./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:47:11,496 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:47:11,548 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:47:11,552 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:47:11,552 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:47:11,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:47:11,568 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:47:11,568 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:47:11,569 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:47:11,569 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:47:11,569 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:47:11,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:47:11,569 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:47:11,569 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:47:11,569 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:47:11,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:47:11,570 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:11,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:11,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:11,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:47:11,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:47:11,571 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 -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2025-01-10 06:47:11,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:47:11,788 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:47:11,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:47:11,791 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:47:11,791 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:47:11,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2025-01-10 06:47:13,143 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/138c6e49f/ada331ab44df44f7b856268a0c591358/FLAG1252993bb [2025-01-10 06:47:13,551 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:47:13,552 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2025-01-10 06:47:13,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/138c6e49f/ada331ab44df44f7b856268a0c591358/FLAG1252993bb [2025-01-10 06:47:13,747 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/138c6e49f/ada331ab44df44f7b856268a0c591358 [2025-01-10 06:47:13,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:47:13,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:47:13,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:13,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:47:13,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:47:13,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:13" (1/1) ... [2025-01-10 06:47:13,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a2629a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:13, skipping insertion in model container [2025-01-10 06:47:13,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:13" (1/1) ... [2025-01-10 06:47:13,784 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:47:14,111 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:14,139 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:47:14,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:14,231 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:47:14,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14 WrapperNode [2025-01-10 06:47:14,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:14,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:14,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:47:14,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:47:14,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,274 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 271 [2025-01-10 06:47:14,274 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:14,275 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:47:14,275 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:47:14,275 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:47:14,285 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,289 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,302 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 70, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2025-01-10 06:47:14,303 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,310 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,311 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:47:14,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:47:14,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:47:14,319 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:47:14,320 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (1/1) ... [2025-01-10 06:47:14,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:14,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:14,344 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 06:47:14,351 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 06:47:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:47:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:47:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:47:14,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:47:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-01-10 06:47:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-01-10 06:47:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:47:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:47:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:47:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:47:14,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:47:14,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:47:14,372 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 06:47:14,468 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:47:14,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:47:14,780 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:47:14,781 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:47:15,135 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:47:15,136 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-10 06:47:15,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:47:15 BoogieIcfgContainer [2025-01-10 06:47:15,136 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:47:15,138 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:47:15,138 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:47:15,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:47:15,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:47:13" (1/3) ... [2025-01-10 06:47:15,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200fe470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:15, skipping insertion in model container [2025-01-10 06:47:15,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:14" (2/3) ... [2025-01-10 06:47:15,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@200fe470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:47:15, skipping insertion in model container [2025-01-10 06:47:15,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:47:15" (3/3) ... [2025-01-10 06:47:15,144 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2025-01-10 06:47:15,157 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:47:15,159 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_75-tricky_address2_racefree.i that has 2 procedures, 87 locations, 1 initial locations, 13 loop locations, and 14 error locations. [2025-01-10 06:47:15,160 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:47:15,208 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-01-10 06:47:15,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 90 places, 111 transitions, 229 flow [2025-01-10 06:47:15,306 INFO L124 PetriNetUnfolderBase]: 35/158 cut-off events. [2025-01-10 06:47:15,308 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:47:15,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 158 events. 35/158 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 597 event pairs, 0 based on Foata normal form. 0/102 useless extension candidates. Maximal degree in co-relation 96. Up to 8 conditions per place. [2025-01-10 06:47:15,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 90 places, 111 transitions, 229 flow [2025-01-10 06:47:15,316 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 90 places, 110 transitions, 227 flow [2025-01-10 06:47:15,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:47:15,334 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;@1c53b9d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:47:15,335 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2025-01-10 06:47:15,342 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:47:15,345 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:47:15,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:47:15,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:15,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:47:15,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:15,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash 746319, now seen corresponding path program 1 times [2025-01-10 06:47:15,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:15,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370190099] [2025-01-10 06:47:15,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:15,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:15,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:47:15,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:47:15,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:15,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:15,646 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 06:47:15,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:15,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370190099] [2025-01-10 06:47:15,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370190099] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:15,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:15,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:15,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780618702] [2025-01-10 06:47:15,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:15,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:15,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:15,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:15,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:15,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:15,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 110 transitions, 227 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 06:47:15,695 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:15,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:15,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:15,993 INFO L124 PetriNetUnfolderBase]: 440/1383 cut-off events. [2025-01-10 06:47:15,993 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-01-10 06:47:15,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2271 conditions, 1383 events. 440/1383 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9282 event pairs, 396 based on Foata normal form. 269/1484 useless extension candidates. Maximal degree in co-relation 2180. Up to 881 conditions per place. [2025-01-10 06:47:16,009 INFO L140 encePairwiseOnDemand]: 85/111 looper letters, 47 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2025-01-10 06:47:16,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 92 transitions, 291 flow [2025-01-10 06:47:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:16,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:16,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2025-01-10 06:47:16,022 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5427927927927928 [2025-01-10 06:47:16,023 INFO L175 Difference]: Start difference. First operand has 90 places, 110 transitions, 227 flow. Second operand 4 states and 241 transitions. [2025-01-10 06:47:16,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 92 transitions, 291 flow [2025-01-10 06:47:16,027 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 291 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:47:16,029 INFO L231 Difference]: Finished difference. Result has 95 places, 92 transitions, 211 flow [2025-01-10 06:47:16,031 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=211, PETRI_PLACES=95, PETRI_TRANSITIONS=92} [2025-01-10 06:47:16,033 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 5 predicate places. [2025-01-10 06:47:16,033 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 92 transitions, 211 flow [2025-01-10 06:47:16,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 06:47:16,034 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:16,034 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:47:16,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:47:16,034 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:16,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:16,035 INFO L85 PathProgramCache]: Analyzing trace with hash 759505895, now seen corresponding path program 1 times [2025-01-10 06:47:16,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:16,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534479270] [2025-01-10 06:47:16,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:16,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:16,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:16,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:16,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:16,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:16,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:16,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:16,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534479270] [2025-01-10 06:47:16,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534479270] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:16,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069118098] [2025-01-10 06:47:16,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:16,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:16,155 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 06:47:16,161 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 06:47:16,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:16,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:16,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:16,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:16,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:47:16,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:16,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:16,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:47:16,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069118098] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:16,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:47:16,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:47:16,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164571622] [2025-01-10 06:47:16,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:16,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:47:16,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:16,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:47:16,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:47:16,292 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:16,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 92 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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 06:47:16,294 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:16,294 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:16,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:16,672 INFO L124 PetriNetUnfolderBase]: 440/1382 cut-off events. [2025-01-10 06:47:16,673 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-01-10 06:47:16,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2281 conditions, 1382 events. 440/1382 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9279 event pairs, 396 based on Foata normal form. 1/1215 useless extension candidates. Maximal degree in co-relation 2263. Up to 876 conditions per place. [2025-01-10 06:47:16,684 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 43 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2025-01-10 06:47:16,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 91 transitions, 305 flow [2025-01-10 06:47:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 302 transitions. [2025-01-10 06:47:16,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45345345345345345 [2025-01-10 06:47:16,686 INFO L175 Difference]: Start difference. First operand has 95 places, 92 transitions, 211 flow. Second operand 6 states and 302 transitions. [2025-01-10 06:47:16,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 91 transitions, 305 flow [2025-01-10 06:47:16,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 91 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:47:16,688 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 217 flow [2025-01-10 06:47:16,688 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=217, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2025-01-10 06:47:16,689 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 8 predicate places. [2025-01-10 06:47:16,689 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 217 flow [2025-01-10 06:47:16,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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 06:47:16,689 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:16,689 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:47:16,698 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 06:47:16,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:16,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:16,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2069847024, now seen corresponding path program 1 times [2025-01-10 06:47:16,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:16,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778938211] [2025-01-10 06:47:16,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:16,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:16,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:47:16,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:47:16,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:16,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:16,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:47:16,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:16,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778938211] [2025-01-10 06:47:16,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778938211] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:16,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:16,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:16,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069431488] [2025-01-10 06:47:16,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:16,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:47:16,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:16,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:47:16,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:47:16,991 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:16,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 217 flow. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 06:47:16,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:16,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:16,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:17,239 INFO L124 PetriNetUnfolderBase]: 440/1381 cut-off events. [2025-01-10 06:47:17,239 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-10 06:47:17,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2283 conditions, 1381 events. 440/1381 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9282 event pairs, 396 based on Foata normal form. 1/1215 useless extension candidates. Maximal degree in co-relation 2259. Up to 879 conditions per place. [2025-01-10 06:47:17,244 INFO L140 encePairwiseOnDemand]: 108/111 looper letters, 44 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2025-01-10 06:47:17,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 90 transitions, 309 flow [2025-01-10 06:47:17,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:47:17,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:47:17,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 173 transitions. [2025-01-10 06:47:17,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5195195195195195 [2025-01-10 06:47:17,246 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 217 flow. Second operand 3 states and 173 transitions. [2025-01-10 06:47:17,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 90 transitions, 309 flow [2025-01-10 06:47:17,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 90 transitions, 287 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-10 06:47:17,248 INFO L231 Difference]: Finished difference. Result has 93 places, 90 transitions, 199 flow [2025-01-10 06:47:17,248 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=93, PETRI_TRANSITIONS=90} [2025-01-10 06:47:17,249 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 3 predicate places. [2025-01-10 06:47:17,249 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 90 transitions, 199 flow [2025-01-10 06:47:17,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 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 06:47:17,249 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:17,249 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:17,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:47:17,249 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:17,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:17,250 INFO L85 PathProgramCache]: Analyzing trace with hash 556945170, now seen corresponding path program 1 times [2025-01-10 06:47:17,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:17,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603640377] [2025-01-10 06:47:17,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:17,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:17,261 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:17,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:17,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:17,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:17,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:17,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603640377] [2025-01-10 06:47:17,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603640377] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:17,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711913595] [2025-01-10 06:47:17,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:17,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:17,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:17,359 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 06:47:17,361 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 06:47:17,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:17,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:17,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:17,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:17,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:47:17,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:17,464 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:17,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:17,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711913595] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:17,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:17,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-01-10 06:47:17,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735242160] [2025-01-10 06:47:17,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:17,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:47:17,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:17,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:47:17,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:47:17,500 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:17,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 90 transitions, 199 flow. Second operand has 10 states, 10 states have (on average 43.3) internal successors, (433), 10 states have internal predecessors, (433), 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 06:47:17,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:17,501 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:17,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:17,765 INFO L124 PetriNetUnfolderBase]: 440/1385 cut-off events. [2025-01-10 06:47:17,766 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2025-01-10 06:47:17,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2286 conditions, 1385 events. 440/1385 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 9259 event pairs, 396 based on Foata normal form. 2/1221 useless extension candidates. Maximal degree in co-relation 2252. Up to 877 conditions per place. [2025-01-10 06:47:17,773 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 44 selfloop transitions, 7 changer transitions 0/93 dead transitions. [2025-01-10 06:47:17,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 93 transitions, 316 flow [2025-01-10 06:47:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:47:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:47:17,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 347 transitions. [2025-01-10 06:47:17,777 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4465894465894466 [2025-01-10 06:47:17,778 INFO L175 Difference]: Start difference. First operand has 93 places, 90 transitions, 199 flow. Second operand 7 states and 347 transitions. [2025-01-10 06:47:17,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 93 transitions, 316 flow [2025-01-10 06:47:17,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 93 transitions, 302 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:17,781 INFO L231 Difference]: Finished difference. Result has 99 places, 93 transitions, 225 flow [2025-01-10 06:47:17,781 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=191, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=225, PETRI_PLACES=99, PETRI_TRANSITIONS=93} [2025-01-10 06:47:17,782 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2025-01-10 06:47:17,782 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 93 transitions, 225 flow [2025-01-10 06:47:17,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 43.3) internal successors, (433), 10 states have internal predecessors, (433), 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 06:47:17,782 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:17,784 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:17,795 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 06:47:17,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:17,993 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:17,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:17,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1742165998, now seen corresponding path program 2 times [2025-01-10 06:47:17,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:17,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788965767] [2025-01-10 06:47:17,994 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:17,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:18,004 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-10 06:47:18,009 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-01-10 06:47:18,009 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:18,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:47:18,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:18,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788965767] [2025-01-10 06:47:18,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788965767] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:18,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:18,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:18,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219579366] [2025-01-10 06:47:18,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:18,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:18,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:18,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:18,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:18,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 111 [2025-01-10 06:47:18,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 93 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 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 06:47:18,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:18,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 111 [2025-01-10 06:47:18,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:18,282 INFO L124 PetriNetUnfolderBase]: 436/1245 cut-off events. [2025-01-10 06:47:18,282 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2025-01-10 06:47:18,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2151 conditions, 1245 events. 436/1245 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 8170 event pairs, 0 based on Foata normal form. 19/1138 useless extension candidates. Maximal degree in co-relation 2112. Up to 824 conditions per place. [2025-01-10 06:47:18,286 INFO L140 encePairwiseOnDemand]: 105/111 looper letters, 86 selfloop transitions, 3 changer transitions 0/128 dead transitions. [2025-01-10 06:47:18,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 128 transitions, 473 flow [2025-01-10 06:47:18,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:18,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2025-01-10 06:47:18,287 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5653153153153153 [2025-01-10 06:47:18,287 INFO L175 Difference]: Start difference. First operand has 99 places, 93 transitions, 225 flow. Second operand 4 states and 251 transitions. [2025-01-10 06:47:18,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 128 transitions, 473 flow [2025-01-10 06:47:18,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 128 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:18,290 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 227 flow [2025-01-10 06:47:18,290 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=227, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2025-01-10 06:47:18,290 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 9 predicate places. [2025-01-10 06:47:18,290 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 227 flow [2025-01-10 06:47:18,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 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 06:47:18,291 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:18,291 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:18,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 06:47:18,291 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:18,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:18,291 INFO L85 PathProgramCache]: Analyzing trace with hash -481689379, now seen corresponding path program 1 times [2025-01-10 06:47:18,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:18,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703392737] [2025-01-10 06:47:18,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:18,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:18,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:47:18,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:47:18,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:18,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:18,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703392737] [2025-01-10 06:47:18,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703392737] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:18,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005447529] [2025-01-10 06:47:18,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:18,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:18,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:18,404 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 06:47:18,409 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 06:47:18,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-10 06:47:18,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-10 06:47:18,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:18,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:18,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:47:18,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:18,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:18,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:18,634 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:18,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005447529] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:18,634 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:18,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-10 06:47:18,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205248217] [2025-01-10 06:47:18,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:18,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:47:18,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:18,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:47:18,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:47:18,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:18,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 227 flow. Second operand has 18 states, 18 states have (on average 43.22222222222222) internal successors, (778), 18 states have internal predecessors, (778), 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 06:47:18,650 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:18,650 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:18,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:18,929 INFO L124 PetriNetUnfolderBase]: 439/1349 cut-off events. [2025-01-10 06:47:18,929 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2025-01-10 06:47:18,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2303 conditions, 1349 events. 439/1349 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8809 event pairs, 396 based on Foata normal form. 4/1215 useless extension candidates. Maximal degree in co-relation 2228. Up to 858 conditions per place. [2025-01-10 06:47:18,935 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 44 selfloop transitions, 15 changer transitions 0/99 dead transitions. [2025-01-10 06:47:18,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 99 transitions, 393 flow [2025-01-10 06:47:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:47:18,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:47:18,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 693 transitions. [2025-01-10 06:47:18,937 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.41621621621621624 [2025-01-10 06:47:18,937 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 227 flow. Second operand 15 states and 693 transitions. [2025-01-10 06:47:18,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 99 transitions, 393 flow [2025-01-10 06:47:18,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 99 transitions, 387 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-01-10 06:47:18,939 INFO L231 Difference]: Finished difference. Result has 114 places, 99 transitions, 318 flow [2025-01-10 06:47:18,939 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=318, PETRI_PLACES=114, PETRI_TRANSITIONS=99} [2025-01-10 06:47:18,939 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 24 predicate places. [2025-01-10 06:47:18,939 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 99 transitions, 318 flow [2025-01-10 06:47:18,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 43.22222222222222) internal successors, (778), 18 states have internal predecessors, (778), 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 06:47:18,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:18,940 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:18,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 06:47:19,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:19,140 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:19,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:19,141 INFO L85 PathProgramCache]: Analyzing trace with hash 500453085, now seen corresponding path program 2 times [2025-01-10 06:47:19,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:19,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872568131] [2025-01-10 06:47:19,141 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:19,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:19,160 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-10 06:47:19,182 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:47:19,182 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:47:19,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:19,426 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:19,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:19,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872568131] [2025-01-10 06:47:19,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872568131] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:19,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711527596] [2025-01-10 06:47:19,426 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:19,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:19,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:19,428 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 06:47:19,430 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 06:47:19,517 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 30 statements into 2 equivalence classes. [2025-01-10 06:47:19,562 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:47:19,563 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:47:19,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:19,567 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:47:19,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:19,619 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:19,619 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:19,769 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:19,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711527596] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:19,770 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:19,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-01-10 06:47:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287106487] [2025-01-10 06:47:19,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:19,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 06:47:19,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:19,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 06:47:19,771 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-10 06:47:19,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 111 [2025-01-10 06:47:19,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 99 transitions, 318 flow. Second operand has 23 states, 23 states have (on average 43.21739130434783) internal successors, (994), 23 states have internal predecessors, (994), 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 06:47:19,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:19,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 111 [2025-01-10 06:47:19,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:20,139 INFO L124 PetriNetUnfolderBase]: 439/1358 cut-off events. [2025-01-10 06:47:20,140 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2025-01-10 06:47:20,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 1358 events. 439/1358 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 8860 event pairs, 396 based on Foata normal form. 3/1223 useless extension candidates. Maximal degree in co-relation 2211. Up to 858 conditions per place. [2025-01-10 06:47:20,144 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 44 selfloop transitions, 21 changer transitions 0/105 dead transitions. [2025-01-10 06:47:20,145 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 105 transitions, 502 flow [2025-01-10 06:47:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-10 06:47:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-10 06:47:20,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 950 transitions. [2025-01-10 06:47:20,147 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40755040755040756 [2025-01-10 06:47:20,147 INFO L175 Difference]: Start difference. First operand has 114 places, 99 transitions, 318 flow. Second operand 21 states and 950 transitions. [2025-01-10 06:47:20,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 105 transitions, 502 flow [2025-01-10 06:47:20,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 105 transitions, 492 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-01-10 06:47:20,150 INFO L231 Difference]: Finished difference. Result has 133 places, 105 transitions, 419 flow [2025-01-10 06:47:20,150 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=419, PETRI_PLACES=133, PETRI_TRANSITIONS=105} [2025-01-10 06:47:20,151 INFO L279 CegarLoopForPetriNet]: 90 programPoint places, 43 predicate places. [2025-01-10 06:47:20,151 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 105 transitions, 419 flow [2025-01-10 06:47:20,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 43.21739130434783) internal successors, (994), 23 states have internal predecessors, (994), 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 06:47:20,151 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:20,151 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:20,158 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 06:47:20,356 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,SelfDestructingSolverStorable6 [2025-01-10 06:47:20,356 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2025-01-10 06:47:20,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:20,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1985628229, now seen corresponding path program 3 times [2025-01-10 06:47:20,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:20,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861783287] [2025-01-10 06:47:20,357 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:47:20,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:20,366 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 39 statements into 11 equivalence classes. [2025-01-10 06:47:20,407 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 06:47:20,407 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2025-01-10 06:47:20,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:20,407 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:47:20,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-01-10 06:47:20,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-01-10 06:47:20,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:20,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:20,454 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:47:20,455 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 06:47:20,458 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2025-01-10 06:47:20,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2025-01-10 06:47:20,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2025-01-10 06:47:20,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:47:20,462 INFO L422 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2025-01-10 06:47:20,464 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-10 06:47:20,464 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-10 06:47:20,500 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-10 06:47:20,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 157 transitions, 330 flow [2025-01-10 06:47:20,513 INFO L124 PetriNetUnfolderBase]: 59/270 cut-off events. [2025-01-10 06:47:20,513 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-01-10 06:47:20,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 270 events. 59/270 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1216 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 160. Up to 12 conditions per place. [2025-01-10 06:47:20,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 157 transitions, 330 flow [2025-01-10 06:47:20,516 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 157 transitions, 330 flow [2025-01-10 06:47:20,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:47:20,517 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;@1c53b9d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:47:20,517 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2025-01-10 06:47:20,518 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:47:20,518 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:47:20,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:47:20,518 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:20,518 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:47:20,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:20,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:20,518 INFO L85 PathProgramCache]: Analyzing trace with hash 902220, now seen corresponding path program 1 times [2025-01-10 06:47:20,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:20,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872807859] [2025-01-10 06:47:20,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:20,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:20,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:47:20,528 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:47:20,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:20,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:20,550 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 06:47:20,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:20,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872807859] [2025-01-10 06:47:20,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872807859] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:20,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:20,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:20,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439914524] [2025-01-10 06:47:20,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:20,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:20,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:20,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:20,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:20,554 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:20,554 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 157 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 06:47:20,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:20,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:20,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:23,062 INFO L124 PetriNetUnfolderBase]: 17181/36817 cut-off events. [2025-01-10 06:47:23,062 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2025-01-10 06:47:23,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62565 conditions, 36817 events. 17181/36817 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 375385 event pairs, 15876 based on Foata normal form. 8193/40951 useless extension candidates. Maximal degree in co-relation 50867. Up to 25644 conditions per place. [2025-01-10 06:47:23,215 INFO L140 encePairwiseOnDemand]: 121/157 looper letters, 68 selfloop transitions, 3 changer transitions 0/129 dead transitions. [2025-01-10 06:47:23,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 129 transitions, 416 flow [2025-01-10 06:47:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:23,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2025-01-10 06:47:23,217 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.535031847133758 [2025-01-10 06:47:23,217 INFO L175 Difference]: Start difference. First operand has 126 places, 157 transitions, 330 flow. Second operand 4 states and 336 transitions. [2025-01-10 06:47:23,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 129 transitions, 416 flow [2025-01-10 06:47:23,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 129 transitions, 416 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:47:23,220 INFO L231 Difference]: Finished difference. Result has 131 places, 129 transitions, 294 flow [2025-01-10 06:47:23,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=131, PETRI_TRANSITIONS=129} [2025-01-10 06:47:23,220 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 5 predicate places. [2025-01-10 06:47:23,220 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 129 transitions, 294 flow [2025-01-10 06:47:23,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 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 06:47:23,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:23,223 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-01-10 06:47:23,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-10 06:47:23,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:23,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1109141191, now seen corresponding path program 1 times [2025-01-10 06:47:23,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:23,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105349187] [2025-01-10 06:47:23,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:23,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:23,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:23,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:23,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:23,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:23,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:23,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:23,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105349187] [2025-01-10 06:47:23,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105349187] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:23,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062335936] [2025-01-10 06:47:23,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:23,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:23,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:23,274 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 06:47:23,284 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 06:47:23,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:47:23,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:47:23,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:23,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:23,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:47:23,340 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:23,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:23,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:47:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062335936] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:23,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:47:23,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-10 06:47:23,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714815818] [2025-01-10 06:47:23,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:23,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:47:23,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:23,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:47:23,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:47:23,361 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:23,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 129 transitions, 294 flow. Second operand has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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 06:47:23,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:23,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:23,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:25,522 INFO L124 PetriNetUnfolderBase]: 17181/36816 cut-off events. [2025-01-10 06:47:25,523 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2025-01-10 06:47:25,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62575 conditions, 36816 events. 17181/36816 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 375312 event pairs, 15876 based on Foata normal form. 1/32758 useless extension candidates. Maximal degree in co-relation 62556. Up to 25639 conditions per place. [2025-01-10 06:47:25,718 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 64 selfloop transitions, 6 changer transitions 0/128 dead transitions. [2025-01-10 06:47:25,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 128 transitions, 430 flow [2025-01-10 06:47:25,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:25,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:25,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 419 transitions. [2025-01-10 06:47:25,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4447983014861996 [2025-01-10 06:47:25,720 INFO L175 Difference]: Start difference. First operand has 131 places, 129 transitions, 294 flow. Second operand 6 states and 419 transitions. [2025-01-10 06:47:25,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 128 transitions, 430 flow [2025-01-10 06:47:25,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 128 transitions, 428 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:47:25,724 INFO L231 Difference]: Finished difference. Result has 134 places, 128 transitions, 300 flow [2025-01-10 06:47:25,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=300, PETRI_PLACES=134, PETRI_TRANSITIONS=128} [2025-01-10 06:47:25,725 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 8 predicate places. [2025-01-10 06:47:25,725 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 128 transitions, 300 flow [2025-01-10 06:47:25,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.833333333333336) internal successors, (353), 6 states have internal predecessors, (353), 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 06:47:25,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:25,725 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-01-10 06:47:25,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-10 06:47:25,930 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 06:47:25,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:25,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:25,930 INFO L85 PathProgramCache]: Analyzing trace with hash 23639469, now seen corresponding path program 1 times [2025-01-10 06:47:25,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:25,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191383406] [2025-01-10 06:47:25,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:25,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:25,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:47:25,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:47:25,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:25,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:25,957 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:47:25,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:25,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191383406] [2025-01-10 06:47:25,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191383406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:25,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:25,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:25,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200664528] [2025-01-10 06:47:25,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:25,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:47:25,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:25,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:47:25,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:47:25,963 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:25,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 128 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 06:47:25,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:25,964 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:25,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:27,825 INFO L124 PetriNetUnfolderBase]: 17181/36815 cut-off events. [2025-01-10 06:47:27,825 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2025-01-10 06:47:27,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62577 conditions, 36815 events. 17181/36815 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 375290 event pairs, 15876 based on Foata normal form. 1/32758 useless extension candidates. Maximal degree in co-relation 62552. Up to 25642 conditions per place. [2025-01-10 06:47:27,979 INFO L140 encePairwiseOnDemand]: 154/157 looper letters, 65 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2025-01-10 06:47:27,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 127 transitions, 434 flow [2025-01-10 06:47:27,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:47:27,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:47:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2025-01-10 06:47:27,980 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5138004246284501 [2025-01-10 06:47:27,981 INFO L175 Difference]: Start difference. First operand has 134 places, 128 transitions, 300 flow. Second operand 3 states and 242 transitions. [2025-01-10 06:47:27,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 127 transitions, 434 flow [2025-01-10 06:47:27,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 127 transitions, 412 flow, removed 3 selfloop flow, removed 6 redundant places. [2025-01-10 06:47:27,983 INFO L231 Difference]: Finished difference. Result has 129 places, 127 transitions, 282 flow [2025-01-10 06:47:27,983 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=129, PETRI_TRANSITIONS=127} [2025-01-10 06:47:27,983 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 3 predicate places. [2025-01-10 06:47:27,983 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 127 transitions, 282 flow [2025-01-10 06:47:27,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 06:47:27,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:27,984 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:27,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 06:47:27,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:27,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1246553691, now seen corresponding path program 1 times [2025-01-10 06:47:27,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:27,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206194921] [2025-01-10 06:47:27,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:27,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:27,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:27,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:27,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:27,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:28,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:28,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:28,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206194921] [2025-01-10 06:47:28,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206194921] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:28,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104011850] [2025-01-10 06:47:28,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:28,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:28,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:28,045 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 06:47:28,046 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 06:47:28,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:47:28,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:47:28,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:28,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:28,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:47:28,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:28,136 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:28,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:28,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104011850] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:28,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:28,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2025-01-10 06:47:28,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114043113] [2025-01-10 06:47:28,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:28,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:47:28,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:28,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:47:28,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:47:28,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:28,169 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 127 transitions, 282 flow. Second operand has 10 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 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 06:47:28,169 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:28,169 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:28,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:30,381 INFO L124 PetriNetUnfolderBase]: 17181/36819 cut-off events. [2025-01-10 06:47:30,382 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2025-01-10 06:47:30,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62580 conditions, 36819 events. 17181/36819 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 1078. Compared 375335 event pairs, 15876 based on Foata normal form. 2/32764 useless extension candidates. Maximal degree in co-relation 62545. Up to 25640 conditions per place. [2025-01-10 06:47:30,518 INFO L140 encePairwiseOnDemand]: 153/157 looper letters, 65 selfloop transitions, 7 changer transitions 0/130 dead transitions. [2025-01-10 06:47:30,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 130 transitions, 441 flow [2025-01-10 06:47:30,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 06:47:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-01-10 06:47:30,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 480 transitions. [2025-01-10 06:47:30,521 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4367606915377616 [2025-01-10 06:47:30,521 INFO L175 Difference]: Start difference. First operand has 129 places, 127 transitions, 282 flow. Second operand 7 states and 480 transitions. [2025-01-10 06:47:30,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 130 transitions, 441 flow [2025-01-10 06:47:30,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 130 transitions, 427 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:30,523 INFO L231 Difference]: Finished difference. Result has 135 places, 130 transitions, 308 flow [2025-01-10 06:47:30,524 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=308, PETRI_PLACES=135, PETRI_TRANSITIONS=130} [2025-01-10 06:47:30,524 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 9 predicate places. [2025-01-10 06:47:30,524 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 130 transitions, 308 flow [2025-01-10 06:47:30,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 59.3) internal successors, (593), 10 states have internal predecessors, (593), 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 06:47:30,525 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:30,525 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:30,531 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 06:47:30,725 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,SelfDestructingSolverStorable11 [2025-01-10 06:47:30,726 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:30,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:30,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2123270021, now seen corresponding path program 2 times [2025-01-10 06:47:30,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:30,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769606608] [2025-01-10 06:47:30,726 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:30,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:30,732 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 15 statements into 2 equivalence classes. [2025-01-10 06:47:30,734 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 6 of 15 statements. [2025-01-10 06:47:30,735 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:30,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:30,761 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-10 06:47:30,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:30,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769606608] [2025-01-10 06:47:30,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769606608] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:30,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:30,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:30,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284698897] [2025-01-10 06:47:30,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:30,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:30,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:30,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:30,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:30,771 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 157 [2025-01-10 06:47:30,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 130 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 06:47:30,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:30,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 157 [2025-01-10 06:47:30,771 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:33,073 INFO L124 PetriNetUnfolderBase]: 19364/41344 cut-off events. [2025-01-10 06:47:33,074 INFO L125 PetriNetUnfolderBase]: For 122/122 co-relation queries the response was YES. [2025-01-10 06:47:33,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70373 conditions, 41344 events. 19364/41344 cut-off events. For 122/122 co-relation queries the response was YES. Maximal size of possible extension queue 1152. Compared 426872 event pairs, 11718 based on Foata normal form. 19/36807 useless extension candidates. Maximal degree in co-relation 70333. Up to 28850 conditions per place. [2025-01-10 06:47:33,308 INFO L140 encePairwiseOnDemand]: 151/157 looper letters, 111 selfloop transitions, 3 changer transitions 0/169 dead transitions. [2025-01-10 06:47:33,308 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 169 transitions, 614 flow [2025-01-10 06:47:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:33,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:33,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 340 transitions. [2025-01-10 06:47:33,309 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5414012738853503 [2025-01-10 06:47:33,309 INFO L175 Difference]: Start difference. First operand has 135 places, 130 transitions, 308 flow. Second operand 4 states and 340 transitions. [2025-01-10 06:47:33,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 169 transitions, 614 flow [2025-01-10 06:47:33,311 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 169 transitions, 610 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:33,312 INFO L231 Difference]: Finished difference. Result has 138 places, 132 transitions, 328 flow [2025-01-10 06:47:33,312 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=328, PETRI_PLACES=138, PETRI_TRANSITIONS=132} [2025-01-10 06:47:33,313 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 12 predicate places. [2025-01-10 06:47:33,313 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 132 transitions, 328 flow [2025-01-10 06:47:33,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 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 06:47:33,313 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:33,313 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:33,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 06:47:33,314 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:33,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:33,314 INFO L85 PathProgramCache]: Analyzing trace with hash -2002619688, now seen corresponding path program 1 times [2025-01-10 06:47:33,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:33,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088812217] [2025-01-10 06:47:33,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:33,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:33,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:47:33,327 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:47:33,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:33,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:33,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088812217] [2025-01-10 06:47:33,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088812217] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:33,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8995899] [2025-01-10 06:47:33,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:33,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:33,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:33,633 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 06:47:33,647 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 06:47:33,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 06:47:33,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 06:47:33,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:33,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:33,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:47:33,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:33,766 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:33,837 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:33,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8995899] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:33,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:33,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2025-01-10 06:47:33,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261982614] [2025-01-10 06:47:33,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:33,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-01-10 06:47:33,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:33,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-01-10 06:47:33,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2025-01-10 06:47:33,855 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:33,856 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 132 transitions, 328 flow. Second operand has 18 states, 18 states have (on average 59.27777777777778) internal successors, (1067), 18 states have internal predecessors, (1067), 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 06:47:33,856 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:33,856 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:33,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:36,162 INFO L124 PetriNetUnfolderBase]: 17179/36795 cut-off events. [2025-01-10 06:47:36,163 INFO L125 PetriNetUnfolderBase]: For 904/1608 co-relation queries the response was YES. [2025-01-10 06:47:36,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63373 conditions, 36795 events. 17179/36795 cut-off events. For 904/1608 co-relation queries the response was YES. Maximal size of possible extension queue 1055. Compared 374548 event pairs, 15876 based on Foata normal form. 20/33121 useless extension candidates. Maximal degree in co-relation 63296. Up to 25631 conditions per place. [2025-01-10 06:47:36,406 INFO L140 encePairwiseOnDemand]: 153/157 looper letters, 66 selfloop transitions, 15 changer transitions 0/140 dead transitions. [2025-01-10 06:47:36,407 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 140 transitions, 538 flow [2025-01-10 06:47:36,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 06:47:36,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2025-01-10 06:47:36,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 954 transitions. [2025-01-10 06:47:36,409 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4050955414012739 [2025-01-10 06:47:36,410 INFO L175 Difference]: Start difference. First operand has 138 places, 132 transitions, 328 flow. Second operand 15 states and 954 transitions. [2025-01-10 06:47:36,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 140 transitions, 538 flow [2025-01-10 06:47:36,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 140 transitions, 536 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:47:36,413 INFO L231 Difference]: Finished difference. Result has 155 places, 140 transitions, 423 flow [2025-01-10 06:47:36,414 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=423, PETRI_PLACES=155, PETRI_TRANSITIONS=140} [2025-01-10 06:47:36,414 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 29 predicate places. [2025-01-10 06:47:36,414 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 140 transitions, 423 flow [2025-01-10 06:47:36,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 59.27777777777778) internal successors, (1067), 18 states have internal predecessors, (1067), 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 06:47:36,415 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:36,415 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:36,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 06:47:36,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:36,616 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:36,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:36,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1273938280, now seen corresponding path program 2 times [2025-01-10 06:47:36,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:36,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204903422] [2025-01-10 06:47:36,617 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:36,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:36,627 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 32 statements into 2 equivalence classes. [2025-01-10 06:47:36,633 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 32 statements. [2025-01-10 06:47:36,633 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:36,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:47:36,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:36,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204903422] [2025-01-10 06:47:36,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204903422] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:36,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:36,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 06:47:36,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106597556] [2025-01-10 06:47:36,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:36,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:47:36,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:36,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:47:36,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 06:47:36,693 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 157 [2025-01-10 06:47:36,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 140 transitions, 423 flow. Second operand has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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 06:47:36,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:36,694 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 157 [2025-01-10 06:47:36,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:39,868 INFO L124 PetriNetUnfolderBase]: 17783/34748 cut-off events. [2025-01-10 06:47:39,868 INFO L125 PetriNetUnfolderBase]: For 1581/1581 co-relation queries the response was YES. [2025-01-10 06:47:40,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63343 conditions, 34748 events. 17783/34748 cut-off events. For 1581/1581 co-relation queries the response was YES. Maximal size of possible extension queue 1033. Compared 335526 event pairs, 781 based on Foata normal form. 361/31957 useless extension candidates. Maximal degree in co-relation 63242. Up to 21890 conditions per place. [2025-01-10 06:47:40,170 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 187 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2025-01-10 06:47:40,171 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 248 transitions, 1023 flow [2025-01-10 06:47:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 523 transitions. [2025-01-10 06:47:40,172 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5552016985138004 [2025-01-10 06:47:40,173 INFO L175 Difference]: Start difference. First operand has 155 places, 140 transitions, 423 flow. Second operand 6 states and 523 transitions. [2025-01-10 06:47:40,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 248 transitions, 1023 flow [2025-01-10 06:47:40,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 248 transitions, 1013 flow, removed 1 selfloop flow, removed 4 redundant places. [2025-01-10 06:47:40,207 INFO L231 Difference]: Finished difference. Result has 155 places, 139 transitions, 421 flow [2025-01-10 06:47:40,208 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=421, PETRI_PLACES=155, PETRI_TRANSITIONS=139} [2025-01-10 06:47:40,208 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 29 predicate places. [2025-01-10 06:47:40,209 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 139 transitions, 421 flow [2025-01-10 06:47:40,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.0) internal successors, (354), 6 states have internal predecessors, (354), 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 06:47:40,210 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:40,210 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:40,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 06:47:40,210 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:40,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash -837380103, now seen corresponding path program 1 times [2025-01-10 06:47:40,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:40,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491265551] [2025-01-10 06:47:40,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:40,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:40,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-01-10 06:47:40,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-01-10 06:47:40,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:40,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:40,288 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-01-10 06:47:40,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:40,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491265551] [2025-01-10 06:47:40,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491265551] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:40,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:40,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:40,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891618387] [2025-01-10 06:47:40,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:40,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:40,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:40,291 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:40,291 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:40,297 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 157 [2025-01-10 06:47:40,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 139 transitions, 421 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 06:47:40,298 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:40,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 157 [2025-01-10 06:47:40,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:43,026 INFO L124 PetriNetUnfolderBase]: 17454/33290 cut-off events. [2025-01-10 06:47:43,027 INFO L125 PetriNetUnfolderBase]: For 3048/3048 co-relation queries the response was YES. [2025-01-10 06:47:43,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62079 conditions, 33290 events. 17454/33290 cut-off events. For 3048/3048 co-relation queries the response was YES. Maximal size of possible extension queue 978. Compared 308735 event pairs, 2174 based on Foata normal form. 361/31045 useless extension candidates. Maximal degree in co-relation 61982. Up to 23384 conditions per place. [2025-01-10 06:47:43,331 INFO L140 encePairwiseOnDemand]: 152/157 looper letters, 150 selfloop transitions, 6 changer transitions 0/211 dead transitions. [2025-01-10 06:47:43,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 211 transitions, 875 flow [2025-01-10 06:47:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:47:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:47:43,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2025-01-10 06:47:43,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.589171974522293 [2025-01-10 06:47:43,333 INFO L175 Difference]: Start difference. First operand has 155 places, 139 transitions, 421 flow. Second operand 4 states and 370 transitions. [2025-01-10 06:47:43,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 211 transitions, 875 flow [2025-01-10 06:47:43,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 211 transitions, 859 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-01-10 06:47:43,362 INFO L231 Difference]: Finished difference. Result has 153 places, 139 transitions, 421 flow [2025-01-10 06:47:43,363 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=421, PETRI_PLACES=153, PETRI_TRANSITIONS=139} [2025-01-10 06:47:43,363 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 27 predicate places. [2025-01-10 06:47:43,363 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 139 transitions, 421 flow [2025-01-10 06:47:43,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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 06:47:43,364 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:43,364 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:43,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 06:47:43,364 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:43,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:43,365 INFO L85 PathProgramCache]: Analyzing trace with hash -633441031, now seen corresponding path program 1 times [2025-01-10 06:47:43,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:43,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401124054] [2025-01-10 06:47:43,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:43,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:43,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 06:47:43,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 06:47:43,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:43,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:43,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:43,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401124054] [2025-01-10 06:47:43,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401124054] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:47:43,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [811101273] [2025-01-10 06:47:43,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:43,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:47:43,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:43,645 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 06:47:43,647 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 06:47:43,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 34 statements into 1 equivalence classes. [2025-01-10 06:47:43,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 34 of 34 statements. [2025-01-10 06:47:43,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:43,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:43,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:47:43,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:47:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:43,784 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:47:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:47:43,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [811101273] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:47:43,926 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:47:43,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2025-01-10 06:47:43,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657938617] [2025-01-10 06:47:43,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:47:43,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-10 06:47:43,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:43,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-10 06:47:43,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2025-01-10 06:47:43,939 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:43,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 139 transitions, 421 flow. Second operand has 23 states, 23 states have (on average 59.43478260869565) internal successors, (1367), 23 states have internal predecessors, (1367), 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 06:47:43,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:43,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:43,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:46,467 INFO L124 PetriNetUnfolderBase]: 17179/36764 cut-off events. [2025-01-10 06:47:46,468 INFO L125 PetriNetUnfolderBase]: For 3249/3249 co-relation queries the response was YES. [2025-01-10 06:47:46,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64122 conditions, 36764 events. 17179/36764 cut-off events. For 3249/3249 co-relation queries the response was YES. Maximal size of possible extension queue 1060. Compared 373781 event pairs, 15876 based on Foata normal form. 3/33073 useless extension candidates. Maximal degree in co-relation 63991. Up to 25616 conditions per place. [2025-01-10 06:47:46,683 INFO L140 encePairwiseOnDemand]: 153/157 looper letters, 67 selfloop transitions, 21 changer transitions 0/145 dead transitions. [2025-01-10 06:47:46,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 145 transitions, 651 flow [2025-01-10 06:47:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-01-10 06:47:46,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2025-01-10 06:47:46,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1307 transitions. [2025-01-10 06:47:46,685 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3964209887776767 [2025-01-10 06:47:46,685 INFO L175 Difference]: Start difference. First operand has 153 places, 139 transitions, 421 flow. Second operand 21 states and 1307 transitions. [2025-01-10 06:47:46,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 145 transitions, 651 flow [2025-01-10 06:47:46,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 145 transitions, 643 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:47:46,688 INFO L231 Difference]: Finished difference. Result has 174 places, 145 transitions, 524 flow [2025-01-10 06:47:46,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=413, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=524, PETRI_PLACES=174, PETRI_TRANSITIONS=145} [2025-01-10 06:47:46,689 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 48 predicate places. [2025-01-10 06:47:46,689 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 145 transitions, 524 flow [2025-01-10 06:47:46,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 59.43478260869565) internal successors, (1367), 23 states have internal predecessors, (1367), 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 06:47:46,690 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:46,690 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:47:46,696 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 06:47:46,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-10 06:47:46,890 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:46,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:46,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1367647550, now seen corresponding path program 2 times [2025-01-10 06:47:46,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:46,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164762350] [2025-01-10 06:47:46,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:47:46,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:46,898 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 43 statements into 2 equivalence classes. [2025-01-10 06:47:46,932 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 13 of 43 statements. [2025-01-10 06:47:46,933 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:47:46,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:47,484 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2025-01-10 06:47:47,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:47,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164762350] [2025-01-10 06:47:47,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164762350] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:47,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:47,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:47:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823067726] [2025-01-10 06:47:47,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:47,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:47:47,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:47,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:47:47,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:47:47,496 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 157 [2025-01-10 06:47:47,497 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 145 transitions, 524 flow. Second operand has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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 06:47:47,497 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:47,497 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 157 [2025-01-10 06:47:47,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:47:50,670 INFO L124 PetriNetUnfolderBase]: 21232/43385 cut-off events. [2025-01-10 06:47:50,671 INFO L125 PetriNetUnfolderBase]: For 2603/2603 co-relation queries the response was YES. [2025-01-10 06:47:50,854 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77459 conditions, 43385 events. 21232/43385 cut-off events. For 2603/2603 co-relation queries the response was YES. Maximal size of possible extension queue 1289. Compared 442474 event pairs, 2820 based on Foata normal form. 544/40151 useless extension candidates. Maximal degree in co-relation 77299. Up to 23250 conditions per place. [2025-01-10 06:47:50,977 INFO L140 encePairwiseOnDemand]: 149/157 looper letters, 238 selfloop transitions, 11 changer transitions 0/304 dead transitions. [2025-01-10 06:47:50,977 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 304 transitions, 1410 flow [2025-01-10 06:47:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:47:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:47:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 577 transitions. [2025-01-10 06:47:50,979 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6125265392781316 [2025-01-10 06:47:50,979 INFO L175 Difference]: Start difference. First operand has 174 places, 145 transitions, 524 flow. Second operand 6 states and 577 transitions. [2025-01-10 06:47:50,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 304 transitions, 1410 flow [2025-01-10 06:47:50,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 304 transitions, 1367 flow, removed 1 selfloop flow, removed 13 redundant places. [2025-01-10 06:47:50,984 INFO L231 Difference]: Finished difference. Result has 170 places, 157 transitions, 564 flow [2025-01-10 06:47:50,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=157, PETRI_DIFFERENCE_MINUEND_FLOW=481, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=564, PETRI_PLACES=170, PETRI_TRANSITIONS=157} [2025-01-10 06:47:50,985 INFO L279 CegarLoopForPetriNet]: 126 programPoint places, 44 predicate places. [2025-01-10 06:47:50,985 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 157 transitions, 564 flow [2025-01-10 06:47:50,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 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 06:47:50,985 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:50,986 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:47:50,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-10 06:47:50,986 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2025-01-10 06:47:50,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:50,986 INFO L85 PathProgramCache]: Analyzing trace with hash 340839963, now seen corresponding path program 1 times [2025-01-10 06:47:50,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:50,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028823809] [2025-01-10 06:47:50,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:50,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:50,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 06:47:51,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 06:47:51,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:51,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:51,006 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-10 06:47:51,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 06:47:51,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 06:47:51,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:51,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-10 06:47:51,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-10 06:47:51,025 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-10 06:47:51,025 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2025-01-10 06:47:51,025 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2025-01-10 06:47:51,026 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2025-01-10 06:47:51,027 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2025-01-10 06:47:51,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-10 06:47:51,027 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:47:51,028 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-10 06:47:51,028 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-01-10 06:47:51,075 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-01-10 06:47:51,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 162 places, 203 transitions, 433 flow [2025-01-10 06:47:51,139 INFO L124 PetriNetUnfolderBase]: 86/401 cut-off events. [2025-01-10 06:47:51,139 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-01-10 06:47:51,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 401 events. 86/401 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1939 event pairs, 1 based on Foata normal form. 0/261 useless extension candidates. Maximal degree in co-relation 279. Up to 16 conditions per place. [2025-01-10 06:47:51,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 162 places, 203 transitions, 433 flow [2025-01-10 06:47:51,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 162 places, 203 transitions, 433 flow [2025-01-10 06:47:51,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:47:51,146 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;@1c53b9d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:47:51,146 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2025-01-10 06:47:51,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:47:51,148 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2025-01-10 06:47:51,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:47:51,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:47:51,148 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-01-10 06:47:51,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2025-01-10 06:47:51,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:47:51,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1103799, now seen corresponding path program 1 times [2025-01-10 06:47:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:47:51,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468332510] [2025-01-10 06:47:51,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:47:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:47:51,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-01-10 06:47:51,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-01-10 06:47:51,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:47:51,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:47:51,176 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 06:47:51,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:47:51,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468332510] [2025-01-10 06:47:51,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468332510] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:47:51,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:47:51,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:47:51,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266751111] [2025-01-10 06:47:51,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:47:51,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:47:51,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:47:51,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:47:51,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:47:51,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 203 [2025-01-10 06:47:51,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 203 transitions, 433 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 06:47:51,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:47:51,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 203 [2025-01-10 06:47:51,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand