./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 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_90-arrayloop2_racing.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:47:56,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:47:56,982 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 06:47:56,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:47:56,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:47:57,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:47:57,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:47:57,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:47:57,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:47:57,010 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:47:57,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:47:57,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:47:57,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:47:57,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:47:57,010 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:47:57,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:47:57,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:47:57,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:47:57,012 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:57,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:47:57,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:57,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:47:57,013 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2025-01-10 06:47:57,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:47:57,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:47:57,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:47:57,303 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:47:57,303 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:47:57,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-01-10 06:47:58,584 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce6b6c705/618ce7da089f49d4b5eb026347345595/FLAG1f397e27d [2025-01-10 06:47:58,897 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:47:58,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2025-01-10 06:47:58,909 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce6b6c705/618ce7da089f49d4b5eb026347345595/FLAG1f397e27d [2025-01-10 06:47:58,922 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce6b6c705/618ce7da089f49d4b5eb026347345595 [2025-01-10 06:47:58,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:47:58,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:47:58,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:58,928 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:47:58,931 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:47:58,932 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:58" (1/1) ... [2025-01-10 06:47:58,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537c6340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:58, skipping insertion in model container [2025-01-10 06:47:58,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:47:58" (1/1) ... [2025-01-10 06:47:58,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:47:59,207 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,207 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,208 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,208 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:59,266 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:47:59,315 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,315 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,315 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,315 WARN L1731 CHandler]: Possible shadowing of function new [2025-01-10 06:47:59,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:47:59,382 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:47:59,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59 WrapperNode [2025-01-10 06:47:59,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:47:59,383 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:59,383 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:47:59,383 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:47:59,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,400 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,421 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 388 [2025-01-10 06:47:59,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:47:59,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:47:59,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:47:59,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:47:59,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,455 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 5, 2, 94, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 0, 70, 0]. The 15 writes are split as follows [0, 0, 1, 13, 1]. [2025-01-10 06:47:59,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,466 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,468 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,473 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,474 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:47:59,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:47:59,477 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:47:59,477 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:47:59,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (1/1) ... [2025-01-10 06:47:59,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:47:59,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:47:59,506 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 06:47:59,511 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 06:47:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:47:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-01-10 06:47:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-01-10 06:47:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-01-10 06:47:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-01-10 06:47:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-01-10 06:47:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-01-10 06:47:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-01-10 06:47:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:47:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-01-10 06:47:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2025-01-10 06:47:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2025-01-10 06:47:59,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 06:47:59,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-01-10 06:47:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-01-10 06:47:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-10 06:47:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:47:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:47:59,534 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 06:47:59,698 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:47:59,700 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:48:00,206 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-10 06:48:00,206 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:48:00,660 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:48:00,660 INFO L312 CfgBuilder]: Removed 10 assume(true) statements. [2025-01-10 06:48:00,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:00 BoogieIcfgContainer [2025-01-10 06:48:00,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:48:00,663 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:48:00,663 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:48:00,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:48:00,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:47:58" (1/3) ... [2025-01-10 06:48:00,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99cdd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:00, skipping insertion in model container [2025-01-10 06:48:00,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:47:59" (2/3) ... [2025-01-10 06:48:00,669 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99cdd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:48:00, skipping insertion in model container [2025-01-10 06:48:00,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:48:00" (3/3) ... [2025-01-10 06:48:00,670 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2025-01-10 06:48:00,681 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:48:00,684 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 134 locations, 1 initial locations, 20 loop locations, and 30 error locations. [2025-01-10 06:48:00,685 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-10 06:48:00,759 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-10 06:48:00,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2025-01-10 06:48:00,865 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2025-01-10 06:48:00,867 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-01-10 06:48:00,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1372 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2025-01-10 06:48:00,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2025-01-10 06:48:00,881 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2025-01-10 06:48:00,891 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:48:00,900 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;@3c2cb8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:48:00,901 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2025-01-10 06:48:00,908 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-10 06:48:00,908 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-01-10 06:48:00,908 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-10 06:48:00,908 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:00,909 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:00,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:00,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:00,915 INFO L85 PathProgramCache]: Analyzing trace with hash 31346160, now seen corresponding path program 1 times [2025-01-10 06:48:00,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:00,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737166119] [2025-01-10 06:48:00,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:00,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:01,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:01,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:01,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:01,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 06:48:01,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1626824692] [2025-01-10 06:48:01,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:01,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:01,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:01,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:01,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-10 06:48:01,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:01,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:01,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:01,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:01,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 06:48:01,220 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:01,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:01,245 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:01,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:01,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737166119] [2025-01-10 06:48:01,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 06:48:01,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626824692] [2025-01-10 06:48:01,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626824692] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:01,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:01,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-10 06:48:01,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677529664] [2025-01-10 06:48:01,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:01,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:01,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:01,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:01,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:01,289 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 167 [2025-01-10 06:48:01,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:01,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:01,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 167 [2025-01-10 06:48:01,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:02,954 INFO L124 PetriNetUnfolderBase]: 7865/17395 cut-off events. [2025-01-10 06:48:02,954 INFO L125 PetriNetUnfolderBase]: For 252/252 co-relation queries the response was YES. [2025-01-10 06:48:02,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29188 conditions, 17395 events. 7865/17395 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159359 event pairs, 6700 based on Foata normal form. 2172/16328 useless extension candidates. Maximal degree in co-relation 27828. Up to 11651 conditions per place. [2025-01-10 06:48:03,065 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2025-01-10 06:48:03,065 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 476 flow [2025-01-10 06:48:03,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:03,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:03,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2025-01-10 06:48:03,082 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6526946107784432 [2025-01-10 06:48:03,083 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 327 transitions. [2025-01-10 06:48:03,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 476 flow [2025-01-10 06:48:03,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 476 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-10 06:48:03,096 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2025-01-10 06:48:03,098 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2025-01-10 06:48:03,102 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2025-01-10 06:48:03,103 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2025-01-10 06:48:03,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:03,104 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:03,104 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2025-01-10 06:48:03,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-10 06:48:03,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-10 06:48:03,306 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:03,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:03,307 INFO L85 PathProgramCache]: Analyzing trace with hash 31346094, now seen corresponding path program 1 times [2025-01-10 06:48:03,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:03,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615831295] [2025-01-10 06:48:03,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:03,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:03,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:48:03,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:48:03,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:03,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:03,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:03,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615831295] [2025-01-10 06:48:03,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615831295] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:03,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:03,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:03,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639611473] [2025-01-10 06:48:03,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:03,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:48:03,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:03,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:48:03,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:48:03,481 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 167 [2025-01-10 06:48:03,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:03,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:03,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 167 [2025-01-10 06:48:03,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:04,780 INFO L124 PetriNetUnfolderBase]: 7865/17409 cut-off events. [2025-01-10 06:48:04,780 INFO L125 PetriNetUnfolderBase]: For 258/258 co-relation queries the response was YES. [2025-01-10 06:48:04,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29215 conditions, 17409 events. 7865/17409 cut-off events. For 258/258 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159385 event pairs, 6700 based on Foata normal form. 4/14174 useless extension candidates. Maximal degree in co-relation 29177. Up to 11656 conditions per place. [2025-01-10 06:48:04,874 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 72 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2025-01-10 06:48:04,874 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 482 flow [2025-01-10 06:48:04,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:48:04,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-10 06:48:04,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2025-01-10 06:48:04,880 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6067864271457086 [2025-01-10 06:48:04,880 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 304 transitions. [2025-01-10 06:48:04,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 482 flow [2025-01-10 06:48:04,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 480 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:04,885 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2025-01-10 06:48:04,885 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2025-01-10 06:48:04,886 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2025-01-10 06:48:04,886 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2025-01-10 06:48:04,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:04,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:04,886 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-01-10 06:48:04,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 06:48:04,886 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:04,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 58921949, now seen corresponding path program 1 times [2025-01-10 06:48:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:04,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435127671] [2025-01-10 06:48:04,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:04,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-01-10 06:48:04,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-01-10 06:48:04,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:04,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:05,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:05,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435127671] [2025-01-10 06:48:05,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435127671] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:05,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:05,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:05,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794344110] [2025-01-10 06:48:05,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:05,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:05,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:05,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:05,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:05,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2025-01-10 06:48:05,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:05,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:05,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2025-01-10 06:48:05,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:06,363 INFO L124 PetriNetUnfolderBase]: 7865/17405 cut-off events. [2025-01-10 06:48:06,363 INFO L125 PetriNetUnfolderBase]: For 266/266 co-relation queries the response was YES. [2025-01-10 06:48:06,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29227 conditions, 17405 events. 7865/17405 cut-off events. For 266/266 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159441 event pairs, 6700 based on Foata normal form. 4/14174 useless extension candidates. Maximal degree in co-relation 29164. Up to 11660 conditions per place. [2025-01-10 06:48:06,477 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 73 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2025-01-10 06:48:06,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 498 flow [2025-01-10 06:48:06,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:06,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:06,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 373 transitions. [2025-01-10 06:48:06,479 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5583832335329342 [2025-01-10 06:48:06,480 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 373 transitions. [2025-01-10 06:48:06,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 498 flow [2025-01-10 06:48:06,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 496 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-01-10 06:48:06,483 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2025-01-10 06:48:06,483 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2025-01-10 06:48:06,484 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2025-01-10 06:48:06,484 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2025-01-10 06:48:06,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:06,484 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:06,484 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:06,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:48:06,484 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:06,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1296811017, now seen corresponding path program 1 times [2025-01-10 06:48:06,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:06,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027119541] [2025-01-10 06:48:06,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:06,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:06,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:06,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:06,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:06,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:06,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:06,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027119541] [2025-01-10 06:48:06,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027119541] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:06,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392975922] [2025-01-10 06:48:06,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:06,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:06,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:06,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:06,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-10 06:48:06,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-10 06:48:06,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-10 06:48:06,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:06,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:06,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-10 06:48:06,781 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:06,818 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:06,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392975922] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:06,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:06,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2025-01-10 