./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --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/goblint-regression/28-race_reach_90-arrayloop2_racing.i -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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 18:46:42,008 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 18:46:42,057 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 18:46:42,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 18:46:42,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 18:46:42,082 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 18:46:42,082 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 18:46:42,082 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 18:46:42,083 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 18:46:42,083 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 18:46:42,083 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 18:46:42,083 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 18:46:42,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 18:46:42,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 18:46:42,083 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 18:46:42,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 18:46:42,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 18:46:42,084 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 18:46:42,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 18:46:42,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 18:46:42,085 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:46:42,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 18:46:42,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 18:46:42,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 18:46:42,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 18:46:42,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 18:46:42,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 18:46:42,086 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-02-06 18:46:42,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 18:46:42,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 18:46:42,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 18:46:42,338 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 18:46:42,338 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 18:46:42,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-06 18:46:43,487 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31ae0984d/9407aefd923d43bf89df926921e2b817/FLAG41db146bf [2025-02-06 18:46:43,802 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 18:46:43,804 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-02-06 18:46:43,815 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31ae0984d/9407aefd923d43bf89df926921e2b817/FLAG41db146bf [2025-02-06 18:46:44,060 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/31ae0984d/9407aefd923d43bf89df926921e2b817 [2025-02-06 18:46:44,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 18:46:44,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 18:46:44,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 18:46:44,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 18:46:44,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 18:46:44,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae060ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44, skipping insertion in model container [2025-02-06 18:46:44,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 18:46:44,370 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,370 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,370 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,370 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:46:44,451 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 18:46:44,487 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,488 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,488 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,488 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-06 18:46:44,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 18:46:44,541 INFO L204 MainTranslator]: Completed translation [2025-02-06 18:46:44,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44 WrapperNode [2025-02-06 18:46:44,542 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 18:46:44,544 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 18:46:44,544 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 18:46:44,544 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 18:46:44,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,593 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 388 [2025-02-06 18:46:44,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 18:46:44,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 18:46:44,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 18:46:44,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 18:46:44,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,609 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,631 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 2, 94, 5, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 0, 70, 5, 0]. The 15 writes are split as follows [0, 1, 13, 0, 1]. [2025-02-06 18:46:44,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,641 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,642 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 18:46:44,656 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 18:46:44,656 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 18:46:44,656 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 18:46:44,657 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (1/1) ... [2025-02-06 18:46:44,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 18:46:44,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:44,684 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 18:46:44,686 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 18:46:44,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-02-06 18:46:44,703 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-06 18:46:44,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-02-06 18:46:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-02-06 18:46:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-02-06 18:46:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-02-06 18:46:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-06 18:46:44,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-02-06 18:46:44,706 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 18:46:44,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-02-06 18:46:44,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 18:46:44,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 18:46:44,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 18:46:44,710 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 18:46:44,849 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 18:46:44,850 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 18:46:45,315 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-02-06 18:46:45,316 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2025-02-06 18:46:45,316 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-2: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-02-06 18:46:45,316 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-3: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2025-02-06 18:46:45,317 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 18:46:45,317 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 18:46:45,728 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 18:46:45,730 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 18:46:45,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:46:45 BoogieIcfgContainer [2025-02-06 18:46:45,731 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 18:46:45,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 18:46:45,734 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 18:46:45,737 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 18:46:45,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 06:46:44" (1/3) ... [2025-02-06 18:46:45,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b3176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:46:45, skipping insertion in model container [2025-02-06 18:46:45,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 06:46:44" (2/3) ... [2025-02-06 18:46:45,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73b3176c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 06:46:45, skipping insertion in model container [2025-02-06 18:46:45,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 06:46:45" (3/3) ... [2025-02-06 18:46:45,740 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-02-06 18:46:45,754 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 18:46:45,756 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 140 locations, 1 initial locations, 20 loop locations, and 30 error locations. [2025-02-06 18:46:45,757 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 18:46:45,828 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-06 18:46:45,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 173 transitions, 366 flow [2025-02-06 18:46:45,932 INFO L124 PetriNetUnfolderBase]: 49/288 cut-off events. [2025-02-06 18:46:45,934 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-06 18:46:45,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 288 events. 49/288 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1464 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 162. Up to 8 conditions per place. [2025-02-06 18:46:45,939 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 173 transitions, 366 flow [2025-02-06 18:46:45,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 173 transitions, 366 flow [2025-02-06 18:46:45,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 18:46:45,962 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;@6959e997, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 18:46:45,962 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2025-02-06 18:46:45,971 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 18:46:45,971 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 18:46:45,971 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 18:46:45,971 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:45,972 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 18:46:45,972 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:45,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:45,976 INFO L85 PathProgramCache]: Analyzing trace with hash 30021977, now seen corresponding path program 1 times [2025-02-06 18:46:45,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:45,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318534341] [2025-02-06 18:46:45,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:45,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:46,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:46:46,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:46:46,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:46,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 18:46:46,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2014563271] [2025-02-06 18:46:46,112 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:46,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:46,115 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 18:46:46,117 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 18:46:46,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:46:46,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:46:46,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:46,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:46,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 18:46:46,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:46,257 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 18:46:46,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:46:46,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318534341] [2025-02-06 18:46:46,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 18:46:46,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014563271] [2025-02-06 18:46:46,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014563271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:46,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:46,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 18:46:46,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335608670] [2025-02-06 18:46:46,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:46,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:46:46,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:46,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:46:46,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:46:46,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 173 [2025-02-06 18:46:46,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 173 transitions, 366 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 18:46:46,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:46,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 173 [2025-02-06 18:46:46,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:48,013 INFO L124 PetriNetUnfolderBase]: 7865/18117 cut-off events. [2025-02-06 18:46:48,013 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2025-02-06 18:46:48,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29877 conditions, 18117 events. 7865/18117 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171406 event pairs, 6700 based on Foata normal form. 3199/18031 useless extension candidates. Maximal degree in co-relation 28487. Up to 11618 conditions per place. [2025-02-06 18:46:48,104 INFO L140 encePairwiseOnDemand]: 148/173 looper letters, 74 selfloop transitions, 2 changer transitions 0/158 dead transitions. [2025-02-06 18:46:48,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 158 transitions, 488 flow [2025-02-06 18:46:48,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:46:48,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:46:48,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2025-02-06 18:46:48,116 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6647398843930635 [2025-02-06 18:46:48,117 INFO L175 Difference]: Start difference. First operand has 146 places, 173 transitions, 366 flow. Second operand 3 states and 345 transitions. [2025-02-06 18:46:48,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 158 transitions, 488 flow [2025-02-06 18:46:48,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 158 transitions, 488 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 18:46:48,123 INFO L231 Difference]: Finished difference. Result has 149 places, 154 transitions, 342 flow [2025-02-06 18:46:48,125 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=342, PETRI_PLACES=149, PETRI_TRANSITIONS=154} [2025-02-06 18:46:48,127 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2025-02-06 18:46:48,127 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 154 transitions, 342 flow [2025-02-06 18:46:48,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 18:46:48,128 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:48,128 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-02-06 18:46:48,135 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 18:46:48,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 18:46:48,329 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:48,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash 30021929, now seen corresponding path program 1 times [2025-02-06 18:46:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:48,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158896813] [2025-02-06 18:46:48,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:48,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 18:46:48,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 18:46:48,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:48,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:48,487 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 18:46:48,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:48,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158896813] [2025-02-06 18:46:48,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158896813] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:48,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:48,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:46:48,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824365561] [2025-02-06 18:46:48,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:48,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 18:46:48,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:48,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 18:46:48,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 18:46:48,495 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 173 [2025-02-06 18:46:48,496 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 154 transitions, 342 flow. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 18:46:48,496 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:48,496 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 173 [2025-02-06 18:46:48,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:49,847 INFO L124 PetriNetUnfolderBase]: 7865/18131 cut-off events. [2025-02-06 18:46:49,849 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2025-02-06 18:46:49,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29904 conditions, 18131 events. 7865/18131 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171492 event pairs, 6700 based on Foata normal form. 4/14850 useless extension candidates. Maximal degree in co-relation 29866. Up to 11623 conditions per place. [2025-02-06 18:46:49,939 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 72 selfloop transitions, 2 changer transitions 0/156 dead transitions. [2025-02-06 18:46:49,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 494 flow [2025-02-06 18:46:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 18:46:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 18:46:49,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 322 transitions. [2025-02-06 18:46:49,943 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6204238921001927 [2025-02-06 18:46:49,943 INFO L175 Difference]: Start difference. First operand has 149 places, 154 transitions, 342 flow. Second operand 3 states and 322 transitions. [2025-02-06 18:46:49,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 494 flow [2025-02-06 18:46:49,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 492 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:46:49,948 INFO L231 Difference]: Finished difference. Result has 151 places, 155 transitions, 356 flow [2025-02-06 18:46:49,949 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=356, PETRI_PLACES=151, PETRI_TRANSITIONS=155} [2025-02-06 18:46:49,949 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 5 predicate places. [2025-02-06 18:46:49,949 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 155 transitions, 356 flow [2025-02-06 18:46:49,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 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 18:46:49,950 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:49,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 18:46:49,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 18:46:49,950 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:49,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:49,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1213623116, now seen corresponding path program 1 times [2025-02-06 18:46:49,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:49,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185245151] [2025-02-06 18:46:49,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:49,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:49,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 18:46:49,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 18:46:50,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:50,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:50,142 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 18:46:50,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:50,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185245151] [2025-02-06 18:46:50,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185245151] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:50,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:50,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:46:50,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866758779] [2025-02-06 18:46:50,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:50,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:50,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:50,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:50,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:50,155 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2025-02-06 18:46:50,155 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 155 transitions, 356 flow. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 18:46:50,155 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:50,155 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2025-02-06 18:46:50,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:51,339 INFO L124 PetriNetUnfolderBase]: 7865/18127 cut-off events. [2025-02-06 18:46:51,340 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES. [2025-02-06 18:46:51,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29916 conditions, 18127 events. 7865/18127 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171387 event pairs, 6700 based on Foata normal form. 4/14850 useless extension candidates. Maximal degree in co-relation 29853. Up to 11627 conditions per place. [2025-02-06 18:46:51,430 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 73 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2025-02-06 18:46:51,430 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 156 transitions, 510 flow [2025-02-06 18:46:51,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:51,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:51,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2025-02-06 18:46:51,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5736994219653179 [2025-02-06 18:46:51,432 INFO L175 Difference]: Start difference. First operand has 151 places, 155 transitions, 356 flow. Second operand 4 states and 397 transitions. [2025-02-06 18:46:51,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 156 transitions, 510 flow [2025-02-06 18:46:51,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 156 transitions, 508 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-06 18:46:51,435 INFO L231 Difference]: Finished difference. Result has 155 places, 156 transitions, 372 flow [2025-02-06 18:46:51,435 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=155, PETRI_TRANSITIONS=156} [2025-02-06 18:46:51,436 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 9 predicate places. [2025-02-06 18:46:51,436 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 156 transitions, 372 flow [2025-02-06 18:46:51,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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 18:46:51,436 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:51,437 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:51,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 18:46:51,437 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:51,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:51,437 INFO L85 PathProgramCache]: Analyzing trace with hash -10672385, now seen corresponding path program 1 times [2025-02-06 18:46:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:51,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543786031] [2025-02-06 18:46:51,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:51,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:51,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:46:51,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:46:51,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:51,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:51,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:51,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543786031] [2025-02-06 18:46:51,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543786031] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:51,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011513825] [2025-02-06 18:46:51,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:51,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:51,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:51,644 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 18:46:51,645 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 18:46:51,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-06 18:46:51,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-06 18:46:51,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:51,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:51,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-06 18:46:51,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:51,823 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:51,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:51,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011513825] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:51,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:51,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-02-06 18:46:51,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043429426] [2025-02-06 18:46:51,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:51,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 18:46:51,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:51,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 18:46:51,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 18:46:51,890 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 173 [2025-02-06 18:46:51,892 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 156 transitions, 372 flow. Second operand has 10 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:51,892 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:51,892 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 173 [2025-02-06 18:46:51,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:53,557 INFO L124 PetriNetUnfolderBase]: 7865/18143 cut-off events. [2025-02-06 18:46:53,557 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2025-02-06 18:46:53,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29974 conditions, 18143 events. 7865/18143 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171528 event pairs, 6700 based on Foata normal form. 6/14868 useless extension candidates. Maximal degree in co-relation 29872. Up to 11617 conditions per place. [2025-02-06 18:46:53,657 INFO L140 encePairwiseOnDemand]: 166/173 looper letters, 76 selfloop transitions, 9 changer transitions 0/164 dead transitions. [2025-02-06 18:46:53,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 164 transitions, 572 flow [2025-02-06 18:46:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 18:46:53,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-02-06 18:46:53,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 798 transitions. [2025-02-06 18:46:53,662 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.51252408477842 [2025-02-06 18:46:53,662 INFO L175 Difference]: Start difference. First operand has 155 places, 156 transitions, 372 flow. Second operand 9 states and 798 transitions. [2025-02-06 18:46:53,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 164 transitions, 572 flow [2025-02-06 18:46:53,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 164 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:53,668 INFO L231 Difference]: Finished difference. Result has 165 places, 160 transitions, 422 flow [2025-02-06 18:46:53,670 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=422, PETRI_PLACES=165, PETRI_TRANSITIONS=160} [2025-02-06 18:46:53,670 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2025-02-06 18:46:53,670 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 160 transitions, 422 flow [2025-02-06 18:46:53,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 80.5) internal successors, (805), 10 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:53,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:53,672 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-06 18:46:53,678 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 18:46:53,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:53,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:53,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:53,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1666153206, now seen corresponding path program 1 times [2025-02-06 18:46:53,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:53,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75648113] [2025-02-06 18:46:53,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:53,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:53,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:46:53,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:46:53,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:53,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:54,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:54,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75648113] [2025-02-06 18:46:54,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75648113] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:54,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348364873] [2025-02-06 18:46:54,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:54,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:54,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:54,077 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 18:46:54,079 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 18:46:54,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-06 18:46:54,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-06 18:46:54,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:54,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:54,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-06 18:46:54,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:54,249 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:54,250 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:46:54,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348364873] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:54,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 18:46:54,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-02-06 18:46:54,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556576205] [2025-02-06 18:46:54,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:54,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 18:46:54,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:54,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 18:46:54,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 18:46:54,271 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2025-02-06 18:46:54,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 160 transitions, 422 flow. Second operand has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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 18:46:54,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:54,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2025-02-06 18:46:54,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:55,479 INFO L124 PetriNetUnfolderBase]: 7865/18139 cut-off events. [2025-02-06 18:46:55,479 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2025-02-06 18:46:55,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29991 conditions, 18139 events. 7865/18139 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171532 event pairs, 6700 based on Foata normal form. 4/14862 useless extension candidates. Maximal degree in co-relation 29889. Up to 11615 conditions per place. [2025-02-06 18:46:55,545 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 69 selfloop transitions, 8 changer transitions 0/158 dead transitions. [2025-02-06 18:46:55,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 562 flow [2025-02-06 18:46:55,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 18:46:55,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 18:46:55,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 555 transitions. [2025-02-06 18:46:55,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5346820809248555 [2025-02-06 18:46:55,549 INFO L175 Difference]: Start difference. First operand has 165 places, 160 transitions, 422 flow. Second operand 6 states and 555 transitions. [2025-02-06 18:46:55,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 562 flow [2025-02-06 18:46:55,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 158 transitions, 554 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:55,554 INFO L231 Difference]: Finished difference. Result has 165 places, 158 transitions, 416 flow [2025-02-06 18:46:55,555 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=400, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=416, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2025-02-06 18:46:55,555 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2025-02-06 18:46:55,555 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 416 flow [2025-02-06 18:46:55,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.0) internal successors, (486), 6 states have internal predecessors, (486), 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 18:46:55,556 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:55,556 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-02-06 18:46:55,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 18:46:55,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:55,756 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:55,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash 516618110, now seen corresponding path program 1 times [2025-02-06 18:46:55,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:55,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141669520] [2025-02-06 18:46:55,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:55,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:55,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-06 18:46:55,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-06 18:46:55,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:55,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-02-06 18:46:55,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141669520] [2025-02-06 18:46:55,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141669520] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:55,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:55,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 18:46:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269529955] [2025-02-06 18:46:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:55,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:55,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:55,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:55,883 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 173 [2025-02-06 18:46:55,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 416 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:55,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:55,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 173 [2025-02-06 18:46:55,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:56,925 INFO L124 PetriNetUnfolderBase]: 7865/18137 cut-off events. [2025-02-06 18:46:56,925 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2025-02-06 18:46:56,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29996 conditions, 18137 events. 7865/18137 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171621 event pairs, 6700 based on Foata normal form. 2/14858 useless extension candidates. Maximal degree in co-relation 29895. Up to 11621 conditions per place. [2025-02-06 18:46:56,983 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 68 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2025-02-06 18:46:56,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 158 transitions, 568 flow [2025-02-06 18:46:56,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:56,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 396 transitions. [2025-02-06 18:46:56,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5722543352601156 [2025-02-06 18:46:56,985 INFO L175 Difference]: Start difference. First operand has 165 places, 158 transitions, 416 flow. Second operand 4 states and 396 transitions. [2025-02-06 18:46:56,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 158 transitions, 568 flow [2025-02-06 18:46:56,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 158 transitions, 552 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-02-06 18:46:56,988 INFO L231 Difference]: Finished difference. Result has 162 places, 158 transitions, 424 flow [2025-02-06 18:46:56,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=424, PETRI_PLACES=162, PETRI_TRANSITIONS=158} [2025-02-06 18:46:56,988 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 16 predicate places. [2025-02-06 18:46:56,989 INFO L471 AbstractCegarLoop]: Abstraction has has 162 places, 158 transitions, 424 flow [2025-02-06 18:46:56,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 18:46:56,989 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:56,989 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-02-06 18:46:56,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 18:46:56,989 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:56,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:56,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1746171585, now seen corresponding path program 2 times [2025-02-06 18:46:56,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:56,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368390076] [2025-02-06 18:46:56,990 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:46:56,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:57,018 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-02-06 18:46:57,021 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-02-06 18:46:57,021 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 18:46:57,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 18:46:57,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:57,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368390076] [2025-02-06 18:46:57,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368390076] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:46:57,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:46:57,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 18:46:57,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104728496] [2025-02-06 18:46:57,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:46:57,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 18:46:57,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:57,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 18:46:57,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 18:46:57,061 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 173 [2025-02-06 18:46:57,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 158 transitions, 424 flow. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 18:46:57,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:57,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 173 [2025-02-06 18:46:57,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:46:58,131 INFO L124 PetriNetUnfolderBase]: 7865/18135 cut-off events. [2025-02-06 18:46:58,131 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2025-02-06 18:46:58,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30003 conditions, 18135 events. 7865/18135 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 171552 event pairs, 6700 based on Foata normal form. 2/14858 useless extension candidates. Maximal degree in co-relation 29877. Up to 11626 conditions per place. [2025-02-06 18:46:58,189 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 83 selfloop transitions, 3 changer transitions 0/166 dead transitions. [2025-02-06 18:46:58,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 166 transitions, 668 flow [2025-02-06 18:46:58,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 18:46:58,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 18:46:58,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2025-02-06 18:46:58,191 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5780346820809249 [2025-02-06 18:46:58,191 INFO L175 Difference]: Start difference. First operand has 162 places, 158 transitions, 424 flow. Second operand 4 states and 400 transitions. [2025-02-06 18:46:58,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 166 transitions, 668 flow [2025-02-06 18:46:58,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 166 transitions, 644 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 18:46:58,193 INFO L231 Difference]: Finished difference. Result has 165 places, 159 transitions, 435 flow [2025-02-06 18:46:58,194 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=435, PETRI_PLACES=165, PETRI_TRANSITIONS=159} [2025-02-06 18:46:58,194 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 19 predicate places. [2025-02-06 18:46:58,194 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 159 transitions, 435 flow [2025-02-06 18:46:58,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 18:46:58,195 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:46:58,195 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 18:46:58,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 18:46:58,195 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:46:58,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:46:58,195 INFO L85 PathProgramCache]: Analyzing trace with hash 649009071, now seen corresponding path program 1 times [2025-02-06 18:46:58,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:46:58,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240558566] [2025-02-06 18:46:58,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:58,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:46:58,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:46:58,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:46:58,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:58,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-06 18:46:58,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:46:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240558566] [2025-02-06 18:46:58,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240558566] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:46:58,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799979237] [2025-02-06 18:46:58,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:46:58,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:46:58,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:46:58,322 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 18:46:58,323 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 18:46:58,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 18:46:58,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 18:46:58,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:46:58,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:46:58,506 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:46:58,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:46:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:58,560 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:46:58,638 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 18:46:58,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799979237] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:46:58,639 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:46:58,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-02-06 18:46:58,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379849627] [2025-02-06 18:46:58,639 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:46:58,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 18:46:58,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:46:58,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 18:46:58,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-02-06 18:46:58,714 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 173 [2025-02-06 18:46:58,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 159 transitions, 435 flow. Second operand has 19 states, 19 states have (on average 78.84210526315789) internal successors, (1498), 19 states have internal predecessors, (1498), 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 18:46:58,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:46:58,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 173 [2025-02-06 18:46:58,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:01,447 INFO L124 PetriNetUnfolderBase]: 7870/18237 cut-off events. [2025-02-06 18:47:01,448 INFO L125 PetriNetUnfolderBase]: For 631/631 co-relation queries the response was YES. [2025-02-06 18:47:01,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30362 conditions, 18237 events. 7870/18237 cut-off events. For 631/631 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 172059 event pairs, 6700 based on Foata normal form. 13/14971 useless extension candidates. Maximal degree in co-relation 30208. Up to 11616 conditions per place. [2025-02-06 18:47:01,547 INFO L140 encePairwiseOnDemand]: 164/173 looper letters, 112 selfloop transitions, 55 changer transitions 0/244 dead transitions. [2025-02-06 18:47:01,547 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 244 transitions, 1372 flow [2025-02-06 18:47:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-02-06 18:47:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-02-06 18:47:01,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3568 transitions. [2025-02-06 18:47:01,556 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4687335785601682 [2025-02-06 18:47:01,556 INFO L175 Difference]: Start difference. First operand has 165 places, 159 transitions, 435 flow. Second operand 44 states and 3568 transitions. [2025-02-06 18:47:01,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 244 transitions, 1372 flow [2025-02-06 18:47:01,559 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 244 transitions, 1368 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 18:47:01,562 INFO L231 Difference]: Finished difference. Result has 219 places, 207 transitions, 990 flow [2025-02-06 18:47:01,562 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=990, PETRI_PLACES=219, PETRI_TRANSITIONS=207} [2025-02-06 18:47:01,562 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 73 predicate places. [2025-02-06 18:47:01,563 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 207 transitions, 990 flow [2025-02-06 18:47:01,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 78.84210526315789) internal successors, (1498), 19 states have internal predecessors, (1498), 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 18:47:01,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:01,564 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:01,570 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 18:47:01,764 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,SelfDestructingSolverStorable7 [2025-02-06 18:47:01,764 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:47:01,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:01,765 INFO L85 PathProgramCache]: Analyzing trace with hash -694677759, now seen corresponding path program 1 times [2025-02-06 18:47:01,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:01,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451338090] [2025-02-06 18:47:01,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:01,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:01,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 18:47:01,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 18:47:01,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:01,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:02,405 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:02,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451338090] [2025-02-06 18:47:02,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451338090] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:02,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381635239] [2025-02-06 18:47:02,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 18:47:02,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:02,409 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 18:47:02,410 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 18:47:02,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 18:47:02,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 18:47:02,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 18:47:02,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:02,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 18:47:02,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:02,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:03,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381635239] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:03,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:03,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-02-06 18:47:03,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223165700] [2025-02-06 18:47:03,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:03,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-02-06 18:47:03,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:03,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-02-06 18:47:03,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 18:47:03,108 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 173 [2025-02-06 18:47:03,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 207 transitions, 990 flow. Second operand has 34 states, 34 states have (on average 80.67647058823529) internal successors, (2743), 34 states have internal predecessors, (2743), 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 18:47:03,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:03,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 173 [2025-02-06 18:47:03,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:06,796 INFO L124 PetriNetUnfolderBase]: 7866/18389 cut-off events. [2025-02-06 18:47:06,796 INFO L125 PetriNetUnfolderBase]: For 2934/2934 co-relation queries the response was YES. [2025-02-06 18:47:06,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31253 conditions, 18389 events. 7866/18389 cut-off events. For 2934/2934 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 172678 event pairs, 6700 based on Foata normal form. 24/15134 useless extension candidates. Maximal degree in co-relation 30878. Up to 11620 conditions per place. [2025-02-06 18:47:06,883 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 145 selfloop transitions, 93 changer transitions 0/317 dead transitions. [2025-02-06 18:47:06,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 317 transitions, 2698 flow [2025-02-06 18:47:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-02-06 18:47:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-02-06 18:47:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2598 transitions. [2025-02-06 18:47:06,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4844303561439493 [2025-02-06 18:47:06,888 INFO L175 Difference]: Start difference. First operand has 219 places, 207 transitions, 990 flow. Second operand 31 states and 2598 transitions. [2025-02-06 18:47:06,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 317 transitions, 2698 flow [2025-02-06 18:47:06,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 317 transitions, 2590 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-02-06 18:47:06,899 INFO L231 Difference]: Finished difference. Result has 253 places, 258 transitions, 1727 flow [2025-02-06 18:47:06,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=930, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1727, PETRI_PLACES=253, PETRI_TRANSITIONS=258} [2025-02-06 18:47:06,900 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 107 predicate places. [2025-02-06 18:47:06,900 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 258 transitions, 1727 flow [2025-02-06 18:47:06,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 80.67647058823529) internal successors, (2743), 34 states have internal predecessors, (2743), 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 18:47:06,901 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:06,901 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:06,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 18:47:07,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:07,102 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:47:07,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:07,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1240811009, now seen corresponding path program 2 times [2025-02-06 18:47:07,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:07,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913952391] [2025-02-06 18:47:07,102 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:07,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:07,231 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-02-06 18:47:07,286 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 18:47:07,287 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:07,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:08,458 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:08,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:47:08,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913952391] [2025-02-06 18:47:08,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913952391] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 18:47:08,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445191952] [2025-02-06 18:47:08,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 18:47:08,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:47:08,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:47:08,460 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 18:47:08,461 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 18:47:08,734 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-02-06 18:47:08,887 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-02-06 18:47:08,887 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-02-06 18:47:08,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:47:08,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-02-06 18:47:08,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:47:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:08,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 18:47:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-02-06 18:47:09,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445191952] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 18:47:09,574 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 18:47:09,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-02-06 18:47:09,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430055743] [2025-02-06 18:47:09,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 18:47:09,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-02-06 18:47:09,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:47:09,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-02-06 18:47:09,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-02-06 18:47:09,712 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 173 [2025-02-06 18:47:09,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 258 transitions, 1727 flow. Second operand has 63 states, 63 states have (on average 80.61904761904762) internal successors, (5079), 63 states have internal predecessors, (5079), 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 18:47:09,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:47:09,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 173 [2025-02-06 18:47:09,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 18:47:15,948 INFO L124 PetriNetUnfolderBase]: 7866/18674 cut-off events. [2025-02-06 18:47:15,948 INFO L125 PetriNetUnfolderBase]: For 9917/9917 co-relation queries the response was YES. [2025-02-06 18:47:16,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32897 conditions, 18674 events. 7866/18674 cut-off events. For 9917/9917 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 172806 event pairs, 6700 based on Foata normal form. 45/15440 useless extension candidates. Maximal degree in co-relation 32101. Up to 11620 conditions per place. [2025-02-06 18:47:16,075 INFO L140 encePairwiseOnDemand]: 168/173 looper letters, 235 selfloop transitions, 183 changer transitions 0/497 dead transitions. [2025-02-06 18:47:16,075 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 497 transitions, 5637 flow [2025-02-06 18:47:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-02-06 18:47:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-02-06 18:47:16,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 5050 transitions. [2025-02-06 18:47:16,083 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4785369089358476 [2025-02-06 18:47:16,083 INFO L175 Difference]: Start difference. First operand has 253 places, 258 transitions, 1727 flow. Second operand 61 states and 5050 transitions. [2025-02-06 18:47:16,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 497 transitions, 5637 flow [2025-02-06 18:47:16,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 497 transitions, 5565 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-02-06 18:47:16,108 INFO L231 Difference]: Finished difference. Result has 317 places, 351 transitions, 3397 flow [2025-02-06 18:47:16,109 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=173, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3397, PETRI_PLACES=317, PETRI_TRANSITIONS=351} [2025-02-06 18:47:16,110 INFO L279 CegarLoopForPetriNet]: 146 programPoint places, 171 predicate places. [2025-02-06 18:47:16,110 INFO L471 AbstractCegarLoop]: Abstraction has has 317 places, 351 transitions, 3397 flow [2025-02-06 18:47:16,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 80.61904761904762) internal successors, (5079), 63 states have internal predecessors, (5079), 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 18:47:16,112 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 18:47:16,112 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-02-06 18:47:16,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-06 18:47:16,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 18:47:16,313 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-02-06 18:47:16,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 18:47:16,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1646697623, now seen corresponding path program 3 times [2025-02-06 18:47:16,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 18:47:16,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988288079] [2025-02-06 18:47:16,315 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:47:16,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 18:47:16,531 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-02-06 18:48:12,524 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) and asserted 163 of 163 statements. [2025-02-06 18:48:12,524 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2025-02-06 18:48:12,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 18:48:12,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690491683] [2025-02-06 18:48:12,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 18:48:12,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 18:48:12,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 18:48:12,545 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 18:48:12,547 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 18:48:13,024 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-02-06 18:48:13,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 163 statements. [2025-02-06 18:48:13,063 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-02-06 18:48:13,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 18:48:13,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-06 18:48:13,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 18:48:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-02-06 18:48:13,221 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 18:48:13,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 18:48:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988288079] [2025-02-06 18:48:13,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 18:48:13,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690491683] [2025-02-06 18:48:13,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690491683] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 18:48:13,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 18:48:13,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 18:48:13,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524458103] [2025-02-06 18:48:13,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 18:48:13,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 18:48:13,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 18:48:13,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 18:48:13,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-02-06 18:48:13,253 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 173 [2025-02-06 18:48:13,254 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 351 transitions, 3397 flow. Second operand has 9 states, 9 states have (on average 78.44444444444444) internal successors, (706), 9 states have internal predecessors, (706), 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 18:48:13,254 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 18:48:13,254 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 173 [2025-02-06 18:48:13,254 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand