./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.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_92-evilcollapse_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:48:02,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:48:02,620 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:48:02,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:48:02,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:48:02,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:48:02,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:48:02,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:48:02,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:48:02,643 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:48:02,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:48:02,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:48:02,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:48:02,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:48:02,644 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:48:02,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:48:02,644 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:48:02,644 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:48:02,645 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:48:02,646 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:02,646 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:02,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:02,647 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:48:02,647 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:48:02,648 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:48:02,648 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 -> 6efa0097353392a416215c2535cfc6cdc34364d9b0eb2844e37da9edef467642 [2025-01-10 06:48:02,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:48:02,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:48:02,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:48:02,908 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:48:02,909 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:48:02,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2025-01-10 06:48:04,261 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe97a5ed5/e70f81610dda4083be3f38e7041b772e/FLAG89940214a [2025-01-10 06:48:04,527 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:48:04,528 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_92-evilcollapse_racing.i [2025-01-10 06:48:04,548 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe97a5ed5/e70f81610dda4083be3f38e7041b772e/FLAG89940214a [2025-01-10 06:48:04,566 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fe97a5ed5/e70f81610dda4083be3f38e7041b772e [2025-01-10 06:48:04,569 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:48:04,570 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:48:04,572 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:04,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:48:04,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:48:04,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:04" (1/1) ... [2025-01-10 06:48:04,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a92815f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:04, skipping insertion in model container [2025-01-10 06:48:04,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:48:04" (1/1) ... [2025-01-10 06:48:04,624 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:48:04,986 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:04,986 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:04,987 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:04,987 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:05,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:05,046 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:48:05,075 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:05,075 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:05,076 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:05,076 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:48:05,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:48:05,164 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:48:05,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05 WrapperNode [2025-01-10 06:48:05,164 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:48:05,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:05,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:48:05,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:48:05,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,231 INFO L138 Inliner]: procedures = 280, calls = 136, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 309 [2025-01-10 06:48:05,231 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:48:05,232 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:48:05,232 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:48:05,232 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:48:05,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,248 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,277 INFO L175 MemorySlicer]: Split 110 memory accesses to 4 slices as follows [2, 5, 2, 101]. 92 percent of accesses are in the largest equivalence class. The 87 initializations are split as follows [2, 5, 0, 80]. The 13 writes are split as follows [0, 0, 1, 12]. [2025-01-10 06:48:05,278 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,294 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,298 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,323 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:48:05,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:48:05,324 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:48:05,324 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:48:05,325 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (1/1) ... [2025-01-10 06:48:05,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:48:05,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:05,383 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 06:48:05,398 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 06:48:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:48:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 06:48:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 06:48:05,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 06:48:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 06:48:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:48:05,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-10 06:48:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-10 06:48:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-10 06:48:05,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-10 06:48:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:48:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:48:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:48:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:48:05,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:48:05,429 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:48:05,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:48:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:48:05,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:48:05,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:48:05,431 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 06:48:05,624 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:48:05,626 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:48:06,142 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:48:06,142 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:48:06,740 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:48:06,740 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2025-01-10 06:48:06,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:06 BoogieIcfgContainer [2025-01-10 06:48:06,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:48:06,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:48:06,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:48:06,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:48:06,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:48:04" (1/3) ... [2025-01-10 06:48:06,747 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207138e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:06, skipping insertion in model container [2025-01-10 06:48:06,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:48:05" (2/3) ... [2025-01-10 06:48:06,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207138e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:06, skipping insertion in model container [2025-01-10 06:48:06,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:06" (3/3) ... [2025-01-10 06:48:06,748 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_92-evilcollapse_racing.i [2025-01-10 06:48:06,758 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:48:06,761 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_92-evilcollapse_racing.i that has 2 procedures, 71 locations, 1 initial locations, 11 loop locations, and 16 error locations. [2025-01-10 06:48:06,762 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:48:06,810 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:48:06,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2025-01-10 06:48:06,869 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2025-01-10 06:48:06,871 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:48:06,874 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 267 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 06:48:06,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2025-01-10 06:48:06,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2025-01-10 06:48:06,889 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:48:06,899 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;@72f5140a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:48:06,900 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-01-10 06:48:06,906 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:48:06,907 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2025-01-10 06:48:06,907 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:48:06,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:06,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:06,908 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 06:48:06,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:06,912 INFO L85 PathProgramCache]: Analyzing trace with hash 25742102, now seen corresponding path program 1 times [2025-01-10 06:48:06,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:06,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231227150] [2025-01-10 06:48:06,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:06,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:06,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:07,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:07,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:07,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 06:48:07,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2128149700] [2025-01-10 06:48:07,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:07,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:07,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:07,058 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 06:48:07,060 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 06:48:07,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:07,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:07,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:07,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:07,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 06:48:07,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:07,205 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 06:48:07,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:07,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:07,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231227150] [2025-01-10 06:48:07,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 06:48:07,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128149700] [2025-01-10 06:48:07,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128149700] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:07,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:07,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:48:07,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149412765] [2025-01-10 06:48:07,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:07,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:07,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:07,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:07,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:07,245 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 87 [2025-01-10 06:48:07,248 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 06:48:07,248 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:07,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 87 [2025-01-10 06:48:07,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:07,530 INFO L124 PetriNetUnfolderBase]: 121/408 cut-off events. [2025-01-10 06:48:07,530 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:48:07,533 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 1877 event pairs, 100 based on Foata normal form. 37/362 useless extension candidates. Maximal degree in co-relation 604. Up to 253 conditions per place. [2025-01-10 06:48:07,536 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 41 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2025-01-10 06:48:07,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 255 flow [2025-01-10 06:48:07,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:07,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:07,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 170 transitions. [2025-01-10 06:48:07,547 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6513409961685823 [2025-01-10 06:48:07,548 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 170 transitions. [2025-01-10 06:48:07,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 255 flow [2025-01-10 06:48:07,553 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 06:48:07,557 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2025-01-10 06:48:07,559 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 06:48:07,561 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2025-01-10 06:48:07,562 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2025-01-10 06:48:07,562 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 06:48:07,563 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:07,563 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:07,570 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:07,767 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 06:48:07,768 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 06:48:07,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:07,769 INFO L85 PathProgramCache]: Analyzing trace with hash 25742118, now seen corresponding path program 1 times [2025-01-10 06:48:07,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:07,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328810878] [2025-01-10 06:48:07,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:07,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:07,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:07,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:07,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:07,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:07,925 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 06:48:07,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328810878] [2025-01-10 06:48:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328810878] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:07,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:07,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:07,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921908496] [2025-01-10 06:48:07,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:07,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:07,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:07,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:07,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:07,941 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 87 [2025-01-10 06:48:07,942 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 06:48:07,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:07,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 87 [2025-01-10 06:48:07,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:08,205 INFO L124 PetriNetUnfolderBase]: 121/422 cut-off events. [2025-01-10 06:48:08,206 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-01-10 06:48:08,209 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 1947 event pairs, 100 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 661. Up to 258 conditions per place. [2025-01-10 06:48:08,211 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 39 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2025-01-10 06:48:08,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 261 flow [2025-01-10 06:48:08,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:08,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 157 transitions. [2025-01-10 06:48:08,215 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6015325670498084 [2025-01-10 06:48:08,215 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 157 transitions. [2025-01-10 06:48:08,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 261 flow [2025-01-10 06:48:08,216 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 06:48:08,218 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2025-01-10 06:48:08,218 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 06:48:08,218 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2025-01-10 06:48:08,219 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2025-01-10 06:48:08,219 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 06:48:08,219 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:08,219 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:48:08,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:48:08,219 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 06:48:08,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1031615529, now seen corresponding path program 1 times [2025-01-10 06:48:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:08,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397714754] [2025-01-10 06:48:08,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:08,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:08,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:48:08,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:48:08,296 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:08,296 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:08,424 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 06:48:08,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:08,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397714754] [2025-01-10 06:48:08,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397714754] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:08,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:08,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:08,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136022056] [2025-01-10 06:48:08,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:08,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:08,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:08,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:08,435 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 06:48:08,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:08,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:08,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:08,817 INFO L124 PetriNetUnfolderBase]: 121/418 cut-off events. [2025-01-10 06:48:08,818 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-01-10 06:48:08,819 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 1932 event pairs, 100 based on Foata normal form. 4/343 useless extension candidates. Maximal degree in co-relation 648. Up to 262 conditions per place. [2025-01-10 06:48:08,821 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2025-01-10 06:48:08,821 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 277 flow [2025-01-10 06:48:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:08,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2025-01-10 06:48:08,823 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2025-01-10 06:48:08,823 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 188 transitions. [2025-01-10 06:48:08,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 277 flow [2025-01-10 06:48:08,824 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 06:48:08,827 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2025-01-10 06:48:08,827 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 06:48:08,828 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2025-01-10 06:48:08,828 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2025-01-10 06:48:08,828 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 06:48:08,828 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:08,829 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:08,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:48:08,829 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 06:48:08,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:08,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1928590267, now seen corresponding path program 1 times [2025-01-10 06:48:08,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:08,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422525346] [2025-01-10 06:48:08,830 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:08,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:08,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:08,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:08,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:08,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:08,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:08,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:09,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422525346] [2025-01-10 06:48:09,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422525346] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:09,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:09,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:09,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325215132] [2025-01-10 06:48:09,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:09,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:09,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:09,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:09,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:09,010 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:09,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 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 06:48:09,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:09,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:09,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:09,276 INFO L124 PetriNetUnfolderBase]: 121/416 cut-off events. [2025-01-10 06:48:09,276 INFO L125 PetriNetUnfolderBase]: For 31/31 co-relation queries the response was YES. [2025-01-10 06:48:09,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 722 conditions, 416 events. 121/416 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1923 event pairs, 100 based on Foata normal form. 2/341 useless extension candidates. Maximal degree in co-relation 649. Up to 257 conditions per place. [2025-01-10 06:48:09,278 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 46 selfloop transitions, 3 changer transitions 0/85 dead transitions. [2025-01-10 06:48:09,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 85 transitions, 335 flow [2025-01-10 06:48:09,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:09,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:09,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2025-01-10 06:48:09,280 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5488505747126436 [2025-01-10 06:48:09,280 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 4 states and 191 transitions. [2025-01-10 06:48:09,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 85 transitions, 335 flow [2025-01-10 06:48:09,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:09,283 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 221 flow [2025-01-10 06:48:09,283 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=221, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2025-01-10 06:48:09,283 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 12 predicate places. [2025-01-10 06:48:09,284 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 221 flow [2025-01-10 06:48:09,284 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 06:48:09,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:09,284 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:09,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-10 06:48:09,284 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 06:48:09,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:09,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2050612436, now seen corresponding path program 1 times [2025-01-10 06:48:09,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:09,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047684883] [2025-01-10 06:48:09,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:09,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:09,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:09,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:09,332 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:09,489 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 06:48:09,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047684883] [2025-01-10 06:48:09,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047684883] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:09,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269657166] [2025-01-10 06:48:09,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:09,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:09,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:09,492 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 06:48:09,493 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 06:48:09,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:09,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:09,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:09,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:09,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:48:09,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:09,721 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 06:48:09,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:09,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269657166] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:09,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:48:09,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:48:09,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37304466] [2025-01-10 06:48:09,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:09,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:09,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:09,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:09,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:48:09,744 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2025-01-10 06:48:09,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 221 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 06:48:09,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:09,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2025-01-10 06:48:09,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:10,055 INFO L124 PetriNetUnfolderBase]: 121/414 cut-off events. [2025-01-10 06:48:10,055 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2025-01-10 06:48:10,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 724 conditions, 414 events. 121/414 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1897 event pairs, 100 based on Foata normal form. 2/339 useless extension candidates. Maximal degree in co-relation 673. Up to 250 conditions per place. [2025-01-10 06:48:10,058 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 7 changer transitions 0/79 dead transitions. [2025-01-10 06:48:10,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 79 transitions, 303 flow [2025-01-10 06:48:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:48:10,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:48:10,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 258 transitions. [2025-01-10 06:48:10,061 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4942528735632184 [2025-01-10 06:48:10,061 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 221 flow. Second operand 6 states and 258 transitions. [2025-01-10 06:48:10,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 79 transitions, 303 flow [2025-01-10 06:48:10,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 79 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:10,064 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 227 flow [2025-01-10 06:48:10,065 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=227, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2025-01-10 06:48:10,066 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 14 predicate places. [2025-01-10 06:48:10,067 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 227 flow [2025-01-10 06:48:10,067 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 06:48:10,067 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:10,067 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2025-01-10 06:48:10,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:10,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:10,272 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 06:48:10,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash 855524775, now seen corresponding path program 1 times [2025-01-10 06:48:10,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:10,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222762127] [2025-01-10 06:48:10,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:10,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:10,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:48:10,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:48:10,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:10,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:48:10,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:10,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222762127] [2025-01-10 06:48:10,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222762127] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:10,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:10,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:10,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172372899] [2025-01-10 06:48:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:10,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:10,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:10,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:10,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:10,419 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2025-01-10 06:48:10,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 227 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 06:48:10,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:10,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2025-01-10 06:48:10,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:10,724 INFO L124 PetriNetUnfolderBase]: 121/412 cut-off events. [2025-01-10 06:48:10,724 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2025-01-10 06:48:10,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 412 events. 121/412 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1888 event pairs, 100 based on Foata normal form. 2/337 useless extension candidates. Maximal degree in co-relation 672. Up to 254 conditions per place. [2025-01-10 06:48:10,726 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 6 changer transitions 0/79 dead transitions. [2025-01-10 06:48:10,726 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 79 transitions, 309 flow [2025-01-10 06:48:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:10,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-01-10 06:48:10,727 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373563218390804 [2025-01-10 06:48:10,727 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 227 flow. Second operand 4 states and 187 transitions. [2025-01-10 06:48:10,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 79 transitions, 309 flow [2025-01-10 06:48:10,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 79 transitions, 294 flow, removed 2 selfloop flow, removed 5 redundant places. [2025-01-10 06:48:10,729 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 228 flow [2025-01-10 06:48:10,729 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2025-01-10 06:48:10,730 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 12 predicate places. [2025-01-10 06:48:10,730 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 228 flow [2025-01-10 06:48:10,730 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 06:48:10,730 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:10,730 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:10,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:48:10,730 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:48:10,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:10,731 INFO L85 PathProgramCache]: Analyzing trace with hash 822268913, now seen corresponding path program 1 times [2025-01-10 06:48:10,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:10,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236475353] [2025-01-10 06:48:10,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:10,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:10,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:48:10,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:48:10,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:10,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:10,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:10,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236475353] [2025-01-10 06:48:10,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236475353] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:10,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791433991] [2025-01-10 06:48:10,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:10,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:10,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:10,850 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 06:48:10,856 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 06:48:10,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-10 06:48:11,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-10 06:48:11,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:11,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:11,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:48:11,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:11,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:11,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791433991] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:11,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:11,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-10 06:48:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334395990] [2025-01-10 06:48:11,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:11,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:48:11,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:11,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:48:11,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:48:11,110 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:11,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 228 flow. Second operand has 10 states, 10 states have (on average 36.9) internal successors, (369), 10 states have internal predecessors, (369), 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 06:48:11,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:11,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:11,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:11,635 INFO L124 PetriNetUnfolderBase]: 121/426 cut-off events. [2025-01-10 06:48:11,635 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2025-01-10 06:48:11,636 INFO L83 FinitePrefix]: Finished finitePrefix Result has 778 conditions, 426 events. 121/426 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1975 event pairs, 100 based on Foata normal form. 4/353 useless extension candidates. Maximal degree in co-relation 702. Up to 252 conditions per place. [2025-01-10 06:48:11,638 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 43 selfloop transitions, 7 changer transitions 0/85 dead transitions. [2025-01-10 06:48:11,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 85 transitions, 363 flow [2025-01-10 06:48:11,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:48:11,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:48:11,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 295 transitions. [2025-01-10 06:48:11,640 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.48440065681444994 [2025-01-10 06:48:11,640 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 228 flow. Second operand 7 states and 295 transitions. [2025-01-10 06:48:11,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 85 transitions, 363 flow [2025-01-10 06:48:11,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 85 transitions, 350 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:11,643 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2025-01-10 06:48:11,643 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2025-01-10 06:48:11,644 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2025-01-10 06:48:11,644 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2025-01-10 06:48:11,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.9) internal successors, (369), 10 states have internal predecessors, (369), 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 06:48:11,645 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:11,645 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:11,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:11,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:11,846 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 06:48:11,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:11,847 INFO L85 PathProgramCache]: Analyzing trace with hash 871189201, now seen corresponding path program 2 times [2025-01-10 06:48:11,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680368248] [2025-01-10 06:48:11,847 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:11,889 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 25 statements into 2 equivalence classes. [2025-01-10 06:48:11,894 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 25 statements. [2025-01-10 06:48:11,895 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:11,895 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-10 06:48:11,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:11,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680368248] [2025-01-10 06:48:11,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680368248] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:11,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:11,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:11,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361066410] [2025-01-10 06:48:11,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:11,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:11,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:11,971 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:11,971 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:11,979 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2025-01-10 06:48:11,980 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 06:48:11,980 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:11,980 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2025-01-10 06:48:11,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:12,465 INFO L124 PetriNetUnfolderBase]: 139/400 cut-off events. [2025-01-10 06:48:12,465 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2025-01-10 06:48:12,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 400 events. 139/400 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1861 event pairs, 0 based on Foata normal form. 21/361 useless extension candidates. Maximal degree in co-relation 717. Up to 236 conditions per place. [2025-01-10 06:48:12,467 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 85 selfloop transitions, 3 changer transitions 0/125 dead transitions. [2025-01-10 06:48:12,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 125 transitions, 530 flow [2025-01-10 06:48:12,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:12,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 233 transitions. [2025-01-10 06:48:12,469 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2025-01-10 06:48:12,469 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 4 states and 233 transitions. [2025-01-10 06:48:12,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 125 transitions, 530 flow [2025-01-10 06:48:12,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 125 transitions, 526 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:12,472 INFO L231 Difference]: Finished difference. Result has 93 places, 80 transitions, 270 flow [2025-01-10 06:48:12,472 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=270, PETRI_PLACES=93, PETRI_TRANSITIONS=80} [2025-01-10 06:48:12,473 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2025-01-10 06:48:12,473 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 80 transitions, 270 flow [2025-01-10 06:48:12,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 06:48:12,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:12,473 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:12,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:48:12,474 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 06:48:12,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:12,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1387169401, now seen corresponding path program 1 times [2025-01-10 06:48:12,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:12,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445796469] [2025-01-10 06:48:12,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:12,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 06:48:12,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 06:48:12,534 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:12,534 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:12,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:12,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445796469] [2025-01-10 06:48:12,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445796469] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:12,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269743006] [2025-01-10 06:48:12,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:12,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:12,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:12,771 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 06:48:12,774 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 06:48:12,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 06:48:13,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 06:48:13,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:13,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:13,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:48:13,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:13,118 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:13,245 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:13,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269743006] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:13,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:13,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2025-01-10 06:48:13,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52545637] [2025-01-10 06:48:13,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:13,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:48:13,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:13,246 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:48:13,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:48:13,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:13,312 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 80 transitions, 270 flow. Second operand has 18 states, 18 states have (on average 36.833333333333336) internal successors, (663), 18 states have internal predecessors, (663), 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 06:48:13,312 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:13,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:13,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:14,495 INFO L124 PetriNetUnfolderBase]: 121/460 cut-off events. [2025-01-10 06:48:14,495 INFO L125 PetriNetUnfolderBase]: For 290/290 co-relation queries the response was YES. [2025-01-10 06:48:14,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 993 conditions, 460 events. 121/460 cut-off events. For 290/290 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2054 event pairs, 100 based on Foata normal form. 8/415 useless extension candidates. Maximal degree in co-relation 837. Up to 249 conditions per place. [2025-01-10 06:48:14,497 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 55 selfloop transitions, 15 changer transitions 0/103 dead transitions. [2025-01-10 06:48:14,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 572 flow [2025-01-10 06:48:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:48:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:48:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 597 transitions. [2025-01-10 06:48:14,499 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4574712643678161 [2025-01-10 06:48:14,499 INFO L175 Difference]: Start difference. First operand has 93 places, 80 transitions, 270 flow. Second operand 15 states and 597 transitions. [2025-01-10 06:48:14,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 572 flow [2025-01-10 06:48:14,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 566 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:48:14,502 INFO L231 Difference]: Finished difference. Result has 109 places, 89 transitions, 398 flow [2025-01-10 06:48:14,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=398, PETRI_PLACES=109, PETRI_TRANSITIONS=89} [2025-01-10 06:48:14,503 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 35 predicate places. [2025-01-10 06:48:14,503 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 89 transitions, 398 flow [2025-01-10 06:48:14,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 36.833333333333336) internal successors, (663), 18 states have internal predecessors, (663), 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 06:48:14,503 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:14,503 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:14,513 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 06:48:14,704 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,SelfDestructingSolverStorable8 [2025-01-10 06:48:14,704 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 06:48:14,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:14,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1209141433, now seen corresponding path program 2 times [2025-01-10 06:48:14,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:14,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096334560] [2025-01-10 06:48:14,705 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:14,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:14,773 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-01-10 06:48:14,806 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:14,806 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:14,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:15,400 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 06:48:15,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:15,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096334560] [2025-01-10 06:48:15,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096334560] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:15,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043040092] [2025-01-10 06:48:15,401 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:15,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:15,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:15,404 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 06:48:15,412 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 06:48:15,652 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 48 statements into 2 equivalence classes. [2025-01-10 06:48:15,802 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:15,802 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:15,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:15,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:48:15,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:15,880 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 06:48:15,880 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:16,116 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 06:48:16,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043040092] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:16,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:16,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-01-10 06:48:16,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952628767] [2025-01-10 06:48:16,117 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:16,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-10 06:48:16,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:16,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-10 06:48:16,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 06:48:16,210 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:48:16,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 89 transitions, 398 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 06:48:16,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:16,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:48:16,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:18,358 INFO L124 PetriNetUnfolderBase]: 121/558 cut-off events. [2025-01-10 06:48:18,358 INFO L125 PetriNetUnfolderBase]: For 1185/1185 co-relation queries the response was YES. [2025-01-10 06:48:18,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1452 conditions, 558 events. 121/558 cut-off events. For 1185/1185 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2084 event pairs, 100 based on Foata normal form. 16/519 useless extension candidates. Maximal degree in co-relation 1086. Up to 249 conditions per place. [2025-01-10 06:48:18,364 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 79 selfloop transitions, 31 changer transitions 0/143 dead transitions. [2025-01-10 06:48:18,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 143 transitions, 1082 flow [2025-01-10 06:48:18,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 06:48:18,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-01-10 06:48:18,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1201 transitions. [2025-01-10 06:48:18,370 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4453096032628847 [2025-01-10 06:48:18,370 INFO L175 Difference]: Start difference. First operand has 109 places, 89 transitions, 398 flow. Second operand 31 states and 1201 transitions. [2025-01-10 06:48:18,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 143 transitions, 1082 flow [2025-01-10 06:48:18,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 143 transitions, 1048 flow, removed 13 selfloop flow, removed 4 redundant places. [2025-01-10 06:48:18,378 INFO L231 Difference]: Finished difference. Result has 144 places, 106 transitions, 670 flow [2025-01-10 06:48:18,382 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=670, PETRI_PLACES=144, PETRI_TRANSITIONS=106} [2025-01-10 06:48:18,382 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 70 predicate places. [2025-01-10 06:48:18,383 INFO L471 AbstractCegarLoop]: Abstraction has has 144 places, 106 transitions, 670 flow [2025-01-10 06:48:18,384 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 06:48:18,384 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:18,385 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:18,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:48:18,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-10 06:48:18,586 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 06:48:18,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1792922311, now seen corresponding path program 3 times [2025-01-10 06:48:18,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:18,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138230840] [2025-01-10 06:48:18,589 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:48:18,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:18,800 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-01-10 06:48:27,944 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 06:48:27,944 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2025-01-10 06:48:27,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:29,596 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 06:48:29,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:29,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138230840] [2025-01-10 06:48:29,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138230840] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:29,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854039532] [2025-01-10 06:48:29,598 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:48:29,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:29,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:29,601 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 06:48:29,602 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 06:48:29,902 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 88 statements into 17 equivalence classes. [2025-01-10 06:48:29,955 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 88 statements. [2025-01-10 06:48:29,956 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 06:48:29,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:29,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-10 06:48:29,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 2 proven. 108 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-01-10 06:48:30,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:38,823 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2025-01-10 06:48:38,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854039532] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:38,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:38,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 5, 5] total 44 [2025-01-10 06:48:38,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242919993] [2025-01-10 06:48:38,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:38,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2025-01-10 06:48:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:38,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2025-01-10 06:48:38,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=1745, Unknown=2, NotChecked=0, Total=1980 [2025-01-10 06:48:42,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-01-10 06:48:46,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-01-10 06:48:50,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-01-10 06:48:55,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2025-01-10 06:48:55,716 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 87 [2025-01-10 06:48:55,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 106 transitions, 670 flow. Second operand has 45 states, 45 states have (on average 30.733333333333334) internal successors, (1383), 45 states have internal predecessors, (1383), 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 06:48:55,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:55,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 87 [2025-01-10 06:48:55,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:05,415 INFO L124 PetriNetUnfolderBase]: 132/671 cut-off events. [2025-01-10 06:49:05,415 INFO L125 PetriNetUnfolderBase]: For 1885/1885 co-relation queries the response was YES. [2025-01-10 06:49:05,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2155 conditions, 671 events. 132/671 cut-off events. For 1885/1885 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2128 event pairs, 110 based on Foata normal form. 34/650 useless extension candidates. Maximal degree in co-relation 1672. Up to 270 conditions per place. [2025-01-10 06:49:05,420 INFO L140 encePairwiseOnDemand]: 76/87 looper letters, 202 selfloop transitions, 120 changer transitions 0/348 dead transitions. [2025-01-10 06:49:05,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 348 transitions, 3107 flow [2025-01-10 06:49:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2025-01-10 06:49:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2025-01-10 06:49:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 3604 transitions. [2025-01-10 06:49:05,443 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3571145461751883 [2025-01-10 06:49:05,443 INFO L175 Difference]: Start difference. First operand has 144 places, 106 transitions, 670 flow. Second operand 116 states and 3604 transitions. [2025-01-10 06:49:05,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 348 transitions, 3107 flow [2025-01-10 06:49:05,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 348 transitions, 3029 flow, removed 3 selfloop flow, removed 12 redundant places. [2025-01-10 06:49:05,467 INFO L231 Difference]: Finished difference. Result has 281 places, 194 transitions, 1973 flow [2025-01-10 06:49:05,468 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=116, PETRI_FLOW=1973, PETRI_PLACES=281, PETRI_TRANSITIONS=194} [2025-01-10 06:49:05,472 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 207 predicate places. [2025-01-10 06:49:05,472 INFO L471 AbstractCegarLoop]: Abstraction has has 281 places, 194 transitions, 1973 flow [2025-01-10 06:49:05,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 30.733333333333334) internal successors, (1383), 45 states have internal predecessors, (1383), 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 06:49:05,473 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:05,473 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1] [2025-01-10 06:49:05,490 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 06:49:05,673 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,SelfDestructingSolverStorable10 [2025-01-10 06:49:05,674 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:49:05,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1723286877, now seen corresponding path program 1 times [2025-01-10 06:49:05,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:05,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491942559] [2025-01-10 06:49:05,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:05,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:05,958 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-10 06:49:06,097 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-10 06:49:06,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:06,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:07,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 1314 proven. 616 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2025-01-10 06:49:07,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491942559] [2025-01-10 06:49:07,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491942559] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:49:07,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200448371] [2025-01-10 06:49:07,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:07,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:07,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:49:07,860 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:49:07,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:49:08,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-10 06:49:08,857 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-10 06:49:08,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:08,858 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:08,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 3286 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-10 06:49:08,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:49:09,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 1314 proven. 616 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2025-01-10 06:49:09,034 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:49:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 1314 proven. 616 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2025-01-10 06:49:09,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200448371] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:49:09,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:49:09,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 63 [2025-01-10 06:49:09,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430371806] [2025-01-10 06:49:09,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:49:09,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-01-10 06:49:09,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:09,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-01-10 06:49:09,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-01-10 06:49:10,132 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2025-01-10 06:49:10,135 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 194 transitions, 1973 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 06:49:10,135 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:10,135 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2025-01-10 06:49:10,135 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:15,621 INFO L124 PetriNetUnfolderBase]: 122/895 cut-off events. [2025-01-10 06:49:15,621 INFO L125 PetriNetUnfolderBase]: For 24455/24455 co-relation queries the response was YES. [2025-01-10 06:49:15,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5384 conditions, 895 events. 122/895 cut-off events. For 24455/24455 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2155 event pairs, 100 based on Foata normal form. 42/882 useless extension candidates. Maximal degree in co-relation 4694. Up to 252 conditions per place. [2025-01-10 06:49:15,631 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 156 selfloop transitions, 183 changer transitions 0/387 dead transitions. [2025-01-10 06:49:15,631 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 387 transitions, 6943 flow [2025-01-10 06:49:15,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-10 06:49:15,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-01-10 06:49:15,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2332 transitions. [2025-01-10 06:49:15,635 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.43941963444507254 [2025-01-10 06:49:15,635 INFO L175 Difference]: Start difference. First operand has 281 places, 194 transitions, 1973 flow. Second operand 61 states and 2332 transitions. [2025-01-10 06:49:15,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 387 transitions, 6943 flow [2025-01-10 06:49:15,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 387 transitions, 6624 flow, removed 73 selfloop flow, removed 31 redundant places. [2025-01-10 06:49:15,740 INFO L231 Difference]: Finished difference. Result has 325 places, 281 transitions, 3587 flow [2025-01-10 06:49:15,740 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=1710, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3587, PETRI_PLACES=325, PETRI_TRANSITIONS=281} [2025-01-10 06:49:15,741 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 251 predicate places. [2025-01-10 06:49:15,741 INFO L471 AbstractCegarLoop]: Abstraction has has 325 places, 281 transitions, 3587 flow [2025-01-10 06:49:15,743 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 06:49:15,743 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:15,743 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 2, 2, 1, 1, 1, 1] [2025-01-10 06:49:15,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-10 06:49:15,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:15,944 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:49:15,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash 284770467, now seen corresponding path program 2 times [2025-01-10 06:49:15,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:15,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185201127] [2025-01-10 06:49:15,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:49:15,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:16,411 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 308 statements into 2 equivalence classes. [2025-01-10 06:49:16,496 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 308 of 308 statements. [2025-01-10 06:49:16,496 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:49:16,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 8973 backedges. 0 proven. 4563 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2025-01-10 06:49:17,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185201127] [2025-01-10 06:49:17,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185201127] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:49:17,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226512271] [2025-01-10 06:49:17,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:49:17,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:17,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:49:17,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:49:17,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-10 06:49:18,769 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 308 statements into 2 equivalence classes. [2025-01-10 06:49:19,708 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 308 of 308 statements. [2025-01-10 06:49:19,708 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:49:19,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:19,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 5890 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:49:19,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:49:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 8973 backedges. 4563 proven. 0 refuted. 0 times theorem prover too weak. 4410 trivial. 0 not checked. [2025-01-10 06:49:19,921 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:49:19,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226512271] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:19,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:49:19,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 8 [2025-01-10 06:49:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556269761] [2025-01-10 06:49:19,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:19,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:49:19,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:19,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:49:19,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:49:19,934 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2025-01-10 06:49:19,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 281 transitions, 3587 flow. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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 06:49:19,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:19,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2025-01-10 06:49:19,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:20,420 INFO L124 PetriNetUnfolderBase]: 122/893 cut-off events. [2025-01-10 06:49:20,421 INFO L125 PetriNetUnfolderBase]: For 21200/21200 co-relation queries the response was YES. [2025-01-10 06:49:20,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 893 events. 122/893 cut-off events. For 21200/21200 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2090 event pairs, 100 based on Foata normal form. 2/840 useless extension candidates. Maximal degree in co-relation 4703. Up to 242 conditions per place. [2025-01-10 06:49:20,427 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 214 selfloop transitions, 8 changer transitions 0/280 dead transitions. [2025-01-10 06:49:20,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 280 transitions, 4027 flow [2025-01-10 06:49:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:20,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2025-01-10 06:49:20,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373563218390804 [2025-01-10 06:49:20,430 INFO L175 Difference]: Start difference. First operand has 325 places, 281 transitions, 3587 flow. Second operand 4 states and 187 transitions. [2025-01-10 06:49:20,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 280 transitions, 4027 flow [2025-01-10 06:49:20,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 280 transitions, 3847 flow, removed 0 selfloop flow, removed 30 redundant places. [2025-01-10 06:49:20,506 INFO L231 Difference]: Finished difference. Result has 297 places, 280 transitions, 3419 flow [2025-01-10 06:49:20,506 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=3403, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3419, PETRI_PLACES=297, PETRI_TRANSITIONS=280} [2025-01-10 06:49:20,507 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 223 predicate places. [2025-01-10 06:49:20,507 INFO L471 AbstractCegarLoop]: Abstraction has has 297 places, 280 transitions, 3419 flow [2025-01-10 06:49:20,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 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 06:49:20,507 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:20,507 INFO L206 CegarLoopForPetriNet]: trace histogram [60, 60, 60, 60, 60, 2, 2, 2, 1, 1, 1] [2025-01-10 06:49:20,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-10 06:49:20,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:20,708 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:49:20,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:20,710 INFO L85 PathProgramCache]: Analyzing trace with hash 237950729, now seen corresponding path program 1 times [2025-01-10 06:49:20,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:20,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110602892] [2025-01-10 06:49:20,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:20,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:21,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 309 statements into 1 equivalence classes. [2025-01-10 06:49:21,300 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 309 of 309 statements. [2025-01-10 06:49:21,300 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:49:21,301 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:21,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8974 backedges. 4563 proven. 0 refuted. 0 times theorem prover too weak. 4411 trivial. 0 not checked. [2025-01-10 06:49:21,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:21,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110602892] [2025-01-10 06:49:21,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110602892] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:21,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:22,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:49:22,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278446099] [2025-01-10 06:49:22,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:22,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:49:22,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:22,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:49:22,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:49:22,008 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 87 [2025-01-10 06:49:22,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 280 transitions, 3419 flow. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 06:49:22,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:22,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 87 [2025-01-10 06:49:22,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:22,516 INFO L124 PetriNetUnfolderBase]: 122/891 cut-off events. [2025-01-10 06:49:22,516 INFO L125 PetriNetUnfolderBase]: For 20753/20753 co-relation queries the response was YES. [2025-01-10 06:49:22,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5317 conditions, 891 events. 122/891 cut-off events. For 20753/20753 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2087 event pairs, 100 based on Foata normal form. 2/838 useless extension candidates. Maximal degree in co-relation 4612. Up to 245 conditions per place. [2025-01-10 06:49:22,524 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 211 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2025-01-10 06:49:22,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 279 transitions, 3855 flow [2025-01-10 06:49:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:49:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:49:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 190 transitions. [2025-01-10 06:49:22,527 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2025-01-10 06:49:22,527 INFO L175 Difference]: Start difference. First operand has 297 places, 280 transitions, 3419 flow. Second operand 4 states and 190 transitions. [2025-01-10 06:49:22,527 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 279 transitions, 3855 flow [2025-01-10 06:49:22,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 279 transitions, 3837 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-01-10 06:49:22,619 INFO L231 Difference]: Finished difference. Result has 295 places, 279 transitions, 3415 flow [2025-01-10 06:49:22,619 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=3397, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=3415, PETRI_PLACES=295, PETRI_TRANSITIONS=279} [2025-01-10 06:49:22,621 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 221 predicate places. [2025-01-10 06:49:22,621 INFO L471 AbstractCegarLoop]: Abstraction has has 295 places, 279 transitions, 3415 flow [2025-01-10 06:49:22,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 4 states have internal predecessors, (163), 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 06:49:22,621 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:22,621 INFO L206 CegarLoopForPetriNet]: trace histogram [62, 61, 61, 61, 61, 3, 2, 2, 2, 1, 1] [2025-01-10 06:49:22,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 06:49:22,621 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:49:22,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:22,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2020761231, now seen corresponding path program 4 times [2025-01-10 06:49:22,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:22,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252282654] [2025-01-10 06:49:22,624 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-10 06:49:22,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:23,235 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 317 statements into 2 equivalence classes.