./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_bresenham-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_bresenham-ll.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d115e09498e3f278fd539730f0fa55e0745770e0304e10455a14000311085b68 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:34:10,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:34:10,182 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:34:10,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:34:10,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:34:10,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:34:10,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:34:10,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:34:10,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:34:10,199 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:34:10,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:34:10,200 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:34:10,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:34:10,200 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:34:10,201 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:34:10,202 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:34:10,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:34:10,202 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:34:10,203 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:34:10,203 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:34:10,203 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:34:10,203 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d115e09498e3f278fd539730f0fa55e0745770e0304e10455a14000311085b68 [2025-02-06 14:34:10,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:34:10,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:34:10,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:34:10,362 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:34:10,362 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:34:10,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_bresenham-ll.c [2025-02-06 14:34:11,457 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b32fe5b7/c4409fa3dd1e4feabd685ccfbff4d89a/FLAGe7eff6dec [2025-02-06 14:34:11,711 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:34:11,713 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_bresenham-ll.c [2025-02-06 14:34:11,723 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b32fe5b7/c4409fa3dd1e4feabd685ccfbff4d89a/FLAGe7eff6dec [2025-02-06 14:34:12,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6b32fe5b7/c4409fa3dd1e4feabd685ccfbff4d89a [2025-02-06 14:34:12,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:34:12,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:34:12,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:34:12,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:34:12,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:34:12,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67880c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12, skipping insertion in model container [2025-02-06 14:34:12,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,052 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:34:12,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:34:12,182 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:34:12,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:34:12,215 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:34:12,215 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12 WrapperNode [2025-02-06 14:34:12,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:34:12,216 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:34:12,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:34:12,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:34:12,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,245 INFO L138 Inliner]: procedures = 16, calls = 77, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 117 [2025-02-06 14:34:12,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:34:12,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:34:12,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:34:12,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:34:12,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,258 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,277 INFO L175 MemorySlicer]: Split 46 memory accesses to 8 slices as follows [2, 4, 6, 8, 7, 7, 4, 8]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0]. The 13 writes are split as follows [0, 2, 2, 1, 2, 1, 2, 3]. [2025-02-06 14:34:12,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,285 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,287 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:34:12,295 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:34:12,295 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:34:12,295 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:34:12,296 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (1/1) ... [2025-02-06 14:34:12,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:34:12,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:12,329 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 14:34:12,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-06 14:34:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:34:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:34:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_0_to_41_0 [2025-02-06 14:34:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_0_to_41_0 [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 14:34:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 14:34:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 14:34:12,426 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:34:12,427 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:34:12,714 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L85: call ULTIMATE.dealloc(main_~#X~0#1.base, main_~#X~0#1.offset);havoc main_~#X~0#1.base, main_~#X~0#1.offset;call ULTIMATE.dealloc(main_~#Y~0#1.base, main_~#Y~0#1.offset);havoc main_~#Y~0#1.base, main_~#Y~0#1.offset;call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset;call ULTIMATE.dealloc(main_~#y~0#1.base, main_~#y~0#1.offset);havoc main_~#y~0#1.base, main_~#y~0#1.offset;call ULTIMATE.dealloc(main_~#v~0#1.base, main_~#v~0#1.offset);havoc main_~#v~0#1.base, main_~#v~0#1.offset;call ULTIMATE.dealloc(main_~#xy~0#1.base, main_~#xy~0#1.offset);havoc main_~#xy~0#1.base, main_~#xy~0#1.offset;call ULTIMATE.dealloc(main_~#yx~0#1.base, main_~#yx~0#1.offset);havoc main_~#yx~0#1.base, main_~#yx~0#1.offset; [2025-02-06 14:34:12,753 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-02-06 14:34:12,753 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:34:12,761 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:34:12,761 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:34:12,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:34:12 BoogieIcfgContainer [2025-02-06 14:34:12,762 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:34:12,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:34:12,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:34:12,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:34:12,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:34:12" (1/3) ... [2025-02-06 14:34:12,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316d22e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:34:12, skipping insertion in model container [2025-02-06 14:34:12,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:34:12" (2/3) ... [2025-02-06 14:34:12,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@316d22e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:34:12, skipping insertion in model container [2025-02-06 14:34:12,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:34:12" (3/3) ... [2025-02-06 14:34:12,768 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_bresenham-ll.c [2025-02-06 14:34:12,778 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:34:12,780 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_bresenham-ll.c that has 3 procedures, 141 locations, 1 initial locations, 0 loop locations, and 58 error locations. [2025-02-06 14:34:12,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:34:12,834 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;@1e7028e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:34:12,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2025-02-06 14:34:12,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 76 states have (on average 1.8157894736842106) internal successors, (138), 135 states have internal predecessors, (138), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-06 14:34:12,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-02-06 14:34:12,840 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:12,840 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-02-06 14:34:12,840 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:12,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:12,844 INFO L85 PathProgramCache]: Analyzing trace with hash 166792, now seen corresponding path program 1 times [2025-02-06 14:34:12,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:12,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965110076] [2025-02-06 14:34:12,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:12,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:12,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-06 14:34:12,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-06 14:34:12,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:12,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:13,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965110076] [2025-02-06 14:34:13,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965110076] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:13,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:13,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:34:13,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875825098] [2025-02-06 14:34:13,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:13,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:34:13,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:13,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:34:13,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:34:13,192 INFO L87 Difference]: Start difference. First operand has 141 states, 76 states have (on average 1.8157894736842106) internal successors, (138), 135 states have internal predecessors, (138), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2025-02-06 14:34:13,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:13,235 INFO L93 Difference]: Finished difference Result 270 states and 283 transitions. [2025-02-06 14:34:13,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:34:13,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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 [2025-02-06 14:34:13,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:13,244 INFO L225 Difference]: With dead ends: 270 [2025-02-06 14:34:13,245 INFO L226 Difference]: Without dead ends: 133 [2025-02-06 14:34:13,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:34:13,251 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 3 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:13,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 268 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2025-02-06 14:34:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2025-02-06 14:34:13,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 71 states have (on average 1.8169014084507042) internal successors, (129), 128 states have internal predecessors, (129), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:34:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 135 transitions. [2025-02-06 14:34:13,289 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 135 transitions. Word has length 3 [2025-02-06 14:34:13,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:13,289 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 135 transitions. [2025-02-06 14:34:13,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 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) [2025-02-06 14:34:13,290 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 135 transitions. [2025-02-06 14:34:13,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-06 14:34:13,291 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:13,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-06 14:34:13,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:34:13,291 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:13,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash 5170655, now seen corresponding path program 1 times [2025-02-06 14:34:13,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:13,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722600291] [2025-02-06 14:34:13,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:13,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:13,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-06 14:34:13,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-06 14:34:13,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:13,320 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:13,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:13,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722600291] [2025-02-06 14:34:13,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722600291] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:13,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:13,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:34:13,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993777161] [2025-02-06 14:34:13,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:13,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 14:34:13,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:13,388 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 14:34:13,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:34:13,389 INFO L87 Difference]: Start difference. First operand 133 states and 135 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:13,403 INFO L93 Difference]: Finished difference Result 133 states and 135 transitions. [2025-02-06 14:34:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 14:34:13,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2025-02-06 14:34:13,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:13,404 INFO L225 Difference]: With dead ends: 133 [2025-02-06 14:34:13,404 INFO L226 Difference]: Without dead ends: 132 [2025-02-06 14:34:13,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 14:34:13,405 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:13,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 255 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:13,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2025-02-06 14:34:13,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2025-02-06 14:34:13,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 71 states have (on average 1.8028169014084507) internal successors, (128), 127 states have internal predecessors, (128), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:34:13,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 134 transitions. [2025-02-06 14:34:13,411 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 134 transitions. Word has length 4 [2025-02-06 14:34:13,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:13,411 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 134 transitions. [2025-02-06 14:34:13,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:13,411 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 134 transitions. [2025-02-06 14:34:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-02-06 14:34:13,411 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:13,411 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-02-06 14:34:13,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 14:34:13,411 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:13,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash 160290406, now seen corresponding path program 1 times [2025-02-06 14:34:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:13,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200087088] [2025-02-06 14:34:13,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:13,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:13,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-06 14:34:13,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-06 14:34:13,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:13,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:13,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:13,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200087088] [2025-02-06 14:34:13,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200087088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:13,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:13,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:34:13,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998432658] [2025-02-06 14:34:13,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:13,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:34:13,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:13,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:34:13,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:13,540 INFO L87 Difference]: Start difference. First operand 132 states and 134 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:13,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:13,583 INFO L93 Difference]: Finished difference Result 132 states and 134 transitions. [2025-02-06 14:34:13,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:34:13,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2025-02-06 14:34:13,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:13,585 INFO L225 Difference]: With dead ends: 132 [2025-02-06 14:34:13,585 INFO L226 Difference]: Without dead ends: 131 [2025-02-06 14:34:13,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:34:13,585 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 3 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:13,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 377 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2025-02-06 14:34:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2025-02-06 14:34:13,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 71 states have (on average 1.7887323943661972) internal successors, (127), 126 states have internal predecessors, (127), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:34:13,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 133 transitions. [2025-02-06 14:34:13,591 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 133 transitions. Word has length 5 [2025-02-06 14:34:13,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:13,591 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 133 transitions. [2025-02-06 14:34:13,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 133 transitions. [2025-02-06 14:34:13,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-06 14:34:13,592 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:13,592 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 14:34:13,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 14:34:13,592 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:13,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:13,593 INFO L85 PathProgramCache]: Analyzing trace with hash 674035389, now seen corresponding path program 1 times [2025-02-06 14:34:13,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:13,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510901659] [2025-02-06 14:34:13,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:13,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:13,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 14:34:13,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 14:34:13,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:13,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:13,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:13,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510901659] [2025-02-06 14:34:13,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510901659] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:13,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:13,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:34:13,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520041275] [2025-02-06 14:34:13,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:13,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:34:13,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:13,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:34:13,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:13,726 INFO L87 Difference]: Start difference. First operand 131 states and 133 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2025-02-06 14:34:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:13,759 INFO L93 Difference]: Finished difference Result 131 states and 133 transitions. [2025-02-06 14:34:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:34:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 [2025-02-06 14:34:13,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:13,760 INFO L225 Difference]: With dead ends: 131 [2025-02-06 14:34:13,761 INFO L226 Difference]: Without dead ends: 130 [2025-02-06 14:34:13,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:34:13,761 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 2 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:13,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 377 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2025-02-06 14:34:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2025-02-06 14:34:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 71 states have (on average 1.7746478873239437) internal successors, (126), 125 states have internal predecessors, (126), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:34:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 132 transitions. [2025-02-06 14:34:13,767 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 132 transitions. Word has length 6 [2025-02-06 14:34:13,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:13,767 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 132 transitions. [2025-02-06 14:34:13,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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) [2025-02-06 14:34:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 132 transitions. [2025-02-06 14:34:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-02-06 14:34:13,768 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:13,768 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:13,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 14:34:13,768 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_0_to_41_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:13,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:13,768 INFO L85 PathProgramCache]: Analyzing trace with hash -949913681, now seen corresponding path program 1 times [2025-02-06 14:34:13,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:13,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749918508] [2025-02-06 14:34:13,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:13,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:13,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 14:34:13,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 14:34:13,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:13,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:13,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2004173478] [2025-02-06 14:34:13,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:13,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:13,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:13,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:13,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 14:34:13,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 14:34:13,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 14:34:13,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:13,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:13,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-02-06 14:34:13,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:13,922 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 [2025-02-06 14:34:13,925 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 [2025-02-06 14:34:13,954 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 7 treesize of output 3 [2025-02-06 14:34:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:13,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:13,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:13,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749918508] [2025-02-06 14:34:13,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:13,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004173478] [2025-02-06 14:34:13,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004173478] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:13,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:13,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:13,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444915045] [2025-02-06 14:34:13,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:13,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:13,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:13,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:13,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:13,962 INFO L87 Difference]: Start difference. First operand 130 states and 132 transitions. Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:14,045 INFO L93 Difference]: Finished difference Result 208 states and 213 transitions. [2025-02-06 14:34:14,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-02-06 14:34:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:14,046 INFO L225 Difference]: With dead ends: 208 [2025-02-06 14:34:14,047 INFO L226 Difference]: Without dead ends: 206 [2025-02-06 14:34:14,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:14,047 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 144 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:14,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 600 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2025-02-06 14:34:14,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 155. [2025-02-06 14:34:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 94 states have (on average 1.7659574468085106) internal successors, (166), 148 states have internal predecessors, (166), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2025-02-06 14:34:14,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 175 transitions. [2025-02-06 14:34:14,058 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 175 transitions. Word has length 10 [2025-02-06 14:34:14,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:14,058 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 175 transitions. [2025-02-06 14:34:14,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:14,058 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 175 transitions. [2025-02-06 14:34:14,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-02-06 14:34:14,058 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:14,058 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:14,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:14,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:14,260 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_0_to_41_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:14,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:14,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1960987885, now seen corresponding path program 1 times [2025-02-06 14:34:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:14,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844451256] [2025-02-06 14:34:14,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:14,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:14,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 14:34:14,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 14:34:14,278 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:14,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:14,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16509183] [2025-02-06 14:34:14,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:14,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:14,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:14,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:14,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 14:34:14,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-06 14:34:14,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-06 14:34:14,364 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:14,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:14,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-06 14:34:14,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:14,370 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 [2025-02-06 14:34:14,373 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 [2025-02-06 14:34:14,397 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 7 treesize of output 3 [2025-02-06 14:34:14,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:14,403 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:14,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844451256] [2025-02-06 14:34:14,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16509183] [2025-02-06 14:34:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16509183] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:14,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:14,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:14,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367555131] [2025-02-06 14:34:14,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:14,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:14,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:14,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:14,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:14,405 INFO L87 Difference]: Start difference. First operand 155 states and 175 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:14,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:14,490 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2025-02-06 14:34:14,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:34:14,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-02-06 14:34:14,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:14,492 INFO L225 Difference]: With dead ends: 268 [2025-02-06 14:34:14,492 INFO L226 Difference]: Without dead ends: 266 [2025-02-06 14:34:14,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:14,493 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 175 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:14,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 603 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2025-02-06 14:34:14,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 191. [2025-02-06 14:34:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.746031746031746) internal successors, (220), 181 states have internal predecessors, (220), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 236 transitions. [2025-02-06 14:34:14,502 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 236 transitions. Word has length 12 [2025-02-06 14:34:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:14,503 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 236 transitions. [2025-02-06 14:34:14,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 236 transitions. [2025-02-06 14:34:14,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-02-06 14:34:14,503 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:14,503 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:14,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:14,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:14,707 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_0_to_41_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:14,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:14,708 INFO L85 PathProgramCache]: Analyzing trace with hash -981284309, now seen corresponding path program 1 times [2025-02-06 14:34:14,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:14,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919207767] [2025-02-06 14:34:14,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:14,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:14,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 14:34:14,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 14:34:14,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:14,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:14,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566216108] [2025-02-06 14:34:14,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:14,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:14,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:14,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:14,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 14:34:14,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-02-06 14:34:14,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-02-06 14:34:14,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:14,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:14,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-06 14:34:14,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:14,825 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 [2025-02-06 14:34:14,857 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 [2025-02-06 14:34:14,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:14,876 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:14,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919207767] [2025-02-06 14:34:14,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566216108] [2025-02-06 14:34:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566216108] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:14,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:14,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:34:14,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111885683] [2025-02-06 14:34:14,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:14,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:34:14,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:14,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:34:14,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:14,877 INFO L87 Difference]: Start difference. First operand 191 states and 236 transitions. Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:15,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:15,034 INFO L93 Difference]: Finished difference Result 245 states and 283 transitions. [2025-02-06 14:34:15,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:34:15,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-02-06 14:34:15,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:15,035 INFO L225 Difference]: With dead ends: 245 [2025-02-06 14:34:15,035 INFO L226 Difference]: Without dead ends: 244 [2025-02-06 14:34:15,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:34:15,036 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 218 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:15,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 761 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2025-02-06 14:34:15,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 191. [2025-02-06 14:34:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.7380952380952381) internal successors, (219), 181 states have internal predecessors, (219), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:15,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 235 transitions. [2025-02-06 14:34:15,043 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 235 transitions. Word has length 14 [2025-02-06 14:34:15,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:15,044 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 235 transitions. [2025-02-06 14:34:15,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:15,044 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 235 transitions. [2025-02-06 14:34:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-06 14:34:15,044 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:15,044 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:15,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:15,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:15,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_0_to_41_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:15,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash -355042475, now seen corresponding path program 1 times [2025-02-06 14:34:15,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:15,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061346446] [2025-02-06 14:34:15,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:15,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:15,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 14:34:15,264 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 14:34:15,264 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:15,264 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:15,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [79645157] [2025-02-06 14:34:15,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:15,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:15,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:15,267 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:15,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 14:34:15,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-06 14:34:15,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-06 14:34:15,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:15,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:15,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-02-06 14:34:15,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:15,356 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 [2025-02-06 14:34:15,358 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 [2025-02-06 14:34:15,379 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 7 treesize of output 3 [2025-02-06 14:34:15,387 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 [2025-02-06 14:34:15,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:15,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:15,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:15,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061346446] [2025-02-06 14:34:15,405 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:15,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79645157] [2025-02-06 14:34:15,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79645157] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:15,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:15,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:34:15,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344261194] [2025-02-06 14:34:15,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:15,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:34:15,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:15,406 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:34:15,406 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:15,406 INFO L87 Difference]: Start difference. First operand 191 states and 235 transitions. Second operand has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:15,564 INFO L93 Difference]: Finished difference Result 244 states and 282 transitions. [2025-02-06 14:34:15,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:34:15,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-02-06 14:34:15,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:15,566 INFO L225 Difference]: With dead ends: 244 [2025-02-06 14:34:15,566 INFO L226 Difference]: Without dead ends: 243 [2025-02-06 14:34:15,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:34:15,567 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 214 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:15,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 764 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:15,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2025-02-06 14:34:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 191. [2025-02-06 14:34:15,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.7301587301587302) internal successors, (218), 181 states have internal predecessors, (218), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:15,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 234 transitions. [2025-02-06 14:34:15,575 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 234 transitions. Word has length 15 [2025-02-06 14:34:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:15,575 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 234 transitions. [2025-02-06 14:34:15,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 234 transitions. [2025-02-06 14:34:15,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-02-06 14:34:15,576 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:15,576 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:15,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:15,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2025-02-06 14:34:15,780 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_0_to_41_0Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:15,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1878585193, now seen corresponding path program 1 times [2025-02-06 14:34:15,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:15,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917974479] [2025-02-06 14:34:15,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:15,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:15,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 14:34:15,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 14:34:15,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:15,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:15,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296694041] [2025-02-06 14:34:15,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:15,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:15,803 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:15,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 14:34:15,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 14:34:15,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 14:34:15,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:15,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:15,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 14:34:15,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:15,886 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 [2025-02-06 14:34:15,911 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 [2025-02-06 14:34:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:15,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:15,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917974479] [2025-02-06 14:34:15,928 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:15,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296694041] [2025-02-06 14:34:15,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296694041] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:15,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:15,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:34:15,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379964462] [2025-02-06 14:34:15,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:15,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:34:15,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:15,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:34:15,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:15,929 INFO L87 Difference]: Start difference. First operand 191 states and 234 transitions. Second operand has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:16,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:16,085 INFO L93 Difference]: Finished difference Result 272 states and 294 transitions. [2025-02-06 14:34:16,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:34:16,086 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-02-06 14:34:16,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:16,087 INFO L225 Difference]: With dead ends: 272 [2025-02-06 14:34:16,087 INFO L226 Difference]: Without dead ends: 270 [2025-02-06 14:34:16,087 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:34:16,088 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 249 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:16,088 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 766 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:16,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2025-02-06 14:34:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 191. [2025-02-06 14:34:16,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6984126984126984) internal successors, (214), 181 states have internal predecessors, (214), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:16,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2025-02-06 14:34:16,094 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 16 [2025-02-06 14:34:16,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:16,094 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2025-02-06 14:34:16,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:16,094 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2025-02-06 14:34:16,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-06 14:34:16,094 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:16,094 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:16,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-06 14:34:16,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:16,295 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_0_to_41_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:16,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:16,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1434107047, now seen corresponding path program 1 times [2025-02-06 14:34:16,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:16,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505450766] [2025-02-06 14:34:16,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:16,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:16,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 14:34:16,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 14:34:16,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:16,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:16,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1546441439] [2025-02-06 14:34:16,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:16,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:16,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:16,313 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:16,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 14:34:16,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-06 14:34:16,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-06 14:34:16,394 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:16,394 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:16,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 55 conjuncts are in the unsatisfiable core [2025-02-06 14:34:16,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:16,400 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 [2025-02-06 14:34:16,403 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 [2025-02-06 14:34:16,406 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 [2025-02-06 14:34:16,438 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 7 treesize of output 3 [2025-02-06 14:34:16,452 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 [2025-02-06 14:34:16,468 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 [2025-02-06 14:34:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:16,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:16,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505450766] [2025-02-06 14:34:16,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:16,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546441439] [2025-02-06 14:34:16,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546441439] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:16,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:16,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 14:34:16,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430504929] [2025-02-06 14:34:16,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:16,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:34:16,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:16,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:34:16,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:34:16,497 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:16,744 INFO L93 Difference]: Finished difference Result 236 states and 266 transitions. [2025-02-06 14:34:16,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:34:16,744 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2025-02-06 14:34:16,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:16,746 INFO L225 Difference]: With dead ends: 236 [2025-02-06 14:34:16,746 INFO L226 Difference]: Without dead ends: 234 [2025-02-06 14:34:16,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-02-06 14:34:16,746 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 152 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:16,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 807 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:16,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-02-06 14:34:16,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 191. [2025-02-06 14:34:16,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6825396825396826) internal successors, (212), 181 states have internal predecessors, (212), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 228 transitions. [2025-02-06 14:34:16,752 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 228 transitions. Word has length 18 [2025-02-06 14:34:16,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:16,752 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 228 transitions. [2025-02-06 14:34:16,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 228 transitions. [2025-02-06 14:34:16,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 14:34:16,753 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:16,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:16,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 14:34:16,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 14:34:16,957 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_0_to_41_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:16,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:16,958 INFO L85 PathProgramCache]: Analyzing trace with hash -507629083, now seen corresponding path program 1 times [2025-02-06 14:34:16,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:16,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072867586] [2025-02-06 14:34:16,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:16,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:16,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 14:34:16,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 14:34:16,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:16,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:16,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8902656] [2025-02-06 14:34:16,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:16,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:16,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:16,979 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:16,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 14:34:17,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 14:34:17,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 14:34:17,061 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:17,061 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:17,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 70 conjuncts are in the unsatisfiable core [2025-02-06 14:34:17,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:17,079 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 [2025-02-06 14:34:17,081 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 [2025-02-06 14:34:17,091 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 [2025-02-06 14:34:17,095 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 [2025-02-06 14:34:17,140 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 7 treesize of output 3 [2025-02-06 14:34:17,157 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 [2025-02-06 14:34:17,182 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 [2025-02-06 14:34:17,230 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 [2025-02-06 14:34:17,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:17,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:17,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:17,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072867586] [2025-02-06 14:34:17,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:17,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8902656] [2025-02-06 14:34:17,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8902656] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:17,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:17,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:34:17,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064045896] [2025-02-06 14:34:17,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:17,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:34:17,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:17,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:34:17,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:34:17,245 INFO L87 Difference]: Start difference. First operand 191 states and 228 transitions. Second operand has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:17,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:17,614 INFO L93 Difference]: Finished difference Result 234 states and 264 transitions. [2025-02-06 14:34:17,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:34:17,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2025-02-06 14:34:17,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:17,616 INFO L225 Difference]: With dead ends: 234 [2025-02-06 14:34:17,616 INFO L226 Difference]: Without dead ends: 233 [2025-02-06 14:34:17,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2025-02-06 14:34:17,616 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 184 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:17,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 865 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:17,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2025-02-06 14:34:17,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 191. [2025-02-06 14:34:17,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6746031746031746) internal successors, (211), 181 states have internal predecessors, (211), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 227 transitions. [2025-02-06 14:34:17,623 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 227 transitions. Word has length 20 [2025-02-06 14:34:17,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:17,623 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 227 transitions. [2025-02-06 14:34:17,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.111111111111111) internal successors, (19), 10 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:17,623 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 227 transitions. [2025-02-06 14:34:17,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-02-06 14:34:17,624 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:17,624 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:17,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:17,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:17,828 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_0_to_41_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:17,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1443367631, now seen corresponding path program 1 times [2025-02-06 14:34:17,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:17,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858831755] [2025-02-06 14:34:17,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:17,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:17,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 14:34:17,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 14:34:17,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:17,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:17,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923441375] [2025-02-06 14:34:17,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:17,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:17,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:17,849 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:17,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 14:34:17,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-02-06 14:34:17,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-02-06 14:34:17,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:17,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:17,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-02-06 14:34:17,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:17,953 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 [2025-02-06 14:34:17,955 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 [2025-02-06 14:34:17,967 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 [2025-02-06 14:34:17,971 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 [2025-02-06 14:34:18,023 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 7 treesize of output 3 [2025-02-06 14:34:18,047 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 [2025-02-06 14:34:18,073 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 [2025-02-06 14:34:18,132 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 17 treesize of output 9 [2025-02-06 14:34:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:18,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:18,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:18,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858831755] [2025-02-06 14:34:18,154 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:18,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923441375] [2025-02-06 14:34:18,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923441375] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:18,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:18,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:34:18,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884959290] [2025-02-06 14:34:18,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:18,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:34:18,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:18,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:34:18,155 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:34:18,156 INFO L87 Difference]: Start difference. First operand 191 states and 227 transitions. Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:18,521 INFO L93 Difference]: Finished difference Result 233 states and 263 transitions. [2025-02-06 14:34:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:34:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2025-02-06 14:34:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:18,522 INFO L225 Difference]: With dead ends: 233 [2025-02-06 14:34:18,522 INFO L226 Difference]: Without dead ends: 232 [2025-02-06 14:34:18,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2025-02-06 14:34:18,523 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 177 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:18,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 942 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:18,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-02-06 14:34:18,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 191. [2025-02-06 14:34:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 126 states have (on average 1.6666666666666667) internal successors, (210), 181 states have internal predecessors, (210), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:18,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 226 transitions. [2025-02-06 14:34:18,530 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 226 transitions. Word has length 21 [2025-02-06 14:34:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:18,531 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 226 transitions. [2025-02-06 14:34:18,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:18,531 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 226 transitions. [2025-02-06 14:34:18,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2025-02-06 14:34:18,531 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:18,531 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:18,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:18,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:18,736 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_0_to_41_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:18,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:18,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1794723619, now seen corresponding path program 1 times [2025-02-06 14:34:18,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:18,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728607838] [2025-02-06 14:34:18,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:18,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:18,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 14:34:18,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 14:34:18,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:18,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:18,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:18,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:18,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728607838] [2025-02-06 14:34:18,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728607838] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:18,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:18,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:18,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566980200] [2025-02-06 14:34:18,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:18,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:18,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:18,880 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:18,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:18,880 INFO L87 Difference]: Start difference. First operand 191 states and 226 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:18,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:18,962 INFO L93 Difference]: Finished difference Result 191 states and 226 transitions. [2025-02-06 14:34:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:18,962 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2025-02-06 14:34:18,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:18,964 INFO L225 Difference]: With dead ends: 191 [2025-02-06 14:34:18,964 INFO L226 Difference]: Without dead ends: 190 [2025-02-06 14:34:18,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:18,965 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 161 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:18,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 398 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:18,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2025-02-06 14:34:18,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2025-02-06 14:34:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 126 states have (on average 1.6428571428571428) internal successors, (207), 180 states have internal predecessors, (207), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:18,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions. [2025-02-06 14:34:18,976 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 22 [2025-02-06 14:34:18,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:18,976 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 223 transitions. [2025-02-06 14:34:18,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:18,976 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2025-02-06 14:34:18,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-02-06 14:34:18,976 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:18,976 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:18,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 14:34:18,976 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_0_to_41_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:18,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:18,977 INFO L85 PathProgramCache]: Analyzing trace with hash -198142643, now seen corresponding path program 1 times [2025-02-06 14:34:18,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:18,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853093398] [2025-02-06 14:34:18,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:18,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:18,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 14:34:18,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 14:34:18,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:18,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:19,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:19,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:19,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853093398] [2025-02-06 14:34:19,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853093398] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:19,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:19,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:19,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060351844] [2025-02-06 14:34:19,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:19,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:19,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:19,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:19,082 INFO L87 Difference]: Start difference. First operand 190 states and 223 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:19,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:19,149 INFO L93 Difference]: Finished difference Result 190 states and 223 transitions. [2025-02-06 14:34:19,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:19,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2025-02-06 14:34:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:19,150 INFO L225 Difference]: With dead ends: 190 [2025-02-06 14:34:19,151 INFO L226 Difference]: Without dead ends: 189 [2025-02-06 14:34:19,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:19,151 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 158 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:19,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 398 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:19,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2025-02-06 14:34:19,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2025-02-06 14:34:19,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.619047619047619) internal successors, (204), 179 states have internal predecessors, (204), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:19,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 220 transitions. [2025-02-06 14:34:19,160 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 220 transitions. Word has length 23 [2025-02-06 14:34:19,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:19,161 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 220 transitions. [2025-02-06 14:34:19,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:19,161 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 220 transitions. [2025-02-06 14:34:19,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2025-02-06 14:34:19,161 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:19,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:19,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 14:34:19,161 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_0_to_41_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:19,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:19,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1847454623, now seen corresponding path program 1 times [2025-02-06 14:34:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:19,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042678193] [2025-02-06 14:34:19,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:19,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:19,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:34:19,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:34:19,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:19,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:19,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899996750] [2025-02-06 14:34:19,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:19,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:19,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:19,190 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:19,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-06 14:34:19,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 14:34:19,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 14:34:19,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:19,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:19,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 67 conjuncts are in the unsatisfiable core [2025-02-06 14:34:19,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:19,302 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 [2025-02-06 14:34:19,304 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 [2025-02-06 14:34:19,321 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 [2025-02-06 14:34:19,331 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 [2025-02-06 14:34:19,411 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 [2025-02-06 14:34:19,443 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 [2025-02-06 14:34:19,508 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 [2025-02-06 14:34:19,534 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 17 treesize of output 9 [2025-02-06 14:34:19,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:19,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:19,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:19,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042678193] [2025-02-06 14:34:19,573 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:19,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899996750] [2025-02-06 14:34:19,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899996750] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:19,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:19,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 14:34:19,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840420236] [2025-02-06 14:34:19,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:19,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 14:34:19,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:19,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 14:34:19,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:34:19,574 INFO L87 Difference]: Start difference. First operand 189 states and 220 transitions. Second operand has 12 states, 10 states have (on average 2.3) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:19,993 INFO L93 Difference]: Finished difference Result 228 states and 256 transitions. [2025-02-06 14:34:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:34:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.3) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2025-02-06 14:34:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:19,994 INFO L225 Difference]: With dead ends: 228 [2025-02-06 14:34:19,994 INFO L226 Difference]: Without dead ends: 227 [2025-02-06 14:34:19,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:34:19,995 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 173 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 911 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:19,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 911 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:19,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2025-02-06 14:34:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 189. [2025-02-06 14:34:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.6111111111111112) internal successors, (203), 179 states have internal predecessors, (203), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:20,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 219 transitions. [2025-02-06 14:34:20,000 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 219 transitions. Word has length 24 [2025-02-06 14:34:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:20,001 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 219 transitions. [2025-02-06 14:34:20,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.3) internal successors, (23), 11 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:20,001 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 219 transitions. [2025-02-06 14:34:20,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2025-02-06 14:34:20,001 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:20,001 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:20,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:20,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:20,202 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_0_to_41_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:20,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1436518453, now seen corresponding path program 1 times [2025-02-06 14:34:20,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:20,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039156736] [2025-02-06 14:34:20,203 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:20,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 14:34:20,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 14:34:20,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:20,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:20,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934117526] [2025-02-06 14:34:20,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:20,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:20,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:20,221 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:20,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-06 14:34:20,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 14:34:20,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 14:34:20,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:20,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:20,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 69 conjuncts are in the unsatisfiable core [2025-02-06 14:34:20,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:20,335 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 [2025-02-06 14:34:20,341 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 [2025-02-06 14:34:20,362 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 [2025-02-06 14:34:20,366 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 [2025-02-06 14:34:20,458 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 [2025-02-06 14:34:20,498 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 [2025-02-06 14:34:20,574 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 17 treesize of output 9 [2025-02-06 14:34:20,605 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 [2025-02-06 14:34:20,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:20,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:20,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:20,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039156736] [2025-02-06 14:34:20,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:20,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934117526] [2025-02-06 14:34:20,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934117526] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:20,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:20,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-06 14:34:20,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081484425] [2025-02-06 14:34:20,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:20,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 14:34:20,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:20,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 14:34:20,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:34:20,641 INFO L87 Difference]: Start difference. First operand 189 states and 219 transitions. Second operand has 12 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:21,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:21,095 INFO L93 Difference]: Finished difference Result 227 states and 255 transitions. [2025-02-06 14:34:21,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:34:21,095 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2025-02-06 14:34:21,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:21,096 INFO L225 Difference]: With dead ends: 227 [2025-02-06 14:34:21,096 INFO L226 Difference]: Without dead ends: 226 [2025-02-06 14:34:21,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:34:21,097 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 170 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 915 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:21,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 915 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:34:21,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-02-06 14:34:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 189. [2025-02-06 14:34:21,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.6031746031746033) internal successors, (202), 179 states have internal predecessors, (202), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:21,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 218 transitions. [2025-02-06 14:34:21,103 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 218 transitions. Word has length 25 [2025-02-06 14:34:21,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:21,103 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 218 transitions. [2025-02-06 14:34:21,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 2.4) internal successors, (24), 11 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:21,103 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 218 transitions. [2025-02-06 14:34:21,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2025-02-06 14:34:21,103 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:21,103 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:21,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-06 14:34:21,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-06 14:34:21,305 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_0_to_41_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:21,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:21,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1582399073, now seen corresponding path program 1 times [2025-02-06 14:34:21,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:21,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380583723] [2025-02-06 14:34:21,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:21,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 14:34:21,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 14:34:21,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:21,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:21,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:21,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380583723] [2025-02-06 14:34:21,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380583723] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:21,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:21,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:34:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461143618] [2025-02-06 14:34:21,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:21,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:34:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:21,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:34:21,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:34:21,715 INFO L87 Difference]: Start difference. First operand 189 states and 218 transitions. Second operand has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:21,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:21,989 INFO L93 Difference]: Finished difference Result 233 states and 261 transitions. [2025-02-06 14:34:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:34:21,989 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2025-02-06 14:34:21,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:21,990 INFO L225 Difference]: With dead ends: 233 [2025-02-06 14:34:21,990 INFO L226 Difference]: Without dead ends: 232 [2025-02-06 14:34:21,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2025-02-06 14:34:21,990 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 124 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:21,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 942 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2025-02-06 14:34:21,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 189. [2025-02-06 14:34:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.5952380952380953) internal successors, (201), 179 states have internal predecessors, (201), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:21,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 217 transitions. [2025-02-06 14:34:21,996 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 217 transitions. Word has length 26 [2025-02-06 14:34:21,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:21,996 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 217 transitions. [2025-02-06 14:34:21,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 10 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:21,997 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 217 transitions. [2025-02-06 14:34:21,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-02-06 14:34:21,997 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:21,997 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:21,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 14:34:21,997 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_0_to_41_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:21,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:21,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1809730999, now seen corresponding path program 1 times [2025-02-06 14:34:21,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:21,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478270322] [2025-02-06 14:34:21,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:21,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:22,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-06 14:34:22,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-06 14:34:22,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:22,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:22,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478270322] [2025-02-06 14:34:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478270322] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:22,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:22,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 14:34:22,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003892183] [2025-02-06 14:34:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:22,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:34:22,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:22,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:34:22,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:34:22,342 INFO L87 Difference]: Start difference. First operand 189 states and 217 transitions. Second operand has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:22,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:22,591 INFO L93 Difference]: Finished difference Result 232 states and 260 transitions. [2025-02-06 14:34:22,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:34:22,591 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2025-02-06 14:34:22,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:22,592 INFO L225 Difference]: With dead ends: 232 [2025-02-06 14:34:22,592 INFO L226 Difference]: Without dead ends: 231 [2025-02-06 14:34:22,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:34:22,592 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 110 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:22,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 870 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:22,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2025-02-06 14:34:22,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 189. [2025-02-06 14:34:22,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 126 states have (on average 1.5873015873015872) internal successors, (200), 179 states have internal predecessors, (200), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:22,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 216 transitions. [2025-02-06 14:34:22,598 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 216 transitions. Word has length 27 [2025-02-06 14:34:22,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:22,599 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 216 transitions. [2025-02-06 14:34:22,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 3.25) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 14:34:22,599 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 216 transitions. [2025-02-06 14:34:22,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 14:34:22,600 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:22,600 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:22,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-02-06 14:34:22,600 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_0_to_41_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:22,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:22,600 INFO L85 PathProgramCache]: Analyzing trace with hash -120183635, now seen corresponding path program 1 times [2025-02-06 14:34:22,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:22,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123139398] [2025-02-06 14:34:22,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:22,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:22,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 14:34:22,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 14:34:22,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:22,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:22,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123139398] [2025-02-06 14:34:22,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123139398] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:22,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:22,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:22,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888489574] [2025-02-06 14:34:22,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:22,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:22,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:22,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:22,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:22,741 INFO L87 Difference]: Start difference. First operand 189 states and 216 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 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) [2025-02-06 14:34:22,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:22,796 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2025-02-06 14:34:22,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:22,797 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 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 36 [2025-02-06 14:34:22,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:22,798 INFO L225 Difference]: With dead ends: 189 [2025-02-06 14:34:22,798 INFO L226 Difference]: Without dead ends: 188 [2025-02-06 14:34:22,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:22,798 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 145 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:22,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 406 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:22,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2025-02-06 14:34:22,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2025-02-06 14:34:22,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 126 states have (on average 1.5714285714285714) internal successors, (198), 178 states have internal predecessors, (198), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 214 transitions. [2025-02-06 14:34:22,815 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 214 transitions. Word has length 36 [2025-02-06 14:34:22,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:22,816 INFO L471 AbstractCegarLoop]: Abstraction has 188 states and 214 transitions. [2025-02-06 14:34:22,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 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) [2025-02-06 14:34:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 214 transitions. [2025-02-06 14:34:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-02-06 14:34:22,816 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:22,816 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:22,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 14:34:22,816 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_0_to_41_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:22,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:22,817 INFO L85 PathProgramCache]: Analyzing trace with hash -120183091, now seen corresponding path program 1 times [2025-02-06 14:34:22,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:22,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998069641] [2025-02-06 14:34:22,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:22,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:22,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-02-06 14:34:22,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-02-06 14:34:22,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:22,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:23,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:23,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998069641] [2025-02-06 14:34:23,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998069641] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:23,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:23,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 14:34:23,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062336716] [2025-02-06 14:34:23,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:23,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:34:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:23,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:34:23,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:34:23,175 INFO L87 Difference]: Start difference. First operand 188 states and 214 transitions. Second operand has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 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) [2025-02-06 14:34:23,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:23,347 INFO L93 Difference]: Finished difference Result 229 states and 256 transitions. [2025-02-06 14:34:23,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:34:23,347 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 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 36 [2025-02-06 14:34:23,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:23,348 INFO L225 Difference]: With dead ends: 229 [2025-02-06 14:34:23,348 INFO L226 Difference]: Without dead ends: 227 [2025-02-06 14:34:23,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:34:23,348 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 88 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:23,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 792 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2025-02-06 14:34:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 192. [2025-02-06 14:34:23,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 130 states have (on average 1.5692307692307692) internal successors, (204), 182 states have internal predecessors, (204), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:23,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 220 transitions. [2025-02-06 14:34:23,359 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 220 transitions. Word has length 36 [2025-02-06 14:34:23,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:23,359 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 220 transitions. [2025-02-06 14:34:23,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 2 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) [2025-02-06 14:34:23,359 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 220 transitions. [2025-02-06 14:34:23,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-06 14:34:23,361 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:23,361 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:23,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-06 14:34:23,362 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_0_to_41_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:23,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:23,362 INFO L85 PathProgramCache]: Analyzing trace with hash 569274591, now seen corresponding path program 1 times [2025-02-06 14:34:23,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:23,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722879287] [2025-02-06 14:34:23,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:23,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:23,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 14:34:23,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 14:34:23,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:23,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:23,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:23,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:23,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722879287] [2025-02-06 14:34:23,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722879287] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:23,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:23,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659534043] [2025-02-06 14:34:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:23,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:23,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:23,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:23,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:23,485 INFO L87 Difference]: Start difference. First operand 192 states and 220 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 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) [2025-02-06 14:34:23,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:23,537 INFO L93 Difference]: Finished difference Result 192 states and 220 transitions. [2025-02-06 14:34:23,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:23,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 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 37 [2025-02-06 14:34:23,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:23,538 INFO L225 Difference]: With dead ends: 192 [2025-02-06 14:34:23,538 INFO L226 Difference]: Without dead ends: 191 [2025-02-06 14:34:23,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:23,539 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 142 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:23,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 406 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:23,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2025-02-06 14:34:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2025-02-06 14:34:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 130 states have (on average 1.5538461538461539) internal successors, (202), 181 states have internal predecessors, (202), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2025-02-06 14:34:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 218 transitions. [2025-02-06 14:34:23,544 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 218 transitions. Word has length 37 [2025-02-06 14:34:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:23,545 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 218 transitions. [2025-02-06 14:34:23,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 2 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) [2025-02-06 14:34:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 218 transitions. [2025-02-06 14:34:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2025-02-06 14:34:23,546 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:23,546 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:23,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-06 14:34:23,546 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_0_to_41_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:23,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 569291472, now seen corresponding path program 1 times [2025-02-06 14:34:23,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:23,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538590956] [2025-02-06 14:34:23,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:23,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:23,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-02-06 14:34:23,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-02-06 14:34:23,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:23,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:23,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:23,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:23,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538590956] [2025-02-06 14:34:23,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538590956] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:23,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:23,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 14:34:23,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747336654] [2025-02-06 14:34:23,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:23,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:34:23,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:23,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:34:23,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:34:23,844 INFO L87 Difference]: Start difference. First operand 191 states and 218 transitions. Second operand has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 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) [2025-02-06 14:34:24,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:24,034 INFO L93 Difference]: Finished difference Result 227 states and 257 transitions. [2025-02-06 14:34:24,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:34:24,036 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 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 37 [2025-02-06 14:34:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:24,037 INFO L225 Difference]: With dead ends: 227 [2025-02-06 14:34:24,037 INFO L226 Difference]: Without dead ends: 225 [2025-02-06 14:34:24,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:34:24,038 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 135 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:24,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 812 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:24,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2025-02-06 14:34:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 208. [2025-02-06 14:34:24,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 145 states have (on average 1.5586206896551724) internal successors, (226), 198 states have internal predecessors, (226), 8 states have call successors, (8), 4 states have call predecessors, (8), 5 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2025-02-06 14:34:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 246 transitions. [2025-02-06 14:34:24,047 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 246 transitions. Word has length 37 [2025-02-06 14:34:24,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:24,047 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 246 transitions. [2025-02-06 14:34:24,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 2 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) [2025-02-06 14:34:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 246 transitions. [2025-02-06 14:34:24,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 14:34:24,049 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:24,049 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:24,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-06 14:34:24,049 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:24,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:24,049 INFO L85 PathProgramCache]: Analyzing trace with hash 467812151, now seen corresponding path program 1 times [2025-02-06 14:34:24,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:24,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719325548] [2025-02-06 14:34:24,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:24,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:24,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 14:34:24,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 14:34:24,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:24,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:24,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1277925435] [2025-02-06 14:34:24,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:24,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:24,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:24,070 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:24,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-06 14:34:24,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 14:34:24,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 14:34:24,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:24,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:24,170 INFO L256 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-06 14:34:24,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:24,174 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 [2025-02-06 14:34:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:24,209 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:24,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:24,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719325548] [2025-02-06 14:34:24,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:24,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277925435] [2025-02-06 14:34:24,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277925435] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:24,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:24,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:34:24,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124468557] [2025-02-06 14:34:24,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:24,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:34:24,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:24,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:34:24,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:34:24,211 INFO L87 Difference]: Start difference. First operand 208 states and 246 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:24,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:24,269 INFO L93 Difference]: Finished difference Result 255 states and 298 transitions. [2025-02-06 14:34:24,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:34:24,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2025-02-06 14:34:24,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:24,271 INFO L225 Difference]: With dead ends: 255 [2025-02-06 14:34:24,271 INFO L226 Difference]: Without dead ends: 253 [2025-02-06 14:34:24,271 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:24,271 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 83 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:24,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 392 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:24,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-02-06 14:34:24,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 219. [2025-02-06 14:34:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 153 states have (on average 1.542483660130719) internal successors, (236), 206 states have internal predecessors, (236), 9 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2025-02-06 14:34:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 264 transitions. [2025-02-06 14:34:24,282 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 264 transitions. Word has length 38 [2025-02-06 14:34:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:24,282 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 264 transitions. [2025-02-06 14:34:24,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 264 transitions. [2025-02-06 14:34:24,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2025-02-06 14:34:24,283 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:24,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:24,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:24,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-02-06 14:34:24,484 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_0_to_41_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:24,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash 467643115, now seen corresponding path program 1 times [2025-02-06 14:34:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:24,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046758985] [2025-02-06 14:34:24,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:24,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 14:34:24,500 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 14:34:24,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:24,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:24,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:24,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046758985] [2025-02-06 14:34:24,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046758985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:24,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:24,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:34:24,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308273796] [2025-02-06 14:34:24,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:24,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:34:24,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:24,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:34:24,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:24,866 INFO L87 Difference]: Start difference. First operand 219 states and 264 transitions. Second operand has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 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) [2025-02-06 14:34:25,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:25,011 INFO L93 Difference]: Finished difference Result 248 states and 289 transitions. [2025-02-06 14:34:25,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:34:25,012 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 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 38 [2025-02-06 14:34:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:25,013 INFO L225 Difference]: With dead ends: 248 [2025-02-06 14:34:25,013 INFO L226 Difference]: Without dead ends: 247 [2025-02-06 14:34:25,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:34:25,014 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 77 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:25,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 737 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2025-02-06 14:34:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 219. [2025-02-06 14:34:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 153 states have (on average 1.5359477124183007) internal successors, (235), 206 states have internal predecessors, (235), 9 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2025-02-06 14:34:25,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 263 transitions. [2025-02-06 14:34:25,030 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 263 transitions. Word has length 38 [2025-02-06 14:34:25,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:25,030 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 263 transitions. [2025-02-06 14:34:25,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.833333333333333) internal successors, (35), 7 states have internal predecessors, (35), 2 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) [2025-02-06 14:34:25,030 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 263 transitions. [2025-02-06 14:34:25,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2025-02-06 14:34:25,031 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:25,031 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:25,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-06 14:34:25,031 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting func_to_recursive_line_0_to_41_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:25,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1612034653, now seen corresponding path program 1 times [2025-02-06 14:34:25,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504332648] [2025-02-06 14:34:25,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:25,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-02-06 14:34:25,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-02-06 14:34:25,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:25,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:25,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:25,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:25,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504332648] [2025-02-06 14:34:25,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504332648] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:25,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:25,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:34:25,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148347305] [2025-02-06 14:34:25,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:25,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:34:25,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:25,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:34:25,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:34:25,214 INFO L87 Difference]: Start difference. First operand 219 states and 263 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:25,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:25,241 INFO L93 Difference]: Finished difference Result 219 states and 263 transitions. [2025-02-06 14:34:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:34:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 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 39 [2025-02-06 14:34:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:25,243 INFO L225 Difference]: With dead ends: 219 [2025-02-06 14:34:25,243 INFO L226 Difference]: Without dead ends: 218 [2025-02-06 14:34:25,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:25,244 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 2 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:25,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 478 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2025-02-06 14:34:25,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2025-02-06 14:34:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 153 states have (on average 1.5163398692810457) internal successors, (232), 205 states have internal predecessors, (232), 9 states have call successors, (9), 4 states have call predecessors, (9), 7 states have return successors, (19), 10 states have call predecessors, (19), 9 states have call successors, (19) [2025-02-06 14:34:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 260 transitions. [2025-02-06 14:34:25,253 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 260 transitions. Word has length 39 [2025-02-06 14:34:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:25,253 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 260 transitions. [2025-02-06 14:34:25,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:25,253 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 260 transitions. [2025-02-06 14:34:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-06 14:34:25,254 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:25,254 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:25,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-06 14:34:25,254 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:25,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:25,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1404085995, now seen corresponding path program 1 times [2025-02-06 14:34:25,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:25,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629787951] [2025-02-06 14:34:25,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:25,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:25,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:34:25,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:34:25,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:25,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:25,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1866207207] [2025-02-06 14:34:25,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:25,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:25,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:25,275 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:25,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-06 14:34:25,349 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:34:25,380 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:34:25,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:25,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:25,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-02-06 14:34:25,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:25,386 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 [2025-02-06 14:34:25,388 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 [2025-02-06 14:34:25,476 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 7 treesize of output 3 [2025-02-06 14:34:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:25,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:25,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629787951] [2025-02-06 14:34:25,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866207207] [2025-02-06 14:34:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866207207] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:25,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:25,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:25,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978826222] [2025-02-06 14:34:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:25,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:25,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:25,488 INFO L87 Difference]: Start difference. First operand 218 states and 260 transitions. Second operand has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:25,548 INFO L93 Difference]: Finished difference Result 229 states and 273 transitions. [2025-02-06 14:34:25,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:25,549 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 40 [2025-02-06 14:34:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:25,550 INFO L225 Difference]: With dead ends: 229 [2025-02-06 14:34:25,550 INFO L226 Difference]: Without dead ends: 227 [2025-02-06 14:34:25,550 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:25,550 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 58 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:25,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 415 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:25,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2025-02-06 14:34:25,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2025-02-06 14:34:25,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 160 states have (on average 1.49375) internal successors, (239), 211 states have internal predecessors, (239), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:25,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 271 transitions. [2025-02-06 14:34:25,559 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 271 transitions. Word has length 40 [2025-02-06 14:34:25,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:25,559 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 271 transitions. [2025-02-06 14:34:25,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.2) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:25,560 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 271 transitions. [2025-02-06 14:34:25,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-06 14:34:25,560 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:25,560 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:25,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-06 14:34:25,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:25,761 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_0_to_41_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:25,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1063614583, now seen corresponding path program 1 times [2025-02-06 14:34:25,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:25,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704695826] [2025-02-06 14:34:25,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:25,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:25,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:34:25,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:34:25,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:25,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:25,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:25,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:25,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704695826] [2025-02-06 14:34:25,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704695826] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:25,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:25,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:34:25,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216299464] [2025-02-06 14:34:25,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:25,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:34:25,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:25,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:34:25,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:34:25,945 INFO L87 Difference]: Start difference. First operand 227 states and 271 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:25,976 INFO L93 Difference]: Finished difference Result 227 states and 271 transitions. [2025-02-06 14:34:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:34:25,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 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 40 [2025-02-06 14:34:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:25,978 INFO L225 Difference]: With dead ends: 227 [2025-02-06 14:34:25,978 INFO L226 Difference]: Without dead ends: 226 [2025-02-06 14:34:25,978 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:25,979 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 8 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:25,979 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 458 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:25,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-02-06 14:34:25,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2025-02-06 14:34:25,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 160 states have (on average 1.48125) internal successors, (237), 210 states have internal predecessors, (237), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:25,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 269 transitions. [2025-02-06 14:34:25,989 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 269 transitions. Word has length 40 [2025-02-06 14:34:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 269 transitions. [2025-02-06 14:34:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 269 transitions. [2025-02-06 14:34:25,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-02-06 14:34:25,989 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:25,989 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:25,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 14:34:25,990 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:25,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1317893125, now seen corresponding path program 1 times [2025-02-06 14:34:25,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:25,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093796467] [2025-02-06 14:34:25,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:25,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:25,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 14:34:26,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 14:34:26,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:26,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:26,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:26,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:26,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093796467] [2025-02-06 14:34:26,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093796467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:26,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:26,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:26,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567266181] [2025-02-06 14:34:26,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:26,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:26,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:26,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:26,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:26,087 INFO L87 Difference]: Start difference. First operand 226 states and 269 transitions. Second operand has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 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) [2025-02-06 14:34:26,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:26,149 INFO L93 Difference]: Finished difference Result 231 states and 269 transitions. [2025-02-06 14:34:26,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:26,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 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 41 [2025-02-06 14:34:26,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:26,151 INFO L225 Difference]: With dead ends: 231 [2025-02-06 14:34:26,151 INFO L226 Difference]: Without dead ends: 229 [2025-02-06 14:34:26,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:26,151 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 62 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:26,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 573 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:26,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2025-02-06 14:34:26,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226. [2025-02-06 14:34:26,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 160 states have (on average 1.45625) internal successors, (233), 210 states have internal predecessors, (233), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 265 transitions. [2025-02-06 14:34:26,162 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 265 transitions. Word has length 41 [2025-02-06 14:34:26,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:26,162 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 265 transitions. [2025-02-06 14:34:26,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 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) [2025-02-06 14:34:26,162 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 265 transitions. [2025-02-06 14:34:26,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-02-06 14:34:26,163 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:26,163 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:26,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 14:34:26,163 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting func_to_recursive_line_0_to_41_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:26,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:26,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1387686284, now seen corresponding path program 1 times [2025-02-06 14:34:26,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:26,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419490973] [2025-02-06 14:34:26,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:26,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:26,171 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-02-06 14:34:26,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-02-06 14:34:26,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:26,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:26,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:26,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419490973] [2025-02-06 14:34:26,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419490973] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:26,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:26,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 14:34:26,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227947847] [2025-02-06 14:34:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:26,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:34:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:26,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:34:26,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:34:26,546 INFO L87 Difference]: Start difference. First operand 226 states and 265 transitions. Second operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 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) [2025-02-06 14:34:26,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:26,772 INFO L93 Difference]: Finished difference Result 227 states and 265 transitions. [2025-02-06 14:34:26,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:34:26,772 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 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 41 [2025-02-06 14:34:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:26,773 INFO L225 Difference]: With dead ends: 227 [2025-02-06 14:34:26,773 INFO L226 Difference]: Without dead ends: 226 [2025-02-06 14:34:26,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:34:26,774 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 62 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:26,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 870 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:26,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2025-02-06 14:34:26,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2025-02-06 14:34:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 160 states have (on average 1.45) internal successors, (232), 210 states have internal predecessors, (232), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:26,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 264 transitions. [2025-02-06 14:34:26,782 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 264 transitions. Word has length 41 [2025-02-06 14:34:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:26,782 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 264 transitions. [2025-02-06 14:34:26,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 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) [2025-02-06 14:34:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 264 transitions. [2025-02-06 14:34:26,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-06 14:34:26,783 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:26,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:26,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-06 14:34:26,783 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:26,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:26,784 INFO L85 PathProgramCache]: Analyzing trace with hash -706907405, now seen corresponding path program 1 times [2025-02-06 14:34:26,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:26,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498527506] [2025-02-06 14:34:26,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:26,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:26,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:34:26,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:34:26,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:26,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:26,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996846299] [2025-02-06 14:34:26,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:26,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:26,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:26,800 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:26,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-06 14:34:26,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:34:26,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:34:26,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:26,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:26,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 14:34:26,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:26,909 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 [2025-02-06 14:34:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:26,956 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:26,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:26,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498527506] [2025-02-06 14:34:26,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:26,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996846299] [2025-02-06 14:34:26,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996846299] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:26,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:26,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:26,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764948121] [2025-02-06 14:34:26,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:26,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:26,958 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:26,958 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:26,958 INFO L87 Difference]: Start difference. First operand 226 states and 264 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:27,060 INFO L93 Difference]: Finished difference Result 252 states and 299 transitions. [2025-02-06 14:34:27,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:34:27,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 42 [2025-02-06 14:34:27,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:27,061 INFO L225 Difference]: With dead ends: 252 [2025-02-06 14:34:27,061 INFO L226 Difference]: Without dead ends: 250 [2025-02-06 14:34:27,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:27,062 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 69 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:27,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 382 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2025-02-06 14:34:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 228. [2025-02-06 14:34:27,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 162 states have (on average 1.4444444444444444) internal successors, (234), 212 states have internal predecessors, (234), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 266 transitions. [2025-02-06 14:34:27,073 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 266 transitions. Word has length 42 [2025-02-06 14:34:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:27,073 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 266 transitions. [2025-02-06 14:34:27,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 266 transitions. [2025-02-06 14:34:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-06 14:34:27,074 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:27,074 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:27,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:27,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:27,275 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting func_to_recursive_line_0_to_41_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:27,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:27,275 INFO L85 PathProgramCache]: Analyzing trace with hash 68601831, now seen corresponding path program 1 times [2025-02-06 14:34:27,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:27,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011676890] [2025-02-06 14:34:27,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:27,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:27,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:34:27,288 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:34:27,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:27,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:27,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:27,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011676890] [2025-02-06 14:34:27,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011676890] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:27,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:27,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:34:27,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987743054] [2025-02-06 14:34:27,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:27,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:34:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:27,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:34:27,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:34:27,375 INFO L87 Difference]: Start difference. First operand 228 states and 266 transitions. Second operand has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 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) [2025-02-06 14:34:27,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:27,435 INFO L93 Difference]: Finished difference Result 284 states and 307 transitions. [2025-02-06 14:34:27,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:34:27,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 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 42 [2025-02-06 14:34:27,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:27,437 INFO L225 Difference]: With dead ends: 284 [2025-02-06 14:34:27,437 INFO L226 Difference]: Without dead ends: 282 [2025-02-06 14:34:27,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:27,437 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 124 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:27,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 572 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:27,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2025-02-06 14:34:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 236. [2025-02-06 14:34:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 170 states have (on average 1.4411764705882353) internal successors, (245), 220 states have internal predecessors, (245), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 277 transitions. [2025-02-06 14:34:27,449 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 277 transitions. Word has length 42 [2025-02-06 14:34:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:27,449 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 277 transitions. [2025-02-06 14:34:27,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 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) [2025-02-06 14:34:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 277 transitions. [2025-02-06 14:34:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-06 14:34:27,450 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:27,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:27,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-06 14:34:27,451 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:27,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash -733180719, now seen corresponding path program 1 times [2025-02-06 14:34:27,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:27,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808560924] [2025-02-06 14:34:27,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:27,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:27,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 14:34:27,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 14:34:27,471 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:27,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:27,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [411663290] [2025-02-06 14:34:27,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:27,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:27,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:27,474 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:27,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-06 14:34:27,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 14:34:27,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 14:34:27,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:27,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:27,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 14:34:27,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:27,602 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 [2025-02-06 14:34:27,605 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 [2025-02-06 14:34:27,676 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 [2025-02-06 14:34:27,712 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 [2025-02-06 14:34:27,783 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 17 treesize of output 9 [2025-02-06 14:34:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:27,804 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:27,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:27,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808560924] [2025-02-06 14:34:27,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:27,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411663290] [2025-02-06 14:34:27,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411663290] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:27,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:27,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:34:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854780318] [2025-02-06 14:34:27,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:27,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:34:27,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:27,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:34:27,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:34:27,805 INFO L87 Difference]: Start difference. First operand 236 states and 277 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:28,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:28,036 INFO L93 Difference]: Finished difference Result 259 states and 308 transitions. [2025-02-06 14:34:28,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:34:28,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2025-02-06 14:34:28,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:28,037 INFO L225 Difference]: With dead ends: 259 [2025-02-06 14:34:28,037 INFO L226 Difference]: Without dead ends: 258 [2025-02-06 14:34:28,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:28,038 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 66 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:28,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 455 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2025-02-06 14:34:28,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 237. [2025-02-06 14:34:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 171 states have (on average 1.4385964912280702) internal successors, (246), 221 states have internal predecessors, (246), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2025-02-06 14:34:28,047 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 44 [2025-02-06 14:34:28,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:28,047 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2025-02-06 14:34:28,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2025-02-06 14:34:28,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-06 14:34:28,047 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:28,048 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:28,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-06 14:34:28,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2025-02-06 14:34:28,248 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:28,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:28,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1253765728, now seen corresponding path program 1 times [2025-02-06 14:34:28,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:28,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054009392] [2025-02-06 14:34:28,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:28,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:28,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:34:28,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:34:28,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:28,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:28,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960301526] [2025-02-06 14:34:28,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:28,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:28,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:28,273 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:28,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-06 14:34:28,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:34:28,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:34:28,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:28,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:28,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-06 14:34:28,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:28,400 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 [2025-02-06 14:34:28,439 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 [2025-02-06 14:34:28,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:28,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:28,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:28,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054009392] [2025-02-06 14:34:28,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:28,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960301526] [2025-02-06 14:34:28,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960301526] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:28,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:28,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:34:28,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578849819] [2025-02-06 14:34:28,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:28,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:34:28,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:28,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:34:28,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:34:28,458 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:28,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:28,592 INFO L93 Difference]: Finished difference Result 257 states and 307 transitions. [2025-02-06 14:34:28,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:34:28,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2025-02-06 14:34:28,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:28,593 INFO L225 Difference]: With dead ends: 257 [2025-02-06 14:34:28,593 INFO L226 Difference]: Without dead ends: 256 [2025-02-06 14:34:28,593 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:28,594 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 66 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:28,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 472 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:28,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2025-02-06 14:34:28,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2025-02-06 14:34:28,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 172 states have (on average 1.436046511627907) internal successors, (247), 222 states have internal predecessors, (247), 9 states have call successors, (9), 4 states have call predecessors, (9), 9 states have return successors, (23), 11 states have call predecessors, (23), 9 states have call successors, (23) [2025-02-06 14:34:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 279 transitions. [2025-02-06 14:34:28,602 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 279 transitions. Word has length 45 [2025-02-06 14:34:28,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:28,602 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 279 transitions. [2025-02-06 14:34:28,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 279 transitions. [2025-02-06 14:34:28,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 14:34:28,603 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:28,603 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:28,611 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-02-06 14:34:28,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:28,804 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting func_to_recursive_line_0_to_41_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:28,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:28,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1113160832, now seen corresponding path program 1 times [2025-02-06 14:34:28,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:28,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043849285] [2025-02-06 14:34:28,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:28,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:28,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:34:28,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:34:28,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:28,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:28,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582242765] [2025-02-06 14:34:28,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:28,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:28,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:28,827 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:28,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-06 14:34:28,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:34:28,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:34:28,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:28,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:28,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 51 conjuncts are in the unsatisfiable core [2025-02-06 14:34:28,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:28,976 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 [2025-02-06 14:34:28,989 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 [2025-02-06 14:34:29,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2025-02-06 14:34:29,172 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 17 treesize of output 9 [2025-02-06 14:34:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:29,184 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:29,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:29,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043849285] [2025-02-06 14:34:29,456 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:29,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582242765] [2025-02-06 14:34:29,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582242765] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:34:29,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:34:29,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-02-06 14:34:29,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483338387] [2025-02-06 14:34:29,457 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:29,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:34:29,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:29,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:34:29,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:34:29,458 INFO L87 Difference]: Start difference. First operand 238 states and 279 transitions. Second operand has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:29,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:29,676 INFO L93 Difference]: Finished difference Result 385 states and 450 transitions. [2025-02-06 14:34:29,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 14:34:29,676 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2025-02-06 14:34:29,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:29,678 INFO L225 Difference]: With dead ends: 385 [2025-02-06 14:34:29,678 INFO L226 Difference]: Without dead ends: 384 [2025-02-06 14:34:29,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:34:29,678 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 260 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:29,679 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 897 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:29,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-02-06 14:34:29,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 292. [2025-02-06 14:34:29,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 221 states have (on average 1.4660633484162895) internal successors, (324), 271 states have internal predecessors, (324), 11 states have call successors, (11), 7 states have call predecessors, (11), 12 states have return successors, (25), 13 states have call predecessors, (25), 11 states have call successors, (25) [2025-02-06 14:34:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 360 transitions. [2025-02-06 14:34:29,693 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 360 transitions. Word has length 46 [2025-02-06 14:34:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:29,693 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 360 transitions. [2025-02-06 14:34:29,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-06 14:34:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 360 transitions. [2025-02-06 14:34:29,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 14:34:29,693 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:29,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:29,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-02-06 14:34:29,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:29,898 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:29,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:29,898 INFO L85 PathProgramCache]: Analyzing trace with hash -212031825, now seen corresponding path program 1 times [2025-02-06 14:34:29,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:29,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201698932] [2025-02-06 14:34:29,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:29,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:29,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:34:29,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:34:29,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:29,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:29,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489118691] [2025-02-06 14:34:29,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:29,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:29,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:29,927 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:29,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-06 14:34:30,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:34:30,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:34:30,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:30,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:30,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 14:34:30,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:30,104 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 [2025-02-06 14:34:30,170 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 [2025-02-06 14:34:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:30,207 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:30,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201698932] [2025-02-06 14:34:30,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:30,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489118691] [2025-02-06 14:34:30,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489118691] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:30,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:30,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:34:30,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598412999] [2025-02-06 14:34:30,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:30,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:34:30,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:30,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:34:30,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:30,211 INFO L87 Difference]: Start difference. First operand 292 states and 360 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:30,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:30,367 INFO L93 Difference]: Finished difference Result 312 states and 387 transitions. [2025-02-06 14:34:30,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:34:30,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2025-02-06 14:34:30,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:30,368 INFO L225 Difference]: With dead ends: 312 [2025-02-06 14:34:30,368 INFO L226 Difference]: Without dead ends: 310 [2025-02-06 14:34:30,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:34:30,369 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 63 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:30,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 456 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:30,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2025-02-06 14:34:30,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 294. [2025-02-06 14:34:30,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 223 states have (on average 1.4618834080717489) internal successors, (326), 273 states have internal predecessors, (326), 11 states have call successors, (11), 7 states have call predecessors, (11), 12 states have return successors, (25), 13 states have call predecessors, (25), 11 states have call successors, (25) [2025-02-06 14:34:30,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 362 transitions. [2025-02-06 14:34:30,388 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 362 transitions. Word has length 46 [2025-02-06 14:34:30,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:30,388 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 362 transitions. [2025-02-06 14:34:30,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:30,388 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 362 transitions. [2025-02-06 14:34:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2025-02-06 14:34:30,389 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:30,389 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:30,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:30,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:30,593 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting func_to_recursive_line_0_to_41_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:30,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash 148247464, now seen corresponding path program 1 times [2025-02-06 14:34:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:30,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3267752] [2025-02-06 14:34:30,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:30,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 14:34:30,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 14:34:30,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:30,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:30,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621596751] [2025-02-06 14:34:30,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:30,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:30,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:30,625 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:30,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-06 14:34:30,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 47 statements into 1 equivalence classes. [2025-02-06 14:34:30,758 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 47 of 47 statements. [2025-02-06 14:34:30,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:30,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:30,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 62 conjuncts are in the unsatisfiable core [2025-02-06 14:34:30,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:30,769 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 [2025-02-06 14:34:30,771 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 [2025-02-06 14:34:30,936 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 23 treesize of output 15 [2025-02-06 14:34:31,046 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2025-02-06 14:34:31,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 29 [2025-02-06 14:34:31,082 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 [2025-02-06 14:34:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:31,099 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:31,971 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 28 treesize of output 20 [2025-02-06 14:34:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:32,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:32,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3267752] [2025-02-06 14:34:32,374 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:32,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621596751] [2025-02-06 14:34:32,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621596751] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:34:32,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:34:32,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 32 [2025-02-06 14:34:32,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624594724] [2025-02-06 14:34:32,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:32,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-02-06 14:34:32,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:32,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-02-06 14:34:32,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=907, Unknown=0, NotChecked=0, Total=1056 [2025-02-06 14:34:32,376 INFO L87 Difference]: Start difference. First operand 294 states and 362 transitions. Second operand has 33 states, 30 states have (on average 2.7) internal successors, (81), 28 states have internal predecessors, (81), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:34,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:34,210 INFO L93 Difference]: Finished difference Result 501 states and 602 transitions. [2025-02-06 14:34:34,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 14:34:34,211 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 30 states have (on average 2.7) internal successors, (81), 28 states have internal predecessors, (81), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2025-02-06 14:34:34,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:34,212 INFO L225 Difference]: With dead ends: 501 [2025-02-06 14:34:34,212 INFO L226 Difference]: Without dead ends: 500 [2025-02-06 14:34:34,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 510 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=434, Invalid=2016, Unknown=0, NotChecked=0, Total=2450 [2025-02-06 14:34:34,214 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 623 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:34,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 2061 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 14:34:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2025-02-06 14:34:34,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 384. [2025-02-06 14:34:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 305 states have (on average 1.4950819672131148) internal successors, (456), 358 states have internal predecessors, (456), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:34,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 510 transitions. [2025-02-06 14:34:34,229 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 510 transitions. Word has length 47 [2025-02-06 14:34:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:34,230 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 510 transitions. [2025-02-06 14:34:34,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 30 states have (on average 2.7) internal successors, (81), 28 states have internal predecessors, (81), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 510 transitions. [2025-02-06 14:34:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 14:34:34,231 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:34,231 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:34,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-06 14:34:34,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-02-06 14:34:34,435 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:34,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:34,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1899118451, now seen corresponding path program 1 times [2025-02-06 14:34:34,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:34,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129893039] [2025-02-06 14:34:34,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:34,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:34,444 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 14:34:34,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 14:34:34,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:34,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:34,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:34,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:34,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129893039] [2025-02-06 14:34:34,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129893039] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:34,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:34,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 14:34:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655738100] [2025-02-06 14:34:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:34,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:34:34,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:34,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:34:34,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:34:34,704 INFO L87 Difference]: Start difference. First operand 384 states and 510 transitions. Second operand has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:34,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:34,913 INFO L93 Difference]: Finished difference Result 405 states and 537 transitions. [2025-02-06 14:34:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:34:34,913 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2025-02-06 14:34:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:34,915 INFO L225 Difference]: With dead ends: 405 [2025-02-06 14:34:34,915 INFO L226 Difference]: Without dead ends: 404 [2025-02-06 14:34:34,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2025-02-06 14:34:34,915 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 113 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:34,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 645 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2025-02-06 14:34:34,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 385. [2025-02-06 14:34:34,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 306 states have (on average 1.4934640522875817) internal successors, (457), 359 states have internal predecessors, (457), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:34,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 511 transitions. [2025-02-06 14:34:34,929 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 511 transitions. Word has length 48 [2025-02-06 14:34:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:34,929 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 511 transitions. [2025-02-06 14:34:34,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.5) internal successors, (44), 9 states have internal predecessors, (44), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 511 transitions. [2025-02-06 14:34:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-06 14:34:34,930 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:34,930 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:34,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2025-02-06 14:34:34,930 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:34,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:34,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1256870236, now seen corresponding path program 1 times [2025-02-06 14:34:34,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:34,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729164928] [2025-02-06 14:34:34,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:34,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:34,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 14:34:34,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 14:34:34,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:34,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:34,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1387083019] [2025-02-06 14:34:34,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:34,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:34,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:34,949 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:34,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-06 14:34:35,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 14:34:35,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 14:34:35,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:35,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:35,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-02-06 14:34:35,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:35,092 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 [2025-02-06 14:34:35,102 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 [2025-02-06 14:34:35,106 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 [2025-02-06 14:34:35,256 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 [2025-02-06 14:34:35,283 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 [2025-02-06 14:34:35,354 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 17 treesize of output 9 [2025-02-06 14:34:35,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:35,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:35,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:35,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729164928] [2025-02-06 14:34:35,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:35,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387083019] [2025-02-06 14:34:35,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387083019] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:35,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:35,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:34:35,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607846145] [2025-02-06 14:34:35,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:35,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:34:35,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:35,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:34:35,374 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:34:35,374 INFO L87 Difference]: Start difference. First operand 385 states and 511 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:35,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:35,634 INFO L93 Difference]: Finished difference Result 407 states and 536 transitions. [2025-02-06 14:34:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:34:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2025-02-06 14:34:35,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:35,636 INFO L225 Difference]: With dead ends: 407 [2025-02-06 14:34:35,636 INFO L226 Difference]: Without dead ends: 406 [2025-02-06 14:34:35,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:34:35,636 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 157 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:35,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 510 Invalid, 331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:34:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2025-02-06 14:34:35,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 386. [2025-02-06 14:34:35,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 307 states have (on average 1.49185667752443) internal successors, (458), 360 states have internal predecessors, (458), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:35,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 512 transitions. [2025-02-06 14:34:35,662 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 512 transitions. Word has length 49 [2025-02-06 14:34:35,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:35,662 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 512 transitions. [2025-02-06 14:34:35,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 512 transitions. [2025-02-06 14:34:35,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 14:34:35,663 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:35,663 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:35,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:35,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:35,863 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting func_to_recursive_line_0_to_41_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:35,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:35,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1213857404, now seen corresponding path program 1 times [2025-02-06 14:34:35,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:35,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240272787] [2025-02-06 14:34:35,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:35,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:35,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 14:34:35,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 14:34:35,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:35,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:35,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [467894187] [2025-02-06 14:34:35,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:35,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:35,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:35,886 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:35,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-06 14:34:35,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 14:34:36,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 14:34:36,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:36,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:36,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-02-06 14:34:36,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:36,035 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 [2025-02-06 14:34:36,043 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 [2025-02-06 14:34:36,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2025-02-06 14:34:36,237 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 17 treesize of output 9 [2025-02-06 14:34:36,253 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 [2025-02-06 14:34:36,267 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 17 treesize of output 9 [2025-02-06 14:34:36,278 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:36,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:36,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240272787] [2025-02-06 14:34:36,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:36,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467894187] [2025-02-06 14:34:36,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467894187] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:34:36,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:34:36,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22 [2025-02-06 14:34:36,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009900603] [2025-02-06 14:34:36,508 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:36,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-02-06 14:34:36,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:36,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-02-06 14:34:36,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2025-02-06 14:34:36,508 INFO L87 Difference]: Start difference. First operand 386 states and 512 transitions. Second operand has 23 states, 20 states have (on average 4.55) internal successors, (91), 19 states have internal predecessors, (91), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:37,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:37,524 INFO L93 Difference]: Finished difference Result 500 states and 609 transitions. [2025-02-06 14:34:37,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2025-02-06 14:34:37,525 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 4.55) internal successors, (91), 19 states have internal predecessors, (91), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2025-02-06 14:34:37,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:37,526 INFO L225 Difference]: With dead ends: 500 [2025-02-06 14:34:37,526 INFO L226 Difference]: Without dead ends: 498 [2025-02-06 14:34:37,527 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=252, Invalid=1308, Unknown=0, NotChecked=0, Total=1560 [2025-02-06 14:34:37,527 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 701 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1664 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:37,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1664 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 14:34:37,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2025-02-06 14:34:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 386. [2025-02-06 14:34:37,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 307 states have (on average 1.4723127035830619) internal successors, (452), 360 states have internal predecessors, (452), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:37,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 506 transitions. [2025-02-06 14:34:37,543 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 506 transitions. Word has length 50 [2025-02-06 14:34:37,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:37,543 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 506 transitions. [2025-02-06 14:34:37,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 4.55) internal successors, (91), 19 states have internal predecessors, (91), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:37,543 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 506 transitions. [2025-02-06 14:34:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-02-06 14:34:37,544 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:37,544 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:37,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-02-06 14:34:37,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-02-06 14:34:37,748 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:37,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:37,749 INFO L85 PathProgramCache]: Analyzing trace with hash 308271723, now seen corresponding path program 1 times [2025-02-06 14:34:37,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:37,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637834982] [2025-02-06 14:34:37,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:37,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:37,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-02-06 14:34:37,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-02-06 14:34:37,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:37,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:37,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:37,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:37,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637834982] [2025-02-06 14:34:37,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637834982] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:37,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:37,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:34:37,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834441773] [2025-02-06 14:34:37,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:37,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:34:37,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:37,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:34:37,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:37,826 INFO L87 Difference]: Start difference. First operand 386 states and 506 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:37,919 INFO L93 Difference]: Finished difference Result 386 states and 506 transitions. [2025-02-06 14:34:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:34:37,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2025-02-06 14:34:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:37,924 INFO L225 Difference]: With dead ends: 386 [2025-02-06 14:34:37,924 INFO L226 Difference]: Without dead ends: 385 [2025-02-06 14:34:37,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:37,924 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 23 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:37,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 288 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:34:37,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2025-02-06 14:34:37,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2025-02-06 14:34:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 307 states have (on average 1.4690553745928339) internal successors, (451), 359 states have internal predecessors, (451), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:37,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 505 transitions. [2025-02-06 14:34:37,938 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 505 transitions. Word has length 50 [2025-02-06 14:34:37,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:37,939 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 505 transitions. [2025-02-06 14:34:37,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:37,939 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 505 transitions. [2025-02-06 14:34:37,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-02-06 14:34:37,939 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:37,939 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:37,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2025-02-06 14:34:37,939 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting func_to_recursive_line_0_to_41_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:37,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1025126108, now seen corresponding path program 1 times [2025-02-06 14:34:37,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:37,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727296156] [2025-02-06 14:34:37,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:37,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:37,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 14:34:37,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 14:34:37,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:37,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:37,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611834862] [2025-02-06 14:34:37,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:37,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:37,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:37,967 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:37,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-02-06 14:34:38,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 14:34:38,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 14:34:38,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:38,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:38,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 58 conjuncts are in the unsatisfiable core [2025-02-06 14:34:38,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:38,119 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 [2025-02-06 14:34:38,130 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 [2025-02-06 14:34:38,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2025-02-06 14:34:38,411 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 [2025-02-06 14:34:38,429 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 [2025-02-06 14:34:38,442 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 [2025-02-06 14:34:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:38,455 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:39,032 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:39,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727296156] [2025-02-06 14:34:39,032 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:39,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611834862] [2025-02-06 14:34:39,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611834862] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:34:39,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:34:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 21 [2025-02-06 14:34:39,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409577896] [2025-02-06 14:34:39,032 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:39,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 14:34:39,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:39,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 14:34:39,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-02-06 14:34:39,033 INFO L87 Difference]: Start difference. First operand 385 states and 505 transitions. Second operand has 22 states, 19 states have (on average 4.631578947368421) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:40,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:40,462 INFO L93 Difference]: Finished difference Result 435 states and 531 transitions. [2025-02-06 14:34:40,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 14:34:40,465 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 4.631578947368421) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2025-02-06 14:34:40,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:40,467 INFO L225 Difference]: With dead ends: 435 [2025-02-06 14:34:40,467 INFO L226 Difference]: Without dead ends: 434 [2025-02-06 14:34:40,467 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 77 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=171, Invalid=951, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:34:40,467 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 592 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:40,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 1374 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 14:34:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2025-02-06 14:34:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 385. [2025-02-06 14:34:40,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 307 states have (on average 1.4625407166123778) internal successors, (449), 359 states have internal predecessors, (449), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 503 transitions. [2025-02-06 14:34:40,499 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 503 transitions. Word has length 51 [2025-02-06 14:34:40,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:40,499 INFO L471 AbstractCegarLoop]: Abstraction has 385 states and 503 transitions. [2025-02-06 14:34:40,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 4.631578947368421) internal successors, (88), 18 states have internal predecessors, (88), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 503 transitions. [2025-02-06 14:34:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2025-02-06 14:34:40,499 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:40,499 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:40,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-02-06 14:34:40,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2025-02-06 14:34:40,700 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:40,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 966488890, now seen corresponding path program 1 times [2025-02-06 14:34:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:40,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024315052] [2025-02-06 14:34:40,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:40,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:40,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-02-06 14:34:40,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-02-06 14:34:40,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:40,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:40,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:40,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024315052] [2025-02-06 14:34:40,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024315052] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:40,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:40,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 14:34:40,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518766840] [2025-02-06 14:34:40,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:40,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 14:34:40,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:40,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 14:34:40,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:40,825 INFO L87 Difference]: Start difference. First operand 385 states and 503 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:40,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:40,879 INFO L93 Difference]: Finished difference Result 385 states and 503 transitions. [2025-02-06 14:34:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 14:34:40,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2025-02-06 14:34:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:40,880 INFO L225 Difference]: With dead ends: 385 [2025-02-06 14:34:40,881 INFO L226 Difference]: Without dead ends: 384 [2025-02-06 14:34:40,882 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 14:34:40,883 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 22 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:40,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 288 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:34:40,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2025-02-06 14:34:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 384. [2025-02-06 14:34:40,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 307 states have (on average 1.4592833876221498) internal successors, (448), 358 states have internal predecessors, (448), 16 states have call successors, (16), 9 states have call predecessors, (16), 15 states have return successors, (38), 18 states have call predecessors, (38), 16 states have call successors, (38) [2025-02-06 14:34:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 502 transitions. [2025-02-06 14:34:40,899 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 502 transitions. Word has length 51 [2025-02-06 14:34:40,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:40,900 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 502 transitions. [2025-02-06 14:34:40,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:40,900 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 502 transitions. [2025-02-06 14:34:40,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-02-06 14:34:40,901 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:40,901 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:40,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-02-06 14:34:40,901 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting func_to_recursive_line_0_to_41_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:40,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1935315567, now seen corresponding path program 1 times [2025-02-06 14:34:40,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:40,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860468540] [2025-02-06 14:34:40,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:40,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:40,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 14:34:40,919 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 14:34:40,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:40,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:40,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176959445] [2025-02-06 14:34:40,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:40,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:40,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:40,923 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:40,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-02-06 14:34:41,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 14:34:41,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 14:34:41,091 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:41,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:41,094 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 95 conjuncts are in the unsatisfiable core [2025-02-06 14:34:41,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:41,101 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 [2025-02-06 14:34:41,103 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 [2025-02-06 14:34:41,110 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 [2025-02-06 14:34:41,114 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 [2025-02-06 14:34:41,567 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 28 treesize of output 20 [2025-02-06 14:34:41,574 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 14:34:41,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 38 [2025-02-06 14:34:41,705 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2025-02-06 14:34:41,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 29 [2025-02-06 14:34:41,760 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 [2025-02-06 14:34:41,779 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:41,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:42,472 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 42 treesize of output 34 [2025-02-06 14:34:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:43,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:43,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860468540] [2025-02-06 14:34:43,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:43,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176959445] [2025-02-06 14:34:43,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176959445] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:34:43,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:34:43,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18] total 37 [2025-02-06 14:34:43,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199424559] [2025-02-06 14:34:43,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:43,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2025-02-06 14:34:43,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:43,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2025-02-06 14:34:43,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1206, Unknown=0, NotChecked=0, Total=1406 [2025-02-06 14:34:43,057 INFO L87 Difference]: Start difference. First operand 384 states and 502 transitions. Second operand has 38 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:47,576 INFO L93 Difference]: Finished difference Result 604 states and 741 transitions. [2025-02-06 14:34:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-02-06 14:34:47,577 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2025-02-06 14:34:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:47,578 INFO L225 Difference]: With dead ends: 604 [2025-02-06 14:34:47,578 INFO L226 Difference]: Without dead ends: 603 [2025-02-06 14:34:47,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1386 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=997, Invalid=4553, Unknown=0, NotChecked=0, Total=5550 [2025-02-06 14:34:47,580 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 867 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 2414 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:47,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 2414 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-02-06 14:34:47,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-02-06 14:34:47,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 495. [2025-02-06 14:34:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 406 states have (on average 1.4950738916256157) internal successors, (607), 460 states have internal predecessors, (607), 22 states have call successors, (22), 12 states have call predecessors, (22), 21 states have return successors, (57), 24 states have call predecessors, (57), 22 states have call successors, (57) [2025-02-06 14:34:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 686 transitions. [2025-02-06 14:34:47,602 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 686 transitions. Word has length 52 [2025-02-06 14:34:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:47,602 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 686 transitions. [2025-02-06 14:34:47,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 2.7142857142857144) internal successors, (95), 31 states have internal predecessors, (95), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 686 transitions. [2025-02-06 14:34:47,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-02-06 14:34:47,605 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:47,605 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:47,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-02-06 14:34:47,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2025-02-06 14:34:47,806 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash -103615415, now seen corresponding path program 1 times [2025-02-06 14:34:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101148820] [2025-02-06 14:34:47,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:47,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:47,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 14:34:47,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 14:34:47,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:47,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:47,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1656294616] [2025-02-06 14:34:47,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:47,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:47,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:47,830 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:47,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-02-06 14:34:47,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 14:34:47,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 14:34:47,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:47,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:47,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 50 conjuncts are in the unsatisfiable core [2025-02-06 14:34:47,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:47,992 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 [2025-02-06 14:34:48,005 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 [2025-02-06 14:34:48,371 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 [2025-02-06 14:34:48,498 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 17 treesize of output 9 [2025-02-06 14:34:48,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-02-06 14:34:48,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2025-02-06 14:34:48,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:48,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:48,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:48,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101148820] [2025-02-06 14:34:48,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:48,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656294616] [2025-02-06 14:34:48,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656294616] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:48,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:48,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2025-02-06 14:34:48,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423984434] [2025-02-06 14:34:48,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:48,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 14:34:48,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:48,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 14:34:48,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2025-02-06 14:34:48,566 INFO L87 Difference]: Start difference. First operand 495 states and 686 transitions. Second operand has 17 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:48,985 INFO L93 Difference]: Finished difference Result 512 states and 707 transitions. [2025-02-06 14:34:48,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 14:34:48,989 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 52 [2025-02-06 14:34:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:48,990 INFO L225 Difference]: With dead ends: 512 [2025-02-06 14:34:48,990 INFO L226 Difference]: Without dead ends: 511 [2025-02-06 14:34:48,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:34:48,991 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 235 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:48,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 705 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:34:48,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-02-06 14:34:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 498. [2025-02-06 14:34:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 409 states have (on average 1.4914425427872862) internal successors, (610), 463 states have internal predecessors, (610), 22 states have call successors, (22), 12 states have call predecessors, (22), 21 states have return successors, (57), 24 states have call predecessors, (57), 22 states have call successors, (57) [2025-02-06 14:34:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 689 transitions. [2025-02-06 14:34:49,014 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 689 transitions. Word has length 52 [2025-02-06 14:34:49,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:49,014 INFO L471 AbstractCegarLoop]: Abstraction has 498 states and 689 transitions. [2025-02-06 14:34:49,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 689 transitions. [2025-02-06 14:34:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-06 14:34:49,017 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:49,017 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:49,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-02-06 14:34:49,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:49,221 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting func_to_recursive_line_0_to_41_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:49,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:49,222 INFO L85 PathProgramCache]: Analyzing trace with hash 134759603, now seen corresponding path program 1 times [2025-02-06 14:34:49,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:49,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203335247] [2025-02-06 14:34:49,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:49,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:49,230 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 14:34:49,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 14:34:49,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:49,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:49,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406523662] [2025-02-06 14:34:49,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:49,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:49,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:49,239 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:49,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-02-06 14:34:49,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 14:34:49,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 14:34:49,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:49,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:49,397 INFO L256 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 56 conjuncts are in the unsatisfiable core [2025-02-06 14:34:49,399 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:49,405 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 [2025-02-06 14:34:49,410 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 [2025-02-06 14:34:49,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2025-02-06 14:34:49,547 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 [2025-02-06 14:34:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:49,557 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:34:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:50,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:50,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203335247] [2025-02-06 14:34:50,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:50,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406523662] [2025-02-06 14:34:50,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406523662] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:34:50,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:34:50,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 18 [2025-02-06 14:34:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010775376] [2025-02-06 14:34:50,103 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:34:50,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 14:34:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:50,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 14:34:50,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:34:50,104 INFO L87 Difference]: Start difference. First operand 498 states and 689 transitions. Second operand has 19 states, 16 states have (on average 6.0625) internal successors, (97), 15 states have internal predecessors, (97), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:51,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:51,250 INFO L93 Difference]: Finished difference Result 792 states and 1024 transitions. [2025-02-06 14:34:51,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-06 14:34:51,251 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 6.0625) internal successors, (97), 15 states have internal predecessors, (97), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2025-02-06 14:34:51,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:51,253 INFO L225 Difference]: With dead ends: 792 [2025-02-06 14:34:51,253 INFO L226 Difference]: Without dead ends: 791 [2025-02-06 14:34:51,254 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=660, Unknown=0, NotChecked=0, Total=812 [2025-02-06 14:34:51,254 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 816 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:51,254 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 1721 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-06 14:34:51,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2025-02-06 14:34:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 661. [2025-02-06 14:34:51,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 551 states have (on average 1.5081669691470054) internal successors, (831), 611 states have internal predecessors, (831), 32 states have call successors, (32), 17 states have call predecessors, (32), 32 states have return successors, (90), 34 states have call predecessors, (90), 32 states have call successors, (90) [2025-02-06 14:34:51,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 953 transitions. [2025-02-06 14:34:51,287 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 953 transitions. Word has length 53 [2025-02-06 14:34:51,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:51,287 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 953 transitions. [2025-02-06 14:34:51,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 6.0625) internal successors, (97), 15 states have internal predecessors, (97), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:51,287 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 953 transitions. [2025-02-06 14:34:51,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-02-06 14:34:51,287 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:51,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:51,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-02-06 14:34:51,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2025-02-06 14:34:51,489 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:51,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:51,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1082889496, now seen corresponding path program 1 times [2025-02-06 14:34:51,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:51,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343513397] [2025-02-06 14:34:51,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:51,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:51,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 14:34:51,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 14:34:51,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:51,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:51,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084802758] [2025-02-06 14:34:51,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:51,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:51,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:51,512 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:51,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-02-06 14:34:51,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-02-06 14:34:51,665 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-02-06 14:34:51,665 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:51,665 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:51,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-02-06 14:34:51,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:51,678 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 [2025-02-06 14:34:51,681 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 [2025-02-06 14:34:51,695 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 [2025-02-06 14:34:51,866 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 [2025-02-06 14:34:52,006 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 17 treesize of output 9 [2025-02-06 14:34:52,045 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 [2025-02-06 14:34:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:52,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:34:52,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:34:52,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343513397] [2025-02-06 14:34:52,155 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:34:52,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084802758] [2025-02-06 14:34:52,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084802758] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:34:52,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:34:52,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-06 14:34:52,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886327926] [2025-02-06 14:34:52,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:34:52,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 14:34:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:34:52,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 14:34:52,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:34:52,156 INFO L87 Difference]: Start difference. First operand 661 states and 953 transitions. Second operand has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:56,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2025-02-06 14:34:56,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:34:56,647 INFO L93 Difference]: Finished difference Result 675 states and 970 transitions. [2025-02-06 14:34:56,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 14:34:56,648 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2025-02-06 14:34:56,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:34:56,651 INFO L225 Difference]: With dead ends: 675 [2025-02-06 14:34:56,651 INFO L226 Difference]: Without dead ends: 674 [2025-02-06 14:34:56,652 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:34:56,652 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 161 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:34:56,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 648 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 452 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2025-02-06 14:34:56,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2025-02-06 14:34:56,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 662. [2025-02-06 14:34:56,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 552 states have (on average 1.5072463768115942) internal successors, (832), 612 states have internal predecessors, (832), 32 states have call successors, (32), 17 states have call predecessors, (32), 32 states have return successors, (90), 34 states have call predecessors, (90), 32 states have call successors, (90) [2025-02-06 14:34:56,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 954 transitions. [2025-02-06 14:34:56,700 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 954 transitions. Word has length 53 [2025-02-06 14:34:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:34:56,700 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 954 transitions. [2025-02-06 14:34:56,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.083333333333333) internal successors, (49), 13 states have internal predecessors, (49), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-06 14:34:56,700 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 954 transitions. [2025-02-06 14:34:56,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-02-06 14:34:56,700 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:34:56,700 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:34:56,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-02-06 14:34:56,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2025-02-06 14:34:56,905 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting func_to_recursive_line_0_to_41_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_0_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_0_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 56 more)] === [2025-02-06 14:34:56,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:34:56,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1980588152, now seen corresponding path program 1 times [2025-02-06 14:34:56,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:34:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822163748] [2025-02-06 14:34:56,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:56,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:34:56,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-06 14:34:56,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-06 14:34:56,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:56,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:34:56,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934469593] [2025-02-06 14:34:56,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:34:56,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:34:56,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:34:56,935 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 14:34:56,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-02-06 14:34:57,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-02-06 14:34:57,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-02-06 14:34:57,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:34:57,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:34:57,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 90 conjuncts are in the unsatisfiable core [2025-02-06 14:34:57,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:34:57,114 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 [2025-02-06 14:34:57,126 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 [2025-02-06 14:34:57,130 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 [2025-02-06 14:34:57,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 11 [2025-02-06 14:34:57,395 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 17 treesize of output 9 [2025-02-06 14:34:57,414 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 [2025-02-06 14:34:57,432 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 [2025-02-06 14:34:57,436 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 17 treesize of output 9 [2025-02-06 14:34:57,496 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:34:57,496 INFO L312 TraceCheckSpWp]: Computing backward predicates...