06:48:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717442602] [2025-01-10 06:48:06,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:06,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 06:48:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:06,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 06:48:06,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 06:48:06,875 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2025-01-10 06:48:06,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 10 states, 10 states have (on average 74.5) internal successors, (745), 10 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:06,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:06,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2025-01-10 06:48:06,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:08,500 INFO L124 PetriNetUnfolderBase]: 7865/17421 cut-off events. [2025-01-10 06:48:08,500 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2025-01-10 06:48:08,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29285 conditions, 17421 events. 7865/17421 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159513 event pairs, 6700 based on Foata normal form. 6/14192 useless extension candidates. Maximal degree in co-relation 29183. Up to 11650 conditions per place. [2025-01-10 06:48:08,587 INFO L140 encePairwiseOnDemand]: 160/167 looper letters, 76 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2025-01-10 06:48:08,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 158 transitions, 560 flow [2025-01-10 06:48:08,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 06:48:08,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2025-01-10 06:48:08,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 744 transitions. [2025-01-10 06:48:08,589 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49500998003992014 [2025-01-10 06:48:08,589 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 9 states and 744 transitions. [2025-01-10 06:48:08,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 158 transitions, 560 flow [2025-01-10 06:48:08,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 158 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:08,593 INFO L231 Difference]: Finished difference. Result has 159 places, 154 transitions, 410 flow [2025-01-10 06:48:08,593 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=410, PETRI_PLACES=159, PETRI_TRANSITIONS=154} [2025-01-10 06:48:08,594 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2025-01-10 06:48:08,594 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 154 transitions, 410 flow [2025-01-10 06:48:08,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.5) internal successors, (745), 10 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:08,595 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:08,595 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:08,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-10 06:48:08,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:08,799 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:08,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:08,800 INFO L85 PathProgramCache]: Analyzing trace with hash -694774810, now seen corresponding path program 1 times [2025-01-10 06:48:08,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:08,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814423326] [2025-01-10 06:48:08,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:08,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:08,826 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:08,841 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:08,841 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:08,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:09,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:09,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814423326] [2025-01-10 06:48:09,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814423326] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:09,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288880539] [2025-01-10 06:48:09,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:09,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:09,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:09,116 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:09,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-10 06:48:09,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-10 06:48:09,248 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-10 06:48:09,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:09,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:09,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-10 06:48:09,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:09,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:09,279 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:48:09,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288880539] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:09,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:48:09,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2025-01-10 06:48:09,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520849364] [2025-01-10 06:48:09,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:09,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 06:48:09,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:09,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 06:48:09,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-10 06:48:09,296 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2025-01-10 06:48:09,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 154 transitions, 410 flow. Second operand has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:09,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:09,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2025-01-10 06:48:09,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:10,648 INFO L124 PetriNetUnfolderBase]: 7865/17417 cut-off events. [2025-01-10 06:48:10,649 INFO L125 PetriNetUnfolderBase]: For 346/346 co-relation queries the response was YES. [2025-01-10 06:48:10,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29302 conditions, 17417 events. 7865/17417 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159472 event pairs, 6700 based on Foata normal form. 4/14186 useless extension candidates. Maximal degree in co-relation 29200. Up to 11648 conditions per place. [2025-01-10 06:48:10,712 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 69 selfloop transitions, 8 changer transitions 0/152 dead transitions. [2025-01-10 06:48:10,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 152 transitions, 550 flow [2025-01-10 06:48:10,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:48:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-10 06:48:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 519 transitions. [2025-01-10 06:48:10,714 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5179640718562875 [2025-01-10 06:48:10,714 INFO L175 Difference]: Start difference. First operand has 159 places, 154 transitions, 410 flow. Second operand 6 states and 519 transitions. [2025-01-10 06:48:10,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 152 transitions, 550 flow [2025-01-10 06:48:10,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 152 transitions, 542 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:10,718 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 404 flow [2025-01-10 06:48:10,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=388, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=404, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2025-01-10 06:48:10,719 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2025-01-10 06:48:10,719 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 404 flow [2025-01-10 06:48:10,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:10,719 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:10,719 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2025-01-10 06:48:10,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 06:48:10,919 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:10,920 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:10,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:10,920 INFO L85 PathProgramCache]: Analyzing trace with hash -288914898, now seen corresponding path program 1 times [2025-01-10 06:48:10,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:10,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048695016] [2025-01-10 06:48:10,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:10,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:10,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-01-10 06:48:10,975 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-01-10 06:48:10,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:10,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:11,047 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-10 06:48:11,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:11,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048695016] [2025-01-10 06:48:11,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048695016] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:11,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:11,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-10 06:48:11,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211012427] [2025-01-10 06:48:11,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:11,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:11,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:11,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:11,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:11,063 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 167 [2025-01-10 06:48:11,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:11,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:11,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 167 [2025-01-10 06:48:11,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:12,369 INFO L124 PetriNetUnfolderBase]: 7865/17415 cut-off events. [2025-01-10 06:48:12,369 INFO L125 PetriNetUnfolderBase]: For 356/356 co-relation queries the response was YES. [2025-01-10 06:48:12,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29307 conditions, 17415 events. 7865/17415 cut-off events. For 356/356 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159399 event pairs, 6700 based on Foata normal form. 2/14182 useless extension candidates. Maximal degree in co-relation 29206. Up to 11654 conditions per place. [2025-01-10 06:48:12,487 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 68 selfloop transitions, 9 changer transitions 0/152 dead transitions. [2025-01-10 06:48:12,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 152 transitions, 556 flow [2025-01-10 06:48:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 372 transitions. [2025-01-10 06:48:12,489 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5568862275449101 [2025-01-10 06:48:12,489 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 404 flow. Second operand 4 states and 372 transitions. [2025-01-10 06:48:12,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 152 transitions, 556 flow [2025-01-10 06:48:12,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 152 transitions, 540 flow, removed 2 selfloop flow, removed 6 redundant places. [2025-01-10 06:48:12,493 INFO L231 Difference]: Finished difference. Result has 156 places, 152 transitions, 412 flow [2025-01-10 06:48:12,493 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=412, PETRI_PLACES=156, PETRI_TRANSITIONS=152} [2025-01-10 06:48:12,493 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 16 predicate places. [2025-01-10 06:48:12,494 INFO L471 AbstractCegarLoop]: Abstraction has has 156 places, 152 transitions, 412 flow [2025-01-10 06:48:12,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:12,494 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:12,494 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2025-01-10 06:48:12,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:48:12,494 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:12,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:12,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1525693015, now seen corresponding path program 2 times [2025-01-10 06:48:12,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:12,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529336368] [2025-01-10 06:48:12,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:12,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:12,541 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 19 statements into 2 equivalence classes. [2025-01-10 06:48:12,546 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 19 statements. [2025-01-10 06:48:12,546 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:48:12,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-10 06:48:12,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:12,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529336368] [2025-01-10 06:48:12,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529336368] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:48:12,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:48:12,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:48:12,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133729815] [2025-01-10 06:48:12,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:48:12,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:48:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:12,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:48:12,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-10 06:48:12,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2025-01-10 06:48:12,595 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 152 transitions, 412 flow. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:12,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:12,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2025-01-10 06:48:12,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:14,062 INFO L124 PetriNetUnfolderBase]: 7865/17413 cut-off events. [2025-01-10 06:48:14,063 INFO L125 PetriNetUnfolderBase]: For 384/384 co-relation queries the response was YES. [2025-01-10 06:48:14,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29314 conditions, 17413 events. 7865/17413 cut-off events. For 384/384 co-relation queries the response was YES. Maximal size of possible extension queue 515. Compared 159378 event pairs, 6700 based on Foata normal form. 2/14182 useless extension candidates. Maximal degree in co-relation 29188. Up to 11659 conditions per place. [2025-01-10 06:48:14,128 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 83 selfloop transitions, 3 changer transitions 0/160 dead transitions. [2025-01-10 06:48:14,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 160 transitions, 656 flow [2025-01-10 06:48:14,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:48:14,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-01-10 06:48:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 376 transitions. [2025-01-10 06:48:14,129 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.562874251497006 [2025-01-10 06:48:14,130 INFO L175 Difference]: Start difference. First operand has 156 places, 152 transitions, 412 flow. Second operand 4 states and 376 transitions. [2025-01-10 06:48:14,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 160 transitions, 656 flow [2025-01-10 06:48:14,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 160 transitions, 632 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:14,132 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2025-01-10 06:48:14,133 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=423, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2025-01-10 06:48:14,133 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2025-01-10 06:48:14,133 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2025-01-10 06:48:14,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:14,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:14,134 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:48:14,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:48:14,134 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:14,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash -883646958, now seen corresponding path program 1 times [2025-01-10 06:48:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738565554] [2025-01-10 06:48:14,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:14,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:14,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:48:14,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:48:14,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:14,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-10 06:48:14,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:14,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738565554] [2025-01-10 06:48:14,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738565554] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:14,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173099556] [2025-01-10 06:48:14,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:14,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:14,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:14,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:14,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-10 06:48:14,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-01-10 06:48:14,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-01-10 06:48:14,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:14,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:14,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:48:14,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:14,538 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:14,538 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:48:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173099556] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:14,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:14,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2025-01-10 06:48:14,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936366596] [2025-01-10 06:48:14,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:14,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-01-10 06:48:14,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:14,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-01-10 06:48:14,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2025-01-10 06:48:14,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2025-01-10 06:48:14,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 423 flow. Second operand has 19 states, 19 states have (on average 72.84210526315789) internal successors, (1384), 19 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:14,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:14,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2025-01-10 06:48:14,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:16,912 INFO L124 PetriNetUnfolderBase]: 7870/17515 cut-off events. [2025-01-10 06:48:16,913 INFO L125 PetriNetUnfolderBase]: For 631/631 co-relation queries the response was YES. [2025-01-10 06:48:16,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29673 conditions, 17515 events. 7870/17515 cut-off events. For 631/631 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 159923 event pairs, 6700 based on Foata normal form. 13/14295 useless extension candidates. Maximal degree in co-relation 29519. Up to 11649 conditions per place. [2025-01-10 06:48:17,049 INFO L140 encePairwiseOnDemand]: 158/167 looper letters, 112 selfloop transitions, 55 changer transitions 0/238 dead transitions. [2025-01-10 06:48:17,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 238 transitions, 1360 flow [2025-01-10 06:48:17,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2025-01-10 06:48:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2025-01-10 06:48:17,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3304 transitions. [2025-01-10 06:48:17,055 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4496461622210125 [2025-01-10 06:48:17,055 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 44 states and 3304 transitions. [2025-01-10 06:48:17,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 238 transitions, 1360 flow [2025-01-10 06:48:17,059 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 238 transitions, 1356 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-01-10 06:48:17,061 INFO L231 Difference]: Finished difference. Result has 213 places, 201 transitions, 978 flow [2025-01-10 06:48:17,061 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=978, PETRI_PLACES=213, PETRI_TRANSITIONS=201} [2025-01-10 06:48:17,062 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 73 predicate places. [2025-01-10 06:48:17,062 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 201 transitions, 978 flow [2025-01-10 06:48:17,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 72.84210526315789) internal successors, (1384), 19 states have internal predecessors, (1384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:17,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:17,063 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:17,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-10 06:48:17,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-01-10 06:48:17,264 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:17,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:17,265 INFO L85 PathProgramCache]: Analyzing trace with hash -806415578, now seen corresponding path program 1 times [2025-01-10 06:48:17,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:17,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697986570] [2025-01-10 06:48:17,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:17,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:17,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:48:17,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:17,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:17,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:17,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697986570] [2025-01-10 06:48:17,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697986570] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:17,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614928174] [2025-01-10 06:48:17,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:48:17,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:17,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:17,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:17,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-10 06:48:18,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:48:18,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:48:18,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:48:18,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:18,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 06:48:18,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:18,180 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:18,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:18,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614928174] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:18,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:18,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2025-01-10 06:48:18,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810557860] [2025-01-10 06:48:18,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:18,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2025-01-10 06:48:18,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:18,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2025-01-10 06:48:18,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2025-01-10 06:48:18,474 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2025-01-10 06:48:18,477 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 201 transitions, 978 flow. Second operand has 34 states, 34 states have (on average 74.67647058823529) internal successors, (2539), 34 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:18,477 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:18,477 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2025-01-10 06:48:18,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:22,190 INFO L124 PetriNetUnfolderBase]: 7866/17667 cut-off events. [2025-01-10 06:48:22,190 INFO L125 PetriNetUnfolderBase]: For 2934/2934 co-relation queries the response was YES. [2025-01-10 06:48:22,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30564 conditions, 17667 events. 7866/17667 cut-off events. For 2934/2934 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 160608 event pairs, 6700 based on Foata normal form. 24/14458 useless extension candidates. Maximal degree in co-relation 30189. Up to 11653 conditions per place. [2025-01-10 06:48:22,262 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 145 selfloop transitions, 93 changer transitions 0/311 dead transitions. [2025-01-10 06:48:22,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 311 transitions, 2686 flow [2025-01-10 06:48:22,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-01-10 06:48:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2025-01-10 06:48:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2412 transitions. [2025-01-10 06:48:22,267 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46590689588564804 [2025-01-10 06:48:22,267 INFO L175 Difference]: Start difference. First operand has 213 places, 201 transitions, 978 flow. Second operand 31 states and 2412 transitions. [2025-01-10 06:48:22,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 311 transitions, 2686 flow [2025-01-10 06:48:22,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 311 transitions, 2578 flow, removed 43 selfloop flow, removed 5 redundant places. [2025-01-10 06:48:22,280 INFO L231 Difference]: Finished difference. Result has 247 places, 252 transitions, 1715 flow [2025-01-10 06:48:22,281 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1715, PETRI_PLACES=247, PETRI_TRANSITIONS=252} [2025-01-10 06:48:22,283 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 107 predicate places. [2025-01-10 06:48:22,283 INFO L471 AbstractCegarLoop]: Abstraction has has 247 places, 252 transitions, 1715 flow [2025-01-10 06:48:22,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 74.67647058823529) internal successors, (2539), 34 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:22,284 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:22,284 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:22,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 06:48:22,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:22,485 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:22,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:22,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1809988006, now seen corresponding path program 2 times [2025-01-10 06:48:22,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:22,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218341386] [2025-01-10 06:48:22,485 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:22,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:22,615 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-01-10 06:48:22,676 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 06:48:22,676 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:22,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:24,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:48:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218341386] [2025-01-10 06:48:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218341386] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:48:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017268169] [2025-01-10 06:48:24,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:48:24,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:48:24,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:48:24,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:48:24,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-10 06:48:24,373 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 88 statements into 2 equivalence classes. [2025-01-10 06:48:24,533 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 88 of 88 statements. [2025-01-10 06:48:24,533 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-10 06:48:24,533 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:48:24,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-10 06:48:24,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:48:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:24,633 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:48:25,304 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:48:25,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017268169] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:48:25,304 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:48:25,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2025-01-10 06:48:25,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163832584] [2025-01-10 06:48:25,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:48:25,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2025-01-10 06:48:25,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:48:25,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2025-01-10 06:48:25,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2025-01-10 06:48:25,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2025-01-10 06:48:25,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 252 transitions, 1715 flow. Second operand has 63 states, 63 states have (on average 74.61904761904762) internal successors, (4701), 63 states have internal predecessors, (4701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:25,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:48:25,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2025-01-10 06:48:25,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:48:32,231 INFO L124 PetriNetUnfolderBase]: 7866/17952 cut-off events. [2025-01-10 06:48:32,232 INFO L125 PetriNetUnfolderBase]: For 9917/9917 co-relation queries the response was YES. [2025-01-10 06:48:32,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32208 conditions, 17952 events. 7866/17952 cut-off events. For 9917/9917 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 160708 event pairs, 6700 based on Foata normal form. 45/14764 useless extension candidates. Maximal degree in co-relation 31412. Up to 11653 conditions per place. [2025-01-10 06:48:32,390 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 235 selfloop transitions, 183 changer transitions 0/491 dead transitions. [2025-01-10 06:48:32,390 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 491 transitions, 5625 flow [2025-01-10 06:48:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-01-10 06:48:32,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2025-01-10 06:48:32,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4684 transitions. [2025-01-10 06:48:32,396 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45980170805929127 [2025-01-10 06:48:32,397 INFO L175 Difference]: Start difference. First operand has 247 places, 252 transitions, 1715 flow. Second operand 61 states and 4684 transitions. [2025-01-10 06:48:32,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 491 transitions, 5625 flow [2025-01-10 06:48:32,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 491 transitions, 5553 flow, removed 0 selfloop flow, removed 12 redundant places. [2025-01-10 06:48:32,424 INFO L231 Difference]: Finished difference. Result has 311 places, 345 transitions, 3385 flow [2025-01-10 06:48:32,425 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1643, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3385, PETRI_PLACES=311, PETRI_TRANSITIONS=345} [2025-01-10 06:48:32,425 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 171 predicate places. [2025-01-10 06:48:32,426 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 345 transitions, 3385 flow [2025-01-10 06:48:32,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 74.61904761904762) internal successors, (4701), 63 states have internal predecessors, (4701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:48:32,427 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:48:32,428 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-01-10 06:48:32,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-10 06:48:32,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-10 06:48:32,628 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:48:32,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:48:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1642130959, now seen corresponding path program 3 times [2025-01-10 06:48:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:48:32,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396984866] [2025-01-10 06:48:32,629 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:48:32,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:48:33,055 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-01-10 06:49:22,729 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) and asserted 163 of 163 statements. [2025-01-10 06:49:22,729 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2025-01-10 06:49:22,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 06:49:22,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307243715] [2025-01-10 06:49:22,752 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-10 06:49:22,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:49:22,755 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 06:49:22,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-10 06:49:23,228 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 163 statements into 32 equivalence classes. [2025-01-10 06:49:23,265 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 13 of 163 statements. [2025-01-10 06:49:23,265 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-01-10 06:49:23,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:49:23,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-10 06:49:23,272 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:49:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2025-01-10 06:49:23,441 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:49:23,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:49:23,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396984866] [2025-01-10 06:49:23,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 06:49:23,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307243715] [2025-01-10 06:49:23,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1307243715] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:49:23,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:49:23,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 06:49:23,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526902356] [2025-01-10 06:49:23,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:49:23,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 06:49:23,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:49:23,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 06:49:23,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2025-01-10 06:49:23,472 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2025-01-10 06:49:23,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 345 transitions, 3385 flow. Second operand has 9 states, 9 states have (on average 72.44444444444444) internal successors, (652), 9 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:23,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-10 06:49:23,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2025-01-10 06:49:23,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-10 06:49:27,056 INFO L124 PetriNetUnfolderBase]: 7866/17892 cut-off events. [2025-01-10 06:49:27,056 INFO L125 PetriNetUnfolderBase]: For 7708/7708 co-relation queries the response was YES. [2025-01-10 06:49:27,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32281 conditions, 17892 events. 7866/17892 cut-off events. For 7708/7708 co-relation queries the response was YES. Maximal size of possible extension queue 516. Compared 160299 event pairs, 6700 based on Foata normal form. 60/14719 useless extension candidates. Maximal degree in co-relation 31374. Up to 11643 conditions per place. [2025-01-10 06:49:27,394 INFO L140 encePairwiseOnDemand]: 157/167 looper letters, 138 selfloop transitions, 137 changer transitions 0/346 dead transitions. [2025-01-10 06:49:27,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 346 transitions, 3949 flow [2025-01-10 06:49:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 06:49:27,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-01-10 06:49:27,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 864 transitions. [2025-01-10 06:49:27,395 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4703320631464344 [2025-01-10 06:49:27,395 INFO L175 Difference]: Start difference. First operand has 311 places, 345 transitions, 3385 flow. Second operand 11 states and 864 transitions. [2025-01-10 06:49:27,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 346 transitions, 3949 flow [2025-01-10 06:49:27,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 346 transitions, 3751 flow, removed 15 selfloop flow, removed 28 redundant places. [2025-01-10 06:49:27,428 INFO L231 Difference]: Finished difference. Result has 292 places, 345 transitions, 3544 flow [2025-01-10 06:49:27,429 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=3177, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=343, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3544, PETRI_PLACES=292, PETRI_TRANSITIONS=345} [2025-01-10 06:49:27,430 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 152 predicate places. [2025-01-10 06:49:27,430 INFO L471 AbstractCegarLoop]: Abstraction has has 292 places, 345 transitions, 3544 flow [2025-01-10 06:49:27,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 72.44444444444444) internal successors, (652), 9 states have internal predecessors, (652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-10 06:49:27,430 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-10 06:49:27,430 INFO L206 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2025-01-10 06:49:27,439 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 06:49:27,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:49:27,631 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2025-01-10 06:49:27,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:49:27,635 INFO L85 PathProgramCache]: Analyzing trace with hash -633546785, now seen corresponding path program 1 times [2025-01-10 06:49:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:49:27,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950650929] [2025-01-10 06:49:27,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:49:27,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:49:27,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes.