./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 e2fb8bed 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-?-e2fb8be-m [2025-03-09 05:51:15,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 05:51:15,329 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-09 05:51:15,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 05:51:15,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 05:51:15,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 05:51:15,355 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 05:51:15,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 05:51:15,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 05:51:15,356 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 05:51:15,356 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 05:51:15,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 05:51:15,357 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 05:51:15,357 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 05:51:15,357 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 05:51:15,357 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 05:51:15,358 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:51:15,358 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 05:51:15,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 05:51:15,359 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 05:51:15,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 05:51:15,359 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 05:51:15,359 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 05:51:15,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 05:51:15,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 05:51:15,360 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 [2025-03-09 05:51:15,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 05:51:15,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 05:51:15,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 05:51:15,610 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 05:51:15,611 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 05:51:15,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-03-09 05:51:16,826 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d6b9065/38c68a72534a41deb4b6ce7b89d78094/FLAG532382143 [2025-03-09 05:51:17,171 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 05:51:17,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/date-2.i [2025-03-09 05:51:17,192 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d6b9065/38c68a72534a41deb4b6ce7b89d78094/FLAG532382143 [2025-03-09 05:51:17,387 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19d6b9065/38c68a72534a41deb4b6ce7b89d78094 [2025-03-09 05:51:17,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 05:51:17,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 05:51:17,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 05:51:17,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 05:51:17,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 05:51:17,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:51:17" (1/1) ... [2025-03-09 05:51:17,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc827a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:17, skipping insertion in model container [2025-03-09 05:51:17,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 05:51:17" (1/1) ... [2025-03-09 05:51:17,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 05:51:18,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:51:18,428 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 05:51:18,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 05:51:18,876 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-09 05:51:18,881 INFO L204 MainTranslator]: Completed translation [2025-03-09 05:51:18,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18 WrapperNode [2025-03-09 05:51:18,882 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 05:51:18,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 05:51:18,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 05:51:18,883 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 05:51:18,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:18,974 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,303 INFO L138 Inliner]: procedures = 649, calls = 9400, calls flagged for inlining = 35, calls inlined = 34, statements flattened = 11429 [2025-03-09 05:51:19,304 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 05:51:19,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 05:51:19,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 05:51:19,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 05:51:19,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,444 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-09 05:51:19,444 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,633 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,683 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,756 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 05:51:19,758 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 05:51:19,758 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 05:51:19,759 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 05:51:19,760 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (1/1) ... [2025-03-09 05:51:19,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 05:51:19,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:51:19,791 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) [2025-03-09 05:51:19,801 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 [2025-03-09 05:51:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 05:51:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure strptime [2025-03-09 05:51:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure strptime [2025-03-09 05:51:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2025-03-09 05:51:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2025-03-09 05:51:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-09 05:51:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-09 05:51:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-09 05:51:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-09 05:51:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2025-03-09 05:51:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure maybe_set_utc [2025-03-09 05:51:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure maybe_set_utc [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 05:51:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 05:51:19,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-09 05:51:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-09 05:51:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-09 05:51:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-09 05:51:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-09 05:51:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-09 05:51:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2025-03-09 05:51:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2025-03-09 05:51:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-09 05:51:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-09 05:51:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-09 05:51:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2025-03-09 05:51:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2025-03-09 05:51:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2025-03-09 05:51:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-09 05:51:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-09 05:51:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-09 05:51:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-09 05:51:20,250 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 05:51:20,251 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 05:51:20,778 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3823: havoc #t~ret478#1; [2025-03-09 05:51:40,395 INFO L1307 $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; [2025-03-09 05:51:40,396 INFO L1307 $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; [2025-03-09 05:51:40,396 INFO L1307 $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; [2025-03-09 05:51:40,396 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3916: havoc getopt_long_#t~ret548#1; [2025-03-09 05:51:40,661 INFO L? ?]: Removed 1008 outVars from TransFormulas that were not future-live. [2025-03-09 05:51:40,661 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 05:51:40,708 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 05:51:40,709 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 05:51:40,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:51:40 BoogieIcfgContainer [2025-03-09 05:51:40,709 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 05:51:40,711 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 05:51:40,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 05:51:40,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 05:51:40,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 05:51:17" (1/3) ... [2025-03-09 05:51:40,715 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6228c8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:51:40, skipping insertion in model container [2025-03-09 05:51:40,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 05:51:18" (2/3) ... [2025-03-09 05:51:40,716 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6228c8e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 05:51:40, skipping insertion in model container [2025-03-09 05:51:40,716 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 05:51:40" (3/3) ... [2025-03-09 05:51:40,717 INFO L128 eAbstractionObserver]: Analyzing ICFG date-2.i [2025-03-09 05:51:40,729 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 05:51:40,732 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. [2025-03-09 05:51:40,794 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 05:51:40,802 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;@5d9f9c3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 05:51:40,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2025-03-09 05:51:40,810 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) [2025-03-09 05:51:40,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-03-09 05:51:40,813 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:51:40,814 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-03-09 05:51:40,814 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)] === [2025-03-09 05:51:40,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:51:40,818 INFO L85 PathProgramCache]: Analyzing trace with hash 43250495, now seen corresponding path program 1 times [2025-03-09 05:51:40,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:51:40,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993867733] [2025-03-09 05:51:40,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:51:40,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:51:48,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 05:51:48,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 05:51:48,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:51:48,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:51:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:51:49,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:51:49,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993867733] [2025-03-09 05:51:49,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993867733] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:51:49,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:51:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:51:49,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7761329] [2025-03-09 05:51:49,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:51:49,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:51:49,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:51:49,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:51:49,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:51:49,828 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) [2025-03-09 05:51:50,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:51:50,398 INFO L93 Difference]: Finished difference Result 1681 states and 2445 transitions. [2025-03-09 05:51:50,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:51:50,404 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 [2025-03-09 05:51:50,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:51:50,417 INFO L225 Difference]: With dead ends: 1681 [2025-03-09 05:51:50,419 INFO L226 Difference]: Without dead ends: 784 [2025-03-09 05:51:50,428 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 [2025-03-09 05:51:50,431 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 [2025-03-09 05:51:50,432 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] [2025-03-09 05:51:50,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2025-03-09 05:51:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 784. [2025-03-09 05:51:50,500 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) [2025-03-09 05:51:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1089 transitions. [2025-03-09 05:51:50,510 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1089 transitions. Word has length 4 [2025-03-09 05:51:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:51:50,511 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1089 transitions. [2025-03-09 05:51:50,511 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) [2025-03-09 05:51:50,511 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1089 transitions. [2025-03-09 05:51:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-09 05:51:50,511 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:51:50,511 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2025-03-09 05:51:50,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 05:51:50,512 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)] === [2025-03-09 05:51:50,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:51:50,513 INFO L85 PathProgramCache]: Analyzing trace with hash -13362502, now seen corresponding path program 1 times [2025-03-09 05:51:50,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:51:50,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105821944] [2025-03-09 05:51:50,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:51:50,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:51:57,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 05:51:57,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 05:51:57,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:51:57,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:51:58,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:51:58,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:51:58,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105821944] [2025-03-09 05:51:58,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105821944] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:51:58,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292966642] [2025-03-09 05:51:58,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:51:58,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:51:58,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:51:58,804 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) [2025-03-09 05:51:58,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 05:52:05,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 05:52:07,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 05:52:07,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:07,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:07,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 18682 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:52:07,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:52:07,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:52:07,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:52:07,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292966642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:52:07,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 05:52:07,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2025-03-09 05:52:07,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637759433] [2025-03-09 05:52:07,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:52:07,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 05:52:07,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:52:07,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 05:52:07,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:52:07,688 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) [2025-03-09 05:52:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:52:08,209 INFO L93 Difference]: Finished difference Result 784 states and 1089 transitions. [2025-03-09 05:52:08,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 05:52:08,209 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 [2025-03-09 05:52:08,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:52:08,215 INFO L225 Difference]: With dead ends: 784 [2025-03-09 05:52:08,216 INFO L226 Difference]: Without dead ends: 783 [2025-03-09 05:52:08,216 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 [2025-03-09 05:52:08,216 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 [2025-03-09 05:52:08,217 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] [2025-03-09 05:52:08,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2025-03-09 05:52:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 783. [2025-03-09 05:52:08,237 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) [2025-03-09 05:52:08,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1088 transitions. [2025-03-09 05:52:08,243 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1088 transitions. Word has length 7 [2025-03-09 05:52:08,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:52:08,244 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 1088 transitions. [2025-03-09 05:52:08,244 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) [2025-03-09 05:52:08,244 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1088 transitions. [2025-03-09 05:52:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-09 05:52:08,244 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:52:08,244 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2025-03-09 05:52:08,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 05:52:08,445 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 [2025-03-09 05:52:08,445 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)] === [2025-03-09 05:52:08,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:52:08,446 INFO L85 PathProgramCache]: Analyzing trace with hash -414236223, now seen corresponding path program 1 times [2025-03-09 05:52:08,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:52:08,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413648359] [2025-03-09 05:52:08,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:52:08,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:52:14,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 05:52:14,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 05:52:14,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:14,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:15,519 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 05:52:15,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:52:15,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413648359] [2025-03-09 05:52:15,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413648359] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:52:15,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 05:52:15,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 05:52:15,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98058530] [2025-03-09 05:52:15,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:52:15,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:52:15,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:52:15,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:52:15,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 05:52:15,521 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) [2025-03-09 05:52:16,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:52:16,011 INFO L93 Difference]: Finished difference Result 783 states and 1088 transitions. [2025-03-09 05:52:16,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:52:16,012 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 [2025-03-09 05:52:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:52:16,015 INFO L225 Difference]: With dead ends: 783 [2025-03-09 05:52:16,015 INFO L226 Difference]: Without dead ends: 782 [2025-03-09 05:52:16,015 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 [2025-03-09 05:52:16,016 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, 0.5s IncrementalHoareTripleChecker+Time [2025-03-09 05:52:16,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2102 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-09 05:52:16,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2025-03-09 05:52:16,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 780. [2025-03-09 05:52:16,030 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) [2025-03-09 05:52:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1085 transitions. [2025-03-09 05:52:16,033 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1085 transitions. Word has length 8 [2025-03-09 05:52:16,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:52:16,033 INFO L471 AbstractCegarLoop]: Abstraction has 780 states and 1085 transitions. [2025-03-09 05:52:16,033 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) [2025-03-09 05:52:16,034 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1085 transitions. [2025-03-09 05:52:16,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-09 05:52:16,034 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:52:16,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:52:16,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 05:52:16,034 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)] === [2025-03-09 05:52:16,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:52:16,034 INFO L85 PathProgramCache]: Analyzing trace with hash -679574216, now seen corresponding path program 1 times [2025-03-09 05:52:16,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:52:16,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619687718] [2025-03-09 05:52:16,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:52:16,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:52:22,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 05:52:22,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 05:52:22,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:22,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:52:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:52:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619687718] [2025-03-09 05:52:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619687718] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:52:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014249547] [2025-03-09 05:52:23,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:52:23,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:52:23,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:52:23,615 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) [2025-03-09 05:52:23,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 05:52:30,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 05:52:31,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 05:52:31,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:31,952 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:32,037 INFO L256 TraceCheckSpWp]: Trace formula consists of 18699 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-09 05:52:32,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:52:32,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 05:52:32,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 05:52:32,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014249547] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 05:52:32,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 05:52:32,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-09 05:52:32,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766314648] [2025-03-09 05:52:32,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 05:52:32,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 05:52:32,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:52:32,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 05:52:32,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-09 05:52:32,125 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) [2025-03-09 05:52:32,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:52:32,499 INFO L93 Difference]: Finished difference Result 780 states and 1085 transitions. [2025-03-09 05:52:32,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 05:52:32,502 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 [2025-03-09 05:52:32,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:52:32,505 INFO L225 Difference]: With dead ends: 780 [2025-03-09 05:52:32,505 INFO L226 Difference]: Without dead ends: 778 [2025-03-09 05:52:32,507 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 [2025-03-09 05:52:32,508 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 [2025-03-09 05:52:32,508 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] [2025-03-09 05:52:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2025-03-09 05:52:32,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 778. [2025-03-09 05:52:32,527 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) [2025-03-09 05:52:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1083 transitions. [2025-03-09 05:52:32,531 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1083 transitions. Word has length 12 [2025-03-09 05:52:32,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:52:32,532 INFO L471 AbstractCegarLoop]: Abstraction has 778 states and 1083 transitions. [2025-03-09 05:52:32,532 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) [2025-03-09 05:52:32,532 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1083 transitions. [2025-03-09 05:52:32,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 05:52:32,533 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:52:32,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:52:32,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-09 05:52:32,733 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 [2025-03-09 05:52:32,734 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)] === [2025-03-09 05:52:32,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 05:52:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash 408037117, now seen corresponding path program 1 times [2025-03-09 05:52:32,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 05:52:32,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961005054] [2025-03-09 05:52:32,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:52:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 05:52:39,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:52:39,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:52:39,240 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:39,240 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:40,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:52:40,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 05:52:40,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961005054] [2025-03-09 05:52:40,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961005054] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 05:52:40,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020966589] [2025-03-09 05:52:40,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 05:52:40,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 05:52:40,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 05:52:40,128 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) [2025-03-09 05:52:40,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 05:52:47,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 05:52:48,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 05:52:48,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 05:52:48,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 05:52:48,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 18700 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-09 05:52:48,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 05:52:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:52:49,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 05:52:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 05:52:49,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020966589] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 05:52:49,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 05:52:49,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-03-09 05:52:49,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649417816] [2025-03-09 05:52:49,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 05:52:49,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-09 05:52:49,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 05:52:49,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-09 05:52:49,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-09 05:52:49,273 INFO L87 Difference]: Start difference. First operand 778 states and 1083 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) [2025-03-09 05:52:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 05:52:50,026 INFO L93 Difference]: Finished difference Result 1559 states and 2171 transitions. [2025-03-09 05:52:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 05:52:50,029 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 [2025-03-09 05:52:50,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 05:52:50,032 INFO L225 Difference]: With dead ends: 1559 [2025-03-09 05:52:50,032 INFO L226 Difference]: Without dead ends: 787 [2025-03-09 05:52:50,034 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 [2025-03-09 05:52:50,036 INFO L435 NwaCegarLoop]: 1050 mSDtfsCounter, 4 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-09 05:52:50,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3146 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-09 05:52:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2025-03-09 05:52:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2025-03-09 05:52:50,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 623 states have (on average 1.5858747993579454) internal successors, (988), 729 states have internal predecessors, (988), 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) [2025-03-09 05:52:50,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1092 transitions. [2025-03-09 05:52:50,058 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1092 transitions. Word has length 13 [2025-03-09 05:52:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 05:52:50,059 INFO L471 AbstractCegarLoop]: Abstraction has 787 states and 1092 transitions. [2025-03-09 05:52:50,059 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) [2025-03-09 05:52:50,059 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1092 transitions. [2025-03-09 05:52:50,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-03-09 05:52:50,059 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 05:52:50,060 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 05:52:50,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0