./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 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_93-evilcollapse_racefree.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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:48:07,983 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:48:08,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:48:08,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:48:08,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:48:08,037 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:48:08,037 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:48:08,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:48:08,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:48:08,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:48:08,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:48:08,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:48:08,038 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:48:08,039 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:48:08,040 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:08,040 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:08,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:08,041 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:48:08,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:48:08,041 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 -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2025-01-10 06:48:08,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:48:08,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:48:08,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:48:08,266 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:48:08,270 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:48:08,271 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-01-10 06:48:09,506 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/030328cbb/eb296ebb5dbd481a975de24615146560/FLAG56a157515 [2025-01-10 06:48:09,830 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:48:09,832 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2025-01-10 06:48:09,850 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/030328cbb/eb296ebb5dbd481a975de24615146560/FLAG56a157515 [2025-01-10 06:48:09,865 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/030328cbb/eb296ebb5dbd481a975de24615146560 [2025-01-10 06:48:09,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:48:09,868 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:48:09,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:09,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:48:09,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:48:09,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:09" (1/1) ... [2025-01-10 06:48:09,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6ac0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:09, skipping insertion in model container [2025-01-10 06:48:09,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:09" (1/1) ... [2025-01-10 06:48:09,910 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:48:10,276 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,277 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,277 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,277 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:10,338 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:48:10,390 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,391 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,391 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,391 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:10,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:10,452 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:48:10,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10 WrapperNode [2025-01-10 06:48:10,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:10,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:10,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:48:10,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:48:10,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,476 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,502 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 300 [2025-01-10 06:48:10,503 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:10,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:48:10,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:48:10,503 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:48:10,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,542 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 5, 89, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 70, 0]. The 12 writes are split as follows [0, 0, 11, 1]. [2025-01-10 06:48:10,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,555 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,561 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,565 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,570 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:48:10,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:48:10,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:48:10,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:48:10,584 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (1/1) ... [2025-01-10 06:48:10,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:10,629 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) [2025-01-10 06:48:10,635 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 [2025-01-10 06:48:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:48:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:48:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:48:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:48:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:48:10,659 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-10 06:48:10,787 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:48:10,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:48:11,273 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:48:11,273 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:48:11,802 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:48:11,803 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2025-01-10 06:48:11,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:11 BoogieIcfgContainer [2025-01-10 06:48:11,804 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:48:11,807 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:48:11,808 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:48:11,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:48:11,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:48:09" (1/3) ... [2025-01-10 06:48:11,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d18056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:11, skipping insertion in model container [2025-01-10 06:48:11,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:10" (2/3) ... [2025-01-10 06:48:11,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d18056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:11, skipping insertion in model container [2025-01-10 06:48:11,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:11" (3/3) ... [2025-01-10 06:48:11,817 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2025-01-10 06:48:11,834 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:48:11,836 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_93-evilcollapse_racefree.i that has 2 procedures, 71 locations, 1 initial locations, 11 loop locations, and 16 error locations. [2025-01-10 06:48:11,836 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:48:11,903 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:48:11,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2025-01-10 06:48:12,008 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2025-01-10 06:48:12,010 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:48:12,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 16/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 257 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2025-01-10 06:48:12,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2025-01-10 06:48:12,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2025-01-10 06:48:12,023 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:48:12,033 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;@6e5cc54c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:48:12,033 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-01-10 06:48:12,039 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:48:12,040 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-01-10 06:48:12,040 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:48:12,040 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:12,041 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:12,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:12,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:12,046 INFO L85 PathProgramCache]: Analyzing trace with hash 25451125, now seen corresponding path program 1 times [2025-01-10 06:48:12,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:12,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154241017] [2025-01-10 06:48:12,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:12,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:12,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:12,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:12,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:12,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 06:48:12,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [785347725] [2025-01-10 06:48:12,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:12,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:12,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:12,187 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) [2025-01-10 06:48:12,192 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 [2025-01-10 06:48:12,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:12,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:12,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:12,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:12,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 06:48:12,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:12,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:12,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154241017] [2025-01-10 06:48:12,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 06:48:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785347725] [2025-01-10 06:48:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785347725] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:12,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:12,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:48:12,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302040842] [2025-01-10 06:48:12,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:12,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:12,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:12,384 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:12,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:12,393 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 87 [2025-01-10 06:48:12,396 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2025-01-10 06:48:12,396 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:12,396 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 87 [2025-01-10 06:48:12,397 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:12,658 INFO L124 PetriNetUnfolderBase]: 121/408 cut-off events. [2025-01-10 06:48:12,658 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:48:12,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 408 events. 121/408 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1880 event pairs, 100 based on Foata normal form. 37/361 useless extension candidates. Maximal degree in co-relation 604. Up to 253 conditions per place. [2025-01-10 06:48:12,667 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 41 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2025-01-10 06:48:12,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 255 flow [2025-01-10 06:48:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:12,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2025-01-10 06:48:12,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6513409961685823 [2025-01-10 06:48:12,680 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 170 transitions. [2025-01-10 06:48:12,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 255 flow [2025-01-10 06:48:12,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 255 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:48:12,688 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2025-01-10 06:48:12,691 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2025-01-10 06:48:12,696 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2025-01-10 06:48:12,696 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2025-01-10 06:48:12,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2025-01-10 06:48:12,696 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:12,696 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:12,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 06:48:12,897 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 [2025-01-10 06:48:12,898 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:12,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash 25451128, now seen corresponding path program 1 times [2025-01-10 06:48:12,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:12,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391134454] [2025-01-10 06:48:12,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:12,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:12,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:12,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:12,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:13,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:13,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:13,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391134454] [2025-01-10 06:48:13,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391134454] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:13,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:13,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:13,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834286260] [2025-01-10 06:48:13,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:13,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:13,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:13,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:13,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:13,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 87 [2025-01-10 06:48:13,127 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2025-01-10 06:48:13,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:13,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 87 [2025-01-10 06:48:13,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:13,356 INFO L124 PetriNetUnfolderBase]: 121/422 cut-off events. [2025-01-10 06:48:13,356 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-10 06:48:13,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 422 events. 121/422 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1955 event pairs, 100 based on Foata normal form. 4/342 useless extension candidates. Maximal degree in co-relation 661. Up to 258 conditions per place. [2025-01-10 06:48:13,359 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 39 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2025-01-10 06:48:13,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 261 flow [2025-01-10 06:48:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:13,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2025-01-10 06:48:13,360 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6015325670498084 [2025-01-10 06:48:13,360 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 157 transitions. [2025-01-10 06:48:13,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 261 flow [2025-01-10 06:48:13,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 259 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:13,362 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2025-01-10 06:48:13,362 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2025-01-10 06:48:13,363 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2025-01-10 06:48:13,363 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2025-01-10 06:48:13,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2025-01-10 06:48:13,363 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:13,363 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:48:13,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:48:13,363 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:13,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:13,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1311246136, now seen corresponding path program 1 times [2025-01-10 06:48:13,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:13,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546799146] [2025-01-10 06:48:13,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:13,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:13,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:48:13,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:48:13,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:13,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:13,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:13,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546799146] [2025-01-10 06:48:13,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546799146] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:13,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:13,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:13,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596462408] [2025-01-10 06:48:13,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:13,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:13,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:13,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:13,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:13,552 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:13,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:13,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:13,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:13,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:13,786 INFO L124 PetriNetUnfolderBase]: 121/418 cut-off events. [2025-01-10 06:48:13,787 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-10 06:48:13,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 710 conditions, 418 events. 121/418 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1940 event pairs, 100 based on Foata normal form. 4/342 useless extension candidates. Maximal degree in co-relation 648. Up to 262 conditions per place. [2025-01-10 06:48:13,790 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2025-01-10 06:48:13,791 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 277 flow [2025-01-10 06:48:13,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2025-01-10 06:48:13,793 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2025-01-10 06:48:13,794 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 188 transitions. [2025-01-10 06:48:13,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 277 flow [2025-01-10 06:48:13,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:13,797 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2025-01-10 06:48:13,797 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2025-01-10 06:48:13,798 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2025-01-10 06:48:13,798 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2025-01-10 06:48:13,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:13,798 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:13,799 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:13,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:48:13,799 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:13,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:13,800 INFO L85 PathProgramCache]: Analyzing trace with hash -605251109, now seen corresponding path program 1 times [2025-01-10 06:48:13,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:13,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608179817] [2025-01-10 06:48:13,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:13,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:13,832 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:13,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:13,850 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:13,850 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:13,970 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:13,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608179817] [2025-01-10 06:48:13,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608179817] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:13,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265050752] [2025-01-10 06:48:13,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:13,974 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) [2025-01-10 06:48:13,981 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 [2025-01-10 06:48:14,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:14,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:14,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:14,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:14,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:48:14,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:14,152 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:14,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265050752] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:14,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:14,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-10 06:48:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144986207] [2025-01-10 06:48:14,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:14,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:48:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:14,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:48:14,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:48:14,216 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:14,217 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 36.5) internal successors, (365), 10 states have internal predecessors, (365), 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) [2025-01-10 06:48:14,217 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:14,217 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:14,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:14,943 INFO L124 PetriNetUnfolderBase]: 121/434 cut-off events. [2025-01-10 06:48:14,944 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2025-01-10 06:48:14,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 768 conditions, 434 events. 121/434 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2027 event pairs, 100 based on Foata normal form. 6/360 useless extension candidates. Maximal degree in co-relation 667. Up to 252 conditions per place. [2025-01-10 06:48:14,946 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 43 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2025-01-10 06:48:14,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 339 flow [2025-01-10 06:48:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:48:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:48:14,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 369 transitions. [2025-01-10 06:48:14,951 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2025-01-10 06:48:14,951 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 369 transitions. [2025-01-10 06:48:14,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 339 flow [2025-01-10 06:48:14,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:14,954 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2025-01-10 06:48:14,958 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=255, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2025-01-10 06:48:14,958 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2025-01-10 06:48:14,958 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2025-01-10 06:48:14,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.5) internal successors, (365), 10 states have internal predecessors, (365), 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) [2025-01-10 06:48:14,959 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:14,959 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:14,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 06:48:15,159 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 [2025-01-10 06:48:15,160 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:15,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:15,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1825707157, now seen corresponding path program 1 times [2025-01-10 06:48:15,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:15,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021785124] [2025-01-10 06:48:15,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:15,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:15,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:15,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:15,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:15,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:15,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:15,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021785124] [2025-01-10 06:48:15,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021785124] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:15,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866107278] [2025-01-10 06:48:15,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:15,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:15,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:15,389 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) [2025-01-10 06:48:15,392 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 [2025-01-10 06:48:15,475 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:15,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:15,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:15,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:15,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:48:15,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:15,547 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:15,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:15,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866107278] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:15,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:48:15,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:48:15,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125593962] [2025-01-10 06:48:15,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:15,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:15,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:15,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:15,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:48:15,571 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:15,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2025-01-10 06:48:15,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:15,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:15,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:15,839 INFO L124 PetriNetUnfolderBase]: 121/430 cut-off events. [2025-01-10 06:48:15,839 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2025-01-10 06:48:15,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 785 conditions, 430 events. 121/430 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1992 event pairs, 100 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 684. Up to 250 conditions per place. [2025-01-10 06:48:15,841 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2025-01-10 06:48:15,841 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 329 flow [2025-01-10 06:48:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:48:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:48:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2025-01-10 06:48:15,842 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4942528735632184 [2025-01-10 06:48:15,842 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 6 states and 258 transitions. [2025-01-10 06:48:15,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 329 flow [2025-01-10 06:48:15,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:15,844 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 249 flow [2025-01-10 06:48:15,844 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2025-01-10 06:48:15,845 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2025-01-10 06:48:15,845 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 249 flow [2025-01-10 06:48:15,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.0) internal successors, (222), 6 states have internal predecessors, (222), 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) [2025-01-10 06:48:15,845 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:15,845 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-01-10 06:48:15,854 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 06:48:16,046 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 [2025-01-10 06:48:16,046 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:16,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:16,047 INFO L85 PathProgramCache]: Analyzing trace with hash -222318182, now seen corresponding path program 1 times [2025-01-10 06:48:16,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:16,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290797317] [2025-01-10 06:48:16,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:16,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:16,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:48:16,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:48:16,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:16,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-10 06:48:16,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:16,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290797317] [2025-01-10 06:48:16,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290797317] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:16,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:16,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:16,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819045430] [2025-01-10 06:48:16,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:16,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:16,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:16,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:16,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:16,161 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2025-01-10 06:48:16,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2025-01-10 06:48:16,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:16,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2025-01-10 06:48:16,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:16,304 INFO L124 PetriNetUnfolderBase]: 121/428 cut-off events. [2025-01-10 06:48:16,304 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2025-01-10 06:48:16,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 428 events. 121/428 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1982 event pairs, 100 based on Foata normal form. 2/350 useless extension candidates. Maximal degree in co-relation 690. Up to 256 conditions per place. [2025-01-10 06:48:16,306 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 35 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2025-01-10 06:48:16,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 335 flow [2025-01-10 06:48:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:16,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:16,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-01-10 06:48:16,307 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373563218390804 [2025-01-10 06:48:16,307 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 249 flow. Second operand 4 states and 187 transitions. [2025-01-10 06:48:16,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 335 flow [2025-01-10 06:48:16,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 81 transitions, 319 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-01-10 06:48:16,309 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 257 flow [2025-01-10 06:48:16,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2025-01-10 06:48:16,310 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2025-01-10 06:48:16,310 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 257 flow [2025-01-10 06:48:16,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2025-01-10 06:48:16,310 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:16,310 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-01-10 06:48:16,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:48:16,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:16,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1100619771, now seen corresponding path program 2 times [2025-01-10 06:48:16,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097415431] [2025-01-10 06:48:16,311 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:16,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:16,366 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-01-10 06:48:16,370 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-01-10 06:48:16,370 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:16,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-10 06:48:16,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:16,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097415431] [2025-01-10 06:48:16,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097415431] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:16,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:16,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:16,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044642379] [2025-01-10 06:48:16,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:16,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:16,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:16,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:16,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:16,411 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:16,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2025-01-10 06:48:16,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:16,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:16,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:16,712 INFO L124 PetriNetUnfolderBase]: 121/426 cut-off events. [2025-01-10 06:48:16,713 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2025-01-10 06:48:16,713 INFO L83 FinitePrefix]: Finished finitePrefix Result has 797 conditions, 426 events. 121/426 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1980 event pairs, 100 based on Foata normal form. 2/350 useless extension candidates. Maximal degree in co-relation 672. Up to 261 conditions per place. [2025-01-10 06:48:16,714 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 50 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2025-01-10 06:48:16,714 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 435 flow [2025-01-10 06:48:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:16,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:16,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2025-01-10 06:48:16,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5488505747126436 [2025-01-10 06:48:16,715 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 257 flow. Second operand 4 states and 191 transitions. [2025-01-10 06:48:16,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 435 flow [2025-01-10 06:48:16,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 411 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:16,718 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2025-01-10 06:48:16,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2025-01-10 06:48:16,718 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2025-01-10 06:48:16,718 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2025-01-10 06:48:16,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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) [2025-01-10 06:48:16,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:16,719 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:16,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:48:16,719 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:16,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:16,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1936916327, now seen corresponding path program 1 times [2025-01-10 06:48:16,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:16,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256242942] [2025-01-10 06:48:16,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:16,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:16,752 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:48:16,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:48:16,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:16,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:16,856 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-10 06:48:16,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:16,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256242942] [2025-01-10 06:48:16,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256242942] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:16,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756415219] [2025-01-10 06:48:16,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:16,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:16,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:16,859 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) [2025-01-10 06:48:16,864 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 [2025-01-10 06:48:16,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:48:17,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:48:17,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:17,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:17,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:48:17,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:17,085 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:17,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:17,173 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:17,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756415219] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:17,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:17,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-01-10 06:48:17,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400733201] [2025-01-10 06:48:17,174 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:17,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 06:48:17,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:17,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 06:48:17,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-01-10 06:48:17,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 87 [2025-01-10 06:48:17,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 268 flow. Second operand has 19 states, 19 states have (on average 34.8421052631579) internal successors, (662), 19 states have internal predecessors, (662), 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) [2025-01-10 06:48:17,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:17,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 87 [2025-01-10 06:48:17,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:18,322 INFO L124 PetriNetUnfolderBase]: 126/528 cut-off events. [2025-01-10 06:48:18,322 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2025-01-10 06:48:18,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1156 conditions, 528 events. 126/528 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2139 event pairs, 100 based on Foata normal form. 13/463 useless extension candidates. Maximal degree in co-relation 1003. Up to 251 conditions per place. [2025-01-10 06:48:18,324 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 79 selfloop transitions, 55 changer transitions 0/167 dead transitions. [2025-01-10 06:48:18,324 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 167 transitions, 1139 flow [2025-01-10 06:48:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-10 06:48:18,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-01-10 06:48:18,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1599 transitions. [2025-01-10 06:48:18,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4177115987460815 [2025-01-10 06:48:18,330 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 44 states and 1599 transitions. [2025-01-10 06:48:18,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 167 transitions, 1139 flow [2025-01-10 06:48:18,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 167 transitions, 1135 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:18,334 INFO L231 Difference]: Finished difference. Result has 147 places, 130 transitions, 823 flow [2025-01-10 06:48:18,335 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=823, PETRI_PLACES=147, PETRI_TRANSITIONS=130} [2025-01-10 06:48:18,335 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 73 predicate places. [2025-01-10 06:48:18,335 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 823 flow [2025-01-10 06:48:18,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 34.8421052631579) internal successors, (662), 19 states have internal predecessors, (662), 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) [2025-01-10 06:48:18,336 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:18,336 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:18,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:48:18,536 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 [2025-01-10 06:48:18,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:18,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash -416424457, now seen corresponding path program 1 times [2025-01-10 06:48:18,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:18,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007476316] [2025-01-10 06:48:18,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:18,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:48:18,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:18,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:18,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:19,092 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:19,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:19,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007476316] [2025-01-10 06:48:19,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007476316] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:19,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487730744] [2025-01-10 06:48:19,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:19,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:19,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:19,094 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) [2025-01-10 06:48:19,096 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 [2025-01-10 06:48:19,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:48:19,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:19,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:19,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:19,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:48:19,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:19,463 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:19,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487730744] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:19,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:19,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-01-10 06:48:19,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309492076] [2025-01-10 06:48:19,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:19,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-10 06:48:19,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:19,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-10 06:48:19,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 06:48:19,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:19,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 130 transitions, 823 flow. Second operand has 34 states, 34 states have (on average 36.6764705882353) internal successors, (1247), 34 states have internal predecessors, (1247), 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) [2025-01-10 06:48:19,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:19,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:19,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:21,034 INFO L124 PetriNetUnfolderBase]: 122/680 cut-off events. [2025-01-10 06:48:21,035 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2025-01-10 06:48:21,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2047 conditions, 680 events. 122/680 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2219 event pairs, 100 based on Foata normal form. 24/626 useless extension candidates. Maximal degree in co-relation 1673. Up to 255 conditions per place. [2025-01-10 06:48:21,037 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 112 selfloop transitions, 93 changer transitions 0/240 dead transitions. [2025-01-10 06:48:21,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 240 transitions, 2465 flow [2025-01-10 06:48:21,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 06:48:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-01-10 06:48:21,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1201 transitions. [2025-01-10 06:48:21,041 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4453096032628847 [2025-01-10 06:48:21,041 INFO L175 Difference]: Start difference. First operand has 147 places, 130 transitions, 823 flow. Second operand 31 states and 1201 transitions. [2025-01-10 06:48:21,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 240 transitions, 2465 flow [2025-01-10 06:48:21,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 240 transitions, 2357 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-01-10 06:48:21,051 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 1560 flow [2025-01-10 06:48:21,051 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1560, PETRI_PLACES=181, PETRI_TRANSITIONS=181} [2025-01-10 06:48:21,052 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 107 predicate places. [2025-01-10 06:48:21,052 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 1560 flow [2025-01-10 06:48:21,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 36.6764705882353) internal successors, (1247), 34 states have internal predecessors, (1247), 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) [2025-01-10 06:48:21,053 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:21,053 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:21,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:21,253 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 [2025-01-10 06:48:21,253 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:21,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:21,254 INFO L85 PathProgramCache]: Analyzing trace with hash -184408713, now seen corresponding path program 2 times [2025-01-10 06:48:21,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:21,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655637832] [2025-01-10 06:48:21,254 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:21,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:21,491 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-01-10 06:48:21,563 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 06:48:21,563 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:21,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:22,822 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:22,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:22,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655637832] [2025-01-10 06:48:22,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655637832] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:22,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831596356] [2025-01-10 06:48:22,822 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:22,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:22,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:22,825 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) [2025-01-10 06:48:22,826 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 [2025-01-10 06:48:23,253 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-01-10 06:48:23,473 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 06:48:23,473 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:23,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:23,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-10 06:48:23,491 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:23,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:24,400 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831596356] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:24,401 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:24,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-01-10 06:48:24,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104657607] [2025-01-10 06:48:24,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:24,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-01-10 06:48:24,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:24,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-01-10 06:48:24,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-01-10 06:48:24,541 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:24,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 1560 flow. Second operand has 63 states, 63 states have (on average 36.61904761904762) internal successors, (2307), 63 states have internal predecessors, (2307), 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) [2025-01-10 06:48:24,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:24,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:24,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:28,335 INFO L124 PetriNetUnfolderBase]: 122/965 cut-off events. [2025-01-10 06:48:28,335 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2025-01-10 06:48:28,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3691 conditions, 965 events. 122/965 cut-off events. For 9666/9666 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2349 event pairs, 100 based on Foata normal form. 45/932 useless extension candidates. Maximal degree in co-relation 3042. Up to 255 conditions per place. [2025-01-10 06:48:28,341 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 202 selfloop transitions, 183 changer transitions 0/420 dead transitions. [2025-01-10 06:48:28,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 420 transitions, 5404 flow [2025-01-10 06:48:28,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-10 06:48:28,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-01-10 06:48:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2333 transitions. [2025-01-10 06:48:28,345 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.439608064820049 [2025-01-10 06:48:28,345 INFO L175 Difference]: Start difference. First operand has 181 places, 181 transitions, 1560 flow. Second operand 61 states and 2333 transitions. [2025-01-10 06:48:28,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 420 transitions, 5404 flow [2025-01-10 06:48:28,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 420 transitions, 5332 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-01-10 06:48:28,373 INFO L231 Difference]: Finished difference. Result has 245 places, 274 transitions, 3230 flow [2025-01-10 06:48:28,374 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3230, PETRI_PLACES=245, PETRI_TRANSITIONS=274} [2025-01-10 06:48:28,376 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2025-01-10 06:48:28,376 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 274 transitions, 3230 flow [2025-01-10 06:48:28,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 36.61904761904762) internal successors, (2307), 63 states have internal predecessors, (2307), 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) [2025-01-10 06:48:28,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:28,378 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:28,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 06:48:28,578 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 [2025-01-10 06:48:28,579 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:28,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:28,582 INFO L85 PathProgramCache]: Analyzing trace with hash -101027782, now seen corresponding path program 3 times [2025-01-10 06:48:28,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:28,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198326284] [2025-01-10 06:48:28,582 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:48:28,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:28,868 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes.