./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-node-subst.wvr.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:48:45,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:48:45,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:48:45,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:48:45,966 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:48:45,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:48:45,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:48:45,989 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:48:45,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:48:45,990 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:48:45,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:48:45,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:48:45,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:48:45,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:48:45,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:48:45,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:48:45,993 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:48:45,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:48:45,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:48:45,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:48:45,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:48:45,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:48:45,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:48:45,995 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-jdk21/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 -> 3b43103ca9a91605874c4d895f03c4116805b9b245b91cffe9bd63255503e5a0 [2025-02-06 18:48:46,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:48:46,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:48:46,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:48:46,224 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:48:46,224 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:48:46,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2025-02-06 18:48:47,344 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/847013b35/0a59a2daf4544a29a39a911d8d99ed31/FLAGf9d14246a [2025-02-06 18:48:47,604 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:48:47,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/chl-node-subst.wvr.c [2025-02-06 18:48:47,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/847013b35/0a59a2daf4544a29a39a911d8d99ed31/FLAGf9d14246a [2025-02-06 18:48:47,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/847013b35/0a59a2daf4544a29a39a911d8d99ed31 [2025-02-06 18:48:47,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:48:47,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:48:47,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:48:47,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:48:47,636 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:48:47,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b328b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47, skipping insertion in model container [2025-02-06 18:48:47,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,650 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:48:47,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:48:47,810 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:48:47,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:48:47,861 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:48:47,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47 WrapperNode [2025-02-06 18:48:47,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:48:47,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:48:47,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:48:47,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:48:47,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,884 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,919 INFO L138 Inliner]: procedures = 26, calls = 52, calls flagged for inlining = 23, calls inlined = 35, statements flattened = 474 [2025-02-06 18:48:47,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:48:47,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:48:47,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:48:47,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:48:47,932 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,932 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,935 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,954 INFO L175 MemorySlicer]: Split 26 memory accesses to 3 slices as follows [2, 15, 9]. 58 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 6 writes are split as follows [0, 3, 3]. [2025-02-06 18:48:47,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,962 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,967 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:48:47,976 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:48:47,976 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:48:47,976 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:48:47,980 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (1/1) ... [2025-02-06 18:48:47,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:48:47,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:48,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 18:48:48,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 18:48:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:48:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:48:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-06 18:48:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-06 18:48:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-06 18:48:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-06 18:48:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:48:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:48:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:48:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:48:48,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:48:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:48:48,031 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 18:48:48,139 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:48:48,140 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:48:48,662 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:48:48,662 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:48:48,948 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:48:48,949 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:48:48,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:48:48 BoogieIcfgContainer [2025-02-06 18:48:48,952 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:48:48,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:48:48,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:48:48,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:48:48,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:48:47" (1/3) ... [2025-02-06 18:48:48,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c87ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:48:48, skipping insertion in model container [2025-02-06 18:48:48,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:48:47" (2/3) ... [2025-02-06 18:48:48,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c87ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:48:48, skipping insertion in model container [2025-02-06 18:48:48,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:48:48" (3/3) ... [2025-02-06 18:48:48,958 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-node-subst.wvr.c [2025-02-06 18:48:48,969 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:48:48,971 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-node-subst.wvr.c that has 4 procedures, 126 locations, 1 initial locations, 6 loop locations, and 42 error locations. [2025-02-06 18:48:48,971 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:48:49,034 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-06 18:48:49,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 140 transitions, 301 flow [2025-02-06 18:48:49,135 INFO L124 PetriNetUnfolderBase]: 15/137 cut-off events. [2025-02-06 18:48:49,136 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-06 18:48:49,140 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 137 events. 15/137 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 407 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 113. Up to 2 conditions per place. [2025-02-06 18:48:49,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 140 transitions, 301 flow [2025-02-06 18:48:49,143 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 130 places, 135 transitions, 285 flow [2025-02-06 18:48:49,148 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:48:49,160 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;@58c4d32f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:48:49,160 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-02-06 18:48:49,163 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:48:49,163 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2025-02-06 18:48:49,163 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:48:49,163 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:49,164 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-06 18:48:49,164 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:49,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:49,168 INFO L85 PathProgramCache]: Analyzing trace with hash 43291, now seen corresponding path program 1 times [2025-02-06 18:48:49,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:49,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959344526] [2025-02-06 18:48:49,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:49,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:49,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-06 18:48:49,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-06 18:48:49,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:49,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:49,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:49,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959344526] [2025-02-06 18:48:49,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959344526] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:49,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:49,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954595443] [2025-02-06 18:48:49,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:49,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:49,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:49,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:49,346 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:49,364 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:49,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 285 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-06 18:48:49,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:49,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:49,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:50,252 INFO L124 PetriNetUnfolderBase]: 4133/8026 cut-off events. [2025-02-06 18:48:50,253 INFO L125 PetriNetUnfolderBase]: For 253/253 co-relation queries the response was YES. [2025-02-06 18:48:50,268 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 8026 events. 4133/8026 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 541. Compared 65909 event pairs, 2732 based on Foata normal form. 2/6384 useless extension candidates. Maximal degree in co-relation 13014. Up to 5498 conditions per place. [2025-02-06 18:48:50,335 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 61 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2025-02-06 18:48:50,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 133 transitions, 405 flow [2025-02-06 18:48:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2025-02-06 18:48:50,347 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2025-02-06 18:48:50,348 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 285 flow. Second operand 3 states and 286 transitions. [2025-02-06 18:48:50,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 133 transitions, 405 flow [2025-02-06 18:48:50,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 5 redundant places. [2025-02-06 18:48:50,356 INFO L231 Difference]: Finished difference. Result has 125 places, 133 transitions, 274 flow [2025-02-06 18:48:50,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=125, PETRI_TRANSITIONS=133} [2025-02-06 18:48:50,362 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2025-02-06 18:48:50,362 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 133 transitions, 274 flow [2025-02-06 18:48:50,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-06 18:48:50,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:50,363 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-06 18:48:50,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 18:48:50,363 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:50,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:50,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1343291, now seen corresponding path program 1 times [2025-02-06 18:48:50,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:50,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591211801] [2025-02-06 18:48:50,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:50,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:50,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 18:48:50,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 18:48:50,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:50,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:50,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:50,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591211801] [2025-02-06 18:48:50,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591211801] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:50,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:50,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:50,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80552005] [2025-02-06 18:48:50,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:50,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:50,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:50,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:50,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:50,454 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:50,455 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 133 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-06 18:48:50,455 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:50,455 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:50,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:51,092 INFO L124 PetriNetUnfolderBase]: 4133/8024 cut-off events. [2025-02-06 18:48:51,093 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2025-02-06 18:48:51,106 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13658 conditions, 8024 events. 4133/8024 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66066 event pairs, 2732 based on Foata normal form. 0/6382 useless extension candidates. Maximal degree in co-relation 13652. Up to 5496 conditions per place. [2025-02-06 18:48:51,145 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 59 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2025-02-06 18:48:51,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 131 transitions, 390 flow [2025-02-06 18:48:51,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:51,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2025-02-06 18:48:51,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2025-02-06 18:48:51,147 INFO L175 Difference]: Start difference. First operand has 125 places, 133 transitions, 274 flow. Second operand 3 states and 284 transitions. [2025-02-06 18:48:51,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 131 transitions, 390 flow [2025-02-06 18:48:51,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 131 transitions, 389 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:51,149 INFO L231 Difference]: Finished difference. Result has 124 places, 131 transitions, 271 flow [2025-02-06 18:48:51,149 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=124, PETRI_TRANSITIONS=131} [2025-02-06 18:48:51,150 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -6 predicate places. [2025-02-06 18:48:51,153 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 131 transitions, 271 flow [2025-02-06 18:48:51,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 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) [2025-02-06 18:48:51,154 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:51,154 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:48:51,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:48:51,154 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:51,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:51,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1290942784, now seen corresponding path program 1 times [2025-02-06 18:48:51,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:51,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065951220] [2025-02-06 18:48:51,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:51,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:51,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:48:51,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:48:51,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:51,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:51,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:51,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:51,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065951220] [2025-02-06 18:48:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065951220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:51,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:51,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:48:51,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949419597] [2025-02-06 18:48:51,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:51,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:48:51,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:51,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:48:51,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:48:51,284 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:48:51,285 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 131 transitions, 271 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-02-06 18:48:51,285 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:51,285 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:48:51,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:51,995 INFO L124 PetriNetUnfolderBase]: 4136/8036 cut-off events. [2025-02-06 18:48:51,996 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2025-02-06 18:48:52,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13686 conditions, 8036 events. 4136/8036 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66136 event pairs, 2732 based on Foata normal form. 3/6394 useless extension candidates. Maximal degree in co-relation 13679. Up to 5506 conditions per place. [2025-02-06 18:48:52,026 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 63 selfloop transitions, 12 changer transitions 0/140 dead transitions. [2025-02-06 18:48:52,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 140 transitions, 439 flow [2025-02-06 18:48:52,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:48:52,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:48:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-02-06 18:48:52,030 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2025-02-06 18:48:52,031 INFO L175 Difference]: Start difference. First operand has 124 places, 131 transitions, 271 flow. Second operand 4 states and 369 transitions. [2025-02-06 18:48:52,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 140 transitions, 439 flow [2025-02-06 18:48:52,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 140 transitions, 438 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:52,034 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 357 flow [2025-02-06 18:48:52,036 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=357, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2025-02-06 18:48:52,037 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -2 predicate places. [2025-02-06 18:48:52,037 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 357 flow [2025-02-06 18:48:52,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2025-02-06 18:48:52,038 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:52,038 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 18:48:52,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:48:52,038 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:52,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:52,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1290942774, now seen corresponding path program 1 times [2025-02-06 18:48:52,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:52,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213660992] [2025-02-06 18:48:52,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:52,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:52,047 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 18:48:52,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 18:48:52,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:52,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:52,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:52,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213660992] [2025-02-06 18:48:52,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213660992] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:52,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:52,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:52,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936297317] [2025-02-06 18:48:52,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:52,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:52,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:52,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:52,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:52,097 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:52,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 357 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-06 18:48:52,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:52,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:52,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:52,673 INFO L124 PetriNetUnfolderBase]: 4136/8034 cut-off events. [2025-02-06 18:48:52,674 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2025-02-06 18:48:52,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13718 conditions, 8034 events. 4136/8034 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66143 event pairs, 2732 based on Foata normal form. 2/6398 useless extension candidates. Maximal degree in co-relation 13709. Up to 5507 conditions per place. [2025-02-06 18:48:52,707 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/138 dead transitions. [2025-02-06 18:48:52,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 138 transitions, 495 flow [2025-02-06 18:48:52,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2025-02-06 18:48:52,708 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2025-02-06 18:48:52,708 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 357 flow. Second operand 3 states and 286 transitions. [2025-02-06 18:48:52,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 138 transitions, 495 flow [2025-02-06 18:48:52,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 138 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:52,715 INFO L231 Difference]: Finished difference. Result has 127 places, 138 transitions, 346 flow [2025-02-06 18:48:52,715 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=127, PETRI_TRANSITIONS=138} [2025-02-06 18:48:52,716 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2025-02-06 18:48:52,716 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 138 transitions, 346 flow [2025-02-06 18:48:52,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-06 18:48:52,716 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:52,716 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:48:52,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 18:48:52,716 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:52,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:52,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1364521629, now seen corresponding path program 1 times [2025-02-06 18:48:52,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:52,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58878758] [2025-02-06 18:48:52,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:52,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:52,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:48:52,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:48:52,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:52,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:52,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:52,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:52,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58878758] [2025-02-06 18:48:52,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58878758] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:52,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:52,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:52,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413746808] [2025-02-06 18:48:52,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:52,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:52,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:52,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:52,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:52,769 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:52,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 138 transitions, 346 flow. Second operand has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-06 18:48:52,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:52,770 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:52,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:53,280 INFO L124 PetriNetUnfolderBase]: 4136/8032 cut-off events. [2025-02-06 18:48:53,281 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-02-06 18:48:53,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13709 conditions, 8032 events. 4136/8032 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66095 event pairs, 2732 based on Foata normal form. 1/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5505 conditions per place. [2025-02-06 18:48:53,312 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2025-02-06 18:48:53,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 136 transitions, 480 flow [2025-02-06 18:48:53,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:53,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2025-02-06 18:48:53,315 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2025-02-06 18:48:53,315 INFO L175 Difference]: Start difference. First operand has 127 places, 138 transitions, 346 flow. Second operand 3 states and 284 transitions. [2025-02-06 18:48:53,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 136 transitions, 480 flow [2025-02-06 18:48:53,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 136 transitions, 479 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:53,317 INFO L231 Difference]: Finished difference. Result has 126 places, 136 transitions, 343 flow [2025-02-06 18:48:53,317 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=343, PETRI_PLACES=126, PETRI_TRANSITIONS=136} [2025-02-06 18:48:53,318 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2025-02-06 18:48:53,318 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 136 transitions, 343 flow [2025-02-06 18:48:53,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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) [2025-02-06 18:48:53,319 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:53,319 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:53,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 18:48:53,319 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:53,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1340302992, now seen corresponding path program 1 times [2025-02-06 18:48:53,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:53,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282349444] [2025-02-06 18:48:53,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:53,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:53,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:48:53,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:48:53,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:53,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:53,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:53,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282349444] [2025-02-06 18:48:53,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282349444] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:53,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:53,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:53,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620523029] [2025-02-06 18:48:53,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:53,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:53,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:53,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:53,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:53,387 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:53,388 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 136 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-06 18:48:53,388 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:53,388 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:53,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:53,990 INFO L124 PetriNetUnfolderBase]: 4136/8030 cut-off events. [2025-02-06 18:48:53,991 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-02-06 18:48:54,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13710 conditions, 8030 events. 4136/8030 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66083 event pairs, 2732 based on Foata normal form. 2/6396 useless extension candidates. Maximal degree in co-relation 13699. Up to 5507 conditions per place. [2025-02-06 18:48:54,039 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 70 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2025-02-06 18:48:54,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 134 transitions, 481 flow [2025-02-06 18:48:54,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2025-02-06 18:48:54,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.680952380952381 [2025-02-06 18:48:54,042 INFO L175 Difference]: Start difference. First operand has 126 places, 136 transitions, 343 flow. Second operand 3 states and 286 transitions. [2025-02-06 18:48:54,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 134 transitions, 481 flow [2025-02-06 18:48:54,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 134 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:54,046 INFO L231 Difference]: Finished difference. Result has 125 places, 134 transitions, 340 flow [2025-02-06 18:48:54,046 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=340, PETRI_PLACES=125, PETRI_TRANSITIONS=134} [2025-02-06 18:48:54,049 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -5 predicate places. [2025-02-06 18:48:54,049 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 134 transitions, 340 flow [2025-02-06 18:48:54,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-06 18:48:54,050 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:54,050 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:54,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:48:54,050 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:54,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:54,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1340505976, now seen corresponding path program 1 times [2025-02-06 18:48:54,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:54,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279586598] [2025-02-06 18:48:54,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:54,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:54,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:48:54,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:48:54,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:54,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:54,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279586598] [2025-02-06 18:48:54,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279586598] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:48:54,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239352538] [2025-02-06 18:48:54,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:54,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:54,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:54,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:48:54,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 18:48:54,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 18:48:54,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 18:48:54,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:54,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:54,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:48:54,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:48:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:54,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:48:54,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239352538] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:54,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:48:54,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:48:54,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67628243] [2025-02-06 18:48:54,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:54,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:48:54,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:54,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:48:54,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:48:54,264 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:48:54,264 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 134 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-02-06 18:48:54,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:54,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:48:54,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:54,819 INFO L124 PetriNetUnfolderBase]: 4136/8027 cut-off events. [2025-02-06 18:48:54,820 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2025-02-06 18:48:54,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13706 conditions, 8027 events. 4136/8027 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66012 event pairs, 2732 based on Foata normal form. 3/6392 useless extension candidates. Maximal degree in co-relation 13694. Up to 5491 conditions per place. [2025-02-06 18:48:54,853 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 51 selfloop transitions, 21 changer transitions 0/131 dead transitions. [2025-02-06 18:48:54,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 472 flow [2025-02-06 18:48:54,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:48:54,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:48:54,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 507 transitions. [2025-02-06 18:48:54,855 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6035714285714285 [2025-02-06 18:48:54,856 INFO L175 Difference]: Start difference. First operand has 125 places, 134 transitions, 340 flow. Second operand 6 states and 507 transitions. [2025-02-06 18:48:54,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 472 flow [2025-02-06 18:48:54,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 131 transitions, 471 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:54,857 INFO L231 Difference]: Finished difference. Result has 126 places, 131 transitions, 369 flow [2025-02-06 18:48:54,858 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=327, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=369, PETRI_PLACES=126, PETRI_TRANSITIONS=131} [2025-02-06 18:48:54,858 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -4 predicate places. [2025-02-06 18:48:54,858 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 131 transitions, 369 flow [2025-02-06 18:48:54,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 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) [2025-02-06 18:48:54,858 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:54,858 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:54,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 18:48:55,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:55,066 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:55,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1400278975, now seen corresponding path program 1 times [2025-02-06 18:48:55,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:55,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230536443] [2025-02-06 18:48:55,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:55,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:55,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:48:55,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:48:55,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:55,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:55,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:55,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:55,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230536443] [2025-02-06 18:48:55,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230536443] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:55,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:55,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:48:55,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839728366] [2025-02-06 18:48:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:55,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:48:55,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:55,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:48:55,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:48:55,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:55,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 131 transitions, 369 flow. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-06 18:48:55,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:55,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:55,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:55,483 INFO L124 PetriNetUnfolderBase]: 4136/8025 cut-off events. [2025-02-06 18:48:55,483 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2025-02-06 18:48:55,495 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13722 conditions, 8025 events. 4136/8025 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 65997 event pairs, 2732 based on Foata normal form. 1/6391 useless extension candidates. Maximal degree in co-relation 13710. Up to 5505 conditions per place. [2025-02-06 18:48:55,557 INFO L140 encePairwiseOnDemand]: 137/140 looper letters, 68 selfloop transitions, 1 changer transitions 0/129 dead transitions. [2025-02-06 18:48:55,557 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 129 transitions, 503 flow [2025-02-06 18:48:55,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:48:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:48:55,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2025-02-06 18:48:55,559 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6761904761904762 [2025-02-06 18:48:55,559 INFO L175 Difference]: Start difference. First operand has 126 places, 131 transitions, 369 flow. Second operand 3 states and 284 transitions. [2025-02-06 18:48:55,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 129 transitions, 503 flow [2025-02-06 18:48:55,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 129 transitions, 458 flow, removed 6 selfloop flow, removed 4 redundant places. [2025-02-06 18:48:55,562 INFO L231 Difference]: Finished difference. Result has 122 places, 129 transitions, 322 flow [2025-02-06 18:48:55,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=122, PETRI_TRANSITIONS=129} [2025-02-06 18:48:55,565 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2025-02-06 18:48:55,565 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 129 transitions, 322 flow [2025-02-06 18:48:55,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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) [2025-02-06 18:48:55,565 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:55,565 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:48:55,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 18:48:55,565 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:55,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:55,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1393986501, now seen corresponding path program 1 times [2025-02-06 18:48:55,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:55,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653051877] [2025-02-06 18:48:55,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:55,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:55,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:48:55,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:48:55,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:55,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:55,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653051877] [2025-02-06 18:48:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653051877] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:48:55,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669004377] [2025-02-06 18:48:55,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:55,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:55,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:55,639 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:48:55,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 18:48:55,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:48:55,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:48:55,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:55,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:55,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:48:55,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:48:55,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:55,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:48:55,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:55,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669004377] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:48:55,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:48:55,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:48:55,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646521858] [2025-02-06 18:48:55,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:48:55,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:48:55,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:55,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:48:55,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:48:55,790 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:48:55,791 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 129 transitions, 322 flow. Second operand has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2025-02-06 18:48:55,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:55,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:48:55,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:56,348 INFO L124 PetriNetUnfolderBase]: 4145/8061 cut-off events. [2025-02-06 18:48:56,348 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2025-02-06 18:48:56,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13791 conditions, 8061 events. 4145/8061 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66194 event pairs, 2732 based on Foata normal form. 9/6426 useless extension candidates. Maximal degree in co-relation 13779. Up to 5512 conditions per place. [2025-02-06 18:48:56,383 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 60 selfloop transitions, 39 changer transitions 0/156 dead transitions. [2025-02-06 18:48:56,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 156 transitions, 637 flow [2025-02-06 18:48:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:48:56,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:48:56,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2025-02-06 18:48:56,390 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2025-02-06 18:48:56,390 INFO L175 Difference]: Start difference. First operand has 122 places, 129 transitions, 322 flow. Second operand 10 states and 828 transitions. [2025-02-06 18:48:56,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 156 transitions, 637 flow [2025-02-06 18:48:56,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 156 transitions, 636 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:56,393 INFO L231 Difference]: Finished difference. Result has 133 places, 156 transitions, 570 flow [2025-02-06 18:48:56,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=570, PETRI_PLACES=133, PETRI_TRANSITIONS=156} [2025-02-06 18:48:56,395 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-06 18:48:56,395 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 156 transitions, 570 flow [2025-02-06 18:48:56,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 73.16666666666667) internal successors, (878), 12 states have internal predecessors, (878), 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) [2025-02-06 18:48:56,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:56,396 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:56,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 18:48:56,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:56,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:56,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:56,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1679102714, now seen corresponding path program 1 times [2025-02-06 18:48:56,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353556248] [2025-02-06 18:48:56,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:56,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:56,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 18:48:56,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 18:48:56,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:56,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:56,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:48:56,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:56,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353556248] [2025-02-06 18:48:56,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353556248] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:56,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:56,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:48:56,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202928167] [2025-02-06 18:48:56,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:56,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:48:56,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:56,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:48:56,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:48:56,681 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:48:56,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 156 transitions, 570 flow. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2025-02-06 18:48:56,682 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:56,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:48:56,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:57,119 INFO L124 PetriNetUnfolderBase]: 4148/8073 cut-off events. [2025-02-06 18:48:57,119 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2025-02-06 18:48:57,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13884 conditions, 8073 events. 4148/8073 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66257 event pairs, 2732 based on Foata normal form. 3/6438 useless extension candidates. Maximal degree in co-relation 13869. Up to 5542 conditions per place. [2025-02-06 18:48:57,149 INFO L140 encePairwiseOnDemand]: 122/140 looper letters, 99 selfloop transitions, 12 changer transitions 0/165 dead transitions. [2025-02-06 18:48:57,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 810 flow [2025-02-06 18:48:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:48:57,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:48:57,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 369 transitions. [2025-02-06 18:48:57,152 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6589285714285714 [2025-02-06 18:48:57,152 INFO L175 Difference]: Start difference. First operand has 133 places, 156 transitions, 570 flow. Second operand 4 states and 369 transitions. [2025-02-06 18:48:57,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 810 flow [2025-02-06 18:48:57,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 165 transitions, 777 flow, removed 9 selfloop flow, removed 2 redundant places. [2025-02-06 18:48:57,155 INFO L231 Difference]: Finished difference. Result has 136 places, 165 transitions, 624 flow [2025-02-06 18:48:57,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=624, PETRI_PLACES=136, PETRI_TRANSITIONS=165} [2025-02-06 18:48:57,156 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 6 predicate places. [2025-02-06 18:48:57,156 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 165 transitions, 624 flow [2025-02-06 18:48:57,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 4 states have internal predecessors, (298), 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) [2025-02-06 18:48:57,156 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:57,157 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:57,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 18:48:57,157 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:57,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:57,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1336431265, now seen corresponding path program 1 times [2025-02-06 18:48:57,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:57,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722277136] [2025-02-06 18:48:57,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:57,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:57,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:48:57,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:48:57,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:57,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:57,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:48:57,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:57,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722277136] [2025-02-06 18:48:57,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722277136] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:57,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:57,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:48:57,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006228920] [2025-02-06 18:48:57,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:57,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:48:57,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:57,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:48:57,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:48:57,232 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:57,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 165 transitions, 624 flow. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2025-02-06 18:48:57,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:57,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:57,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:57,703 INFO L124 PetriNetUnfolderBase]: 4147/8072 cut-off events. [2025-02-06 18:48:57,703 INFO L125 PetriNetUnfolderBase]: For 143/143 co-relation queries the response was YES. [2025-02-06 18:48:57,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13899 conditions, 8072 events. 4147/8072 cut-off events. For 143/143 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66224 event pairs, 2732 based on Foata normal form. 1/6441 useless extension candidates. Maximal degree in co-relation 13881. Up to 5538 conditions per place. [2025-02-06 18:48:57,730 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 101 selfloop transitions, 3 changer transitions 0/164 dead transitions. [2025-02-06 18:48:57,731 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 164 transitions, 828 flow [2025-02-06 18:48:57,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:48:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:48:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:48:57,732 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:48:57,732 INFO L175 Difference]: Start difference. First operand has 136 places, 165 transitions, 624 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:48:57,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 164 transitions, 828 flow [2025-02-06 18:48:57,736 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 164 transitions, 819 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:48:57,737 INFO L231 Difference]: Finished difference. Result has 138 places, 164 transitions, 617 flow [2025-02-06 18:48:57,738 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=611, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=617, PETRI_PLACES=138, PETRI_TRANSITIONS=164} [2025-02-06 18:48:57,738 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 8 predicate places. [2025-02-06 18:48:57,738 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 164 transitions, 617 flow [2025-02-06 18:48:57,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2025-02-06 18:48:57,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:57,739 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1] [2025-02-06 18:48:57,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 18:48:57,739 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:57,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:57,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1102149261, now seen corresponding path program 2 times [2025-02-06 18:48:57,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:57,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733949373] [2025-02-06 18:48:57,740 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:48:57,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:57,749 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-06 18:48:57,752 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-06 18:48:57,753 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:48:57,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:57,792 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:48:57,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733949373] [2025-02-06 18:48:57,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733949373] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:48:57,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370089327] [2025-02-06 18:48:57,792 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:48:57,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:57,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:57,796 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:48:57,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 18:48:57,852 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 18 statements into 2 equivalence classes. [2025-02-06 18:48:57,865 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 18 statements. [2025-02-06 18:48:57,865 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:48:57,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:57,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:48:57,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:48:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:48:57,888 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:48:57,915 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-02-06 18:48:57,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370089327] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:48:57,915 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:48:57,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 4 [2025-02-06 18:48:57,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415493790] [2025-02-06 18:48:57,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:48:57,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:48:57,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:57,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:48:57,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:48:57,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2025-02-06 18:48:57,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 164 transitions, 617 flow. Second operand has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:48:57,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:57,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2025-02-06 18:48:57,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:58,404 INFO L124 PetriNetUnfolderBase]: 4147/8069 cut-off events. [2025-02-06 18:48:58,404 INFO L125 PetriNetUnfolderBase]: For 153/153 co-relation queries the response was YES. [2025-02-06 18:48:58,420 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13881 conditions, 8069 events. 4147/8069 cut-off events. For 153/153 co-relation queries the response was YES. Maximal size of possible extension queue 544. Compared 66145 event pairs, 2732 based on Foata normal form. 3/6440 useless extension candidates. Maximal degree in co-relation 13862. Up to 5507 conditions per place. [2025-02-06 18:48:58,442 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 56 selfloop transitions, 48 changer transitions 0/161 dead transitions. [2025-02-06 18:48:58,442 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 161 transitions, 795 flow [2025-02-06 18:48:58,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:48:58,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:48:58,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2025-02-06 18:48:58,444 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2025-02-06 18:48:58,444 INFO L175 Difference]: Start difference. First operand has 138 places, 164 transitions, 617 flow. Second operand 5 states and 403 transitions. [2025-02-06 18:48:58,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 161 transitions, 795 flow [2025-02-06 18:48:58,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 161 transitions, 761 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-02-06 18:48:58,447 INFO L231 Difference]: Finished difference. Result has 133 places, 161 transitions, 649 flow [2025-02-06 18:48:58,447 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=649, PETRI_PLACES=133, PETRI_TRANSITIONS=161} [2025-02-06 18:48:58,447 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-06 18:48:58,447 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 161 transitions, 649 flow [2025-02-06 18:48:58,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.6) internal successors, (348), 5 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:48:58,448 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:58,448 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:58,454 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 18:48:58,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:58,652 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:58,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:58,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2062744359, now seen corresponding path program 1 times [2025-02-06 18:48:58,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:58,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792067530] [2025-02-06 18:48:58,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:58,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:58,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 18:48:58,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 18:48:58,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:58,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:58,734 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:48:58,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:58,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792067530] [2025-02-06 18:48:58,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792067530] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:58,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:58,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:48:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638224562] [2025-02-06 18:48:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:58,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:48:58,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:58,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:48:58,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:48:58,743 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:58,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 161 transitions, 649 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2025-02-06 18:48:58,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:58,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:58,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:48:59,342 INFO L124 PetriNetUnfolderBase]: 4146/8068 cut-off events. [2025-02-06 18:48:59,342 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2025-02-06 18:48:59,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13904 conditions, 8068 events. 4146/8068 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66190 event pairs, 2732 based on Foata normal form. 0/6426 useless extension candidates. Maximal degree in co-relation 13889. Up to 5537 conditions per place. [2025-02-06 18:48:59,378 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 100 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2025-02-06 18:48:59,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 160 transitions, 849 flow [2025-02-06 18:48:59,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:48:59,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:48:59,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:48:59,380 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:48:59,380 INFO L175 Difference]: Start difference. First operand has 133 places, 161 transitions, 649 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:48:59,380 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 160 transitions, 849 flow [2025-02-06 18:48:59,381 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 160 transitions, 755 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:48:59,382 INFO L231 Difference]: Finished difference. Result has 132 places, 160 transitions, 555 flow [2025-02-06 18:48:59,383 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=555, PETRI_PLACES=132, PETRI_TRANSITIONS=160} [2025-02-06 18:48:59,383 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 2 predicate places. [2025-02-06 18:48:59,383 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 160 transitions, 555 flow [2025-02-06 18:48:59,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2025-02-06 18:48:59,383 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:48:59,384 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:48:59,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 18:48:59,384 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:48:59,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:48:59,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1586243387, now seen corresponding path program 1 times [2025-02-06 18:48:59,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:48:59,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334413648] [2025-02-06 18:48:59,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:48:59,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:48:59,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 18:48:59,401 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 18:48:59,401 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:48:59,401 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:48:59,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:59,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334413648] [2025-02-06 18:48:59,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334413648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:59,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:59,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:48:59,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575483455] [2025-02-06 18:48:59,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:59,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:48:59,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:59,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:48:59,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:48:59,517 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:48:59,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 160 transitions, 555 flow. Second operand has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2025-02-06 18:48:59,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:59,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:48:59,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:00,153 INFO L124 PetriNetUnfolderBase]: 4145/8067 cut-off events. [2025-02-06 18:49:00,153 INFO L125 PetriNetUnfolderBase]: For 116/116 co-relation queries the response was YES. [2025-02-06 18:49:00,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13857 conditions, 8067 events. 4145/8067 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 66136 event pairs, 2732 based on Foata normal form. 0/6426 useless extension candidates. Maximal degree in co-relation 13842. Up to 5536 conditions per place. [2025-02-06 18:49:00,187 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 99 selfloop transitions, 3 changer transitions 0/159 dead transitions. [2025-02-06 18:49:00,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 159 transitions, 755 flow [2025-02-06 18:49:00,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:00,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:49:00,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:49:00,189 INFO L175 Difference]: Start difference. First operand has 132 places, 160 transitions, 555 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:49:00,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 159 transitions, 755 flow [2025-02-06 18:49:00,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 159 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:00,191 INFO L231 Difference]: Finished difference. Result has 133 places, 159 transitions, 553 flow [2025-02-06 18:49:00,191 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=553, PETRI_PLACES=133, PETRI_TRANSITIONS=159} [2025-02-06 18:49:00,192 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 3 predicate places. [2025-02-06 18:49:00,192 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 159 transitions, 553 flow [2025-02-06 18:49:00,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 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) [2025-02-06 18:49:00,192 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:00,192 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:00,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 18:49:00,192 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:00,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:00,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1630588568, now seen corresponding path program 1 times [2025-02-06 18:49:00,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:00,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482491846] [2025-02-06 18:49:00,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:00,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:00,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:49:00,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:49:00,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:00,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:00,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:49:00,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482491846] [2025-02-06 18:49:00,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482491846] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:00,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378990463] [2025-02-06 18:49:00,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:00,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:00,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:00,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:00,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 18:49:00,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 18:49:00,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 18:49:00,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:00,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:00,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-02-06 18:49:00,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:49:00,468 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:49:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378990463] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:00,590 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2025-02-06 18:49:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720791207] [2025-02-06 18:49:00,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:00,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:49:00,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:00,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:49:00,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:49:00,857 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 140 [2025-02-06 18:49:00,859 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 159 transitions, 553 flow. Second operand has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2025-02-06 18:49:00,859 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:00,859 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 140 [2025-02-06 18:49:00,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:02,104 INFO L124 PetriNetUnfolderBase]: 8284/16102 cut-off events. [2025-02-06 18:49:02,104 INFO L125 PetriNetUnfolderBase]: For 219/219 co-relation queries the response was YES. [2025-02-06 18:49:02,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27624 conditions, 16102 events. 8284/16102 cut-off events. For 219/219 co-relation queries the response was YES. Maximal size of possible extension queue 1008. Compared 146499 event pairs, 5464 based on Foata normal form. 5/12948 useless extension candidates. Maximal degree in co-relation 27609. Up to 5508 conditions per place. [2025-02-06 18:49:02,179 INFO L140 encePairwiseOnDemand]: 117/140 looper letters, 120 selfloop transitions, 71 changer transitions 0/242 dead transitions. [2025-02-06 18:49:02,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 242 transitions, 1257 flow [2025-02-06 18:49:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 18:49:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2025-02-06 18:49:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1263 transitions. [2025-02-06 18:49:02,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5011904761904762 [2025-02-06 18:49:02,182 INFO L175 Difference]: Start difference. First operand has 133 places, 159 transitions, 553 flow. Second operand 18 states and 1263 transitions. [2025-02-06 18:49:02,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 242 transitions, 1257 flow [2025-02-06 18:49:02,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 242 transitions, 1251 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:02,185 INFO L231 Difference]: Finished difference. Result has 147 places, 195 transitions, 980 flow [2025-02-06 18:49:02,185 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=980, PETRI_PLACES=147, PETRI_TRANSITIONS=195} [2025-02-06 18:49:02,186 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 17 predicate places. [2025-02-06 18:49:02,186 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 195 transitions, 980 flow [2025-02-06 18:49:02,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 64.26315789473684) internal successors, (1221), 19 states have internal predecessors, (1221), 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) [2025-02-06 18:49:02,186 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:02,187 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:02,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 18:49:02,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-06 18:49:02,387 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:02,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:02,388 INFO L85 PathProgramCache]: Analyzing trace with hash 597579185, now seen corresponding path program 1 times [2025-02-06 18:49:02,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:02,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542303534] [2025-02-06 18:49:02,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:02,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:49:02,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:49:02,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:02,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:02,479 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:49:02,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:02,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542303534] [2025-02-06 18:49:02,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542303534] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:02,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200168932] [2025-02-06 18:49:02,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:02,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:02,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:02,481 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:02,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 18:49:02,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 18:49:02,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 18:49:02,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:02,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:02,564 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:49:02,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:49:02,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:49:02,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200168932] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:02,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:02,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-02-06 18:49:02,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158525695] [2025-02-06 18:49:02,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:02,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 18:49:02,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:02,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 18:49:02,611 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-02-06 18:49:02,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:49:02,646 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 195 transitions, 980 flow. Second operand has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2025-02-06 18:49:02,646 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:02,646 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:49:02,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:03,578 INFO L124 PetriNetUnfolderBase]: 8299/16162 cut-off events. [2025-02-06 18:49:03,579 INFO L125 PetriNetUnfolderBase]: For 461/461 co-relation queries the response was YES. [2025-02-06 18:49:03,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27938 conditions, 16162 events. 8299/16162 cut-off events. For 461/461 co-relation queries the response was YES. Maximal size of possible extension queue 1012. Compared 147460 event pairs, 5464 based on Foata normal form. 15/12917 useless extension candidates. Maximal degree in co-relation 27923. Up to 11066 conditions per place. [2025-02-06 18:49:03,650 INFO L140 encePairwiseOnDemand]: 125/140 looper letters, 119 selfloop transitions, 70 changer transitions 0/240 dead transitions. [2025-02-06 18:49:03,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 240 transitions, 1637 flow [2025-02-06 18:49:03,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 18:49:03,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 18:49:03,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 828 transitions. [2025-02-06 18:49:03,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5914285714285714 [2025-02-06 18:49:03,652 INFO L175 Difference]: Start difference. First operand has 147 places, 195 transitions, 980 flow. Second operand 10 states and 828 transitions. [2025-02-06 18:49:03,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 240 transitions, 1637 flow [2025-02-06 18:49:03,654 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 240 transitions, 1505 flow, removed 41 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:03,656 INFO L231 Difference]: Finished difference. Result has 155 places, 240 transitions, 1345 flow [2025-02-06 18:49:03,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1345, PETRI_PLACES=155, PETRI_TRANSITIONS=240} [2025-02-06 18:49:03,657 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 25 predicate places. [2025-02-06 18:49:03,657 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 240 transitions, 1345 flow [2025-02-06 18:49:03,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 74.16666666666667) internal successors, (890), 12 states have internal predecessors, (890), 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) [2025-02-06 18:49:03,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:03,657 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:03,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 18:49:03,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 18:49:03,858 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:03,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:03,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2069066906, now seen corresponding path program 1 times [2025-02-06 18:49:03,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:03,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120611880] [2025-02-06 18:49:03,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:03,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:03,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 18:49:03,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 18:49:03,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:03,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:03,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:49:03,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:03,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120611880] [2025-02-06 18:49:03,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120611880] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:03,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:03,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:03,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429157131] [2025-02-06 18:49:03,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:03,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:03,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:03,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:03,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:03,958 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:49:03,958 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 240 transitions, 1345 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2025-02-06 18:49:03,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:03,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:49:03,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:05,481 INFO L124 PetriNetUnfolderBase]: 16161/28622 cut-off events. [2025-02-06 18:49:05,482 INFO L125 PetriNetUnfolderBase]: For 516/516 co-relation queries the response was YES. [2025-02-06 18:49:05,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51221 conditions, 28622 events. 16161/28622 cut-off events. For 516/516 co-relation queries the response was YES. Maximal size of possible extension queue 1709. Compared 259243 event pairs, 4946 based on Foata normal form. 728/24000 useless extension candidates. Maximal degree in co-relation 51203. Up to 10192 conditions per place. [2025-02-06 18:49:05,714 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 236 selfloop transitions, 5 changer transitions 0/289 dead transitions. [2025-02-06 18:49:05,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 289 transitions, 1931 flow [2025-02-06 18:49:05,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:05,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:05,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 406 transitions. [2025-02-06 18:49:05,716 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.725 [2025-02-06 18:49:05,716 INFO L175 Difference]: Start difference. First operand has 155 places, 240 transitions, 1345 flow. Second operand 4 states and 406 transitions. [2025-02-06 18:49:05,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 289 transitions, 1931 flow [2025-02-06 18:49:05,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 289 transitions, 1871 flow, removed 15 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:05,723 INFO L231 Difference]: Finished difference. Result has 158 places, 242 transitions, 1319 flow [2025-02-06 18:49:05,723 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1319, PETRI_PLACES=158, PETRI_TRANSITIONS=242} [2025-02-06 18:49:05,724 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 28 predicate places. [2025-02-06 18:49:05,724 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 242 transitions, 1319 flow [2025-02-06 18:49:05,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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) [2025-02-06 18:49:05,724 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:05,724 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:05,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 18:49:05,724 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:05,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:05,725 INFO L85 PathProgramCache]: Analyzing trace with hash 283436674, now seen corresponding path program 1 times [2025-02-06 18:49:05,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:05,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357817853] [2025-02-06 18:49:05,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:05,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:05,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-02-06 18:49:05,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-02-06 18:49:05,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:05,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-06 18:49:05,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:05,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357817853] [2025-02-06 18:49:05,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357817853] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:05,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:05,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:05,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719119936] [2025-02-06 18:49:05,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:05,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:05,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:05,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:05,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:05,848 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:49:05,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 242 transitions, 1319 flow. Second operand has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2025-02-06 18:49:05,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:05,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:49:05,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:06,979 INFO L124 PetriNetUnfolderBase]: 10387/20680 cut-off events. [2025-02-06 18:49:06,979 INFO L125 PetriNetUnfolderBase]: For 4063/4595 co-relation queries the response was YES. [2025-02-06 18:49:07,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38331 conditions, 20680 events. 10387/20680 cut-off events. For 4063/4595 co-relation queries the response was YES. Maximal size of possible extension queue 1263. Compared 199695 event pairs, 7008 based on Foata normal form. 272/17108 useless extension candidates. Maximal degree in co-relation 38310. Up to 13915 conditions per place. [2025-02-06 18:49:07,100 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 181 selfloop transitions, 5 changer transitions 0/240 dead transitions. [2025-02-06 18:49:07,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 240 transitions, 1680 flow [2025-02-06 18:49:07,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:49:07,101 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:49:07,102 INFO L175 Difference]: Start difference. First operand has 158 places, 242 transitions, 1319 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:49:07,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 240 transitions, 1680 flow [2025-02-06 18:49:07,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 240 transitions, 1680 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:49:07,111 INFO L231 Difference]: Finished difference. Result has 161 places, 240 transitions, 1318 flow [2025-02-06 18:49:07,111 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1318, PETRI_PLACES=161, PETRI_TRANSITIONS=240} [2025-02-06 18:49:07,112 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 31 predicate places. [2025-02-06 18:49:07,112 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 240 transitions, 1318 flow [2025-02-06 18:49:07,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.5) internal successors, (318), 4 states have internal predecessors, (318), 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) [2025-02-06 18:49:07,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:07,112 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:07,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 18:49:07,112 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:07,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:07,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1262756025, now seen corresponding path program 1 times [2025-02-06 18:49:07,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:07,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70137224] [2025-02-06 18:49:07,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:07,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:07,123 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 18:49:07,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 18:49:07,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:07,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:07,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:07,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70137224] [2025-02-06 18:49:07,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70137224] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:07,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:07,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:07,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045847873] [2025-02-06 18:49:07,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:07,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:07,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:07,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:07,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:07,223 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:49:07,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 240 transitions, 1318 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-06 18:49:07,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:07,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:49:07,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:08,570 INFO L124 PetriNetUnfolderBase]: 10385/20678 cut-off events. [2025-02-06 18:49:08,570 INFO L125 PetriNetUnfolderBase]: For 4073/4605 co-relation queries the response was YES. [2025-02-06 18:49:08,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38329 conditions, 20678 events. 10385/20678 cut-off events. For 4073/4605 co-relation queries the response was YES. Maximal size of possible extension queue 1263. Compared 199470 event pairs, 7008 based on Foata normal form. 272/17106 useless extension candidates. Maximal degree in co-relation 38306. Up to 13913 conditions per place. [2025-02-06 18:49:08,651 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 179 selfloop transitions, 5 changer transitions 0/238 dead transitions. [2025-02-06 18:49:08,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 238 transitions, 1675 flow [2025-02-06 18:49:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:08,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:49:08,652 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:49:08,652 INFO L175 Difference]: Start difference. First operand has 161 places, 240 transitions, 1318 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:49:08,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 238 transitions, 1675 flow [2025-02-06 18:49:08,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 238 transitions, 1669 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:08,661 INFO L231 Difference]: Finished difference. Result has 162 places, 238 transitions, 1311 flow [2025-02-06 18:49:08,661 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1301, PETRI_DIFFERENCE_MINUEND_PLACES=159, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1311, PETRI_PLACES=162, PETRI_TRANSITIONS=238} [2025-02-06 18:49:08,661 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 32 predicate places. [2025-02-06 18:49:08,662 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 238 transitions, 1311 flow [2025-02-06 18:49:08,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-06 18:49:08,662 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:08,662 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:08,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 18:49:08,662 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:08,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:08,662 INFO L85 PathProgramCache]: Analyzing trace with hash -851848566, now seen corresponding path program 2 times [2025-02-06 18:49:08,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:08,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875695158] [2025-02-06 18:49:08,662 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:49:08,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:08,671 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-06 18:49:08,676 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 39 statements. [2025-02-06 18:49:08,677 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:49:08,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:08,724 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-06 18:49:08,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:08,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875695158] [2025-02-06 18:49:08,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875695158] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:08,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452388047] [2025-02-06 18:49:08,724 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:49:08,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:08,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:08,726 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:08,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 18:49:08,789 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 39 statements into 2 equivalence classes. [2025-02-06 18:49:08,805 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 15 of 39 statements. [2025-02-06 18:49:08,805 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:49:08,805 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:08,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 18:49:08,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-06 18:49:08,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:08,880 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-02-06 18:49:08,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452388047] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:08,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:08,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 4 [2025-02-06 18:49:08,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771630400] [2025-02-06 18:49:08,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:08,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 18:49:08,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:08,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 18:49:08,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 18:49:08,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 140 [2025-02-06 18:49:08,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 238 transitions, 1311 flow. Second operand has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-02-06 18:49:08,897 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:08,897 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 140 [2025-02-06 18:49:08,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:10,197 INFO L124 PetriNetUnfolderBase]: 10385/20673 cut-off events. [2025-02-06 18:49:10,197 INFO L125 PetriNetUnfolderBase]: For 4097/4629 co-relation queries the response was YES. [2025-02-06 18:49:10,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38306 conditions, 20673 events. 10385/20673 cut-off events. For 4097/4629 co-relation queries the response was YES. Maximal size of possible extension queue 1264. Compared 199464 event pairs, 7008 based on Foata normal form. 275/17104 useless extension candidates. Maximal degree in co-relation 38283. Up to 13859 conditions per place. [2025-02-06 18:49:10,295 INFO L140 encePairwiseOnDemand]: 124/140 looper letters, 102 selfloop transitions, 82 changer transitions 0/235 dead transitions. [2025-02-06 18:49:10,296 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 235 transitions, 1649 flow [2025-02-06 18:49:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 18:49:10,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 18:49:10,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 403 transitions. [2025-02-06 18:49:10,297 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5757142857142857 [2025-02-06 18:49:10,297 INFO L175 Difference]: Start difference. First operand has 162 places, 238 transitions, 1311 flow. Second operand 5 states and 403 transitions. [2025-02-06 18:49:10,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 235 transitions, 1649 flow [2025-02-06 18:49:10,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 235 transitions, 1591 flow, removed 5 selfloop flow, removed 6 redundant places. [2025-02-06 18:49:10,307 INFO L231 Difference]: Finished difference. Result has 157 places, 235 transitions, 1387 flow [2025-02-06 18:49:10,307 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1223, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1387, PETRI_PLACES=157, PETRI_TRANSITIONS=235} [2025-02-06 18:49:10,307 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 27 predicate places. [2025-02-06 18:49:10,307 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 235 transitions, 1387 flow [2025-02-06 18:49:10,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.0) internal successors, (360), 5 states have internal predecessors, (360), 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) [2025-02-06 18:49:10,308 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:10,308 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:10,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 18:49:10,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:10,508 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:10,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1534183395, now seen corresponding path program 1 times [2025-02-06 18:49:10,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:10,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465396351] [2025-02-06 18:49:10,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:10,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 18:49:10,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 18:49:10,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:10,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:10,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465396351] [2025-02-06 18:49:10,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465396351] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:10,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194986749] [2025-02-06 18:49:10,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:10,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:10,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:10,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:10,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 18:49:10,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 18:49:10,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 18:49:10,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:10,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:10,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:49:10,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-06 18:49:10,833 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:49:10,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194986749] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:10,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:49:10,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-06 18:49:10,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268732475] [2025-02-06 18:49:10,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:10,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:10,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:10,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:10,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 18:49:10,843 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 140 [2025-02-06 18:49:10,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 235 transitions, 1387 flow. Second operand has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2025-02-06 18:49:10,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:10,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 140 [2025-02-06 18:49:10,844 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:12,291 INFO L124 PetriNetUnfolderBase]: 10383/20671 cut-off events. [2025-02-06 18:49:12,291 INFO L125 PetriNetUnfolderBase]: For 4120/4652 co-relation queries the response was YES. [2025-02-06 18:49:12,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38345 conditions, 20671 events. 10383/20671 cut-off events. For 4120/4652 co-relation queries the response was YES. Maximal size of possible extension queue 1264. Compared 199257 event pairs, 7008 based on Foata normal form. 271/17092 useless extension candidates. Maximal degree in co-relation 38326. Up to 13911 conditions per place. [2025-02-06 18:49:12,425 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 177 selfloop transitions, 5 changer transitions 0/233 dead transitions. [2025-02-06 18:49:12,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 233 transitions, 1736 flow [2025-02-06 18:49:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:12,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:12,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 359 transitions. [2025-02-06 18:49:12,426 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6410714285714286 [2025-02-06 18:49:12,427 INFO L175 Difference]: Start difference. First operand has 157 places, 235 transitions, 1387 flow. Second operand 4 states and 359 transitions. [2025-02-06 18:49:12,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 233 transitions, 1736 flow [2025-02-06 18:49:12,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 233 transitions, 1576 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 18:49:12,442 INFO L231 Difference]: Finished difference. Result has 156 places, 233 transitions, 1222 flow [2025-02-06 18:49:12,442 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1212, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1222, PETRI_PLACES=156, PETRI_TRANSITIONS=233} [2025-02-06 18:49:12,443 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 26 predicate places. [2025-02-06 18:49:12,443 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 233 transitions, 1222 flow [2025-02-06 18:49:12,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.5) internal successors, (322), 4 states have internal predecessors, (322), 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) [2025-02-06 18:49:12,443 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:12,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:12,449 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 18:49:12,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:12,645 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:12,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:12,646 INFO L85 PathProgramCache]: Analyzing trace with hash -276783272, now seen corresponding path program 1 times [2025-02-06 18:49:12,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:12,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214810063] [2025-02-06 18:49:12,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:12,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:12,662 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 18:49:12,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 18:49:12,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:12,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:13,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214810063] [2025-02-06 18:49:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214810063] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:13,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231945320] [2025-02-06 18:49:13,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:13,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:13,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:13,369 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:13,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 18:49:13,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-02-06 18:49:13,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-02-06 18:49:13,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:13,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:13,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 18:49:13,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:13,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 18:49:13,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 1 [2025-02-06 18:49:13,779 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-06 18:49:13,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-06 18:49:13,822 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 15 [2025-02-06 18:49:14,122 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2025-02-06 18:49:14,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 10 [2025-02-06 18:49:14,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:14,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:14,198 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_395 (Array Int Int))) (< (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_395) c_~get_5~0.base) (+ (* c_~id_3~0 4) c_~get_5~0.offset)) 9223372039002259456)) is different from false [2025-02-06 18:49:14,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:49:14,336 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2025-02-06 18:49:14,344 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:49:14,344 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 33 [2025-02-06 18:49:14,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2025-02-06 18:49:14,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 1 not checked. [2025-02-06 18:49:14,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231945320] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:14,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:14,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2025-02-06 18:49:14,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644164727] [2025-02-06 18:49:14,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:14,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 18:49:14,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:14,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 18:49:14,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=382, Unknown=1, NotChecked=40, Total=506 [2025-02-06 18:49:14,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2025-02-06 18:49:14,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 233 transitions, 1222 flow. Second operand has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2025-02-06 18:49:14,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:14,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2025-02-06 18:49:14,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:19,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2025-02-06 18:49:29,309 INFO L124 PetriNetUnfolderBase]: 77793/118511 cut-off events. [2025-02-06 18:49:29,309 INFO L125 PetriNetUnfolderBase]: For 11864/12306 co-relation queries the response was YES. [2025-02-06 18:49:29,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241689 conditions, 118511 events. 77793/118511 cut-off events. For 11864/12306 co-relation queries the response was YES. Maximal size of possible extension queue 5116. Compared 1016009 event pairs, 17482 based on Foata normal form. 442/104225 useless extension candidates. Maximal degree in co-relation 241670. Up to 24786 conditions per place. [2025-02-06 18:49:30,142 INFO L140 encePairwiseOnDemand]: 123/140 looper letters, 521 selfloop transitions, 110 changer transitions 0/668 dead transitions. [2025-02-06 18:49:30,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 668 transitions, 4385 flow [2025-02-06 18:49:30,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 18:49:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2025-02-06 18:49:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1531 transitions. [2025-02-06 18:49:30,144 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49707792207792206 [2025-02-06 18:49:30,145 INFO L175 Difference]: Start difference. First operand has 156 places, 233 transitions, 1222 flow. Second operand 22 states and 1531 transitions. [2025-02-06 18:49:30,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 668 transitions, 4385 flow [2025-02-06 18:49:30,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 668 transitions, 4371 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:30,533 INFO L231 Difference]: Finished difference. Result has 180 places, 292 transitions, 1993 flow [2025-02-06 18:49:30,534 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1216, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1993, PETRI_PLACES=180, PETRI_TRANSITIONS=292} [2025-02-06 18:49:30,534 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 50 predicate places. [2025-02-06 18:49:30,534 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 292 transitions, 1993 flow [2025-02-06 18:49:30,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 57.869565217391305) internal successors, (1331), 23 states have internal predecessors, (1331), 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) [2025-02-06 18:49:30,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:30,535 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:30,541 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-06 18:49:30,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:30,738 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:30,738 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1015563304, now seen corresponding path program 1 times [2025-02-06 18:49:30,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:30,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565787308] [2025-02-06 18:49:30,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:30,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:49:30,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:49:30,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:30,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:30,814 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-06 18:49:30,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:30,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565787308] [2025-02-06 18:49:30,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565787308] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:49:30,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:49:30,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:49:30,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023933067] [2025-02-06 18:49:30,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:49:30,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:49:30,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:30,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:49:30,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:49:30,832 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 140 [2025-02-06 18:49:30,833 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 292 transitions, 1993 flow. Second operand has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-06 18:49:30,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:30,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 140 [2025-02-06 18:49:30,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:40,146 INFO L124 PetriNetUnfolderBase]: 65461/115971 cut-off events. [2025-02-06 18:49:40,146 INFO L125 PetriNetUnfolderBase]: For 57032/60388 co-relation queries the response was YES. [2025-02-06 18:49:40,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242470 conditions, 115971 events. 65461/115971 cut-off events. For 57032/60388 co-relation queries the response was YES. Maximal size of possible extension queue 5697. Compared 1228260 event pairs, 22082 based on Foata normal form. 4402/102177 useless extension candidates. Maximal degree in co-relation 242446. Up to 42378 conditions per place. [2025-02-06 18:49:40,966 INFO L140 encePairwiseOnDemand]: 132/140 looper letters, 313 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2025-02-06 18:49:40,966 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 365 transitions, 2959 flow [2025-02-06 18:49:40,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:49:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:49:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 404 transitions. [2025-02-06 18:49:40,967 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7214285714285714 [2025-02-06 18:49:40,967 INFO L175 Difference]: Start difference. First operand has 180 places, 292 transitions, 1993 flow. Second operand 4 states and 404 transitions. [2025-02-06 18:49:40,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 365 transitions, 2959 flow [2025-02-06 18:49:41,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 365 transitions, 2943 flow, removed 6 selfloop flow, removed 2 redundant places. [2025-02-06 18:49:41,187 INFO L231 Difference]: Finished difference. Result has 183 places, 294 transitions, 2019 flow [2025-02-06 18:49:41,187 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=1983, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=286, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=2019, PETRI_PLACES=183, PETRI_TRANSITIONS=294} [2025-02-06 18:49:41,187 INFO L279 CegarLoopForPetriNet]: 130 programPoint places, 53 predicate places. [2025-02-06 18:49:41,187 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 294 transitions, 2019 flow [2025-02-06 18:49:41,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.0) internal successors, (320), 4 states have internal predecessors, (320), 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) [2025-02-06 18:49:41,187 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:49:41,187 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:49:41,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-06 18:49:41,188 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2025-02-06 18:49:41,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:49:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash 9623732, now seen corresponding path program 1 times [2025-02-06 18:49:41,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:49:41,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997190846] [2025-02-06 18:49:41,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:41,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:49:41,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:49:41,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:49:41,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:41,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:41,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:49:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997190846] [2025-02-06 18:49:41,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997190846] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:49:41,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440447696] [2025-02-06 18:49:41,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:49:41,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:49:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:49:41,813 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 18:49:41,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 18:49:41,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 18:49:41,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 18:49:41,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:49:41,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:49:41,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-02-06 18:49:41,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:49:41,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2025-02-06 18:49:41,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-02-06 18:49:42,056 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2025-02-06 18:49:42,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2025-02-06 18:49:42,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2025-02-06 18:49:42,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2025-02-06 18:49:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:42,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:49:42,388 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:49:42,389 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 29 [2025-02-06 18:49:42,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 18:49:42,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 39 [2025-02-06 18:49:42,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2025-02-06 18:49:42,470 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-06 18:49:42,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440447696] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:49:42,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:49:42,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-02-06 18:49:42,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603386289] [2025-02-06 18:49:42,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:49:42,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:49:42,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:49:42,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:49:42,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=282, Unknown=1, NotChecked=0, Total=342 [2025-02-06 18:49:42,750 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 140 [2025-02-06 18:49:42,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 294 transitions, 2019 flow. Second operand has 19 states, 19 states have (on average 57.578947368421055) internal successors, (1094), 19 states have internal predecessors, (1094), 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) [2025-02-06 18:49:42,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:49:42,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 140 [2025-02-06 18:49:42,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:49:48,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1]