./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/du-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 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/du-1.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 2683078e371eec45b7d8e6b27d52453497eec01e33c8b2caf576905064dc4b71 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 18:54:13,552 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 18:54:13,615 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2025-03-17 18:54:13,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 18:54:13,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 18:54:13,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 18:54:13,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 18:54:13,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 18:54:13,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 18:54:13,649 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 18:54:13,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 18:54:13,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 18:54:13,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 18:54:13,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 18:54:13,650 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 18:54:13,650 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 18:54:13,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 18:54:13,652 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 18:54:13,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:54:13,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 18:54:13,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 18:54:13,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 18:54:13,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 18:54:13,654 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 -> 2683078e371eec45b7d8e6b27d52453497eec01e33c8b2caf576905064dc4b71 [2025-03-17 18:54:13,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 18:54:13,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 18:54:13,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 18:54:13,895 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 18:54:13,895 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 18:54:13,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/du-1.i [2025-03-17 18:54:15,046 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e96255c/82a625e2a5b74a60a045f8fa7cdcc2d7/FLAG7d155705c [2025-03-17 18:54:15,371 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 18:54:15,372 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/du-1.i [2025-03-17 18:54:15,399 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e96255c/82a625e2a5b74a60a045f8fa7cdcc2d7/FLAG7d155705c [2025-03-17 18:54:15,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99e96255c/82a625e2a5b74a60a045f8fa7cdcc2d7 [2025-03-17 18:54:15,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 18:54:15,414 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 18:54:15,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 18:54:15,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 18:54:15,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 18:54:15,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:54:15" (1/1) ... [2025-03-17 18:54:15,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24184a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:15, skipping insertion in model container [2025-03-17 18:54:15,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 06:54:15" (1/1) ... [2025-03-17 18:54:15,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 18:54:16,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:54:16,522 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 18:54:16,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 18:54:16,922 WARN L1212 FunctionHandler]: The following functions are not defined or handled internally: vasprintf [2025-03-17 18:54:16,931 INFO L204 MainTranslator]: Completed translation [2025-03-17 18:54:16,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16 WrapperNode [2025-03-17 18:54:16,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 18:54:16,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 18:54:16,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 18:54:16,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 18:54:16,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,386 INFO L138 Inliner]: procedures = 670, calls = 9382, calls flagged for inlining = 35, calls inlined = 33, statements flattened = 11035 [2025-03-17 18:54:17,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 18:54:17,387 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 18:54:17,387 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 18:54:17,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 18:54:17,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,441 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2025-03-17 18:54:17,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,605 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,662 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,711 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 18:54:17,713 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 18:54:17,713 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 18:54:17,714 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 18:54:17,714 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (1/1) ... [2025-03-17 18:54:17,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 18:54:17,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:54:17,741 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) [2025-03-17 18:54:17,743 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 [2025-03-17 18:54:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure vasprintf [2025-03-17 18:54:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure vasprintf [2025-03-17 18:54:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure du [2025-03-17 18:54:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure du [2025-03-17 18:54:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 18:54:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2025-03-17 18:54:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure print [2025-03-17 18:54:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure print [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2025-03-17 18:54:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 18:54:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 18:54:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2025-03-17 18:54:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2025-03-17 18:54:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2025-03-17 18:54:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2025-03-17 18:54:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2025-03-17 18:54:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2025-03-17 18:54:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure stat [2025-03-17 18:54:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure stat [2025-03-17 18:54:17,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2025-03-17 18:54:17,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-17 18:54:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg [2025-03-17 18:54:17,767 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg [2025-03-17 18:54:17,767 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2025-03-17 18:54:17,768 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2025-03-17 18:54:17,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 18:54:18,154 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 18:54:18,155 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 18:54:18,497 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3682: havoc lstat_#t~ret345#1; [2025-03-17 18:54:18,498 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2774: call ULTIMATE.dealloc(~#statbuf~0#1.base, ~#statbuf~0#1.offset);havoc ~#statbuf~0#1.base, ~#statbuf~0#1.offset; [2025-03-17 18:54:18,498 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3494: havoc xasprintf_#t~mem282#1.base, xasprintf_#t~mem282#1.offset;call ULTIMATE.dealloc(xasprintf_~#string_ptr~0#1.base, xasprintf_~#string_ptr~0#1.offset);havoc xasprintf_~#string_ptr~0#1.base, xasprintf_~#string_ptr~0#1.offset; [2025-03-17 18:54:18,669 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3678: havoc #t~ret344#1; [2025-03-17 18:54:38,203 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2912: havoc __main_#t~mem136#1; [2025-03-17 18:54:38,204 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2956: call ULTIMATE.dealloc(getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset);havoc getopt32_~#complementary~0#1.base, getopt32_~#complementary~0#1.offset; [2025-03-17 18:54:38,204 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3728: havoc getopt_long_#t~ret373#1; [2025-03-17 18:54:38,415 INFO L? ?]: Removed 691 outVars from TransFormulas that were not future-live. [2025-03-17 18:54:38,415 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 18:54:38,464 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 18:54:38,464 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 18:54:38,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:54:38 BoogieIcfgContainer [2025-03-17 18:54:38,464 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 18:54:38,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 18:54:38,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 18:54:38,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 18:54:38,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 06:54:15" (1/3) ... [2025-03-17 18:54:38,471 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034e608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:54:38, skipping insertion in model container [2025-03-17 18:54:38,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 06:54:16" (2/3) ... [2025-03-17 18:54:38,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1034e608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 06:54:38, skipping insertion in model container [2025-03-17 18:54:38,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 06:54:38" (3/3) ... [2025-03-17 18:54:38,473 INFO L128 eAbstractionObserver]: Analyzing ICFG du-1.i [2025-03-17 18:54:38,484 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 18:54:38,487 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG du-1.i that has 14 procedures, 662 locations, 1 initial locations, 39 loop locations, and 69 error locations. [2025-03-17 18:54:38,547 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 18:54:38,556 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;@20eba807, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 18:54:38,556 INFO L334 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2025-03-17 18:54:38,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 662 states, 538 states have (on average 1.6561338289962826) internal successors, (891), 613 states have internal predecessors, (891), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2025-03-17 18:54:38,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 18:54:38,565 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:54:38,565 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 18:54:38,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:54:38,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:54:38,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1128016, now seen corresponding path program 1 times [2025-03-17 18:54:38,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:54:38,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571710466] [2025-03-17 18:54:38,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:54:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:54:40,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 18:54:41,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 18:54:41,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:54:41,164 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:54:42,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:54:42,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:54:42,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571710466] [2025-03-17 18:54:42,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571710466] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:54:42,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:54:42,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-17 18:54:42,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633396565] [2025-03-17 18:54:42,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:54:42,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:54:42,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:54:42,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:54:42,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:54:42,523 INFO L87 Difference]: Start difference. First operand has 662 states, 538 states have (on average 1.6561338289962826) internal successors, (891), 613 states have internal predecessors, (891), 41 states have call successors, (41), 13 states have call predecessors, (41), 13 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 18:54:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:54:42,699 INFO L93 Difference]: Finished difference Result 1229 states and 1855 transitions. [2025-03-17 18:54:42,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:54:42,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2025-03-17 18:54:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:54:42,708 INFO L225 Difference]: With dead ends: 1229 [2025-03-17 18:54:42,708 INFO L226 Difference]: Without dead ends: 570 [2025-03-17 18:54:42,712 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:54:42,714 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 1 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1558 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 18:54:42,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1558 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 18:54:42,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-03-17 18:54:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2025-03-17 18:54:42,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 475 states have (on average 1.583157894736842) internal successors, (752), 530 states have internal predecessors, (752), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:54:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 817 transitions. [2025-03-17 18:54:42,778 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 817 transitions. Word has length 3 [2025-03-17 18:54:42,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:54:42,779 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 817 transitions. [2025-03-17 18:54:42,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2025-03-17 18:54:42,779 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 817 transitions. [2025-03-17 18:54:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-03-17 18:54:42,779 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:54:42,779 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2025-03-17 18:54:42,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 18:54:42,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:54:42,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:54:42,781 INFO L85 PathProgramCache]: Analyzing trace with hash -753950083, now seen corresponding path program 1 times [2025-03-17 18:54:42,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:54:42,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019213300] [2025-03-17 18:54:42,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:54:42,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:54:44,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 18:54:45,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 18:54:45,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:54:45,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:54:45,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:54:45,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:54:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019213300] [2025-03-17 18:54:45,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019213300] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:54:45,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606453650] [2025-03-17 18:54:45,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:54:45,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:54:45,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:54:45,932 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) [2025-03-17 18:54:45,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 18:54:48,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-17 18:54:49,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-17 18:54:49,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:54:49,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:54:49,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 18365 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 18:54:49,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:54:50,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:54:50,007 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:54:50,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606453650] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:54:50,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:54:50,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2025-03-17 18:54:50,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175164080] [2025-03-17 18:54:50,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:54:50,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 18:54:50,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:54:50,008 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 18:54:50,008 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:54:50,008 INFO L87 Difference]: Start difference. First operand 570 states and 817 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-03-17 18:54:54,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:54:54,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:54:54,424 INFO L93 Difference]: Finished difference Result 570 states and 817 transitions. [2025-03-17 18:54:54,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 18:54:54,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2025-03-17 18:54:54,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:54:54,427 INFO L225 Difference]: With dead ends: 570 [2025-03-17 18:54:54,427 INFO L226 Difference]: Without dead ends: 569 [2025-03-17 18:54:54,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:54:54,428 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 1 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2329 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 18:54:54,428 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2329 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2025-03-17 18:54:54,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-03-17 18:54:54,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2025-03-17 18:54:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 475 states have (on average 1.5810526315789473) internal successors, (751), 529 states have internal predecessors, (751), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:54:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 816 transitions. [2025-03-17 18:54:54,445 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 816 transitions. Word has length 6 [2025-03-17 18:54:54,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:54:54,445 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 816 transitions. [2025-03-17 18:54:54,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2025-03-17 18:54:54,445 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 816 transitions. [2025-03-17 18:54:54,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2025-03-17 18:54:54,445 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:54:54,445 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2025-03-17 18:54:54,488 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 18:54:54,646 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 [2025-03-17 18:54:54,646 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:54:54,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:54:54,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1897615022, now seen corresponding path program 1 times [2025-03-17 18:54:54,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:54:54,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041887546] [2025-03-17 18:54:54,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:54:54,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:54:56,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-17 18:54:56,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-17 18:54:56,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:54:56,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:54:57,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 18:54:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:54:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041887546] [2025-03-17 18:54:57,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041887546] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:54:57,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:54:57,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:54:57,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335020256] [2025-03-17 18:54:57,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:54:57,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:54:57,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:54:57,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:54:57,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:54:57,337 INFO L87 Difference]: Start difference. First operand 569 states and 816 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-03-17 18:54:57,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:54:57,714 INFO L93 Difference]: Finished difference Result 569 states and 816 transitions. [2025-03-17 18:54:57,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:54:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2025-03-17 18:54:57,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:54:57,717 INFO L225 Difference]: With dead ends: 569 [2025-03-17 18:54:57,717 INFO L226 Difference]: Without dead ends: 568 [2025-03-17 18:54:57,717 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 [2025-03-17 18:54:57,718 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 0 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1554 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 18:54:57,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1554 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 18:54:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-17 18:54:57,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 566. [2025-03-17 18:54:57,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 473 states have (on average 1.5813953488372092) internal successors, (748), 526 states have internal predecessors, (748), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:54:57,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 813 transitions. [2025-03-17 18:54:57,733 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 813 transitions. Word has length 7 [2025-03-17 18:54:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:54:57,733 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 813 transitions. [2025-03-17 18:54:57,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2025-03-17 18:54:57,733 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 813 transitions. [2025-03-17 18:54:57,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-17 18:54:57,733 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:54:57,734 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:54:57,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 18:54:57,735 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:54:57,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:54:57,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1691370204, now seen corresponding path program 1 times [2025-03-17 18:54:57,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:54:57,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490018865] [2025-03-17 18:54:57,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:54:57,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:54:59,633 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 18:54:59,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 18:54:59,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:54:59,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:55:00,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:55:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490018865] [2025-03-17 18:55:00,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490018865] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:55:00,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809447542] [2025-03-17 18:55:00,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:00,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:55:00,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:55:00,602 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) [2025-03-17 18:55:00,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 18:55:02,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 18:55:04,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 18:55:04,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:04,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:04,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 18382 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-17 18:55:04,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:55:04,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 18:55:04,368 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 18:55:04,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809447542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:55:04,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-17 18:55:04,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2025-03-17 18:55:04,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993153721] [2025-03-17 18:55:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:55:04,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:55:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:55:04,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:55:04,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:55:04,369 INFO L87 Difference]: Start difference. First operand 566 states and 813 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-03-17 18:55:08,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:55:08,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:55:08,248 INFO L93 Difference]: Finished difference Result 566 states and 813 transitions. [2025-03-17 18:55:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:55:08,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11 [2025-03-17 18:55:08,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:55:08,251 INFO L225 Difference]: With dead ends: 566 [2025-03-17 18:55:08,251 INFO L226 Difference]: Without dead ends: 564 [2025-03-17 18:55:08,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:55:08,252 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 512 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-03-17 18:55:08,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1052 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-03-17 18:55:08,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-03-17 18:55:08,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-03-17 18:55:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 473 states have (on average 1.5771670190274842) internal successors, (746), 524 states have internal predecessors, (746), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:55:08,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 811 transitions. [2025-03-17 18:55:08,271 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 811 transitions. Word has length 11 [2025-03-17 18:55:08,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:55:08,272 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 811 transitions. [2025-03-17 18:55:08,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2025-03-17 18:55:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 811 transitions. [2025-03-17 18:55:08,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 18:55:08,273 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:55:08,273 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:55:08,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 18:55:08,473 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 [2025-03-17 18:55:08,473 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:55:08,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:55:08,474 INFO L85 PathProgramCache]: Analyzing trace with hash -892867707, now seen corresponding path program 1 times [2025-03-17 18:55:08,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:55:08,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333907158] [2025-03-17 18:55:08,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:08,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:55:10,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 18:55:10,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 18:55:10,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:10,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:11,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:55:11,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:55:11,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333907158] [2025-03-17 18:55:11,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333907158] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:55:11,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454488035] [2025-03-17 18:55:11,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:11,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:55:11,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:55:11,542 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) [2025-03-17 18:55:11,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 18:55:13,647 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 18:55:15,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 18:55:15,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:15,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:15,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 18383 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 18:55:15,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:55:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:55:15,303 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 18:55:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 18:55:15,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454488035] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 18:55:15,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 18:55:15,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2025-03-17 18:55:15,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450365339] [2025-03-17 18:55:15,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 18:55:15,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-17 18:55:15,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:55:15,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-17 18:55:15,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 18:55:15,342 INFO L87 Difference]: Start difference. First operand 564 states and 811 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2025-03-17 18:55:15,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:55:15,462 INFO L93 Difference]: Finished difference Result 1132 states and 1628 transitions. [2025-03-17 18:55:15,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 18:55:15,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 12 [2025-03-17 18:55:15,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:55:15,464 INFO L225 Difference]: With dead ends: 1132 [2025-03-17 18:55:15,464 INFO L226 Difference]: Without dead ends: 573 [2025-03-17 18:55:15,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-03-17 18:55:15,466 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 4 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 18:55:15,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1550 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 18:55:15,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2025-03-17 18:55:15,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2025-03-17 18:55:15,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 482 states have (on average 1.566390041493776) internal successors, (755), 533 states have internal predecessors, (755), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:55:15,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 820 transitions. [2025-03-17 18:55:15,482 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 820 transitions. Word has length 12 [2025-03-17 18:55:15,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:55:15,482 INFO L471 AbstractCegarLoop]: Abstraction has 573 states and 820 transitions. [2025-03-17 18:55:15,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2025-03-17 18:55:15,482 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 820 transitions. [2025-03-17 18:55:15,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 18:55:15,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:55:15,483 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:55:15,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 18:55:15,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:55:15,684 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:55:15,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:55:15,684 INFO L85 PathProgramCache]: Analyzing trace with hash 493913816, now seen corresponding path program 2 times [2025-03-17 18:55:15,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:55:15,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554703664] [2025-03-17 18:55:15,684 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 18:55:15,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:55:17,582 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-03-17 18:55:17,824 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 21 statements. [2025-03-17 18:55:17,824 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-17 18:55:17,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:18,963 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 18:55:18,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:55:18,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554703664] [2025-03-17 18:55:18,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554703664] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:55:18,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:55:18,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 18:55:18,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66322519] [2025-03-17 18:55:18,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:55:18,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 18:55:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:55:18,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 18:55:18,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:55:18,965 INFO L87 Difference]: Start difference. First operand 573 states and 820 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2025-03-17 18:55:23,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:55:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:55:23,439 INFO L93 Difference]: Finished difference Result 573 states and 820 transitions. [2025-03-17 18:55:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 18:55:23,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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 21 [2025-03-17 18:55:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:55:23,443 INFO L225 Difference]: With dead ends: 573 [2025-03-17 18:55:23,443 INFO L226 Difference]: Without dead ends: 571 [2025-03-17 18:55:23,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 18:55:23,444 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 511 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 2547 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 18:55:23,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 2547 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2025-03-17 18:55:23,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-03-17 18:55:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2025-03-17 18:55:23,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 482 states have (on average 1.562240663900415) internal successors, (753), 531 states have internal predecessors, (753), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:55:23,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 818 transitions. [2025-03-17 18:55:23,461 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 818 transitions. Word has length 21 [2025-03-17 18:55:23,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:55:23,462 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 818 transitions. [2025-03-17 18:55:23,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 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) [2025-03-17 18:55:23,462 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 818 transitions. [2025-03-17 18:55:23,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-03-17 18:55:23,463 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:55:23,463 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:55:23,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 18:55:23,465 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:55:23,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:55:23,465 INFO L85 PathProgramCache]: Analyzing trace with hash 520091148, now seen corresponding path program 1 times [2025-03-17 18:55:23,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:55:23,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433675530] [2025-03-17 18:55:23,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:23,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:55:25,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-03-17 18:55:25,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-03-17 18:55:25,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:25,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 18:55:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:55:26,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433675530] [2025-03-17 18:55:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433675530] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 18:55:26,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 18:55:26,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 18:55:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260698988] [2025-03-17 18:55:26,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 18:55:26,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 18:55:26,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:55:26,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 18:55:26,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 18:55:26,306 INFO L87 Difference]: Start difference. First operand 571 states and 818 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-03-17 18:55:30,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:55:30,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:55:30,702 INFO L93 Difference]: Finished difference Result 1126 states and 1621 transitions. [2025-03-17 18:55:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 18:55:30,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 26 [2025-03-17 18:55:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:55:30,705 INFO L225 Difference]: With dead ends: 1126 [2025-03-17 18:55:30,705 INFO L226 Difference]: Without dead ends: 574 [2025-03-17 18:55:30,706 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 [2025-03-17 18:55:30,707 INFO L435 NwaCegarLoop]: 774 mSDtfsCounter, 1 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 18:55:30,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1543 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2025-03-17 18:55:30,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2025-03-17 18:55:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 574. [2025-03-17 18:55:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 485 states have (on average 1.5587628865979382) internal successors, (756), 534 states have internal predecessors, (756), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:55:30,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 821 transitions. [2025-03-17 18:55:30,720 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 821 transitions. Word has length 26 [2025-03-17 18:55:30,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:55:30,720 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 821 transitions. [2025-03-17 18:55:30,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-03-17 18:55:30,720 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 821 transitions. [2025-03-17 18:55:30,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-17 18:55:30,722 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:55:30,722 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:55:30,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 18:55:30,722 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:55:30,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:55:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2089401137, now seen corresponding path program 1 times [2025-03-17 18:55:30,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:55:30,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747685493] [2025-03-17 18:55:30,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:30,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:55:32,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 18:55:32,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 18:55:32,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:32,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 18:55:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 18:55:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747685493] [2025-03-17 18:55:33,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747685493] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-17 18:55:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733885127] [2025-03-17 18:55:33,682 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:33,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:55:33,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 18:55:33,684 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 18:55:33,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 18:55:35,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-17 18:55:37,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-17 18:55:37,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:37,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 18:55:37,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 18568 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 18:55:37,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 18:55:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 18:55:37,643 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 18:55:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 18:55:37,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733885127] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 18:55:37,742 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-17 18:55:37,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2025-03-17 18:55:37,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981510854] [2025-03-17 18:55:37,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-17 18:55:37,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 18:55:37,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 18:55:37,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 18:55:37,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-17 18:55:37,744 INFO L87 Difference]: Start difference. First operand 574 states and 821 transitions. Second operand has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 18:55:41,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:55:46,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 18:55:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 18:55:46,465 INFO L93 Difference]: Finished difference Result 1151 states and 1651 transitions. [2025-03-17 18:55:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-17 18:55:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2025-03-17 18:55:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 18:55:46,468 INFO L225 Difference]: With dead ends: 1151 [2025-03-17 18:55:46,468 INFO L226 Difference]: Without dead ends: 591 [2025-03-17 18:55:46,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2025-03-17 18:55:46,470 INFO L435 NwaCegarLoop]: 768 mSDtfsCounter, 5 mSDsluCounter, 3830 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4598 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2025-03-17 18:55:46,470 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4598 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2025-03-17 18:55:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-03-17 18:55:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-03-17 18:55:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 503 states have (on average 1.536779324055666) internal successors, (773), 551 states have internal predecessors, (773), 36 states have call successors, (36), 13 states have call predecessors, (36), 11 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-17 18:55:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 838 transitions. [2025-03-17 18:55:46,482 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 838 transitions. Word has length 29 [2025-03-17 18:55:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 18:55:46,482 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 838 transitions. [2025-03-17 18:55:46,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.142857142857143) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-03-17 18:55:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 838 transitions. [2025-03-17 18:55:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-03-17 18:55:46,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 18:55:46,483 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 18:55:46,536 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 18:55:46,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 18:55:46,684 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [duErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, duErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2025-03-17 18:55:46,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 18:55:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1496062257, now seen corresponding path program 1 times [2025-03-17 18:55:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 18:55:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920991947] [2025-03-17 18:55:46,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 18:55:46,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 18:55:48,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-03-17 18:55:48,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-03-17 18:55:48,787 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 18:55:48,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat