20,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:20,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3879096] [2025-03-17 19:47:20,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:20,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:20,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:47:20,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:47:20,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:20,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:21,050 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 19:47:21,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:21,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3879096] [2025-03-17 19:47:21,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3879096] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:21,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926819815] [2025-03-17 19:47:21,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:21,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:21,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:21,053 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 19:47:21,054 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 19:47:21,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 19:47:21,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 19:47:21,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:21,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:21,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:47:21,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:21,146 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 19:47:21,147 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:47:21,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926819815] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:21,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:47:21,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-17 19:47:21,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151191101] [2025-03-17 19:47:21,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:21,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:47:21,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:21,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:47:21,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:47:21,156 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:21,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 33 transitions, 93 flow. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 19:47:21,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:21,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:21,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:21,329 INFO L124 PetriNetUnfolderBase]: 265/461 cut-off events. [2025-03-17 19:47:21,330 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-03-17 19:47:21,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 954 conditions, 461 events. 265/461 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 1946 event pairs, 224 based on Foata normal form. 1/305 useless extension candidates. Maximal degree in co-relation 927. Up to 451 conditions per place. [2025-03-17 19:47:21,334 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 22 selfloop transitions, 7 changer transitions 0/32 dead transitions. [2025-03-17 19:47:21,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 147 flow [2025-03-17 19:47:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:47:21,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:47:21,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 60 transitions. [2025-03-17 19:47:21,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2025-03-17 19:47:21,339 INFO L175 Difference]: Start difference. First operand has 36 places, 33 transitions, 93 flow. Second operand 6 states and 60 transitions. [2025-03-17 19:47:21,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 147 flow [2025-03-17 19:47:21,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:21,340 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 100 flow [2025-03-17 19:47:21,340 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=86, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2025-03-17 19:47:21,340 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -1 predicate places. [2025-03-17 19:47:21,340 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 100 flow [2025-03-17 19:47:21,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 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 19:47:21,341 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:21,341 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:21,349 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 19:47:21,546 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 19:47:21,546 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:21,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:21,547 INFO L85 PathProgramCache]: Analyzing trace with hash 2132498639, now seen corresponding path program 1 times [2025-03-17 19:47:21,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:21,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730451830] [2025-03-17 19:47:21,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:21,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:21,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:47:21,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:47:21,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:21,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:21,622 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 19:47:21,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:21,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730451830] [2025-03-17 19:47:21,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730451830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:21,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:21,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:47:21,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383400907] [2025-03-17 19:47:21,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:21,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:47:21,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:21,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:47:21,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:47:21,624 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:21,624 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 19:47:21,624 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:21,624 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:21,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:21,720 INFO L124 PetriNetUnfolderBase]: 324/570 cut-off events. [2025-03-17 19:47:21,720 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2025-03-17 19:47:21,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1184 conditions, 570 events. 324/570 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2416 event pairs, 119 based on Foata normal form. 11/407 useless extension candidates. Maximal degree in co-relation 1154. Up to 425 conditions per place. [2025-03-17 19:47:21,724 INFO L140 encePairwiseOnDemand]: 33/42 looper letters, 36 selfloop transitions, 2 changer transitions 3/45 dead transitions. [2025-03-17 19:47:21,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 211 flow [2025-03-17 19:47:21,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:21,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 66 transitions. [2025-03-17 19:47:21,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2025-03-17 19:47:21,726 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 100 flow. Second operand 3 states and 66 transitions. [2025-03-17 19:47:21,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 211 flow [2025-03-17 19:47:21,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 45 transitions, 189 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-03-17 19:47:21,727 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 102 flow [2025-03-17 19:47:21,728 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2025-03-17 19:47:21,728 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, -3 predicate places. [2025-03-17 19:47:21,728 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 102 flow [2025-03-17 19:47:21,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 19:47:21,728 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:21,728 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 19:47:21,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:47:21,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:21,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:21,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2053956163, now seen corresponding path program 1 times [2025-03-17 19:47:21,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:21,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220553736] [2025-03-17 19:47:21,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:21,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:21,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:47:21,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:47:21,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:21,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:21,821 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 19:47:21,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220553736] [2025-03-17 19:47:21,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220553736] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:21,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447912017] [2025-03-17 19:47:21,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:21,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:21,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:21,824 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 19:47:21,825 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 19:47:21,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 19:47:21,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 19:47:21,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:21,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:21,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:47:21,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:21,910 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 19:47:21,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:21,944 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 19:47:21,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447912017] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:21,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:21,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-17 19:47:21,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361613448] [2025-03-17 19:47:21,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:21,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-17 19:47:21,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:21,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-17 19:47:21,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-17 19:47:21,953 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:21,953 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 102 flow. Second operand has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 19:47:21,953 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:21,953 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:21,953 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:22,070 INFO L124 PetriNetUnfolderBase]: 327/582 cut-off events. [2025-03-17 19:47:22,070 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2025-03-17 19:47:22,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 582 events. 327/582 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2538 event pairs, 285 based on Foata normal form. 3/408 useless extension candidates. Maximal degree in co-relation 1322. Up to 567 conditions per place. [2025-03-17 19:47:22,072 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 26 selfloop transitions, 13 changer transitions 0/42 dead transitions. [2025-03-17 19:47:22,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 42 transitions, 210 flow [2025-03-17 19:47:22,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:47:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:47:22,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2025-03-17 19:47:22,077 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.21666666666666667 [2025-03-17 19:47:22,077 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 102 flow. Second operand 10 states and 91 transitions. [2025-03-17 19:47:22,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 42 transitions, 210 flow [2025-03-17 19:47:22,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 42 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:22,078 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 174 flow [2025-03-17 19:47:22,078 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=174, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2025-03-17 19:47:22,079 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 8 predicate places. [2025-03-17 19:47:22,079 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 174 flow [2025-03-17 19:47:22,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 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 19:47:22,079 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:22,079 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:22,086 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 19:47:22,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-17 19:47:22,280 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:22,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:22,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648417, now seen corresponding path program 1 times [2025-03-17 19:47:22,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:22,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53876300] [2025-03-17 19:47:22,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:22,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:22,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:47:22,294 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:47:22,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:22,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:22,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:22,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:22,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53876300] [2025-03-17 19:47:22,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53876300] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:22,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:22,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:22,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010079931] [2025-03-17 19:47:22,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:22,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:22,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:22,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:22,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:22,366 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:22,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:47:22,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:22,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:22,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:22,466 INFO L124 PetriNetUnfolderBase]: 420/727 cut-off events. [2025-03-17 19:47:22,466 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2025-03-17 19:47:22,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1717 conditions, 727 events. 420/727 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2996 event pairs, 197 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 1682. Up to 360 conditions per place. [2025-03-17 19:47:22,471 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 50 selfloop transitions, 3 changer transitions 0/57 dead transitions. [2025-03-17 19:47:22,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 321 flow [2025-03-17 19:47:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:22,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 64 transitions. [2025-03-17 19:47:22,472 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5079365079365079 [2025-03-17 19:47:22,472 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 174 flow. Second operand 3 states and 64 transitions. [2025-03-17 19:47:22,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 321 flow [2025-03-17 19:47:22,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 310 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:22,490 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 190 flow [2025-03-17 19:47:22,490 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=163, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2025-03-17 19:47:22,491 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 9 predicate places. [2025-03-17 19:47:22,491 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 190 flow [2025-03-17 19:47:22,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:47:22,491 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:22,491 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:22,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:47:22,491 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:22,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:22,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648416, now seen corresponding path program 1 times [2025-03-17 19:47:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:22,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390200802] [2025-03-17 19:47:22,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:22,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:22,502 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:47:22,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:47:22,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:22,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:22,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:22,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:22,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390200802] [2025-03-17 19:47:22,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390200802] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:22,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:22,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:22,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141086731] [2025-03-17 19:47:22,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:22,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:22,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:22,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:22,566 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:22,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 44 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:47:22,566 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:22,566 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:22,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:22,654 INFO L124 PetriNetUnfolderBase]: 388/683 cut-off events. [2025-03-17 19:47:22,655 INFO L125 PetriNetUnfolderBase]: For 109/109 co-relation queries the response was YES. [2025-03-17 19:47:22,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1707 conditions, 683 events. 388/683 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2824 event pairs, 198 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1671. Up to 343 conditions per place. [2025-03-17 19:47:22,658 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 49 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2025-03-17 19:47:22,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 55 transitions, 314 flow [2025-03-17 19:47:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:22,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:22,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2025-03-17 19:47:22,659 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48412698412698413 [2025-03-17 19:47:22,659 INFO L175 Difference]: Start difference. First operand has 49 places, 44 transitions, 190 flow. Second operand 3 states and 61 transitions. [2025-03-17 19:47:22,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 55 transitions, 314 flow [2025-03-17 19:47:22,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 55 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:22,660 INFO L231 Difference]: Finished difference. Result has 51 places, 43 transitions, 189 flow [2025-03-17 19:47:22,660 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=51, PETRI_TRANSITIONS=43} [2025-03-17 19:47:22,661 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 11 predicate places. [2025-03-17 19:47:22,661 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 43 transitions, 189 flow [2025-03-17 19:47:22,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 19:47:22,661 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:22,661 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:22,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:47:22,661 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:22,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:22,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1888648410, now seen corresponding path program 1 times [2025-03-17 19:47:22,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:22,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656224063] [2025-03-17 19:47:22,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:22,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:22,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:47:22,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:47:22,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:22,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:22,727 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 19:47:22,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656224063] [2025-03-17 19:47:22,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656224063] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:22,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916718216] [2025-03-17 19:47:22,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:22,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:22,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:22,729 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 19:47:22,731 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 19:47:22,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:47:22,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:47:22,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:22,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:22,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 19:47:22,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:22,801 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 19:47:22,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:22,825 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 19:47:22,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916718216] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:22,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:22,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2025-03-17 19:47:22,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402449517] [2025-03-17 19:47:22,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:22,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 19:47:22,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:22,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 19:47:22,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 19:47:22,829 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:22,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 43 transitions, 189 flow. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 19:47:22,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:22,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:22,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:23,108 INFO L124 PetriNetUnfolderBase]: 1179/2014 cut-off events. [2025-03-17 19:47:23,109 INFO L125 PetriNetUnfolderBase]: For 603/603 co-relation queries the response was YES. [2025-03-17 19:47:23,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5066 conditions, 2014 events. 1179/2014 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 9671 event pairs, 257 based on Foata normal form. 17/1616 useless extension candidates. Maximal degree in co-relation 5029. Up to 504 conditions per place. [2025-03-17 19:47:23,119 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 99 selfloop transitions, 14 changer transitions 3/120 dead transitions. [2025-03-17 19:47:23,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 120 transitions, 684 flow [2025-03-17 19:47:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-17 19:47:23,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-17 19:47:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 162 transitions. [2025-03-17 19:47:23,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5510204081632653 [2025-03-17 19:47:23,121 INFO L175 Difference]: Start difference. First operand has 51 places, 43 transitions, 189 flow. Second operand 7 states and 162 transitions. [2025-03-17 19:47:23,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 120 transitions, 684 flow [2025-03-17 19:47:23,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 120 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:23,125 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 334 flow [2025-03-17 19:47:23,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=334, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2025-03-17 19:47:23,128 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2025-03-17 19:47:23,128 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 334 flow [2025-03-17 19:47:23,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 19:47:23,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:23,128 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:23,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-17 19:47:23,332 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 19:47:23,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:23,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:23,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1024172386, now seen corresponding path program 1 times [2025-03-17 19:47:23,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:23,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928429220] [2025-03-17 19:47:23,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:23,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:23,340 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-17 19:47:23,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-17 19:47:23,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:23,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:47:23,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928429220] [2025-03-17 19:47:23,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928429220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:23,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:23,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:47:23,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922070013] [2025-03-17 19:47:23,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:23,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:23,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:23,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:23,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:23,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:23,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 334 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 19:47:23,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:23,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:23,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:23,706 INFO L124 PetriNetUnfolderBase]: 1246/2150 cut-off events. [2025-03-17 19:47:23,707 INFO L125 PetriNetUnfolderBase]: For 2944/2944 co-relation queries the response was YES. [2025-03-17 19:47:23,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6198 conditions, 2150 events. 1246/2150 cut-off events. For 2944/2944 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 10756 event pairs, 1095 based on Foata normal form. 12/1879 useless extension candidates. Maximal degree in co-relation 6156. Up to 2003 conditions per place. [2025-03-17 19:47:23,715 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 47 selfloop transitions, 2 changer transitions 14/67 dead transitions. [2025-03-17 19:47:23,716 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 67 transitions, 490 flow [2025-03-17 19:47:23,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:23,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:23,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 70 transitions. [2025-03-17 19:47:23,717 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2025-03-17 19:47:23,717 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 334 flow. Second operand 4 states and 70 transitions. [2025-03-17 19:47:23,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 67 transitions, 490 flow [2025-03-17 19:47:23,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 67 transitions, 490 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:47:23,726 INFO L231 Difference]: Finished difference. Result has 64 places, 53 transitions, 337 flow [2025-03-17 19:47:23,726 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=64, PETRI_TRANSITIONS=53} [2025-03-17 19:47:23,728 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-03-17 19:47:23,728 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 53 transitions, 337 flow [2025-03-17 19:47:23,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 19:47:23,729 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:23,729 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-17 19:47:23,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:47:23,729 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:23,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:23,729 INFO L85 PathProgramCache]: Analyzing trace with hash 887784858, now seen corresponding path program 2 times [2025-03-17 19:47:23,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:23,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785121691] [2025-03-17 19:47:23,729 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:23,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:23,738 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:47:23,740 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:47:23,742 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:47:23,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:23,767 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 19:47:23,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:23,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785121691] [2025-03-17 19:47:23,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785121691] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:23,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1806408728] [2025-03-17 19:47:23,768 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:23,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:23,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:23,790 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 19:47:23,791 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 19:47:23,837 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-17 19:47:23,844 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-17 19:47:23,844 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:47:23,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:23,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:47:23,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:23,870 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 19:47:23,870 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:23,893 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 19:47:23,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1806408728] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:23,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:23,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-03-17 19:47:23,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167751916] [2025-03-17 19:47:23,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:23,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:23,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:23,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:23,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:23,898 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:23,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 53 transitions, 337 flow. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 19:47:23,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:23,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:23,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:24,053 INFO L124 PetriNetUnfolderBase]: 1178/2012 cut-off events. [2025-03-17 19:47:24,054 INFO L125 PetriNetUnfolderBase]: For 2929/2929 co-relation queries the response was YES. [2025-03-17 19:47:24,059 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5926 conditions, 2012 events. 1178/2012 cut-off events. For 2929/2929 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 10078 event pairs, 1027 based on Foata normal form. 1/1753 useless extension candidates. Maximal degree in co-relation 5893. Up to 1994 conditions per place. [2025-03-17 19:47:24,065 INFO L140 encePairwiseOnDemand]: 37/42 looper letters, 34 selfloop transitions, 15 changer transitions 0/52 dead transitions. [2025-03-17 19:47:24,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 425 flow [2025-03-17 19:47:24,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:47:24,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:47:24,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 46 transitions. [2025-03-17 19:47:24,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.27380952380952384 [2025-03-17 19:47:24,067 INFO L175 Difference]: Start difference. First operand has 64 places, 53 transitions, 337 flow. Second operand 4 states and 46 transitions. [2025-03-17 19:47:24,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 425 flow [2025-03-17 19:47:24,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 52 transitions, 409 flow, removed 2 selfloop flow, removed 7 redundant places. [2025-03-17 19:47:24,073 INFO L231 Difference]: Finished difference. Result has 58 places, 52 transitions, 341 flow [2025-03-17 19:47:24,073 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=341, PETRI_PLACES=58, PETRI_TRANSITIONS=52} [2025-03-17 19:47:24,074 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 18 predicate places. [2025-03-17 19:47:24,074 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 52 transitions, 341 flow [2025-03-17 19:47:24,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 19:47:24,075 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:24,075 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:24,081 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 19:47:24,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:24,276 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:24,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:24,276 INFO L85 PathProgramCache]: Analyzing trace with hash -427935563, now seen corresponding path program 1 times [2025-03-17 19:47:24,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:24,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993565914] [2025-03-17 19:47:24,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:24,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:24,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:47:24,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:47:24,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:24,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:24,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:24,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:24,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993565914] [2025-03-17 19:47:24,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993565914] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:24,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913998200] [2025-03-17 19:47:24,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:24,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:24,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:24,356 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 19:47:24,357 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 19:47:24,395 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:47:24,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:47:24,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:24,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:24,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 19:47:24,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:24,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:24,462 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 19:47:24,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913998200] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:24,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 19:47:24,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 6 [2025-03-17 19:47:24,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478783542] [2025-03-17 19:47:24,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:24,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:47:24,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:24,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:47:24,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2025-03-17 19:47:24,463 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:24,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 52 transitions, 341 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 19:47:24,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:24,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:24,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:24,674 INFO L124 PetriNetUnfolderBase]: 1460/2513 cut-off events. [2025-03-17 19:47:24,674 INFO L125 PetriNetUnfolderBase]: For 4469/4469 co-relation queries the response was YES. [2025-03-17 19:47:24,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7253 conditions, 2513 events. 1460/2513 cut-off events. For 4469/4469 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 12838 event pairs, 221 based on Foata normal form. 105/2282 useless extension candidates. Maximal degree in co-relation 7169. Up to 1244 conditions per place. [2025-03-17 19:47:24,685 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 83 selfloop transitions, 12 changer transitions 3/101 dead transitions. [2025-03-17 19:47:24,685 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 101 transitions, 729 flow [2025-03-17 19:47:24,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:47:24,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:47:24,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 119 transitions. [2025-03-17 19:47:24,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4722222222222222 [2025-03-17 19:47:24,686 INFO L175 Difference]: Start difference. First operand has 58 places, 52 transitions, 341 flow. Second operand 6 states and 119 transitions. [2025-03-17 19:47:24,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 101 transitions, 729 flow [2025-03-17 19:47:24,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 101 transitions, 699 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:24,690 INFO L231 Difference]: Finished difference. Result has 63 places, 59 transitions, 457 flow [2025-03-17 19:47:24,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=457, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2025-03-17 19:47:24,691 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 23 predicate places. [2025-03-17 19:47:24,691 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 457 flow [2025-03-17 19:47:24,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 19:47:24,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:24,691 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:24,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-17 19:47:24,892 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 19:47:24,892 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:24,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash -273781554, now seen corresponding path program 1 times [2025-03-17 19:47:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:24,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990252307] [2025-03-17 19:47:24,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:24,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:24,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-03-17 19:47:24,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-03-17 19:47:24,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:24,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:24,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:47:24,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:24,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990252307] [2025-03-17 19:47:24,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990252307] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:24,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:24,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:24,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806363160] [2025-03-17 19:47:24,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:24,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:47:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:24,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:47:24,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:47:24,937 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:24,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 457 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 19:47:24,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:24,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:24,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:25,134 INFO L124 PetriNetUnfolderBase]: 1329/2292 cut-off events. [2025-03-17 19:47:25,135 INFO L125 PetriNetUnfolderBase]: For 5986/5986 co-relation queries the response was YES. [2025-03-17 19:47:25,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7048 conditions, 2292 events. 1329/2292 cut-off events. For 5986/5986 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11632 event pairs, 351 based on Foata normal form. 90/2062 useless extension candidates. Maximal degree in co-relation 6975. Up to 1521 conditions per place. [2025-03-17 19:47:25,149 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 73 selfloop transitions, 5 changer transitions 3/84 dead transitions. [2025-03-17 19:47:25,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 84 transitions, 694 flow [2025-03-17 19:47:25,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:47:25,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:47:25,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 86 transitions. [2025-03-17 19:47:25,151 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4095238095238095 [2025-03-17 19:47:25,151 INFO L175 Difference]: Start difference. First operand has 63 places, 59 transitions, 457 flow. Second operand 5 states and 86 transitions. [2025-03-17 19:47:25,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 84 transitions, 694 flow [2025-03-17 19:47:25,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 84 transitions, 646 flow, removed 21 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:25,158 INFO L231 Difference]: Finished difference. Result has 64 places, 58 transitions, 413 flow [2025-03-17 19:47:25,160 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=403, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=413, PETRI_PLACES=64, PETRI_TRANSITIONS=58} [2025-03-17 19:47:25,160 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 24 predicate places. [2025-03-17 19:47:25,161 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 58 transitions, 413 flow [2025-03-17 19:47:25,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 19:47:25,161 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:25,162 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:25,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-17 19:47:25,162 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:25,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash -82740538, now seen corresponding path program 1 times [2025-03-17 19:47:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35885969] [2025-03-17 19:47:25,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:25,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 19:47:25,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:25,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:25,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 19:47:25,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:25,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35885969] [2025-03-17 19:47:25,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35885969] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:25,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:25,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:47:25,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164535211] [2025-03-17 19:47:25,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:25,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:47:25,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:25,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:47:25,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:47:25,203 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:25,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 58 transitions, 413 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 19:47:25,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:25,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:25,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:25,357 INFO L124 PetriNetUnfolderBase]: 1278/2227 cut-off events. [2025-03-17 19:47:25,357 INFO L125 PetriNetUnfolderBase]: For 5097/5097 co-relation queries the response was YES. [2025-03-17 19:47:25,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6588 conditions, 2227 events. 1278/2227 cut-off events. For 5097/5097 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 11795 event pairs, 1138 based on Foata normal form. 50/1957 useless extension candidates. Maximal degree in co-relation 6515. Up to 2219 conditions per place. [2025-03-17 19:47:25,365 INFO L140 encePairwiseOnDemand]: 40/42 looper letters, 50 selfloop transitions, 1 changer transitions 0/54 dead transitions. [2025-03-17 19:47:25,365 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 54 transitions, 472 flow [2025-03-17 19:47:25,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:25,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 45 transitions. [2025-03-17 19:47:25,367 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.35714285714285715 [2025-03-17 19:47:25,367 INFO L175 Difference]: Start difference. First operand has 64 places, 58 transitions, 413 flow. Second operand 3 states and 45 transitions. [2025-03-17 19:47:25,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 54 transitions, 472 flow [2025-03-17 19:47:25,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 54 transitions, 459 flow, removed 3 selfloop flow, removed 4 redundant places. [2025-03-17 19:47:25,372 INFO L231 Difference]: Finished difference. Result has 60 places, 54 transitions, 359 flow [2025-03-17 19:47:25,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=359, PETRI_PLACES=60, PETRI_TRANSITIONS=54} [2025-03-17 19:47:25,374 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 20 predicate places. [2025-03-17 19:47:25,374 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 54 transitions, 359 flow [2025-03-17 19:47:25,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 19:47:25,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:25,374 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:25,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-17 19:47:25,374 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:25,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:25,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1164813029, now seen corresponding path program 2 times [2025-03-17 19:47:25,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:25,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049866881] [2025-03-17 19:47:25,376 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:25,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:25,382 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-03-17 19:47:25,391 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:25,392 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:47:25,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:25,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049866881] [2025-03-17 19:47:25,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049866881] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:25,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961184306] [2025-03-17 19:47:25,476 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:25,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:25,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:25,478 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 19:47:25,479 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 19:47:25,519 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-03-17 19:47:25,534 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:25,534 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:47:25,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:25,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:47:25,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:25,627 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:25,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:25,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961184306] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:25,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:25,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 3] total 11 [2025-03-17 19:47:25,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109611995] [2025-03-17 19:47:25,678 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:25,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:47:25,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:25,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:47:25,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=82, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:47:25,679 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:25,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 54 transitions, 359 flow. Second operand has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 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 19:47:25,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:25,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:25,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:26,146 INFO L124 PetriNetUnfolderBase]: 3074/5291 cut-off events. [2025-03-17 19:47:26,146 INFO L125 PetriNetUnfolderBase]: For 11463/11463 co-relation queries the response was YES. [2025-03-17 19:47:26,154 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14661 conditions, 5291 events. 3074/5291 cut-off events. For 11463/11463 co-relation queries the response was YES. Maximal size of possible extension queue 123. Compared 28202 event pairs, 764 based on Foata normal form. 343/4842 useless extension candidates. Maximal degree in co-relation 14640. Up to 1310 conditions per place. [2025-03-17 19:47:26,165 INFO L140 encePairwiseOnDemand]: 35/42 looper letters, 133 selfloop transitions, 29 changer transitions 24/189 dead transitions. [2025-03-17 19:47:26,165 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 1382 flow [2025-03-17 19:47:26,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:47:26,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:47:26,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 213 transitions. [2025-03-17 19:47:26,167 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5071428571428571 [2025-03-17 19:47:26,167 INFO L175 Difference]: Start difference. First operand has 60 places, 54 transitions, 359 flow. Second operand 10 states and 213 transitions. [2025-03-17 19:47:26,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 1382 flow [2025-03-17 19:47:26,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 189 transitions, 1381 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:47:26,178 INFO L231 Difference]: Finished difference. Result has 74 places, 77 transitions, 728 flow [2025-03-17 19:47:26,178 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=352, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=728, PETRI_PLACES=74, PETRI_TRANSITIONS=77} [2025-03-17 19:47:26,179 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 34 predicate places. [2025-03-17 19:47:26,179 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 77 transitions, 728 flow [2025-03-17 19:47:26,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.384615384615385) internal successors, (148), 13 states have internal predecessors, (148), 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 19:47:26,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:26,179 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:26,189 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 19:47:26,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:26,380 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:26,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:26,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1950766515, now seen corresponding path program 1 times [2025-03-17 19:47:26,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:26,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221963864] [2025-03-17 19:47:26,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:26,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:26,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 19:47:26,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:26,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:26,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:26,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:26,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221963864] [2025-03-17 19:47:26,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221963864] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:26,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626855826] [2025-03-17 19:47:26,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:26,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:26,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:26,468 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 19:47:26,469 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 19:47:26,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-17 19:47:26,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-17 19:47:26,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:26,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:26,522 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-17 19:47:26,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:26,556 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 19:47:26,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626855826] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:26,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:26,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-17 19:47:26,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542808336] [2025-03-17 19:47:26,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:26,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-03-17 19:47:26,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:26,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-03-17 19:47:26,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-03-17 19:47:26,612 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:26,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 77 transitions, 728 flow. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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 19:47:26,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:26,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:26,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:27,504 INFO L124 PetriNetUnfolderBase]: 6676/11442 cut-off events. [2025-03-17 19:47:27,504 INFO L125 PetriNetUnfolderBase]: For 52462/52462 co-relation queries the response was YES. [2025-03-17 19:47:27,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34997 conditions, 11442 events. 6676/11442 cut-off events. For 52462/52462 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 71145 event pairs, 1759 based on Foata normal form. 538/10275 useless extension candidates. Maximal degree in co-relation 34969. Up to 2583 conditions per place. [2025-03-17 19:47:27,546 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 177 selfloop transitions, 96 changer transitions 3/279 dead transitions. [2025-03-17 19:47:27,546 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 279 transitions, 2646 flow [2025-03-17 19:47:27,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-17 19:47:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-17 19:47:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 287 transitions. [2025-03-17 19:47:27,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5694444444444444 [2025-03-17 19:47:27,551 INFO L175 Difference]: Start difference. First operand has 74 places, 77 transitions, 728 flow. Second operand 12 states and 287 transitions. [2025-03-17 19:47:27,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 279 transitions, 2646 flow [2025-03-17 19:47:27,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 279 transitions, 2592 flow, removed 16 selfloop flow, removed 3 redundant places. [2025-03-17 19:47:27,586 INFO L231 Difference]: Finished difference. Result has 92 places, 140 transitions, 1858 flow [2025-03-17 19:47:27,586 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=665, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1858, PETRI_PLACES=92, PETRI_TRANSITIONS=140} [2025-03-17 19:47:27,587 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 52 predicate places. [2025-03-17 19:47:27,587 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 140 transitions, 1858 flow [2025-03-17 19:47:27,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 13 states have internal predecessors, (139), 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 19:47:27,587 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:27,587 INFO L206 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:27,593 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 19:47:27,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:27,788 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:27,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:27,788 INFO L85 PathProgramCache]: Analyzing trace with hash 714071672, now seen corresponding path program 1 times [2025-03-17 19:47:27,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:27,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129623867] [2025-03-17 19:47:27,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:27,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 19:47:27,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 19:47:27,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:27,810 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-17 19:47:27,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129623867] [2025-03-17 19:47:27,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129623867] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:27,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408020883] [2025-03-17 19:47:27,875 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:27,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:27,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:27,878 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 19:47:27,878 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 19:47:27,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-03-17 19:47:27,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-03-17 19:47:27,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:27,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:27,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 19:47:27,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:28,072 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-17 19:47:28,072 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-17 19:47:28,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408020883] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:28,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:28,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 5, 5] total 12 [2025-03-17 19:47:28,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769969693] [2025-03-17 19:47:28,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:28,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 19:47:28,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:28,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 19:47:28,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-03-17 19:47:28,234 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:28,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 140 transitions, 1858 flow. Second operand has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 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 19:47:28,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:28,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:28,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:29,820 INFO L124 PetriNetUnfolderBase]: 9844/16989 cut-off events. [2025-03-17 19:47:29,820 INFO L125 PetriNetUnfolderBase]: For 86421/86421 co-relation queries the response was YES. [2025-03-17 19:47:29,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54919 conditions, 16989 events. 9844/16989 cut-off events. For 86421/86421 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 116008 event pairs, 4639 based on Foata normal form. 434/14853 useless extension candidates. Maximal degree in co-relation 54882. Up to 7761 conditions per place. [2025-03-17 19:47:29,886 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 188 selfloop transitions, 54 changer transitions 8/253 dead transitions. [2025-03-17 19:47:29,886 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 253 transitions, 3574 flow [2025-03-17 19:47:29,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 19:47:29,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-17 19:47:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2025-03-17 19:47:29,887 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.33095238095238094 [2025-03-17 19:47:29,887 INFO L175 Difference]: Start difference. First operand has 92 places, 140 transitions, 1858 flow. Second operand 10 states and 139 transitions. [2025-03-17 19:47:29,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 253 transitions, 3574 flow [2025-03-17 19:47:29,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 253 transitions, 3318 flow, removed 128 selfloop flow, removed 0 redundant places. [2025-03-17 19:47:29,979 INFO L231 Difference]: Finished difference. Result has 105 places, 163 transitions, 2388 flow [2025-03-17 19:47:29,980 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1758, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2388, PETRI_PLACES=105, PETRI_TRANSITIONS=163} [2025-03-17 19:47:29,980 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 65 predicate places. [2025-03-17 19:47:29,980 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 163 transitions, 2388 flow [2025-03-17 19:47:29,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.071428571428571) internal successors, (127), 14 states have internal predecessors, (127), 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 19:47:29,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:29,980 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:29,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 19:47:30,181 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,SelfDestructingSolverStorable14 [2025-03-17 19:47:30,181 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:30,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:30,182 INFO L85 PathProgramCache]: Analyzing trace with hash -359733733, now seen corresponding path program 3 times [2025-03-17 19:47:30,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:30,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604967560] [2025-03-17 19:47:30,182 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:47:30,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:30,192 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-03-17 19:47:30,202 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-03-17 19:47:30,203 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 19:47:30,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-17 19:47:30,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:30,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604967560] [2025-03-17 19:47:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604967560] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:30,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93350272] [2025-03-17 19:47:30,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 19:47:30,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:30,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:30,323 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 19:47:30,324 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 19:47:30,366 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 34 statements into 6 equivalence classes. [2025-03-17 19:47:30,379 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 19 of 34 statements. [2025-03-17 19:47:30,379 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 19:47:30,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:30,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 19:47:30,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:30,422 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 19:47:30,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-17 19:47:30,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93350272] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:30,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:30,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 7 [2025-03-17 19:47:30,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695821282] [2025-03-17 19:47:30,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:30,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-17 19:47:30,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:30,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-17 19:47:30,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-17 19:47:30,469 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:30,469 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 163 transitions, 2388 flow. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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 19:47:30,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:30,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:30,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:31,884 INFO L124 PetriNetUnfolderBase]: 9059/15669 cut-off events. [2025-03-17 19:47:31,885 INFO L125 PetriNetUnfolderBase]: For 74124/74124 co-relation queries the response was YES. [2025-03-17 19:47:31,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46217 conditions, 15669 events. 9059/15669 cut-off events. For 74124/74124 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 107163 event pairs, 5624 based on Foata normal form. 508/13707 useless extension candidates. Maximal degree in co-relation 46174. Up to 11087 conditions per place. [2025-03-17 19:47:31,966 INFO L140 encePairwiseOnDemand]: 34/42 looper letters, 146 selfloop transitions, 5 changer transitions 58/212 dead transitions. [2025-03-17 19:47:31,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 212 transitions, 3104 flow [2025-03-17 19:47:31,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-17 19:47:31,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-03-17 19:47:31,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 97 transitions. [2025-03-17 19:47:31,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.28869047619047616 [2025-03-17 19:47:31,967 INFO L175 Difference]: Start difference. First operand has 105 places, 163 transitions, 2388 flow. Second operand 8 states and 97 transitions. [2025-03-17 19:47:31,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 212 transitions, 3104 flow [2025-03-17 19:47:32,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 212 transitions, 2692 flow, removed 138 selfloop flow, removed 9 redundant places. [2025-03-17 19:47:32,085 INFO L231 Difference]: Finished difference. Result has 100 places, 145 transitions, 1736 flow [2025-03-17 19:47:32,085 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1903, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1736, PETRI_PLACES=100, PETRI_TRANSITIONS=145} [2025-03-17 19:47:32,086 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 60 predicate places. [2025-03-17 19:47:32,086 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 145 transitions, 1736 flow [2025-03-17 19:47:32,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 9 states have internal predecessors, (79), 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 19:47:32,086 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:32,086 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 19:47:32,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 19:47:32,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-17 19:47:32,290 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:32,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:32,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1268252534, now seen corresponding path program 2 times [2025-03-17 19:47:32,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:32,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757491557] [2025-03-17 19:47:32,291 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:32,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:32,304 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-03-17 19:47:32,308 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 7 of 43 statements. [2025-03-17 19:47:32,309 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 19:47:32,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:32,350 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2025-03-17 19:47:32,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:32,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757491557] [2025-03-17 19:47:32,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757491557] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:47:32,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:47:32,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 19:47:32,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312160317] [2025-03-17 19:47:32,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:47:32,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:47:32,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:32,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:47:32,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:47:32,351 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:32,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 145 transitions, 1736 flow. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:32,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:32,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:32,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:33,040 INFO L124 PetriNetUnfolderBase]: 3700/6265 cut-off events. [2025-03-17 19:47:33,041 INFO L125 PetriNetUnfolderBase]: For 21015/21015 co-relation queries the response was YES. [2025-03-17 19:47:33,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19739 conditions, 6265 events. 3700/6265 cut-off events. For 21015/21015 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 34927 event pairs, 1660 based on Foata normal form. 12/5778 useless extension candidates. Maximal degree in co-relation 19709. Up to 5352 conditions per place. [2025-03-17 19:47:33,061 INFO L140 encePairwiseOnDemand]: 39/42 looper letters, 141 selfloop transitions, 11 changer transitions 2/157 dead transitions. [2025-03-17 19:47:33,061 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 157 transitions, 2079 flow [2025-03-17 19:47:33,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:47:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:47:33,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2025-03-17 19:47:33,062 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.38095238095238093 [2025-03-17 19:47:33,062 INFO L175 Difference]: Start difference. First operand has 100 places, 145 transitions, 1736 flow. Second operand 3 states and 48 transitions. [2025-03-17 19:47:33,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 157 transitions, 2079 flow [2025-03-17 19:47:33,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 157 transitions, 2006 flow, removed 21 selfloop flow, removed 7 redundant places. [2025-03-17 19:47:33,091 INFO L231 Difference]: Finished difference. Result has 89 places, 144 transitions, 1657 flow [2025-03-17 19:47:33,091 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1635, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=89, PETRI_TRANSITIONS=144} [2025-03-17 19:47:33,092 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 49 predicate places. [2025-03-17 19:47:33,092 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 144 transitions, 1657 flow [2025-03-17 19:47:33,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:47:33,092 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:33,092 INFO L206 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:33,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-03-17 19:47:33,092 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:33,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1647362506, now seen corresponding path program 1 times [2025-03-17 19:47:33,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:33,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033919534] [2025-03-17 19:47:33,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:33,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 19:47:33,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 19:47:33,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:33,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:33,306 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 19:47:33,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033919534] [2025-03-17 19:47:33,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033919534] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:33,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804356190] [2025-03-17 19:47:33,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:47:33,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:33,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:33,309 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 19:47:33,310 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 19:47:33,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 19:47:33,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 19:47:33,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:47:33,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:33,386 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 19:47:33,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 19:47:33,437 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 19:47:33,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804356190] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:33,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:33,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2025-03-17 19:47:33,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894726969] [2025-03-17 19:47:33,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:33,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-17 19:47:33,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:33,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-17 19:47:33,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-03-17 19:47:33,582 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 42 [2025-03-17 19:47:33,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 144 transitions, 1657 flow. Second operand has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 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 19:47:33,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:33,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 42 [2025-03-17 19:47:33,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:34,726 INFO L124 PetriNetUnfolderBase]: 7432/12517 cut-off events. [2025-03-17 19:47:34,726 INFO L125 PetriNetUnfolderBase]: For 85383/85383 co-relation queries the response was YES. [2025-03-17 19:47:34,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38338 conditions, 12517 events. 7432/12517 cut-off events. For 85383/85383 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 69741 event pairs, 1165 based on Foata normal form. 328/11854 useless extension candidates. Maximal degree in co-relation 38309. Up to 2470 conditions per place. [2025-03-17 19:47:34,778 INFO L140 encePairwiseOnDemand]: 38/42 looper letters, 216 selfloop transitions, 241 changer transitions 0/460 dead transitions. [2025-03-17 19:47:34,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 460 transitions, 4683 flow [2025-03-17 19:47:34,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-17 19:47:34,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-03-17 19:47:34,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 411 transitions. [2025-03-17 19:47:34,780 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4448051948051948 [2025-03-17 19:47:34,780 INFO L175 Difference]: Start difference. First operand has 89 places, 144 transitions, 1657 flow. Second operand 22 states and 411 transitions. [2025-03-17 19:47:34,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 460 transitions, 4683 flow [2025-03-17 19:47:34,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 460 transitions, 4641 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:47:34,823 INFO L231 Difference]: Finished difference. Result has 128 places, 280 transitions, 4371 flow [2025-03-17 19:47:34,823 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=1635, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=4371, PETRI_PLACES=128, PETRI_TRANSITIONS=280} [2025-03-17 19:47:34,824 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 88 predicate places. [2025-03-17 19:47:34,824 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 280 transitions, 4371 flow [2025-03-17 19:47:34,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.956521739130435) internal successors, (252), 23 states have internal predecessors, (252), 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 19:47:34,824 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:47:34,824 INFO L206 CegarLoopForPetriNet]: trace histogram [21, 21, 20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:34,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 19:47:35,024 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,SelfDestructingSolverStorable17 [2025-03-17 19:47:35,025 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2025-03-17 19:47:35,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:47:35,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1645110782, now seen corresponding path program 2 times [2025-03-17 19:47:35,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:47:35,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039237363] [2025-03-17 19:47:35,026 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:35,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:47:35,040 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-17 19:47:35,056 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 19:47:35,058 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:47:35,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:35,157 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2025-03-17 19:47:35,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:47:35,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039237363] [2025-03-17 19:47:35,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039237363] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 19:47:35,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980220186] [2025-03-17 19:47:35,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 19:47:35,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:35,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:47:35,159 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 19:47:35,161 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 19:47:35,218 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 79 statements into 2 equivalence classes. [2025-03-17 19:47:35,259 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 79 of 79 statements. [2025-03-17 19:47:35,259 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 19:47:35,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:47:35,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-03-17 19:47:35,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 19:47:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2025-03-17 19:47:35,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 19:47:35,892 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2025-03-17 19:47:35,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980220186] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 19:47:35,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 19:47:35,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 7, 7] total 16 [2025-03-17 19:47:35,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269811722] [2025-03-17 19:47:35,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 19:47:35,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 19:47:35,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:47:35,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 19:47:35,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=195, Unknown=0, NotChecked=0, Total=306 [2025-03-17 19:47:35,907 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 42 [2025-03-17 19:47:35,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 280 transitions, 4371 flow. Second operand has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 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 19:47:35,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:47:35,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 42 [2025-03-17 19:47:35,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:47:38,694 INFO L124 PetriNetUnfolderBase]: 14800/24915 cut-off events. [2025-03-17 19:47:38,695 INFO L125 PetriNetUnfolderBase]: For 128305/128305 co-relation queries the response was YES. [2025-03-17 19:47:38,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85436 conditions, 24915 events. 14800/24915 cut-off events. For 128305/128305 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 164183 event pairs, 6628 based on Foata normal form. 40/22984 useless extension candidates. Maximal degree in co-relation 85387. Up to 10743 conditions per place. [2025-03-17 19:47:38,828 INFO L140 encePairwiseOnDemand]: 36/42 looper letters, 0 selfloop transitions, 0 changer transitions 581/581 dead transitions. [2025-03-17 19:47:38,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 581 transitions, 9932 flow [2025-03-17 19:47:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-03-17 19:47:38,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-03-17 19:47:38,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 110 transitions. [2025-03-17 19:47:38,830 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2025-03-17 19:47:38,830 INFO L175 Difference]: Start difference. First operand has 128 places, 280 transitions, 4371 flow. Second operand 11 states and 110 transitions. [2025-03-17 19:47:38,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 581 transitions, 9932 flow [2025-03-17 19:47:39,142 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 581 transitions, 6729 flow, removed 650 selfloop flow, removed 34 redundant places. [2025-03-17 19:47:39,145 INFO L231 Difference]: Finished difference. Result has 102 places, 0 transitions, 0 flow [2025-03-17 19:47:39,145 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=2721, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=102, PETRI_TRANSITIONS=0} [2025-03-17 19:47:39,146 INFO L279 CegarLoopForPetriNet]: 40 programPoint places, 62 predicate places. [2025-03-17 19:47:39,146 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 0 transitions, 0 flow [2025-03-17 19:47:39,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 18 states have internal predecessors, (145), 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 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2025-03-17 19:47:39,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2025-03-17 19:47:39,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2025-03-17 19:47:39,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 19:47:39,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 19:47:39,350 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:47:39,353 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-17 19:47:39,354 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-17 19:47:39,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.03 07:47:39 BasicIcfg [2025-03-17 19:47:39,359 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-17 19:47:39,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-17 19:47:39,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-17 19:47:39,360 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-17 19:47:39,360 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:47:20" (3/4) ... [2025-03-17 19:47:39,361 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-17 19:47:39,363 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-17 19:47:39,363 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-17 19:47:39,367 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 59 nodes and edges [2025-03-17 19:47:39,368 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2025-03-17 19:47:39,368 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-03-17 19:47:39,369 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-17 19:47:39,435 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-17 19:47:39,436 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-17 19:47:39,436 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-17 19:47:39,436 INFO L158 Benchmark]: Toolchain (without parser) took 19990.91ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 105.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2025-03-17 19:47:39,437 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 126.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:47:39,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.66ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 94.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:47:39,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.25ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:47:39,438 INFO L158 Benchmark]: Boogie Preprocessor took 45.69ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 19:47:39,438 INFO L158 Benchmark]: IcfgBuilder took 560.27ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 44.9MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-03-17 19:47:39,439 INFO L158 Benchmark]: TraceAbstraction took 19075.30ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 44.9MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2025-03-17 19:47:39,439 INFO L158 Benchmark]: Witness Printer took 76.31ms. Allocated memory is still 2.8GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-17 19:47:39,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 126.2MB in the end (delta: 307.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.66ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 94.1MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.25ms. Allocated memory is still 142.6MB. Free memory was 94.1MB in the beginning and 92.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.69ms. Allocated memory is still 142.6MB. Free memory was 92.1MB in the beginning and 91.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 560.27ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 44.9MB in the end (delta: 45.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 19075.30ms. Allocated memory was 142.6MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 44.9MB in the beginning and 1.6GB in the end (delta: -1.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 76.31ms. Allocated memory is still 2.8GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 64]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 65]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: 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, 64 locations, 72 edges, 28 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: 18.9s, OverallIterations: 19, TraceHistogramMax: 21, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 12.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1225 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1205 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 115 mSDsCounter, 146 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2172 IncrementalHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 146 mSolverCounterUnsat, 2 mSDtfsCounter, 2172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 641 GetRequests, 490 SyntacticMatches, 2 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4371occurred in iteration=18, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 726 NumberOfCodeBlocks, 636 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 960 ConstructedInterpolants, 0 QuantifiedInterpolants, 5150 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1744 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 39 InterpolantComputations, 10 PerfectInterpolantSequences, 1345/1738 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 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-17 19:47:39,452 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