./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 02:45:46,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 02:45:46,611 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 02:45:46,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 02:45:46,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 02:45:46,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 02:45:46,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 02:45:46,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 02:45:46,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 02:45:46,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 02:45:46,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 02:45:46,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 02:45:46,635 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 02:45:46,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 02:45:46,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 02:45:46,637 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:45:46,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 02:45:46,637 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 02:45:46,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 02:45:46,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 02:45:46,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 02:45:46,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 02:45:46,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 02:45:46,638 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55885307ad7991ec619705bd65f9ccb0a7f28b4003909403684402b81add0d87 [2025-03-09 02:45:46,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 02:45:46,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 02:45:46,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 02:45:46,886 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 02:45:46,886 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 02:45:46,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2025-03-09 02:45:48,050 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de007e3/45d05cf44ea34b2eb2c5d56929a898fc/FLAG5017db177 [2025-03-09 02:45:48,305 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 02:45:48,305 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_hard.c [2025-03-09 02:45:48,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de007e3/45d05cf44ea34b2eb2c5d56929a898fc/FLAG5017db177 [2025-03-09 02:45:48,623 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54de007e3/45d05cf44ea34b2eb2c5d56929a898fc [2025-03-09 02:45:48,624 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 02:45:48,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 02:45:48,626 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 02:45:48,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 02:45:48,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 02:45:48,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,630 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ef315d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48, skipping insertion in model container [2025-03-09 02:45:48,630 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 02:45:48,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:45:48,785 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 02:45:48,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 02:45:48,821 INFO L204 MainTranslator]: Completed translation [2025-03-09 02:45:48,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48 WrapperNode [2025-03-09 02:45:48,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 02:45:48,822 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 02:45:48,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 02:45:48,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 02:45:48,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,854 INFO L138 Inliner]: procedures = 17, calls = 92, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2025-03-09 02:45:48,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 02:45:48,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 02:45:48,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 02:45:48,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 02:45:48,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,867 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,888 INFO L175 MemorySlicer]: Split 56 memory accesses to 8 slices as follows [2, 12, 7, 5, 6, 8, 7, 9]. 21 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 7, 0, 0, 0, 0, 0]. The 12 writes are split as follows [0, 3, 0, 1, 2, 2, 1, 3]. [2025-03-09 02:45:48,890 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,891 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 02:45:48,906 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 02:45:48,906 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 02:45:48,906 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 02:45:48,906 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (1/1) ... [2025-03-09 02:45:48,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 02:45:48,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:45:48,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 02:45:48,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-09 02:45:48,971 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_41_to_51_0 [2025-03-09 02:45:48,972 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_41_to_51_0 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_31_to_38_0 [2025-03-09 02:45:48,972 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_31_to_38_0 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 02:45:48,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 02:45:48,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-09 02:45:48,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-09 02:45:48,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 02:45:49,065 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 02:45:49,067 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 02:45:49,381 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L110: call ULTIMATE.dealloc(main_~#A~0#1.base, main_~#A~0#1.offset);havoc main_~#A~0#1.base, main_~#A~0#1.offset;call ULTIMATE.dealloc(main_~#B~0#1.base, main_~#B~0#1.offset);havoc main_~#B~0#1.base, main_~#B~0#1.offset;call ULTIMATE.dealloc(main_~#r~0#1.base, main_~#r~0#1.offset);havoc main_~#r~0#1.base, main_~#r~0#1.offset;call ULTIMATE.dealloc(main_~#d~0#1.base, main_~#d~0#1.offset);havoc main_~#d~0#1.base, main_~#d~0#1.offset;call ULTIMATE.dealloc(main_~#p~0#1.base, main_~#p~0#1.offset);havoc main_~#p~0#1.base, main_~#p~0#1.offset;call ULTIMATE.dealloc(main_~#q~0#1.base, main_~#q~0#1.offset);havoc main_~#q~0#1.base, main_~#q~0#1.offset; [2025-03-09 02:45:49,411 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2025-03-09 02:45:49,411 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 02:45:49,422 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 02:45:49,423 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 02:45:49,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:45:49 BoogieIcfgContainer [2025-03-09 02:45:49,423 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 02:45:49,425 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 02:45:49,425 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 02:45:49,428 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 02:45:49,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 02:45:48" (1/3) ... [2025-03-09 02:45:49,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1df5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:45:49, skipping insertion in model container [2025-03-09 02:45:49,429 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 02:45:48" (2/3) ... [2025-03-09 02:45:49,429 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1df5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 02:45:49, skipping insertion in model container [2025-03-09 02:45:49,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:45:49" (3/3) ... [2025-03-09 02:45:49,430 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_hard.c [2025-03-09 02:45:49,441 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 02:45:49,442 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_hard.c that has 4 procedures, 91 locations, 1 initial locations, 0 loop locations, and 24 error locations. [2025-03-09 02:45:49,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 02:45:49,499 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;@ec15ce6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 02:45:49,499 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2025-03-09 02:45:49,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 78 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2025-03-09 02:45:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-09 02:45:49,507 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:45:49,507 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:45:49,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_41_to_51_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 02:45:49,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:45:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2124294046, now seen corresponding path program 1 times [2025-03-09 02:45:49,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:45:49,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664834342] [2025-03-09 02:45:49,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:49,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:45:49,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 02:45:49,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 02:45:49,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:49,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:45:49,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 02:45:49,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:45:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664834342] [2025-03-09 02:45:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664834342] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:45:49,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:45:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 02:45:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298071126] [2025-03-09 02:45:49,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:45:49,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 02:45:49,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:45:49,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 02:45:49,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:45:49,708 INFO L87 Difference]: Start difference. First operand has 91 states, 52 states have (on average 1.5961538461538463) internal successors, (83), 78 states have internal predecessors, (83), 11 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:45:49,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:45:49,727 INFO L93 Difference]: Finished difference Result 178 states and 216 transitions. [2025-03-09 02:45:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 02:45:49,729 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2025-03-09 02:45:49,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:45:49,733 INFO L225 Difference]: With dead ends: 178 [2025-03-09 02:45:49,734 INFO L226 Difference]: Without dead ends: 82 [2025-03-09 02:45:49,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 02:45:49,738 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-09 02:45:49,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-09 02:45:49,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2025-03-09 02:45:49,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2025-03-09 02:45:49,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 46 states have (on average 1.565217391304348) internal successors, (72), 71 states have internal predecessors, (72), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-09 02:45:49,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2025-03-09 02:45:49,773 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 13 [2025-03-09 02:45:49,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:45:49,774 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2025-03-09 02:45:49,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-03-09 02:45:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2025-03-09 02:45:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-03-09 02:45:49,775 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:45:49,775 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:45:49,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 02:45:49,775 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_31_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 02:45:49,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:45:49,776 INFO L85 PathProgramCache]: Analyzing trace with hash 308776765, now seen corresponding path program 1 times [2025-03-09 02:45:49,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:45:49,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696465780] [2025-03-09 02:45:49,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:49,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:45:49,797 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:45:49,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:45:49,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:49,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:45:49,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510291099] [2025-03-09 02:45:49,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:49,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:45:49,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:45:49,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:45:49,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 02:45:49,904 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 02:45:49,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 02:45:49,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:49,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:45:49,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-03-09 02:45:49,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:45:50,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-09 02:45:50,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 02:45:50,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2025-03-09 02:45:50,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 02:45:50,361 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:45:50,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:45:50,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696465780] [2025-03-09 02:45:50,362 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:45:50,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510291099] [2025-03-09 02:45:50,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510291099] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:45:50,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:45:50,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-09 02:45:50,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416381392] [2025-03-09 02:45:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:45:50,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-09 02:45:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:45:50,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-09 02:45:50,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-03-09 02:45:50,365 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:45:50,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:45:50,606 INFO L93 Difference]: Finished difference Result 148 states and 162 transitions. [2025-03-09 02:45:50,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 02:45:50,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-03-09 02:45:50,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:45:50,608 INFO L225 Difference]: With dead ends: 148 [2025-03-09 02:45:50,608 INFO L226 Difference]: Without dead ends: 147 [2025-03-09 02:45:50,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-03-09 02:45:50,609 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 90 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:45:50,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 520 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:45:50,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2025-03-09 02:45:50,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 115. [2025-03-09 02:45:50,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.5) internal successors, (105), 95 states have internal predecessors, (105), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 02:45:50,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2025-03-09 02:45:50,620 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 20 [2025-03-09 02:45:50,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:45:50,620 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2025-03-09 02:45:50,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 8 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:45:50,620 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2025-03-09 02:45:50,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-09 02:45:50,621 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:45:50,621 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:45:50,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 02:45:50,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:45:50,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_31_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 02:45:50,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:45:50,826 INFO L85 PathProgramCache]: Analyzing trace with hash 982145151, now seen corresponding path program 1 times [2025-03-09 02:45:50,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:45:50,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669535316] [2025-03-09 02:45:50,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:50,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:45:50,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:45:50,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:45:50,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:50,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:45:50,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1326355575] [2025-03-09 02:45:50,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:50,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:45:50,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:45:50,871 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:45:50,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 02:45:50,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-09 02:45:50,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-09 02:45:50,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:50,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:45:50,970 INFO L256 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 39 conjuncts are in the unsatisfiable core [2025-03-09 02:45:50,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 02:45:50,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-09 02:45:51,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2025-03-09 02:45:51,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2025-03-09 02:45:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 02:45:51,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 02:45:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:45:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669535316] [2025-03-09 02:45:51,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-03-09 02:45:51,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326355575] [2025-03-09 02:45:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326355575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:45:51,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:45:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-09 02:45:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929287733] [2025-03-09 02:45:51,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:45:51,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-03-09 02:45:51,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:45:51,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-03-09 02:45:51,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:45:51,390 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:45:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:45:51,647 INFO L93 Difference]: Finished difference Result 147 states and 161 transitions. [2025-03-09 02:45:51,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-09 02:45:51,648 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2025-03-09 02:45:51,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:45:51,649 INFO L225 Difference]: With dead ends: 147 [2025-03-09 02:45:51,649 INFO L226 Difference]: Without dead ends: 146 [2025-03-09 02:45:51,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2025-03-09 02:45:51,649 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 99 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-09 02:45:51,650 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 481 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-09 02:45:51,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-03-09 02:45:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 115. [2025-03-09 02:45:51,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2025-03-09 02:45:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 136 transitions. [2025-03-09 02:45:51,668 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 136 transitions. Word has length 21 [2025-03-09 02:45:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:45:51,669 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 136 transitions. [2025-03-09 02:45:51,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-09 02:45:51,669 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 136 transitions. [2025-03-09 02:45:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2025-03-09 02:45:51,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:45:51,669 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:45:51,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 02:45:51,870 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,SelfDestructingSolverStorable2 [2025-03-09 02:45:51,871 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_31_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 02:45:51,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:45:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1320036381, now seen corresponding path program 1 times [2025-03-09 02:45:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:45:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937006219] [2025-03-09 02:45:51,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:51,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:45:51,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 29 statements into 1 equivalence classes. [2025-03-09 02:45:51,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 29 of 29 statements. [2025-03-09 02:45:51,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:51,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 02:45:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-09 02:45:52,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 02:45:52,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937006219] [2025-03-09 02:45:52,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937006219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 02:45:52,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 02:45:52,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-09 02:45:52,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188972345] [2025-03-09 02:45:52,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 02:45:52,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-09 02:45:52,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 02:45:52,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-09 02:45:52,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-03-09 02:45:52,391 INFO L87 Difference]: Start difference. First operand 115 states and 136 transitions. Second operand has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:45:52,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-09 02:45:52,515 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2025-03-09 02:45:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-09 02:45:52,515 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2025-03-09 02:45:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-09 02:45:52,516 INFO L225 Difference]: With dead ends: 119 [2025-03-09 02:45:52,516 INFO L226 Difference]: Without dead ends: 118 [2025-03-09 02:45:52,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2025-03-09 02:45:52,517 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-09 02:45:52,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 383 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-09 02:45:52,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2025-03-09 02:45:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 116. [2025-03-09 02:45:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 71 states have (on average 1.4647887323943662) internal successors, (104), 95 states have internal predecessors, (104), 15 states have call successors, (15), 6 states have call predecessors, (15), 7 states have return successors, (18), 15 states have call predecessors, (18), 15 states have call successors, (18) [2025-03-09 02:45:52,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 137 transitions. [2025-03-09 02:45:52,527 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 137 transitions. Word has length 29 [2025-03-09 02:45:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-09 02:45:52,527 INFO L471 AbstractCegarLoop]: Abstraction has 116 states and 137 transitions. [2025-03-09 02:45:52,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-09 02:45:52,527 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 137 transitions. [2025-03-09 02:45:52,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-03-09 02:45:52,527 INFO L210 NwaCegarLoop]: Found error trace [2025-03-09 02:45:52,527 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 02:45:52,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 02:45:52,529 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_31_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-09 02:45:52,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 02:45:52,529 INFO L85 PathProgramCache]: Analyzing trace with hash -2028545131, now seen corresponding path program 1 times [2025-03-09 02:45:52,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 02:45:52,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651589425] [2025-03-09 02:45:52,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:52,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 02:45:52,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 02:45:52,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 02:45:52,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:52,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-03-09 02:45:52,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [815376459] [2025-03-09 02:45:52,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 02:45:52,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 02:45:52,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 02:45:52,559 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 02:45:52,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 02:45:52,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 02:45:52,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 02:45:52,646 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:52,646 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 02:45:52,646 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 02:45:52,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-03-09 02:45:52,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-03-09 02:45:52,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 02:45:52,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 02:45:52,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 02:45:52,708 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 02:45:52,709 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location func_to_recursive_line_31_to_38_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_41_to_51_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2025-03-09 02:45:52,710 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location func_to_recursive_line_31_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2025-03-09 02:45:52,711 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2025-03-09 02:45:52,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-09 02:45:52,911 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 [2025-03-09 02:45:52,914 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-03-09 02:45:52,941 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 02:45:52,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 02:45:52 BoogieIcfgContainer [2025-03-09 02:45:52,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 02:45:52,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 02:45:52,944 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 02:45:52,944 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 02:45:52,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 02:45:49" (3/4) ... [2025-03-09 02:45:52,945 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-03-09 02:45:52,983 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 16. [2025-03-09 02:45:53,025 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 02:45:53,025 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 02:45:53,026 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 02:45:53,026 INFO L158 Benchmark]: Toolchain (without parser) took 4400.80ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 44.1MB in the end (delta: 87.2MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2025-03-09 02:45:53,027 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:45:53,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.66ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 119.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:45:53,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.36ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 117.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 02:45:53,028 INFO L158 Benchmark]: Boogie Preprocessor took 47.62ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 116.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:45:53,028 INFO L158 Benchmark]: IcfgBuilder took 517.41ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 92.3MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-09 02:45:53,029 INFO L158 Benchmark]: TraceAbstraction took 3517.93ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 51.1MB in the end (delta: 40.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2025-03-09 02:45:53,029 INFO L158 Benchmark]: Witness Printer took 82.22ms. Allocated memory is still 167.8MB. Free memory was 51.1MB in the beginning and 44.1MB in the end (delta: 7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 02:45:53,030 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.66ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 119.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.36ms. Allocated memory is still 167.8MB. Free memory was 119.3MB in the beginning and 117.8MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.62ms. Allocated memory is still 167.8MB. Free memory was 117.8MB in the beginning and 116.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 517.41ms. Allocated memory is still 167.8MB. Free memory was 116.0MB in the beginning and 92.3MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3517.93ms. Allocated memory is still 167.8MB. Free memory was 91.9MB in the beginning and 51.1MB in the end (delta: 40.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 82.22ms. Allocated memory is still 167.8MB. Free memory was 51.1MB in the beginning and 44.1MB in the end (delta: 7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 98]: integer overflow possible integer overflow possible We found a FailurePath: [L110] int A; [L111] int B; [L112] int r; [L113] int d; [L114] int p; [L115] int q; [L116] A = __VERIFIER_nondet_int() [L117] B = __VERIFIER_nondet_int() [L118] EXPR \read(B) [L118] CALL assume_abort_if_not(B >= 1) [L26] COND FALSE !(!cond) [L118] RET assume_abort_if_not(B >= 1) [L119] EXPR \read(A) [L119] r = A [L120] EXPR \read(B) [L120] d = B [L121] p = 1 [L122] q = 0 [L123] CALL func_to_recursive_line_31_to_38_0(&q, &B, &d, &A, &r, &p) VAL [\old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}] [L85] COND TRUE 1 [L88] EXPR \read(*q) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L88] CALL __VERIFIER_assert((*q) == 0) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L88] RET __VERIFIER_assert((*q) == 0) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L89] EXPR \read(*r) [L89] EXPR \read(*A) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L89] CALL __VERIFIER_assert((*r) == (*A)) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L89] RET __VERIFIER_assert((*r) == (*A)) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L90] EXPR \read(*d) [L90] EXPR \read(*B) [L90] EXPR \read(*p) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L90] EXPR (*B) * (*p) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L90] CALL __VERIFIER_assert((*d) == ((*B) * (*p))) VAL [\old(cond)=1] [L37] COND FALSE !(!cond) VAL [\old(cond)=1] [L90] RET __VERIFIER_assert((*d) == ((*B) * (*p))) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L91] EXPR \read(*r) [L91] EXPR \read(*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L91] COND FALSE !(!((*r) >= (*d))) [L98] EXPR \read(*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] [L98] 2 * (*d) VAL [A={10:0}, B={4:0}, \old(A)={10:0}, \old(B)={4:0}, \old(d)={5:0}, \old(p)={7:0}, \old(q)={9:0}, \old(r)={6:0}, d={5:0}, p={7:0}, q={9:0}, r={6:0}] - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 99]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 98]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 125]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 116 edges, 24 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 243 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 1484 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1166 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 470 IncrementalHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 318 mSDtfsCounter, 470 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 20 SyntacticMatches, 6 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 65 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 16 QuantifiedInterpolants, 819 SizeOfPredicates, 24 NumberOfNonLiveVariables, 431 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 20/20 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-03-09 02:45:53,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)