./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/uname-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/busybox-1.22.0/uname-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash ce381cf603602873aa7825ca610797c82dd7f7e7d56006b032fdfc5a2bfa2e82 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-10 06:05:53,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 06:05:53,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-01-10 06:05:53,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 06:05:53,954 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 06:05:53,968 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 06:05:53,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 06:05:53,968 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 06:05:53,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 06:05:53,969 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 06:05:53,969 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 06:05:53,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 06:05:53,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 06:05:53,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 06:05:53,969 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 06:05:53,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 06:05:53,970 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 06:05:53,971 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:05:53,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 06:05:53,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:05:53,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 06:05:53,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 06:05:53,972 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce381cf603602873aa7825ca610797c82dd7f7e7d56006b032fdfc5a2bfa2e82 [2025-01-10 06:05:54,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 06:05:54,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 06:05:54,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 06:05:54,172 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 06:05:54,173 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 06:05:54,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-01-10 06:05:55,445 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce049bbae/324034a676fb45bc9e6103e391173350/FLAG8c0191252 [2025-01-10 06:05:55,930 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 06:05:55,931 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/uname-2.i [2025-01-10 06:05:55,962 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce049bbae/324034a676fb45bc9e6103e391173350/FLAG8c0191252 [2025-01-10 06:05:56,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ce049bbae/324034a676fb45bc9e6103e391173350 [2025-01-10 06:05:56,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 06:05:56,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 06:05:56,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 06:05:56,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 06:05:56,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 06:05:56,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:05:56" (1/1) ... [2025-01-10 06:05:56,055 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13dfa00a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:56, skipping insertion in model container [2025-01-10 06:05:56,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:05:56" (1/1) ... [2025-01-10 06:05:56,110 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 06:05:57,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:05:57,123 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 06:05:57,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 06:05:57,430 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-01-10 06:05:57,438 INFO L204 MainTranslator]: Completed translation [2025-01-10 06:05:57,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57 WrapperNode [2025-01-10 06:05:57,440 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 06:05:57,441 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 06:05:57,441 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 06:05:57,441 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 06:05:57,447 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,498 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,604 INFO L138 Inliner]: procedures = 570, calls = 888, calls flagged for inlining = 24, calls inlined = 22, statements flattened = 2089 [2025-01-10 06:05:57,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 06:05:57,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 06:05:57,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 06:05:57,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 06:05:57,616 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,713 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-01-10 06:05:57,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,768 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,785 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,792 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 06:05:57,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 06:05:57,807 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 06:05:57,807 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 06:05:57,808 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (1/1) ... [2025-01-10 06:05:57,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 06:05:57,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:05:57,843 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 06:05:57,856 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 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-01-10 06:05:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 06:05:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-01-10 06:05:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-01-10 06:05:57,871 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-01-10 06:05:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-01-10 06:05:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-10 06:05:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-01-10 06:05:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-01-10 06:05:57,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-01-10 06:05:57,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-10 06:05:58,249 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 06:05:58,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 06:06:08,068 INFO L? ?]: Removed 562 outVars from TransFormulas that were not future-live. [2025-01-10 06:06:08,068 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 06:06:08,081 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 06:06:08,081 INFO L312 CfgBuilder]: Removed 26 assume(true) statements. [2025-01-10 06:06:08,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:06:08 BoogieIcfgContainer [2025-01-10 06:06:08,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 06:06:08,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 06:06:08,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 06:06:08,086 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 06:06:08,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:05:56" (1/3) ... [2025-01-10 06:06:08,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7e0f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:06:08, skipping insertion in model container [2025-01-10 06:06:08,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:05:57" (2/3) ... [2025-01-10 06:06:08,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7e0f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:06:08, skipping insertion in model container [2025-01-10 06:06:08,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:06:08" (3/3) ... [2025-01-10 06:06:08,088 INFO L128 eAbstractionObserver]: Analyzing ICFG uname-2.i [2025-01-10 06:06:08,098 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 06:06:08,100 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uname-2.i that has 8 procedures, 516 locations, 1 initial locations, 37 loop locations, and 73 error locations. [2025-01-10 06:06:08,165 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 06:06:08,173 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;@3d1d7d74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 06:06:08,173 INFO L334 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2025-01-10 06:06:08,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 516 states, 413 states have (on average 1.6731234866828086) internal successors, (691), 489 states have internal predecessors, (691), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2025-01-10 06:06:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-10 06:06:08,180 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:08,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-10 06:06:08,181 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:08,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:08,186 INFO L85 PathProgramCache]: Analyzing trace with hash 8529284, now seen corresponding path program 1 times [2025-01-10 06:06:08,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:08,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566290954] [2025-01-10 06:06:08,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:08,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:06:14,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-10 06:06:14,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-10 06:06:14,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:14,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:15,072 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 06:06:15,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:06:15,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566290954] [2025-01-10 06:06:15,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566290954] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:06:15,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:06:15,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:06:15,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628272368] [2025-01-10 06:06:15,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:06:15,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:06:15,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:06:15,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:06:15,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:06:15,096 INFO L87 Difference]: Start difference. First operand has 516 states, 413 states have (on average 1.6731234866828086) internal successors, (691), 489 states have internal predecessors, (691), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 06:06:15,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:06:15,328 INFO L93 Difference]: Finished difference Result 938 states and 1363 transitions. [2025-01-10 06:06:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:06:15,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 4 [2025-01-10 06:06:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:06:15,345 INFO L225 Difference]: With dead ends: 938 [2025-01-10 06:06:15,346 INFO L226 Difference]: Without dead ends: 424 [2025-01-10 06:06:15,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:06:15,352 INFO L435 NwaCegarLoop]: 584 mSDtfsCounter, 1 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 06:06:15,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1164 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 06:06:15,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2025-01-10 06:06:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 424. [2025-01-10 06:06:15,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 349 states have (on average 1.5931232091690544) internal successors, (556), 405 states have internal predecessors, (556), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:06:15,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 587 transitions. [2025-01-10 06:06:15,400 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 587 transitions. Word has length 4 [2025-01-10 06:06:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:06:15,401 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 587 transitions. [2025-01-10 06:06:15,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 06:06:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 587 transitions. [2025-01-10 06:06:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-01-10 06:06:15,401 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:15,402 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-01-10 06:06:15,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 06:06:15,402 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:15,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:15,403 INFO L85 PathProgramCache]: Analyzing trace with hash 693114045, now seen corresponding path program 1 times [2025-01-10 06:06:15,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:15,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004049307] [2025-01-10 06:06:15,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:15,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:06:20,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:06:20,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:06:20,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:20,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:21,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:06:21,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:06:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004049307] [2025-01-10 06:06:21,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004049307] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:06:21,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808647637] [2025-01-10 06:06:21,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:21,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:06:21,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:06:21,309 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 06:06:21,313 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 06:06:26,812 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-01-10 06:06:27,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-01-10 06:06:27,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:27,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:27,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 2830 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 06:06:27,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:06:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 06:06:27,258 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:06:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808647637] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:06:27,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:06:27,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-01-10 06:06:27,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907015775] [2025-01-10 06:06:27,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:06:27,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-10 06:06:27,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:06:27,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-10 06:06:27,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:06:27,260 INFO L87 Difference]: Start difference. First operand 424 states and 587 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 06:06:27,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:06:27,394 INFO L93 Difference]: Finished difference Result 424 states and 587 transitions. [2025-01-10 06:06:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-10 06:06:27,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2025-01-10 06:06:27,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:06:27,396 INFO L225 Difference]: With dead ends: 424 [2025-01-10 06:06:27,396 INFO L226 Difference]: Without dead ends: 423 [2025-01-10 06:06:27,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:06:27,397 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 1 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1732 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 06:06:27,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1732 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 06:06:27,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2025-01-10 06:06:27,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2025-01-10 06:06:27,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 349 states have (on average 1.5902578796561604) internal successors, (555), 404 states have internal predecessors, (555), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:06:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 586 transitions. [2025-01-10 06:06:27,410 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 586 transitions. Word has length 7 [2025-01-10 06:06:27,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:06:27,410 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 586 transitions. [2025-01-10 06:06:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 06:06:27,410 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 586 transitions. [2025-01-10 06:06:27,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 06:06:27,411 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:27,411 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-01-10 06:06:27,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 06:06:27,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:06:27,615 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:27,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:27,615 INFO L85 PathProgramCache]: Analyzing trace with hash 11699202, now seen corresponding path program 1 times [2025-01-10 06:06:27,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:27,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813354399] [2025-01-10 06:06:27,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:27,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:06:32,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 06:06:32,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 06:06:32,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:32,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:06:32,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:06:32,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813354399] [2025-01-10 06:06:32,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813354399] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:06:32,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:06:32,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:06:32,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755423001] [2025-01-10 06:06:32,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:06:32,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:06:32,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:06:32,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:06:32,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:06:32,734 INFO L87 Difference]: Start difference. First operand 423 states and 586 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:06:32,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:06:32,789 INFO L93 Difference]: Finished difference Result 423 states and 586 transitions. [2025-01-10 06:06:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:06:32,794 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2025-01-10 06:06:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:06:32,796 INFO L225 Difference]: With dead ends: 423 [2025-01-10 06:06:32,796 INFO L226 Difference]: Without dead ends: 422 [2025-01-10 06:06:32,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:06:32,797 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 0 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 06:06:32,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1156 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 06:06:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2025-01-10 06:06:32,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 420. [2025-01-10 06:06:32,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 347 states have (on average 1.5907780979827089) internal successors, (552), 401 states have internal predecessors, (552), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:06:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 583 transitions. [2025-01-10 06:06:32,827 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 583 transitions. Word has length 8 [2025-01-10 06:06:32,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:06:32,827 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 583 transitions. [2025-01-10 06:06:32,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 06:06:32,827 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 583 transitions. [2025-01-10 06:06:32,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-10 06:06:32,828 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:32,828 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:06:32,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 06:06:32,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:32,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:32,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1040651574, now seen corresponding path program 1 times [2025-01-10 06:06:32,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:32,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12404815] [2025-01-10 06:06:32,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:32,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:06:37,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:06:37,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:06:37,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:37,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:38,125 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 06:06:38,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:06:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12404815] [2025-01-10 06:06:38,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12404815] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:06:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562233606] [2025-01-10 06:06:38,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:38,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:06:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:06:38,128 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 06:06:38,134 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 06:06:43,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-10 06:06:43,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-10 06:06:43,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:43,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:43,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 2847 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-10 06:06:43,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:06:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-10 06:06:43,752 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 06:06:43,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562233606] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:06:43,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 06:06:43,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-01-10 06:06:43,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960723021] [2025-01-10 06:06:43,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:06:43,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:06:43,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:06:43,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:06:43,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:06:43,753 INFO L87 Difference]: Start difference. First operand 420 states and 583 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:06:43,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:06:43,847 INFO L93 Difference]: Finished difference Result 420 states and 583 transitions. [2025-01-10 06:06:43,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:06:43,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2025-01-10 06:06:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:06:43,850 INFO L225 Difference]: With dead ends: 420 [2025-01-10 06:06:43,850 INFO L226 Difference]: Without dead ends: 418 [2025-01-10 06:06:43,850 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:06:43,851 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 514 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 06:06:43,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 621 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 06:06:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2025-01-10 06:06:43,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2025-01-10 06:06:43,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 347 states have (on average 1.585014409221902) internal successors, (550), 399 states have internal predecessors, (550), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:06:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 581 transitions. [2025-01-10 06:06:43,860 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 581 transitions. Word has length 12 [2025-01-10 06:06:43,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:06:43,860 INFO L471 AbstractCegarLoop]: Abstraction has 418 states and 581 transitions. [2025-01-10 06:06:43,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:06:43,861 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 581 transitions. [2025-01-10 06:06:43,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-01-10 06:06:43,861 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:43,864 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:06:43,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-10 06:06:44,065 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 06:06:44,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:44,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:44,066 INFO L85 PathProgramCache]: Analyzing trace with hash -2099539280, now seen corresponding path program 1 times [2025-01-10 06:06:44,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:44,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290631286] [2025-01-10 06:06:44,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:06:48,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:06:48,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:06:48,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:48,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:49,176 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 06:06:49,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:06:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290631286] [2025-01-10 06:06:49,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290631286] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:06:49,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167114511] [2025-01-10 06:06:49,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:06:49,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:06:49,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:06:49,180 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 06:06:49,183 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 06:06:54,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-01-10 06:06:54,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-01-10 06:06:54,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:06:54,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:06:54,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 2848 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-10 06:06:54,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:06:54,951 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 06:06:54,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:06:55,137 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 06:06:55,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167114511] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:06:55,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:06:55,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-01-10 06:06:55,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897302094] [2025-01-10 06:06:55,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:06:55,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 06:06:55,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:06:55,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 06:06:55,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-10 06:06:55,138 INFO L87 Difference]: Start difference. First operand 418 states and 581 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 06:06:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:06:55,265 INFO L93 Difference]: Finished difference Result 839 states and 1167 transitions. [2025-01-10 06:06:55,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 06:06:55,265 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2025-01-10 06:06:55,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:06:55,267 INFO L225 Difference]: With dead ends: 839 [2025-01-10 06:06:55,267 INFO L226 Difference]: Without dead ends: 427 [2025-01-10 06:06:55,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-10 06:06:55,268 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 4 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1727 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 06:06:55,268 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1727 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 06:06:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2025-01-10 06:06:55,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 427. [2025-01-10 06:06:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 356 states have (on average 1.5702247191011236) internal successors, (559), 408 states have internal predecessors, (559), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:06:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 590 transitions. [2025-01-10 06:06:55,276 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 590 transitions. Word has length 13 [2025-01-10 06:06:55,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:06:55,277 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 590 transitions. [2025-01-10 06:06:55,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-10 06:06:55,277 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 590 transitions. [2025-01-10 06:06:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-01-10 06:06:55,277 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:06:55,277 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:06:55,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-10 06:06:55,478 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 06:06:55,478 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:06:55,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:06:55,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1671353097, now seen corresponding path program 2 times [2025-01-10 06:06:55,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:06:55,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952741677] [2025-01-10 06:06:55,479 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-10 06:06:55,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:07:00,474 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 22 statements into 2 equivalence classes. [2025-01-10 06:07:00,576 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 22 statements. [2025-01-10 06:07:00,576 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-01-10 06:07:00,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:01,257 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:07:01,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:07:01,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952741677] [2025-01-10 06:07:01,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952741677] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:07:01,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:07:01,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 06:07:01,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762207900] [2025-01-10 06:07:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:07:01,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 06:07:01,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:07:01,258 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 06:07:01,258 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:07:01,258 INFO L87 Difference]: Start difference. First operand 427 states and 590 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:01,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:07:01,558 INFO L93 Difference]: Finished difference Result 427 states and 590 transitions. [2025-01-10 06:07:01,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 06:07:01,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2025-01-10 06:07:01,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:07:01,560 INFO L225 Difference]: With dead ends: 427 [2025-01-10 06:07:01,560 INFO L226 Difference]: Without dead ends: 425 [2025-01-10 06:07:01,561 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 06:07:01,561 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 513 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 06:07:01,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1748 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 06:07:01,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2025-01-10 06:07:01,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2025-01-10 06:07:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 356 states have (on average 1.5646067415730338) internal successors, (557), 406 states have internal predecessors, (557), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:07:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 588 transitions. [2025-01-10 06:07:01,571 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 588 transitions. Word has length 22 [2025-01-10 06:07:01,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:07:01,571 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 588 transitions. [2025-01-10 06:07:01,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 588 transitions. [2025-01-10 06:07:01,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-10 06:07:01,572 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:07:01,572 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:07:01,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-10 06:07:01,572 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:07:01,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:07:01,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1009873641, now seen corresponding path program 1 times [2025-01-10 06:07:01,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:07:01,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46811233] [2025-01-10 06:07:01,573 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:07:01,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:07:06,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-10 06:07:06,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-10 06:07:06,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:07:06,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:07:07,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:07:07,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46811233] [2025-01-10 06:07:07,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46811233] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:07:07,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:07:07,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:07:07,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920781379] [2025-01-10 06:07:07,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:07:07,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:07:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:07:07,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:07:07,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:07:07,127 INFO L87 Difference]: Start difference. First operand 425 states and 588 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:07,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:07:07,225 INFO L93 Difference]: Finished difference Result 833 states and 1160 transitions. [2025-01-10 06:07:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:07:07,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2025-01-10 06:07:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:07:07,227 INFO L225 Difference]: With dead ends: 833 [2025-01-10 06:07:07,227 INFO L226 Difference]: Without dead ends: 428 [2025-01-10 06:07:07,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:07:07,228 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 1 mSDsluCounter, 570 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 06:07:07,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1145 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 06:07:07,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2025-01-10 06:07:07,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2025-01-10 06:07:07,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 359 states have (on average 1.5598885793871866) internal successors, (560), 409 states have internal predecessors, (560), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:07:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 591 transitions. [2025-01-10 06:07:07,249 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 591 transitions. Word has length 27 [2025-01-10 06:07:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:07:07,249 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 591 transitions. [2025-01-10 06:07:07,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 591 transitions. [2025-01-10 06:07:07,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2025-01-10 06:07:07,250 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:07:07,250 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:07:07,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-10 06:07:07,251 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:07:07,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:07:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1240818910, now seen corresponding path program 1 times [2025-01-10 06:07:07,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:07:07,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070653715] [2025-01-10 06:07:07,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:07:07,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:07:12,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-01-10 06:07:12,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-01-10 06:07:12,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:07:12,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:07:12,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:07:12,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070653715] [2025-01-10 06:07:12,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070653715] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:07:12,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:07:12,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:07:12,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647568053] [2025-01-10 06:07:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:07:12,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:07:12,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:07:12,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:07:12,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:07:12,412 INFO L87 Difference]: Start difference. First operand 428 states and 591 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:07:12,607 INFO L93 Difference]: Finished difference Result 733 states and 1037 transitions. [2025-01-10 06:07:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-10 06:07:12,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2025-01-10 06:07:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:07:12,610 INFO L225 Difference]: With dead ends: 733 [2025-01-10 06:07:12,610 INFO L226 Difference]: Without dead ends: 731 [2025-01-10 06:07:12,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:07:12,611 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 418 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 06:07:12,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1132 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 06:07:12,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2025-01-10 06:07:12,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 432. [2025-01-10 06:07:12,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 363 states have (on average 1.556473829201102) internal successors, (565), 413 states have internal predecessors, (565), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:07:12,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 596 transitions. [2025-01-10 06:07:12,625 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 596 transitions. Word has length 28 [2025-01-10 06:07:12,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:07:12,625 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 596 transitions. [2025-01-10 06:07:12,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-10 06:07:12,625 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 596 transitions. [2025-01-10 06:07:12,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 06:07:12,626 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:07:12,626 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:07:12,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-10 06:07:12,626 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:07:12,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:07:12,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1100577153, now seen corresponding path program 1 times [2025-01-10 06:07:12,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:07:12,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976396952] [2025-01-10 06:07:12,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:07:12,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:07:17,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 06:07:17,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:07:17,538 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:07:17,538 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-10 06:07:17,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:07:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976396952] [2025-01-10 06:07:17,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976396952] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 06:07:17,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297014170] [2025-01-10 06:07:17,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:07:17,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 06:07:17,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 06:07:17,967 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 06:07:17,968 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 06:07:23,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 06:07:24,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 06:07:24,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:07:24,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:24,153 INFO L256 TraceCheckSpWp]: Trace formula consists of 3033 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-10 06:07:24,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 06:07:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:07:24,758 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 06:07:25,680 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-01-10 06:07:25,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297014170] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 06:07:25,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 06:07:25,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2025-01-10 06:07:25,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620729131] [2025-01-10 06:07:25,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 06:07:25,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 06:07:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:07:25,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 06:07:25,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-01-10 06:07:25,682 INFO L87 Difference]: Start difference. First operand 432 states and 596 transitions. Second operand has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 06:07:26,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 06:07:26,392 INFO L93 Difference]: Finished difference Result 866 states and 1200 transitions. [2025-01-10 06:07:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 06:07:26,392 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2025-01-10 06:07:26,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 06:07:26,394 INFO L225 Difference]: With dead ends: 866 [2025-01-10 06:07:26,394 INFO L226 Difference]: Without dead ends: 449 [2025-01-10 06:07:26,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-01-10 06:07:26,395 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 5 mSDsluCounter, 2835 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-10 06:07:26,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3404 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-10 06:07:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2025-01-10 06:07:26,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2025-01-10 06:07:26,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 381 states have (on average 1.5275590551181102) internal successors, (582), 430 states have internal predecessors, (582), 18 states have call successors, (18), 7 states have call predecessors, (18), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-10 06:07:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 613 transitions. [2025-01-10 06:07:26,414 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 613 transitions. Word has length 30 [2025-01-10 06:07:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 06:07:26,415 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 613 transitions. [2025-01-10 06:07:26,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 14 states have internal predecessors, (59), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-10 06:07:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 613 transitions. [2025-01-10 06:07:26,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-10 06:07:26,417 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 06:07:26,417 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 06:07:26,439 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 06:07:26,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-01-10 06:07:26,621 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 70 more)] === [2025-01-10 06:07:26,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 06:07:26,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1074108001, now seen corresponding path program 1 times [2025-01-10 06:07:26,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 06:07:26,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227465750] [2025-01-10 06:07:26,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 06:07:26,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 06:07:31,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 06:07:31,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 06:07:31,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 06:07:31,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 06:07:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2025-01-10 06:07:31,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 06:07:31,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227465750] [2025-01-10 06:07:31,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227465750] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 06:07:31,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 06:07:31,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 06:07:31,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147245798] [2025-01-10 06:07:31,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 06:07:31,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-10 06:07:31,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 06:07:31,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-10 06:07:31,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-10 06:07:31,786 INFO L87 Difference]: Start difference. First operand 449 states and 613 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)