./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 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/busybox-1.22.0/date-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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-?-798a7b3-m [2025-03-04 14:38:09,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 14:38:09,724 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-04 14:38:09,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 14:38:09,731 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 14:38:09,750 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 14:38:09,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 14:38:09,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 14:38:09,751 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 14:38:09,751 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 14:38:09,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 14:38:09,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 14:38:09,752 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 14:38:09,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 14:38:09,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-04 14:38:09,753 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 14:38:09,754 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 14:38:09,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:38:09,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 14:38:09,755 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 14:38:09,755 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/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 [2025-03-04 14:38:09,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 14:38:09,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 14:38:09,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 14:38:09,975 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 14:38:09,975 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 14:38:09,976 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-03-04 14:38:11,147 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f497d96c2/95cd77b6f28e422796913cfb287cdf2c/FLAG915d1e0bb [2025-03-04 14:38:11,598 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 14:38:11,600 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-03-04 14:38:11,634 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f497d96c2/95cd77b6f28e422796913cfb287cdf2c/FLAG915d1e0bb [2025-03-04 14:38:11,649 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f497d96c2/95cd77b6f28e422796913cfb287cdf2c [2025-03-04 14:38:11,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 14:38:11,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 14:38:11,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 14:38:11,657 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 14:38:11,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 14:38:11,661 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:11" (1/1) ... [2025-03-04 14:38:11,662 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdeae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:11, skipping insertion in model container [2025-03-04 14:38:11,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:38:11" (1/1) ... [2025-03-04 14:38:11,719 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 14:38:12,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:38:12,798 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 14:38:12,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 14:38:13,251 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-04 14:38:13,257 INFO L204 MainTranslator]: Completed translation [2025-03-04 14:38:13,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13 WrapperNode [2025-03-04 14:38:13,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 14:38:13,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 14:38:13,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 14:38:13,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 14:38:13,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,351 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,648 INFO L138 Inliner]: procedures = 649, calls = 9400, calls flagged for inlining = 35, calls inlined = 34, statements flattened = 11429 [2025-03-04 14:38:13,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 14:38:13,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 14:38:13,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 14:38:13,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 14:38:13,658 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,741 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,750 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-04 14:38:13,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,915 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,933 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:13,984 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:14,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 14:38:14,032 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 14:38:14,033 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 14:38:14,033 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 14:38:14,034 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (1/1) ... [2025-03-04 14:38:14,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 14:38:14,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:38:14,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 14:38:14,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 14:38:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 14:38:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure strptime [2025-03-04 14:38:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure strptime [2025-03-04 14:38:14,089 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2025-03-04 14:38:14,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2025-03-04 14:38:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-04 14:38:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-04 14:38:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-04 14:38:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-04 14:38:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 14:38:14,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2025-03-04 14:38:14,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_set_utc [2025-03-04 14:38:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_set_utc [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 14:38:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 14:38:14,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-04 14:38:14,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-04 14:38:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2025-03-04 14:38:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-04 14:38:14,092 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-04 14:38:14,092 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-04 14:38:14,093 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-04 14:38:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 14:38:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 14:38:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 14:38:14,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2025-03-04 14:38:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2025-03-04 14:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-03-04 14:38:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-03-04 14:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2025-03-04 14:38:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2025-03-04 14:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 14:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-04 14:38:14,094 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-04 14:38:14,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 14:38:14,585 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 14:38:14,586 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 14:38:15,040 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: havoc #t~ret478#1; [2025-03-04 14:38:34,190 INFO L1325 $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; [2025-03-04 14:38:34,190 INFO L1325 $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; [2025-03-04 14:38:34,190 INFO L1325 $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; [2025-03-04 14:38:34,190 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3916: havoc getopt_long_#t~ret548#1; [2025-03-04 14:38:34,405 INFO L? ?]: Removed 1008 outVars from TransFormulas that were not future-live. [2025-03-04 14:38:34,405 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 14:38:34,445 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 14:38:34,445 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 14:38:34,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:34 BoogieIcfgContainer [2025-03-04 14:38:34,445 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 14:38:34,450 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 14:38:34,450 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 14:38:34,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 14:38:34,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:38:11" (1/3) ... [2025-03-04 14:38:34,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8326ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:34, skipping insertion in model container [2025-03-04 14:38:34,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:38:13" (2/3) ... [2025-03-04 14:38:34,454 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8326ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:38:34, skipping insertion in model container [2025-03-04 14:38:34,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:38:34" (3/3) ... [2025-03-04 14:38:34,455 INFO L128 eAbstractionObserver]: Analyzing ICFG date-2.i [2025-03-04 14:38:34,466 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 14:38:34,470 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG date-2.i that has 15 procedures, 896 locations, 1 initial locations, 32 loop locations, and 128 error locations. [2025-03-04 14:38:34,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 14:38:34,553 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;@324b2b7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 14:38:34,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2025-03-04 14:38:34,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 896 states, 690 states have (on average 1.6565217391304348) internal successors, (1143), 827 states have internal predecessors, (1143), 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) [2025-03-04 14:38:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-04 14:38:34,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:38:34,566 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-04 14:38:34,566 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)] === [2025-03-04 14:38:34,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:38:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash 43250495, now seen corresponding path program 1 times [2025-03-04 14:38:34,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:38:34,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619173805] [2025-03-04 14:38:34,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:38:34,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:38:42,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-04 14:38:42,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-04 14:38:42,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:38:42,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:38:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:38:43,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:38:43,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619173805] [2025-03-04 14:38:43,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619173805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:38:43,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:38:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:38:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493328379] [2025-03-04 14:38:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:38:43,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:38:43,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:38:43,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:38:43,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:38:43,919 INFO L87 Difference]: Start difference. First operand has 896 states, 690 states have (on average 1.6565217391304348) internal successors, (1143), 827 states have internal predecessors, (1143), 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) [2025-03-04 14:38:44,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:38:44,564 INFO L93 Difference]: Finished difference Result 1681 states and 2445 transitions. [2025-03-04 14:38:44,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:38:44,566 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 [2025-03-04 14:38:44,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:38:44,580 INFO L225 Difference]: With dead ends: 1681 [2025-03-04 14:38:44,580 INFO L226 Difference]: Without dead ends: 784 [2025-03-04 14:38:44,588 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 [2025-03-04 14:38:44,591 INFO L435 NwaCegarLoop]: 1060 mSDtfsCounter, 1 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2115 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 [2025-03-04 14:38:44,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2115 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 14:38:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2025-03-04 14:38:44,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2025-03-04 14:38:44,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 616 states have (on average 1.599025974025974) internal successors, (985), 726 states have internal predecessors, (985), 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) [2025-03-04 14:38:44,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1089 transitions. [2025-03-04 14:38:44,678 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1089 transitions. Word has length 4 [2025-03-04 14:38:44,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:38:44,678 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1089 transitions. [2025-03-04 14:38:44,678 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) [2025-03-04 14:38:44,679 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1089 transitions. [2025-03-04 14:38:44,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-04 14:38:44,679 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:38:44,679 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-04 14:38:44,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 14:38:44,680 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)] === [2025-03-04 14:38:44,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:38:44,680 INFO L85 PathProgramCache]: Analyzing trace with hash -13362502, now seen corresponding path program 1 times [2025-03-04 14:38:44,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:38:44,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094203768] [2025-03-04 14:38:44,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:38:44,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:38:51,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:38:51,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:38:51,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:38:51,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:38:52,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:38:52,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:38:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094203768] [2025-03-04 14:38:52,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094203768] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:38:52,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993004986] [2025-03-04 14:38:52,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:38:52,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:38:52,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:38:52,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:38:52,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-04 14:39:00,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-04 14:39:02,638 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-04 14:39:02,638 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:39:02,638 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:39:02,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 18682 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-04 14:39:02,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:39:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:39:02,859 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:39:02,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993004986] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:39:02,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:39:02,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-04 14:39:02,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040134781] [2025-03-04 14:39:02,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:39:02,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-04 14:39:02,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:39:02,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-04 14:39:02,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:39:02,861 INFO L87 Difference]: Start difference. First operand 784 states and 1089 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) [2025-03-04 14:39:03,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:39:03,392 INFO L93 Difference]: Finished difference Result 784 states and 1089 transitions. [2025-03-04 14:39:03,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-04 14:39:03,393 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 [2025-03-04 14:39:03,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:39:03,398 INFO L225 Difference]: With dead ends: 784 [2025-03-04 14:39:03,399 INFO L226 Difference]: Without dead ends: 783 [2025-03-04 14:39:03,399 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 [2025-03-04 14:39:03,400 INFO L435 NwaCegarLoop]: 1051 mSDtfsCounter, 1 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2101 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 [2025-03-04 14:39:03,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2101 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-04 14:39:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2025-03-04 14:39:03,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2025-03-04 14:39:03,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 616 states have (on average 1.5974025974025974) internal successors, (984), 725 states have internal predecessors, (984), 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) [2025-03-04 14:39:03,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1088 transitions. [2025-03-04 14:39:03,429 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1088 transitions. Word has length 7 [2025-03-04 14:39:03,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:39:03,429 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1088 transitions. [2025-03-04 14:39:03,429 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) [2025-03-04 14:39:03,430 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1088 transitions. [2025-03-04 14:39:03,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-04 14:39:03,430 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:39:03,430 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-04 14:39:03,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-04 14:39:03,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:39:03,631 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)] === [2025-03-04 14:39:03,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:39:03,631 INFO L85 PathProgramCache]: Analyzing trace with hash -414236223, now seen corresponding path program 1 times [2025-03-04 14:39:03,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:39:03,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252257696] [2025-03-04 14:39:03,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:39:03,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:39:10,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-04 14:39:10,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-04 14:39:10,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:39:10,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:39:11,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 14:39:11,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:39:11,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252257696] [2025-03-04 14:39:11,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252257696] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:39:11,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 14:39:11,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 14:39:11,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413864131] [2025-03-04 14:39:11,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:39:11,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:39:11,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:39:11,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:39:11,480 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 14:39:11,480 INFO L87 Difference]: Start difference. First operand 783 states and 1088 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) [2025-03-04 14:39:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:39:11,930 INFO L93 Difference]: Finished difference Result 783 states and 1088 transitions. [2025-03-04 14:39:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:39:11,931 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 [2025-03-04 14:39:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:39:11,934 INFO L225 Difference]: With dead ends: 783 [2025-03-04 14:39:11,934 INFO L226 Difference]: Without dead ends: 782 [2025-03-04 14:39:11,934 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 [2025-03-04 14:39:11,934 INFO L435 NwaCegarLoop]: 1052 mSDtfsCounter, 0 mSDsluCounter, 1050 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2102 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 [2025-03-04 14:39:11,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2102 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:39:11,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2025-03-04 14:39:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 780. [2025-03-04 14:39:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 614 states have (on average 1.5977198697068404) 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) [2025-03-04 14:39:11,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1085 transitions. [2025-03-04 14:39:11,963 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1085 transitions. Word has length 8 [2025-03-04 14:39:11,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:39:11,963 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1085 transitions. [2025-03-04 14:39:11,963 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) [2025-03-04 14:39:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1085 transitions. [2025-03-04 14:39:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-04 14:39:11,964 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:39:11,964 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:39:11,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 14:39:11,964 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)] === [2025-03-04 14:39:11,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:39:11,965 INFO L85 PathProgramCache]: Analyzing trace with hash -679574216, now seen corresponding path program 1 times [2025-03-04 14:39:11,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:39:11,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487898520] [2025-03-04 14:39:11,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:39:11,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:39:19,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:39:19,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:39:19,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:39:19,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:39:20,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:39:20,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:39:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487898520] [2025-03-04 14:39:20,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487898520] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:39:20,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207199448] [2025-03-04 14:39:20,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:39:20,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:39:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:39:20,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:39:20,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-04 14:39:28,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-04 14:39:30,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-04 14:39:30,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:39:30,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:39:30,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 18699 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-04 14:39:30,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-04 14:39:30,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-04 14:39:30,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-04 14:39:30,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207199448] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 14:39:30,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-04 14:39:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-04 14:39:30,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60931492] [2025-03-04 14:39:30,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 14:39:30,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 14:39:30,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 14:39:30,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 14:39:30,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-04 14:39:30,184 INFO L87 Difference]: Start difference. First operand 780 states and 1085 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) [2025-03-04 14:39:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-04 14:39:30,572 INFO L93 Difference]: Finished difference Result 780 states and 1085 transitions. [2025-03-04 14:39:30,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 14:39:30,572 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 [2025-03-04 14:39:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-04 14:39:30,575 INFO L225 Difference]: With dead ends: 780 [2025-03-04 14:39:30,575 INFO L226 Difference]: Without dead ends: 778 [2025-03-04 14:39:30,576 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 [2025-03-04 14:39:30,576 INFO L435 NwaCegarLoop]: 1044 mSDtfsCounter, 867 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1218 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 [2025-03-04 14:39:30,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1218 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-04 14:39:30,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2025-03-04 14:39:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2025-03-04 14:39:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 614 states have (on average 1.5944625407166124) internal successors, (979), 720 states have internal predecessors, (979), 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) [2025-03-04 14:39:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1083 transitions. [2025-03-04 14:39:30,596 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1083 transitions. Word has length 12 [2025-03-04 14:39:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-04 14:39:30,597 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1083 transitions. [2025-03-04 14:39:30,597 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) [2025-03-04 14:39:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1083 transitions. [2025-03-04 14:39:30,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-04 14:39:30,598 INFO L210 NwaCegarLoop]: Found error trace [2025-03-04 14:39:30,598 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 14:39:30,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-04 14:39:30,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2025-03-04 14:39:30,799 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)] === [2025-03-04 14:39:30,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 14:39:30,799 INFO L85 PathProgramCache]: Analyzing trace with hash 408037117, now seen corresponding path program 1 times [2025-03-04 14:39:30,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 14:39:30,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324791572] [2025-03-04 14:39:30,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:39:30,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 14:39:38,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-04 14:39:38,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-04 14:39:38,345 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 14:39:38,345 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 14:39:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 14:39:39,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 14:39:39,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324791572] [2025-03-04 14:39:39,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324791572] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-04 14:39:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111497595] [2025-03-04 14:39:39,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 14:39:39,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-04 14:39:39,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 14:39:39,351 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-04 14:39:39,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-04 14:39:46,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes.