./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/date-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc 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/date-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 80c7b6107f3935683fbc3b7d43483be251c1410268fc571567bcef3f2dae4b3e --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 17:57:55,781 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 17:57:55,838 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-02-06 17:57:55,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 17:57:55,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 17:57:55,864 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 17:57:55,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 17:57:55,864 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 17:57:55,865 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 17:57:55,865 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 17:57:55,866 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 17:57:55,866 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 17:57:55,866 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 17:57:55,866 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 17:57:55,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 17:57:55,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 17:57:55,868 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 17:57:55,868 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:57:55,869 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 17:57:55,869 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 17:57:55,870 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 17:57:55,870 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 17:57:55,870 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 -> 80c7b6107f3935683fbc3b7d43483be251c1410268fc571567bcef3f2dae4b3e [2025-02-06 17:57:56,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 17:57:56,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 17:57:56,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 17:57:56,117 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 17:57:56,117 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 17:57:56,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-02-06 17:57:57,363 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ef444074/1740d53aab4941949ca3e2a4a5fcd6d1/FLAGe6b1b7a59 [2025-02-06 17:57:57,808 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 17:57:57,808 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-02-06 17:57:57,833 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ef444074/1740d53aab4941949ca3e2a4a5fcd6d1/FLAGe6b1b7a59 [2025-02-06 17:57:57,958 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5ef444074/1740d53aab4941949ca3e2a4a5fcd6d1 [2025-02-06 17:57:57,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 17:57:57,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 17:57:57,968 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 17:57:57,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 17:57:57,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 17:57:57,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:57:57" (1/1) ... [2025-02-06 17:57:57,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db0cc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:57, skipping insertion in model container [2025-02-06 17:57:57,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 05:57:57" (1/1) ... [2025-02-06 17:57:58,074 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 17:57:59,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:57:59,286 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 17:57:59,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 17:57:59,766 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-02-06 17:57:59,771 INFO L204 MainTranslator]: Completed translation [2025-02-06 17:57:59,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59 WrapperNode [2025-02-06 17:57:59,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 17:57:59,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 17:57:59,773 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 17:57:59,773 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 17:57:59,777 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:57:59,866 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,202 INFO L138 Inliner]: procedures = 649, calls = 9400, calls flagged for inlining = 35, calls inlined = 34, statements flattened = 11429 [2025-02-06 17:58:00,202 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 17:58:00,203 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 17:58:00,203 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 17:58:00,203 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 17:58:00,211 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,323 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-02-06 17:58:00,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,590 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,770 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 17:58:00,771 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 17:58:00,771 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 17:58:00,771 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 17:58:00,776 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (1/1) ... [2025-02-06 17:58:00,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 17:58:00,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:58:00,810 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) [2025-02-06 17:58:00,818 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 [2025-02-06 17:58:00,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure strptime [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure strptime [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_set_utc [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_set_utc [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-02-06 17:58:00,835 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-02-06 17:58:00,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-02-06 17:58:00,836 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-02-06 17:58:00,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 17:58:01,258 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 17:58:01,259 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 17:58:01,634 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: havoc #t~ret478#1; [2025-02-06 17:58:20,487 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2943: call ULTIMATE.dealloc(getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset);havoc getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset; [2025-02-06 17:58:20,487 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2645: call ULTIMATE.dealloc(__main_~#ts~0#1.base, __main_~#ts~0#1.offset);havoc __main_~#ts~0#1.base, __main_~#ts~0#1.offset;call ULTIMATE.dealloc(__main_~#tm_time~0#1.base, __main_~#tm_time~0#1.offset);havoc __main_~#tm_time~0#1.base, __main_~#tm_time~0#1.offset;call ULTIMATE.dealloc(__main_~#buf_fmt_dt2str~0#1.base, __main_~#buf_fmt_dt2str~0#1.offset);havoc __main_~#buf_fmt_dt2str~0#1.base, __main_~#buf_fmt_dt2str~0#1.offset;call ULTIMATE.dealloc(__main_~#date_str~0#1.base, __main_~#date_str~0#1.offset);havoc __main_~#date_str~0#1.base, __main_~#date_str~0#1.offset;call ULTIMATE.dealloc(__main_~#fmt_str2dt~0#1.base, __main_~#fmt_str2dt~0#1.offset);havoc __main_~#fmt_str2dt~0#1.base, __main_~#fmt_str2dt~0#1.offset;call ULTIMATE.dealloc(__main_~#filename~0#1.base, __main_~#filename~0#1.offset);havoc __main_~#filename~0#1.base, __main_~#filename~0#1.offset;call ULTIMATE.dealloc(__main_~#isofmt_arg~0#1.base, __main_~#isofmt_arg~0#1.offset);havoc __main_~#isofmt_arg~0#1.base, __main_~#isofmt_arg~0#1.offset; [2025-02-06 17:58:20,487 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2524: call ULTIMATE.dealloc(bb_strtoll_~#endptr~0#1.base, bb_strtoll_~#endptr~0#1.offset);havoc bb_strtoll_~#endptr~0#1.base, bb_strtoll_~#endptr~0#1.offset; [2025-02-06 17:58:20,487 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3916: havoc getopt_long_#t~ret548#1; [2025-02-06 17:58:20,682 INFO L? ?]: Removed 1008 outVars from TransFormulas that were not future-live. [2025-02-06 17:58:20,682 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 17:58:20,712 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 17:58:20,712 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 17:58:20,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:58:20 BoogieIcfgContainer [2025-02-06 17:58:20,713 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 17:58:20,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 17:58:20,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 17:58:20,717 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 17:58:20,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 05:57:57" (1/3) ... [2025-02-06 17:58:20,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cecc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:58:20, skipping insertion in model container [2025-02-06 17:58:20,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 05:57:59" (2/3) ... [2025-02-06 17:58:20,718 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2cecc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 05:58:20, skipping insertion in model container [2025-02-06 17:58:20,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 05:58:20" (3/3) ... [2025-02-06 17:58:20,719 INFO L128 eAbstractionObserver]: Analyzing ICFG date-2.i [2025-02-06 17:58:20,729 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 17:58:20,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG date-2.i that has 15 procedures, 899 locations, 1 initial locations, 32 loop locations, and 128 error locations. [2025-02-06 17:58:20,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 17:58:20,806 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;@2c63efc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 17:58:20,806 INFO L334 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2025-02-06 17:58:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand has 899 states, 693 states have (on average 1.6536796536796536) internal successors, (1146), 830 states have internal predecessors, (1146), 63 states have call successors, (63), 14 states have call predecessors, (63), 14 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2025-02-06 17:58:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 17:58:20,817 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:58:20,817 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 17:58:20,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:58:20,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:58:20,822 INFO L85 PathProgramCache]: Analyzing trace with hash 43342847, now seen corresponding path program 1 times [2025-02-06 17:58:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:58:20,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571940653] [2025-02-06 17:58:20,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:58:20,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:58:28,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 17:58:28,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 17:58:28,989 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:58:28,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:58:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:58:30,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:58:30,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571940653] [2025-02-06 17:58:30,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571940653] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:58:30,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:58:30,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:58:30,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075737850] [2025-02-06 17:58:30,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:58:30,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:58:30,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:58:30,526 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:58:30,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:58:30,530 INFO L87 Difference]: Start difference. First operand has 899 states, 693 states have (on average 1.6536796536796536) internal successors, (1146), 830 states have internal predecessors, (1146), 63 states have call successors, (63), 14 states have call predecessors, (63), 14 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) 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) [2025-02-06 17:58:31,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:58:31,084 INFO L93 Difference]: Finished difference Result 1686 states and 2450 transitions. [2025-02-06 17:58:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:58:31,086 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 [2025-02-06 17:58:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:58:31,098 INFO L225 Difference]: With dead ends: 1686 [2025-02-06 17:58:31,098 INFO L226 Difference]: Without dead ends: 786 [2025-02-06 17:58:31,108 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 [2025-02-06 17:58:31,110 INFO L435 NwaCegarLoop]: 1062 mSDtfsCounter, 1 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 17:58:31,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2119 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 17:58:31,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2025-02-06 17:58:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 786. [2025-02-06 17:58:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 618 states have (on average 1.5970873786407767) internal successors, (987), 728 states have internal predecessors, (987), 58 states have call successors, (58), 14 states have call predecessors, (58), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 17:58:31,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1091 transitions. [2025-02-06 17:58:31,220 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1091 transitions. Word has length 4 [2025-02-06 17:58:31,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:58:31,224 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1091 transitions. [2025-02-06 17:58:31,224 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) [2025-02-06 17:58:31,224 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1091 transitions. [2025-02-06 17:58:31,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-02-06 17:58:31,224 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:58:31,224 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-06 17:58:31,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 17:58:31,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:58:31,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:58:31,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1557068387, now seen corresponding path program 1 times [2025-02-06 17:58:31,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:58:31,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17064278] [2025-02-06 17:58:31,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:58:31,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:58:38,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 17:58:38,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 17:58:38,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:58:38,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:58:39,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:58:39,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:58:39,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17064278] [2025-02-06 17:58:39,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17064278] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:58:39,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480170521] [2025-02-06 17:58:39,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:58:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:58:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:58:39,595 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) [2025-02-06 17:58:39,641 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 [2025-02-06 17:58:46,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-06 17:58:48,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-06 17:58:48,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:58:48,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:58:48,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 18682 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:58:48,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:58:48,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:58:48,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:58:48,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480170521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:58:48,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:58:48,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-02-06 17:58:48,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945963482] [2025-02-06 17:58:48,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:58:48,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 17:58:48,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:58:48,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 17:58:48,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:58:48,955 INFO L87 Difference]: Start difference. First operand 786 states and 1091 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) [2025-02-06 17:58:49,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:58:49,494 INFO L93 Difference]: Finished difference Result 786 states and 1091 transitions. [2025-02-06 17:58:49,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 17:58:49,495 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 [2025-02-06 17:58:49,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:58:49,498 INFO L225 Difference]: With dead ends: 786 [2025-02-06 17:58:49,498 INFO L226 Difference]: Without dead ends: 785 [2025-02-06 17:58:49,499 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 [2025-02-06 17:58:49,499 INFO L435 NwaCegarLoop]: 1053 mSDtfsCounter, 1 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 17:58:49,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2105 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 17:58:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2025-02-06 17:58:49,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 785. [2025-02-06 17:58:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 618 states have (on average 1.5954692556634305) internal successors, (986), 727 states have internal predecessors, (986), 58 states have call successors, (58), 14 states have call predecessors, (58), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 17:58:49,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1090 transitions. [2025-02-06 17:58:49,515 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1090 transitions. Word has length 7 [2025-02-06 17:58:49,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:58:49,515 INFO L471 AbstractCegarLoop]: Abstraction has 785 states and 1090 transitions. [2025-02-06 17:58:49,515 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) [2025-02-06 17:58:49,515 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1090 transitions. [2025-02-06 17:58:49,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 17:58:49,515 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:58:49,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-02-06 17:58:49,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 17:58:49,718 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 [2025-02-06 17:58:49,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr94ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:58:49,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:58:49,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1024478399, now seen corresponding path program 1 times [2025-02-06 17:58:49,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:58:49,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940518537] [2025-02-06 17:58:49,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:58:49,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:58:56,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 17:58:56,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 17:58:56,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:58:56,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:58:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 17:58:56,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:58:56,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940518537] [2025-02-06 17:58:56,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940518537] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:58:56,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 17:58:56,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 17:58:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345075492] [2025-02-06 17:58:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:58:56,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:58:56,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:58:56,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:58:56,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 17:58:56,767 INFO L87 Difference]: Start difference. First operand 785 states and 1090 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) [2025-02-06 17:58:57,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:58:57,213 INFO L93 Difference]: Finished difference Result 785 states and 1090 transitions. [2025-02-06 17:58:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:58:57,214 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 [2025-02-06 17:58:57,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:58:57,217 INFO L225 Difference]: With dead ends: 785 [2025-02-06 17:58:57,217 INFO L226 Difference]: Without dead ends: 784 [2025-02-06 17:58:57,217 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 [2025-02-06 17:58:57,217 INFO L435 NwaCegarLoop]: 1054 mSDtfsCounter, 0 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 17:58:57,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2106 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 17:58:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2025-02-06 17:58:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 782. [2025-02-06 17:58:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 616 states have (on average 1.5957792207792207) internal successors, (983), 724 states have internal predecessors, (983), 58 states have call successors, (58), 14 states have call predecessors, (58), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 17:58:57,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1087 transitions. [2025-02-06 17:58:57,234 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1087 transitions. Word has length 8 [2025-02-06 17:58:57,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:58:57,235 INFO L471 AbstractCegarLoop]: Abstraction has 782 states and 1087 transitions. [2025-02-06 17:58:57,235 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) [2025-02-06 17:58:57,235 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1087 transitions. [2025-02-06 17:58:57,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 17:58:57,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:58:57,235 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:58:57,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 17:58:57,235 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr93ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:58:57,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:58:57,235 INFO L85 PathProgramCache]: Analyzing trace with hash 576712853, now seen corresponding path program 1 times [2025-02-06 17:58:57,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:58:57,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132159304] [2025-02-06 17:58:57,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:58:57,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:03,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:59:04,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:59:04,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:04,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:05,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:05,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:05,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132159304] [2025-02-06 17:59:05,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132159304] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:05,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65741483] [2025-02-06 17:59:05,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:05,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:05,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:05,050 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) [2025-02-06 17:59:05,051 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 [2025-02-06 17:59:12,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 17:59:14,080 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 17:59:14,080 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:14,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:14,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 18699 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-06 17:59:14,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-02-06 17:59:14,248 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 17:59:14,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65741483] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 17:59:14,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 17:59:14,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-02-06 17:59:14,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938657465] [2025-02-06 17:59:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 17:59:14,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 17:59:14,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:14,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 17:59:14,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 17:59:14,249 INFO L87 Difference]: Start difference. First operand 782 states and 1087 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) [2025-02-06 17:59:14,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:14,645 INFO L93 Difference]: Finished difference Result 782 states and 1087 transitions. [2025-02-06 17:59:14,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 17:59:14,646 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 [2025-02-06 17:59:14,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:14,649 INFO L225 Difference]: With dead ends: 782 [2025-02-06 17:59:14,649 INFO L226 Difference]: Without dead ends: 780 [2025-02-06 17:59:14,649 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 [2025-02-06 17:59:14,652 INFO L435 NwaCegarLoop]: 1046 mSDtfsCounter, 868 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 902 SdHoareTripleChecker+Valid, 1221 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:14,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [902 Valid, 1221 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 17:59:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2025-02-06 17:59:14,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2025-02-06 17:59:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 616 states have (on average 1.5925324675324675) internal successors, (981), 722 states have internal predecessors, (981), 58 states have call successors, (58), 14 states have call predecessors, (58), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 17:59:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1085 transitions. [2025-02-06 17:59:14,672 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1085 transitions. Word has length 12 [2025-02-06 17:59:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:14,673 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1085 transitions. [2025-02-06 17:59:14,673 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) [2025-02-06 17:59:14,674 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1085 transitions. [2025-02-06 17:59:14,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-02-06 17:59:14,674 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:14,674 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:14,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 17:59:14,879 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 [2025-02-06 17:59:14,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr92ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:59:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash 698230595, now seen corresponding path program 1 times [2025-02-06 17:59:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618863741] [2025-02-06 17:59:14,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:14,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 17:59:21,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 17:59:21,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 17:59:21,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:21,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:22,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 17:59:22,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618863741] [2025-02-06 17:59:22,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618863741] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 17:59:22,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933493553] [2025-02-06 17:59:22,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 17:59:22,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 17:59:22,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 17:59:22,760 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) [2025-02-06 17:59:22,761 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 [2025-02-06 17:59:30,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-02-06 17:59:32,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-02-06 17:59:32,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 17:59:32,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 17:59:32,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 18700 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 17:59:32,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 17:59:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:32,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 17:59:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 17:59:32,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933493553] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 17:59:32,400 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 17:59:32,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-02-06 17:59:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314973396] [2025-02-06 17:59:32,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 17:59:32,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 17:59:32,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 17:59:32,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 17:59:32,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-02-06 17:59:32,401 INFO L87 Difference]: Start difference. First operand 780 states and 1085 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) [2025-02-06 17:59:33,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 17:59:33,597 INFO L93 Difference]: Finished difference Result 1563 states and 2175 transitions. [2025-02-06 17:59:33,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 17:59:33,597 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 [2025-02-06 17:59:33,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 17:59:33,600 INFO L225 Difference]: With dead ends: 1563 [2025-02-06 17:59:33,600 INFO L226 Difference]: Without dead ends: 789 [2025-02-06 17:59:33,602 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 [2025-02-06 17:59:33,602 INFO L435 NwaCegarLoop]: 1052 mSDtfsCounter, 4 mSDsluCounter, 4200 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5252 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 17:59:33,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5252 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 17:59:33,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2025-02-06 17:59:33,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2025-02-06 17:59:33,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 625 states have (on average 1.584) internal successors, (990), 731 states have internal predecessors, (990), 58 states have call successors, (58), 14 states have call predecessors, (58), 13 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2025-02-06 17:59:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1094 transitions. [2025-02-06 17:59:33,622 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1094 transitions. Word has length 13 [2025-02-06 17:59:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 17:59:33,622 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1094 transitions. [2025-02-06 17:59:33,622 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) [2025-02-06 17:59:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1094 transitions. [2025-02-06 17:59:33,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 17:59:33,623 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 17:59:33,623 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 17:59:33,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 17:59:33,824 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 [2025-02-06 17:59:33,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr92ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2025-02-06 17:59:33,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 17:59:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash -970145115, now seen corresponding path program 2 times [2025-02-06 17:59:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 17:59:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649699986] [2025-02-06 17:59:33,824 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 17:59:33,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms