./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-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_ps6-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 2b375ae29a973823eea93f22f40d893acb563fa864c4860e04525925a120d938 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 14:36:33,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 14:36:33,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-02-06 14:36:33,970 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 14:36:33,971 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 14:36:33,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 14:36:33,984 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 14:36:33,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 14:36:33,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 14:36:33,985 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 14:36:33,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 14:36:33,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 14:36:33,985 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 14:36:33,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 14:36:33,985 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 14:36:33,985 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 14:36:33,986 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 14:36:33,987 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:36:33,987 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 14:36:33,987 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 14:36:33,988 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 14:36:33,988 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 14:36:33,988 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 14:36:33,988 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 14:36:33,988 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 -> 2b375ae29a973823eea93f22f40d893acb563fa864c4860e04525925a120d938 [2025-02-06 14:36:34,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 14:36:34,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 14:36:34,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 14:36:34,227 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 14:36:34,228 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 14:36:34,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2025-02-06 14:36:35,368 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/efd4d784c/af559a2bf34f479b860c86b098d814bc/FLAGb509a97e4 [2025-02-06 14:36:35,641 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 14:36:35,641 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2025-02-06 14:36:35,646 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/efd4d784c/af559a2bf34f479b860c86b098d814bc/FLAGb509a97e4 [2025-02-06 14:36:35,655 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/efd4d784c/af559a2bf34f479b860c86b098d814bc [2025-02-06 14:36:35,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 14:36:35,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 14:36:35,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 14:36:35,659 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 14:36:35,662 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 14:36:35,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62b9ba58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35, skipping insertion in model container [2025-02-06 14:36:35,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 14:36:35,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:36:35,802 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 14:36:35,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 14:36:35,834 INFO L204 MainTranslator]: Completed translation [2025-02-06 14:36:35,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35 WrapperNode [2025-02-06 14:36:35,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 14:36:35,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 14:36:35,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 14:36:35,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 14:36:35,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,847 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,868 INFO L138 Inliner]: procedures = 16, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 143 [2025-02-06 14:36:35,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 14:36:35,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 14:36:35,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 14:36:35,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 14:36:35,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,884 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,903 INFO L175 MemorySlicer]: Split 60 memory accesses to 5 slices as follows [2, 4, 5, 4, 45]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 2, 1, 2]. [2025-02-06 14:36:35,904 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,904 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,912 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 14:36:35,924 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 14:36:35,924 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 14:36:35,924 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 14:36:35,924 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (1/1) ... [2025-02-06 14:36:35,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 14:36:35,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:35,951 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 14:36:35,954 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 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 14:36:35,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 14:36:35,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 14:36:35,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-02-06 14:36:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2025-02-06 14:36:35,973 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2025-02-06 14:36:35,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 14:36:36,051 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 14:36:36,053 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 14:36:36,394 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L73: call ULTIMATE.dealloc(main_~#k~0#1.base, main_~#k~0#1.offset);havoc main_~#k~0#1.base, main_~#k~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_~#c~0#1.base, main_~#c~0#1.offset);havoc main_~#c~0#1.base, main_~#c~0#1.offset; [2025-02-06 14:36:36,775 INFO L? ?]: Removed 502 outVars from TransFormulas that were not future-live. [2025-02-06 14:36:36,775 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 14:36:36,794 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 14:36:36,795 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 14:36:36,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:36:36 BoogieIcfgContainer [2025-02-06 14:36:36,795 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 14:36:36,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 14:36:36,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 14:36:36,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 14:36:36,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:36:35" (1/3) ... [2025-02-06 14:36:36,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:36:36, skipping insertion in model container [2025-02-06 14:36:36,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:36:35" (2/3) ... [2025-02-06 14:36:36,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b41f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:36:36, skipping insertion in model container [2025-02-06 14:36:36,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:36:36" (3/3) ... [2025-02-06 14:36:36,808 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_ps6-ll.c [2025-02-06 14:36:36,823 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 14:36:36,824 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_ps6-ll.c that has 3 procedures, 231 locations, 1 initial locations, 0 loop locations, and 102 error locations. [2025-02-06 14:36:36,870 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 14:36:36,878 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;@1dff0e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 14:36:36,879 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2025-02-06 14:36:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 121 states have (on average 1.8760330578512396) internal successors, (227), 224 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-02-06 14:36:36,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 14:36:36,885 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:36,885 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:36,886 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_27_to_35_0Err55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:36,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:36,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1630937752, now seen corresponding path program 1 times [2025-02-06 14:36:36,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:36,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610548210] [2025-02-06 14:36:36,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:36,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:36,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 14:36:36,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 14:36:36,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:36,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:37,006 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 14:36:37,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610548210] [2025-02-06 14:36:37,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610548210] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:37,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:37,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-06 14:36:37,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303818340] [2025-02-06 14:36:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:37,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 14:36:37,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:37,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 14:36:37,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 14:36:37,028 INFO L87 Difference]: Start difference. First operand has 231 states, 121 states have (on average 1.8760330578512396) internal successors, (227), 224 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:36:37,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:37,058 INFO L93 Difference]: Finished difference Result 458 states and 474 transitions. [2025-02-06 14:36:37,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 14:36:37,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2025-02-06 14:36:37,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:37,065 INFO L225 Difference]: With dead ends: 458 [2025-02-06 14:36:37,065 INFO L226 Difference]: Without dead ends: 224 [2025-02-06 14:36:37,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 14:36:37,070 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:37,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:36:37,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2025-02-06 14:36:37,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2025-02-06 14:36:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 116 states have (on average 1.8793103448275863) internal successors, (218), 218 states have internal predecessors, (218), 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 14:36:37,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 226 transitions. [2025-02-06 14:36:37,106 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 226 transitions. Word has length 8 [2025-02-06 14:36:37,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:37,107 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 226 transitions. [2025-02-06 14:36:37,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 14:36:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 226 transitions. [2025-02-06 14:36:37,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-02-06 14:36:37,107 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:37,107 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:37,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 14:36:37,108 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_27_to_35_0Err55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:37,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:37,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1659566903, now seen corresponding path program 1 times [2025-02-06 14:36:37,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:37,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40495972] [2025-02-06 14:36:37,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:37,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:37,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 14:36:37,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 14:36:37,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:37,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:37,361 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 14:36:37,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:37,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40495972] [2025-02-06 14:36:37,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40495972] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:37,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:37,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:37,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967039731] [2025-02-06 14:36:37,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:37,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:37,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:37,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:37,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:37,364 INFO L87 Difference]: Start difference. First operand 224 states and 226 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 14:36:37,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:37,747 INFO L93 Difference]: Finished difference Result 414 states and 419 transitions. [2025-02-06 14:36:37,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:37,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 8 [2025-02-06 14:36:37,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:37,749 INFO L225 Difference]: With dead ends: 414 [2025-02-06 14:36:37,749 INFO L226 Difference]: Without dead ends: 402 [2025-02-06 14:36:37,750 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 14:36:37,750 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 322 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:37,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 848 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:37,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-02-06 14:36:37,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 273. [2025-02-06 14:36:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.8159509202453987) internal successors, (296), 265 states have internal predecessors, (296), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 307 transitions. [2025-02-06 14:36:37,762 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 307 transitions. Word has length 8 [2025-02-06 14:36:37,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:37,762 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 307 transitions. [2025-02-06 14:36:37,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 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 14:36:37,763 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 307 transitions. [2025-02-06 14:36:37,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-06 14:36:37,763 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:37,763 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 14:36:37,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 14:36:37,763 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_35_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:37,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:37,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1996935893, now seen corresponding path program 1 times [2025-02-06 14:36:37,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:37,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943499281] [2025-02-06 14:36:37,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:37,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:37,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 14:36:37,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 14:36:37,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:37,777 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:37,976 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 14:36:37,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:37,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943499281] [2025-02-06 14:36:37,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943499281] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:37,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:37,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:37,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387495550] [2025-02-06 14:36:37,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:37,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:37,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:37,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:37,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:37,978 INFO L87 Difference]: Start difference. First operand 273 states and 307 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 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 14:36:38,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:38,234 INFO L93 Difference]: Finished difference Result 402 states and 407 transitions. [2025-02-06 14:36:38,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:38,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 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 14:36:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:38,236 INFO L225 Difference]: With dead ends: 402 [2025-02-06 14:36:38,236 INFO L226 Difference]: Without dead ends: 392 [2025-02-06 14:36:38,237 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 14:36:38,237 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 268 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:38,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 846 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:38,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2025-02-06 14:36:38,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 273. [2025-02-06 14:36:38,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.7546012269938651) internal successors, (286), 265 states have internal predecessors, (286), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:38,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2025-02-06 14:36:38,250 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 20 [2025-02-06 14:36:38,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:38,250 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2025-02-06 14:36:38,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 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 14:36:38,250 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2025-02-06 14:36:38,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-02-06 14:36:38,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:38,251 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] [2025-02-06 14:36:38,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 14:36:38,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_35_0Err33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:38,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:38,251 INFO L85 PathProgramCache]: Analyzing trace with hash 447393825, now seen corresponding path program 1 times [2025-02-06 14:36:38,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:38,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629035835] [2025-02-06 14:36:38,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:38,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 14:36:38,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 14:36:38,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:38,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:38,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [89304953] [2025-02-06 14:36:38,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:38,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:38,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:38,276 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 14:36:38,278 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 14:36:38,326 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-02-06 14:36:38,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-02-06 14:36:38,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:38,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:38,348 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 14:36:38,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:38,372 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 14:36:38,560 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 14:36:38,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:38,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629035835] [2025-02-06 14:36:38,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89304953] [2025-02-06 14:36:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89304953] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:38,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:38,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:36:38,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694452761] [2025-02-06 14:36:38,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:38,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:36:38,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:38,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:36:38,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:38,562 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 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 14:36:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:38,957 INFO L93 Difference]: Finished difference Result 392 states and 397 transitions. [2025-02-06 14:36:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:36:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 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 30 [2025-02-06 14:36:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:38,958 INFO L225 Difference]: With dead ends: 392 [2025-02-06 14:36:38,958 INFO L226 Difference]: Without dead ends: 391 [2025-02-06 14:36:38,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:36:38,959 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 303 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:38,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 985 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:38,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2025-02-06 14:36:38,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 273. [2025-02-06 14:36:38,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.7484662576687116) internal successors, (285), 265 states have internal predecessors, (285), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:38,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2025-02-06 14:36:38,970 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 30 [2025-02-06 14:36:38,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:38,970 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2025-02-06 14:36:38,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 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 14:36:38,971 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2025-02-06 14:36:38,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-02-06 14:36:38,971 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:38,971 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] [2025-02-06 14:36:38,978 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 14:36:39,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:39,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_35_0Err32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:39,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:39,177 INFO L85 PathProgramCache]: Analyzing trace with hash 984306841, now seen corresponding path program 1 times [2025-02-06 14:36:39,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:39,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336683039] [2025-02-06 14:36:39,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:39,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:39,185 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 14:36:39,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 14:36:39,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:39,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:39,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292843313] [2025-02-06 14:36:39,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:39,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:39,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:39,197 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 14:36:39,198 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 14:36:39,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-02-06 14:36:39,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-02-06 14:36:39,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:39,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:39,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 14:36:39,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:39,262 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 14:36:39,350 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 14:36:39,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:39,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:39,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336683039] [2025-02-06 14:36:39,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:39,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292843313] [2025-02-06 14:36:39,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292843313] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:39,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:39,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:39,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71091225] [2025-02-06 14:36:39,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:39,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:39,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:39,354 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:39,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:39,355 INFO L87 Difference]: Start difference. First operand 273 states and 296 transitions. Second operand has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 14:36:39,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:39,810 INFO L93 Difference]: Finished difference Result 391 states and 396 transitions. [2025-02-06 14:36:39,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:39,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 31 [2025-02-06 14:36:39,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:39,811 INFO L225 Difference]: With dead ends: 391 [2025-02-06 14:36:39,811 INFO L226 Difference]: Without dead ends: 390 [2025-02-06 14:36:39,812 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:39,812 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 251 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:39,812 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 972 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 14:36:39,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-02-06 14:36:39,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 273. [2025-02-06 14:36:39,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.7423312883435582) internal successors, (284), 265 states have internal predecessors, (284), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:39,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 295 transitions. [2025-02-06 14:36:39,820 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 295 transitions. Word has length 31 [2025-02-06 14:36:39,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:39,820 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 295 transitions. [2025-02-06 14:36:39,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 14:36:39,821 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 295 transitions. [2025-02-06 14:36:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-02-06 14:36:39,821 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:39,821 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] [2025-02-06 14:36:39,827 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 14:36:40,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:40,025 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_27_to_35_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:40,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:40,026 INFO L85 PathProgramCache]: Analyzing trace with hash 448741151, now seen corresponding path program 1 times [2025-02-06 14:36:40,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:40,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453786685] [2025-02-06 14:36:40,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:40,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:40,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-02-06 14:36:40,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-02-06 14:36:40,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:40,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:40,163 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 14:36:40,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:40,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453786685] [2025-02-06 14:36:40,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453786685] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:40,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:40,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948944698] [2025-02-06 14:36:40,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:40,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:40,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:40,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:40,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:40,165 INFO L87 Difference]: Start difference. First operand 273 states and 295 transitions. Second operand has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 14:36:40,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:40,369 INFO L93 Difference]: Finished difference Result 390 states and 395 transitions. [2025-02-06 14:36:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:40,370 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 32 [2025-02-06 14:36:40,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:40,371 INFO L225 Difference]: With dead ends: 390 [2025-02-06 14:36:40,371 INFO L226 Difference]: Without dead ends: 382 [2025-02-06 14:36:40,371 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 14:36:40,372 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 216 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:40,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 857 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:40,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-02-06 14:36:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 273. [2025-02-06 14:36:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6932515337423313) internal successors, (276), 265 states have internal predecessors, (276), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:40,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 287 transitions. [2025-02-06 14:36:40,385 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 287 transitions. Word has length 32 [2025-02-06 14:36:40,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:40,386 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 287 transitions. [2025-02-06 14:36:40,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 14:36:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 287 transitions. [2025-02-06 14:36:40,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-02-06 14:36:40,387 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:40,387 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 14:36:40,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 14:36:40,388 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_35_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:40,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 733457175, now seen corresponding path program 1 times [2025-02-06 14:36:40,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:40,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-06 14:36:40,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:40,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:40,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:36:40,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:36:40,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:40,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:40,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [303791776] [2025-02-06 14:36:40,418 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:40,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:40,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:40,422 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 14:36:40,430 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 14:36:40,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-02-06 14:36:40,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-02-06 14:36:40,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:40,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:40,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 14:36:40,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:40,513 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 14:36:40,678 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 14:36:40,678 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:40,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:40,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987922104] [2025-02-06 14:36:40,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:40,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303791776] [2025-02-06 14:36:40,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303791776] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:40,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:40,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:36:40,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151236047] [2025-02-06 14:36:40,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:40,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:36:40,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:40,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:36:40,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:40,682 INFO L87 Difference]: Start difference. First operand 273 states and 287 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 14:36:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:41,034 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2025-02-06 14:36:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:36:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 40 [2025-02-06 14:36:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:41,036 INFO L225 Difference]: With dead ends: 382 [2025-02-06 14:36:41,036 INFO L226 Difference]: Without dead ends: 380 [2025-02-06 14:36:41,036 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:36:41,036 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 198 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:41,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1030 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-02-06 14:36:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2025-02-06 14:36:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 265 states have internal predecessors, (274), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 285 transitions. [2025-02-06 14:36:41,049 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 285 transitions. Word has length 40 [2025-02-06 14:36:41,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:41,049 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 285 transitions. [2025-02-06 14:36:41,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 7 states have internal predecessors, (39), 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 14:36:41,050 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 285 transitions. [2025-02-06 14:36:41,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-02-06 14:36:41,051 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:41,051 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 14:36:41,059 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 14:36:41,255 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 14:36:41,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_35_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:41,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash 477712917, now seen corresponding path program 1 times [2025-02-06 14:36:41,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:41,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341027498] [2025-02-06 14:36:41,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:41,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:41,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:36:41,281 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:36:41,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:41,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:41,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352221423] [2025-02-06 14:36:41,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:41,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:41,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:41,287 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 14:36:41,294 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 14:36:41,339 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-02-06 14:36:41,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-02-06 14:36:41,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:41,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:41,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-06 14:36:41,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:41,369 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 14:36:41,431 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 14:36:41,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:41,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341027498] [2025-02-06 14:36:41,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352221423] [2025-02-06 14:36:41,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352221423] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:41,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:41,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:41,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62943133] [2025-02-06 14:36:41,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:41,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:41,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:41,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:41,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:41,433 INFO L87 Difference]: Start difference. First operand 273 states and 285 transitions. Second operand has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 14:36:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:41,645 INFO L93 Difference]: Finished difference Result 380 states and 385 transitions. [2025-02-06 14:36:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 42 [2025-02-06 14:36:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:41,646 INFO L225 Difference]: With dead ends: 380 [2025-02-06 14:36:41,646 INFO L226 Difference]: Without dead ends: 378 [2025-02-06 14:36:41,647 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 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 14:36:41,647 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 186 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:41,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 881 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:41,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-02-06 14:36:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2025-02-06 14:36:41,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6687116564417177) internal successors, (272), 265 states have internal predecessors, (272), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 283 transitions. [2025-02-06 14:36:41,654 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 283 transitions. Word has length 42 [2025-02-06 14:36:41,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:41,654 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 283 transitions. [2025-02-06 14:36:41,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 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 14:36:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 283 transitions. [2025-02-06 14:36:41,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-02-06 14:36:41,655 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:41,655 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 14:36:41,664 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 14:36:41,859 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 14:36:41,859 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_35_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:41,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:41,860 INFO L85 PathProgramCache]: Analyzing trace with hash -479383277, now seen corresponding path program 1 times [2025-02-06 14:36:41,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:41,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665819073] [2025-02-06 14:36:41,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:41,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:41,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 14:36:41,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 14:36:41,885 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:41,885 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:41,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [780069766] [2025-02-06 14:36:41,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:41,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:41,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:41,891 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 14:36:41,892 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 14:36:41,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-02-06 14:36:41,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-02-06 14:36:41,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:41,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:41,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 14:36:41,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:41,966 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 14:36:42,197 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 14:36:42,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:42,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665819073] [2025-02-06 14:36:42,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:42,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [780069766] [2025-02-06 14:36:42,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [780069766] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:42,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:42,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:36:42,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258402214] [2025-02-06 14:36:42,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:42,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:36:42,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:42,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:36:42,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:42,199 INFO L87 Difference]: Start difference. First operand 273 states and 283 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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 14:36:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:42,791 INFO L93 Difference]: Finished difference Result 378 states and 383 transitions. [2025-02-06 14:36:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:36:42,791 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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 44 [2025-02-06 14:36:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:42,792 INFO L225 Difference]: With dead ends: 378 [2025-02-06 14:36:42,793 INFO L226 Difference]: Without dead ends: 377 [2025-02-06 14:36:42,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:36:42,793 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 182 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:42,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 969 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 14:36:42,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-02-06 14:36:42,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2025-02-06 14:36:42,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6625766871165644) internal successors, (271), 265 states have internal predecessors, (271), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:42,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 282 transitions. [2025-02-06 14:36:42,799 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 282 transitions. Word has length 44 [2025-02-06 14:36:42,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:42,799 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 282 transitions. [2025-02-06 14:36:42,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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 14:36:42,800 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 282 transitions. [2025-02-06 14:36:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-02-06 14:36:42,800 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:42,800 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 14:36:42,806 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 14:36:43,000 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 14:36:43,001 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_35_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:43,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1975979573, now seen corresponding path program 1 times [2025-02-06 14:36:43,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:43,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699541633] [2025-02-06 14:36:43,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:43,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:43,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:36:43,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:36:43,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:43,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:43,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1061577969] [2025-02-06 14:36:43,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:43,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:43,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:43,034 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 14:36:43,037 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 14:36:43,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-02-06 14:36:43,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-02-06 14:36:43,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:43,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:43,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 14:36:43,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:43,111 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 14:36:43,286 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 14:36:43,286 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:43,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699541633] [2025-02-06 14:36:43,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:43,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061577969] [2025-02-06 14:36:43,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061577969] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:43,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:43,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:43,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676140369] [2025-02-06 14:36:43,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:43,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:43,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:43,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:43,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:43,288 INFO L87 Difference]: Start difference. First operand 273 states and 282 transitions. Second operand has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 14:36:43,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:43,940 INFO L93 Difference]: Finished difference Result 377 states and 382 transitions. [2025-02-06 14:36:43,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:43,940 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 45 [2025-02-06 14:36:43,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:43,941 INFO L225 Difference]: With dead ends: 377 [2025-02-06 14:36:43,941 INFO L226 Difference]: Without dead ends: 376 [2025-02-06 14:36:43,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:43,942 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 190 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 831 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:43,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 831 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 14:36:43,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-02-06 14:36:43,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 273. [2025-02-06 14:36:43,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.656441717791411) internal successors, (270), 265 states have internal predecessors, (270), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:43,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 281 transitions. [2025-02-06 14:36:43,948 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 281 transitions. Word has length 45 [2025-02-06 14:36:43,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:43,949 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 281 transitions. [2025-02-06 14:36:43,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 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 14:36:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 281 transitions. [2025-02-06 14:36:43,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-02-06 14:36:43,949 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:43,949 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 14:36:43,955 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 14:36:44,153 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 14:36:44,153 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_35_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:44,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:44,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1125824495, now seen corresponding path program 1 times [2025-02-06 14:36:44,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:44,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511784394] [2025-02-06 14:36:44,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:44,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:44,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-02-06 14:36:44,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-02-06 14:36:44,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:44,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:44,417 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 14:36:44,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:44,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511784394] [2025-02-06 14:36:44,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511784394] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:44,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:44,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:44,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061487854] [2025-02-06 14:36:44,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:44,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:44,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:44,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:44,418 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:44,418 INFO L87 Difference]: Start difference. First operand 273 states and 281 transitions. Second operand has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 14:36:44,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:44,557 INFO L93 Difference]: Finished difference Result 382 states and 386 transitions. [2025-02-06 14:36:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:44,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 46 [2025-02-06 14:36:44,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:44,559 INFO L225 Difference]: With dead ends: 382 [2025-02-06 14:36:44,559 INFO L226 Difference]: Without dead ends: 380 [2025-02-06 14:36:44,559 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 14:36:44,560 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 195 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:44,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1067 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:36:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-02-06 14:36:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2025-02-06 14:36:44,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6441717791411044) internal successors, (268), 265 states have internal predecessors, (268), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:44,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 279 transitions. [2025-02-06 14:36:44,568 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 279 transitions. Word has length 46 [2025-02-06 14:36:44,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:44,568 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 279 transitions. [2025-02-06 14:36:44,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 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 14:36:44,568 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 279 transitions. [2025-02-06 14:36:44,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-02-06 14:36:44,571 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:44,571 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 14:36:44,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 14:36:44,571 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_35_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:44,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:44,571 INFO L85 PathProgramCache]: Analyzing trace with hash 414422799, now seen corresponding path program 1 times [2025-02-06 14:36:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:44,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841870572] [2025-02-06 14:36:44,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:44,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:44,581 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-02-06 14:36:44,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-02-06 14:36:44,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:44,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:44,748 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 14:36:44,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841870572] [2025-02-06 14:36:44,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841870572] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:44,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:44,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:44,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138494489] [2025-02-06 14:36:44,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:44,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:44,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:44,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:44,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:44,750 INFO L87 Difference]: Start difference. First operand 273 states and 279 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 14:36:45,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:45,138 INFO L93 Difference]: Finished difference Result 380 states and 384 transitions. [2025-02-06 14:36:45,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:45,138 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 48 [2025-02-06 14:36:45,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:45,140 INFO L225 Difference]: With dead ends: 380 [2025-02-06 14:36:45,140 INFO L226 Difference]: Without dead ends: 379 [2025-02-06 14:36:45,140 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:45,141 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 196 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:45,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1022 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:45,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-02-06 14:36:45,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 273. [2025-02-06 14:36:45,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.638036809815951) internal successors, (267), 265 states have internal predecessors, (267), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:45,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 278 transitions. [2025-02-06 14:36:45,148 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 278 transitions. Word has length 48 [2025-02-06 14:36:45,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:45,148 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 278 transitions. [2025-02-06 14:36:45,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 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 14:36:45,148 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 278 transitions. [2025-02-06 14:36:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-02-06 14:36:45,148 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:45,148 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 14:36:45,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 14:36:45,149 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_35_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:45,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:45,149 INFO L85 PathProgramCache]: Analyzing trace with hash -37795001, now seen corresponding path program 1 times [2025-02-06 14:36:45,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:45,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565017852] [2025-02-06 14:36:45,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:45,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:45,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-02-06 14:36:45,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-02-06 14:36:45,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:45,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:45,297 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 14:36:45,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:45,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565017852] [2025-02-06 14:36:45,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565017852] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:45,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:45,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:45,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603397263] [2025-02-06 14:36:45,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:45,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:45,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:45,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:45,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:45,299 INFO L87 Difference]: Start difference. First operand 273 states and 278 transitions. Second operand has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 14:36:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:45,697 INFO L93 Difference]: Finished difference Result 379 states and 383 transitions. [2025-02-06 14:36:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:45,698 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 49 [2025-02-06 14:36:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:45,699 INFO L225 Difference]: With dead ends: 379 [2025-02-06 14:36:45,699 INFO L226 Difference]: Without dead ends: 378 [2025-02-06 14:36:45,699 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 14:36:45,700 INFO L435 NwaCegarLoop]: 216 mSDtfsCounter, 188 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:45,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 995 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 14:36:45,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-02-06 14:36:45,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2025-02-06 14:36:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6319018404907975) internal successors, (266), 265 states have internal predecessors, (266), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2025-02-06 14:36:45,705 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 49 [2025-02-06 14:36:45,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:45,705 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2025-02-06 14:36:45,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 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 14:36:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2025-02-06 14:36:45,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-06 14:36:45,706 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:45,706 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, 1, 1, 1, 1] [2025-02-06 14:36:45,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 14:36:45,706 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_27_to_35_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:45,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash 448662748, now seen corresponding path program 1 times [2025-02-06 14:36:45,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:45,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678513053] [2025-02-06 14:36:45,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:45,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:45,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-06 14:36:45,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-06 14:36:45,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:45,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:45,853 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 14:36:45,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:45,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678513053] [2025-02-06 14:36:45,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678513053] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:45,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:45,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:45,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054311947] [2025-02-06 14:36:45,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:45,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:45,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:45,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:45,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:45,855 INFO L87 Difference]: Start difference. First operand 273 states and 277 transitions. Second operand has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 14:36:45,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:45,917 INFO L93 Difference]: Finished difference Result 372 states and 376 transitions. [2025-02-06 14:36:45,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:45,918 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 57 [2025-02-06 14:36:45,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:45,919 INFO L225 Difference]: With dead ends: 372 [2025-02-06 14:36:45,919 INFO L226 Difference]: Without dead ends: 371 [2025-02-06 14:36:45,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:45,920 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 149 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:45,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1290 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:36:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2025-02-06 14:36:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2025-02-06 14:36:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 164 states have (on average 1.6280487804878048) internal successors, (267), 266 states have internal predecessors, (267), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:45,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 278 transitions. [2025-02-06 14:36:45,925 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 278 transitions. Word has length 57 [2025-02-06 14:36:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:45,925 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 278 transitions. [2025-02-06 14:36:45,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 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 14:36:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 278 transitions. [2025-02-06 14:36:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-02-06 14:36:45,926 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:45,926 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, 1, 1, 1, 1, 1] [2025-02-06 14:36:45,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 14:36:45,926 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_27_to_35_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:45,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:45,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1023643408, now seen corresponding path program 1 times [2025-02-06 14:36:45,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:45,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515622056] [2025-02-06 14:36:45,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:45,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:45,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-02-06 14:36:45,937 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-02-06 14:36:45,937 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:45,937 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:46,099 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 14:36:46,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:46,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515622056] [2025-02-06 14:36:46,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515622056] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:46,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:46,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595692407] [2025-02-06 14:36:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:46,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:46,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:46,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:46,101 INFO L87 Difference]: Start difference. First operand 274 states and 278 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 14:36:46,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:46,164 INFO L93 Difference]: Finished difference Result 274 states and 278 transitions. [2025-02-06 14:36:46,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:46,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 58 [2025-02-06 14:36:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:46,166 INFO L225 Difference]: With dead ends: 274 [2025-02-06 14:36:46,166 INFO L226 Difference]: Without dead ends: 273 [2025-02-06 14:36:46,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:46,167 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 275 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:46,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 959 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 14:36:46,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2025-02-06 14:36:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2025-02-06 14:36:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 164 states have (on average 1.6219512195121952) internal successors, (266), 265 states have internal predecessors, (266), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:46,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2025-02-06 14:36:46,173 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 58 [2025-02-06 14:36:46,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:46,173 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2025-02-06 14:36:46,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 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 14:36:46,173 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2025-02-06 14:36:46,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-02-06 14:36:46,173 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:46,174 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, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:46,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-06 14:36:46,174 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_27_to_35_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:46,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1668174682, now seen corresponding path program 1 times [2025-02-06 14:36:46,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:46,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630783050] [2025-02-06 14:36:46,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:46,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:46,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-02-06 14:36:46,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-02-06 14:36:46,186 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:46,186 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:46,304 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 14:36:46,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630783050] [2025-02-06 14:36:46,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630783050] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:46,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:46,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:46,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496636795] [2025-02-06 14:36:46,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:46,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:46,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:46,305 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:46,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:46,306 INFO L87 Difference]: Start difference. First operand 273 states and 277 transitions. Second operand has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 14:36:46,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:46,449 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2025-02-06 14:36:46,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:46,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 59 [2025-02-06 14:36:46,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:46,451 INFO L225 Difference]: With dead ends: 369 [2025-02-06 14:36:46,451 INFO L226 Difference]: Without dead ends: 367 [2025-02-06 14:36:46,451 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 14:36:46,451 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 145 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:46,452 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 904 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:36:46,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-02-06 14:36:46,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 276. [2025-02-06 14:36:46,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 167 states have (on average 1.6107784431137724) internal successors, (269), 268 states have internal predecessors, (269), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2025-02-06 14:36:46,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 280 transitions. [2025-02-06 14:36:46,460 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 280 transitions. Word has length 59 [2025-02-06 14:36:46,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:46,460 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 280 transitions. [2025-02-06 14:36:46,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 14:36:46,460 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 280 transitions. [2025-02-06 14:36:46,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-02-06 14:36:46,460 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:46,460 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, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:46,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 14:36:46,461 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:46,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:46,461 INFO L85 PathProgramCache]: Analyzing trace with hash 174888596, now seen corresponding path program 1 times [2025-02-06 14:36:46,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:46,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147408768] [2025-02-06 14:36:46,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:46,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:46,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-02-06 14:36:46,474 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-02-06 14:36:46,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:46,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:46,578 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 14:36:46,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:46,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147408768] [2025-02-06 14:36:46,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147408768] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:46,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:46,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:36:46,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122883880] [2025-02-06 14:36:46,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:46,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:36:46,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:46,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:36:46,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:36:46,579 INFO L87 Difference]: Start difference. First operand 276 states and 280 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 14:36:46,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:46,857 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2025-02-06 14:36:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:36:46,858 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 60 [2025-02-06 14:36:46,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:46,859 INFO L225 Difference]: With dead ends: 369 [2025-02-06 14:36:46,859 INFO L226 Difference]: Without dead ends: 357 [2025-02-06 14:36:46,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 14:36:46,859 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 193 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:46,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 570 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:46,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-06 14:36:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 291. [2025-02-06 14:36:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 181 states have (on average 1.5635359116022098) internal successors, (283), 281 states have internal predecessors, (283), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2025-02-06 14:36:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 295 transitions. [2025-02-06 14:36:46,867 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 295 transitions. Word has length 60 [2025-02-06 14:36:46,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:46,867 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 295 transitions. [2025-02-06 14:36:46,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 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 14:36:46,867 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 295 transitions. [2025-02-06 14:36:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-02-06 14:36:46,869 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:46,869 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, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:46,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-02-06 14:36:46,869 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_27_to_35_0Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:46,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:46,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1093071320, now seen corresponding path program 1 times [2025-02-06 14:36:46,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:46,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373904381] [2025-02-06 14:36:46,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:46,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:46,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-06 14:36:46,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 14:36:46,891 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:46,891 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:46,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40543158] [2025-02-06 14:36:46,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:46,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:46,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:46,894 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 14:36:46,899 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 14:36:46,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-02-06 14:36:46,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-02-06 14:36:46,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:46,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:46,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-06 14:36:46,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:46,984 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 14:36:47,084 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 26 treesize of output 14 [2025-02-06 14:36:47,097 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 14:36:47,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:47,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:47,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373904381] [2025-02-06 14:36:47,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:47,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40543158] [2025-02-06 14:36:47,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40543158] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:47,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:36:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515606297] [2025-02-06 14:36:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:47,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:36:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:47,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:36:47,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:47,099 INFO L87 Difference]: Start difference. First operand 291 states and 295 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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 14:36:47,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:47,344 INFO L93 Difference]: Finished difference Result 359 states and 365 transitions. [2025-02-06 14:36:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:36:47,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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 61 [2025-02-06 14:36:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:47,346 INFO L225 Difference]: With dead ends: 359 [2025-02-06 14:36:47,346 INFO L226 Difference]: Without dead ends: 357 [2025-02-06 14:36:47,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:36:47,346 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 444 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:47,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 791 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:47,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-06 14:36:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 289. [2025-02-06 14:36:47,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 181 states have (on average 1.5524861878453038) internal successors, (281), 279 states have internal predecessors, (281), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2025-02-06 14:36:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 293 transitions. [2025-02-06 14:36:47,353 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 293 transitions. Word has length 61 [2025-02-06 14:36:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:47,353 INFO L471 AbstractCegarLoop]: Abstraction has 289 states and 293 transitions. [2025-02-06 14:36:47,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 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 14:36:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 293 transitions. [2025-02-06 14:36:47,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-02-06 14:36:47,354 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:47,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:47,360 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 14:36:47,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:47,558 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_27_to_35_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:47,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:47,559 INFO L85 PathProgramCache]: Analyzing trace with hash -474527348, now seen corresponding path program 1 times [2025-02-06 14:36:47,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:47,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49526037] [2025-02-06 14:36:47,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:47,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:47,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-06 14:36:47,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-06 14:36:47,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:47,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:47,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1608662232] [2025-02-06 14:36:47,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:47,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:47,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:47,600 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 14:36:47,602 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 14:36:47,654 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-02-06 14:36:47,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-02-06 14:36:47,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:47,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:47,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 14:36:47,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:47,683 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 14:36:47,780 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 14:36:47,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:47,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:47,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49526037] [2025-02-06 14:36:47,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:47,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608662232] [2025-02-06 14:36:47,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608662232] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:47,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:47,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 14:36:47,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83918319] [2025-02-06 14:36:47,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:47,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 14:36:47,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:47,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 14:36:47,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:47,781 INFO L87 Difference]: Start difference. First operand 289 states and 293 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 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 14:36:48,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:48,046 INFO L93 Difference]: Finished difference Result 374 states and 385 transitions. [2025-02-06 14:36:48,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 14:36:48,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 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 62 [2025-02-06 14:36:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:48,048 INFO L225 Difference]: With dead ends: 374 [2025-02-06 14:36:48,048 INFO L226 Difference]: Without dead ends: 373 [2025-02-06 14:36:48,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:48,048 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 142 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:48,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1041 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2025-02-06 14:36:48,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 326. [2025-02-06 14:36:48,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 216 states have (on average 1.6018518518518519) internal successors, (346), 315 states have internal predecessors, (346), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:48,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 360 transitions. [2025-02-06 14:36:48,055 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 360 transitions. Word has length 62 [2025-02-06 14:36:48,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:48,055 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 360 transitions. [2025-02-06 14:36:48,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 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 14:36:48,055 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 360 transitions. [2025-02-06 14:36:48,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-02-06 14:36:48,055 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:48,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:48,062 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 14:36:48,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:48,256 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_27_to_35_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:48,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:48,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1825445802, now seen corresponding path program 1 times [2025-02-06 14:36:48,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:48,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256822199] [2025-02-06 14:36:48,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:48,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:48,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-06 14:36:48,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 14:36:48,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:48,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940477313] [2025-02-06 14:36:48,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:48,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:48,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:48,277 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 14:36:48,278 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 14:36:48,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-02-06 14:36:48,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-02-06 14:36:48,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:48,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:48,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-06 14:36:48,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:48,375 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 14:36:48,535 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 36 treesize of output 13 [2025-02-06 14:36:48,557 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 29 treesize of output 13 [2025-02-06 14:36:48,570 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 14:36:48,570 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:48,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256822199] [2025-02-06 14:36:48,571 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:48,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940477313] [2025-02-06 14:36:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940477313] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:48,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:48,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 14:36:48,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216570504] [2025-02-06 14:36:48,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:48,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:36:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:48,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:36:48,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:36:48,572 INFO L87 Difference]: Start difference. First operand 326 states and 360 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 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 14:36:48,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:48,883 INFO L93 Difference]: Finished difference Result 363 states and 368 transitions. [2025-02-06 14:36:48,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:36:48,883 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 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 63 [2025-02-06 14:36:48,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:48,885 INFO L225 Difference]: With dead ends: 363 [2025-02-06 14:36:48,885 INFO L226 Difference]: Without dead ends: 362 [2025-02-06 14:36:48,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:36:48,885 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 510 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:48,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 866 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:48,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2025-02-06 14:36:48,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 325. [2025-02-06 14:36:48,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 216 states have (on average 1.5972222222222223) internal successors, (345), 314 states have internal predecessors, (345), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:48,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 359 transitions. [2025-02-06 14:36:48,893 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 359 transitions. Word has length 63 [2025-02-06 14:36:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:48,894 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 359 transitions. [2025-02-06 14:36:48,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 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 14:36:48,894 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 359 transitions. [2025-02-06 14:36:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-02-06 14:36:48,894 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:48,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:48,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-06 14:36:49,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:49,095 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_27_to_35_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:49,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash -754244918, now seen corresponding path program 1 times [2025-02-06 14:36:49,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:49,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934930206] [2025-02-06 14:36:49,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:49,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:49,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 14:36:49,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 14:36:49,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:49,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:49,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555228730] [2025-02-06 14:36:49,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:49,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:49,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:49,116 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 14:36:49,120 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 14:36:49,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-02-06 14:36:49,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-02-06 14:36:49,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:49,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:49,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 14:36:49,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:49,211 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 14:36:49,310 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 14:36:49,342 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 14:36:49,342 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:49,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:49,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934930206] [2025-02-06 14:36:49,343 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:49,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555228730] [2025-02-06 14:36:49,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555228730] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:49,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:49,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-06 14:36:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100842365] [2025-02-06 14:36:49,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:49,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:36:49,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:49,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:36:49,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-02-06 14:36:49,344 INFO L87 Difference]: Start difference. First operand 325 states and 359 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 14:36:49,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:49,587 INFO L93 Difference]: Finished difference Result 373 states and 382 transitions. [2025-02-06 14:36:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 14:36:49,587 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 64 [2025-02-06 14:36:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:49,589 INFO L225 Difference]: With dead ends: 373 [2025-02-06 14:36:49,589 INFO L226 Difference]: Without dead ends: 372 [2025-02-06 14:36:49,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-02-06 14:36:49,590 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 228 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:49,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 857 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:49,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2025-02-06 14:36:49,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 327. [2025-02-06 14:36:49,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 218 states have (on average 1.591743119266055) internal successors, (347), 316 states have internal predecessors, (347), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:49,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 361 transitions. [2025-02-06 14:36:49,597 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 361 transitions. Word has length 64 [2025-02-06 14:36:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:49,597 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 361 transitions. [2025-02-06 14:36:49,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 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 14:36:49,598 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 361 transitions. [2025-02-06 14:36:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-02-06 14:36:49,598 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:49,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:49,605 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 14:36:49,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:49,799 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_27_to_35_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:49,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:49,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1906755884, now seen corresponding path program 1 times [2025-02-06 14:36:49,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:49,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355264695] [2025-02-06 14:36:49,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:49,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:49,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 14:36:49,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 14:36:49,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:49,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:49,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685242624] [2025-02-06 14:36:49,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:49,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:49,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:49,825 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 14:36:49,827 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 14:36:49,886 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-02-06 14:36:49,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-02-06 14:36:49,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:49,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:49,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 14:36:49,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:49,924 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 14:36:50,043 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 36 treesize of output 13 [2025-02-06 14:36:50,081 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 36 treesize of output 16 [2025-02-06 14:36:50,096 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 14:36:50,097 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:50,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:50,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355264695] [2025-02-06 14:36:50,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:50,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685242624] [2025-02-06 14:36:50,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685242624] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:50,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:50,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 14:36:50,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16424824] [2025-02-06 14:36:50,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:50,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:36:50,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:50,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:36:50,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:50,098 INFO L87 Difference]: Start difference. First operand 327 states and 361 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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 14:36:50,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:50,402 INFO L93 Difference]: Finished difference Result 364 states and 369 transitions. [2025-02-06 14:36:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:36:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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 65 [2025-02-06 14:36:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:50,403 INFO L225 Difference]: With dead ends: 364 [2025-02-06 14:36:50,403 INFO L226 Difference]: Without dead ends: 363 [2025-02-06 14:36:50,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2025-02-06 14:36:50,407 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 438 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 863 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:50,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 863 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:50,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2025-02-06 14:36:50,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 326. [2025-02-06 14:36:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 218 states have (on average 1.5871559633027523) internal successors, (346), 315 states have internal predecessors, (346), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:50,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 360 transitions. [2025-02-06 14:36:50,417 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 360 transitions. Word has length 65 [2025-02-06 14:36:50,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:50,417 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 360 transitions. [2025-02-06 14:36:50,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 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 14:36:50,418 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 360 transitions. [2025-02-06 14:36:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-02-06 14:36:50,418 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:50,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:50,428 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 14:36:50,618 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,SelfDestructingSolverStorable21 [2025-02-06 14:36:50,619 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_27_to_35_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:50,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:50,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1020109832, now seen corresponding path program 1 times [2025-02-06 14:36:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:50,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635420595] [2025-02-06 14:36:50,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:50,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:50,627 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-06 14:36:50,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 14:36:50,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:50,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:50,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986498124] [2025-02-06 14:36:50,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:50,639 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 14:36:50,641 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 14:36:50,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-06 14:36:50,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 14:36:50,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:50,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:50,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 14:36:50,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:50,734 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 14:36:50,825 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 14:36:50,879 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 14:36:50,880 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:50,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:50,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635420595] [2025-02-06 14:36:50,880 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:50,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986498124] [2025-02-06 14:36:50,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986498124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:50,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:50,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 14:36:50,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322980035] [2025-02-06 14:36:50,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:50,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 14:36:50,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:50,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 14:36:50,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:50,882 INFO L87 Difference]: Start difference. First operand 326 states and 360 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 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 14:36:51,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:51,181 INFO L93 Difference]: Finished difference Result 372 states and 379 transitions. [2025-02-06 14:36:51,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 14:36:51,181 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 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 66 [2025-02-06 14:36:51,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:51,183 INFO L225 Difference]: With dead ends: 372 [2025-02-06 14:36:51,183 INFO L226 Difference]: Without dead ends: 371 [2025-02-06 14:36:51,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-02-06 14:36:51,184 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 150 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:51,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1209 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:36:51,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2025-02-06 14:36:51,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 328. [2025-02-06 14:36:51,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 220 states have (on average 1.5818181818181818) internal successors, (348), 317 states have internal predecessors, (348), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:51,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 362 transitions. [2025-02-06 14:36:51,193 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 362 transitions. Word has length 66 [2025-02-06 14:36:51,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:51,193 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 362 transitions. [2025-02-06 14:36:51,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 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 14:36:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 362 transitions. [2025-02-06 14:36:51,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-02-06 14:36:51,193 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:51,193 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:51,201 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 14:36:51,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:51,394 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_27_to_35_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:51,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:51,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1558633810, now seen corresponding path program 1 times [2025-02-06 14:36:51,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:51,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820050587] [2025-02-06 14:36:51,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:51,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:51,402 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 14:36:51,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 14:36:51,413 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:51,413 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:51,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [962824006] [2025-02-06 14:36:51,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:51,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:51,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:51,415 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 14:36:51,423 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 14:36:51,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-02-06 14:36:51,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-02-06 14:36:51,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:51,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:51,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-02-06 14:36:51,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:51,526 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 14:36:51,621 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 36 treesize of output 13 [2025-02-06 14:36:51,691 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 43 treesize of output 19 [2025-02-06 14:36:51,710 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 14:36:51,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:51,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:51,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820050587] [2025-02-06 14:36:51,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:51,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962824006] [2025-02-06 14:36:51,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962824006] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:51,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:51,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:36:51,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38837154] [2025-02-06 14:36:51,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:51,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:36:51,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:51,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:36:51,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:36:51,712 INFO L87 Difference]: Start difference. First operand 328 states and 362 transitions. Second operand has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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 14:36:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:51,960 INFO L93 Difference]: Finished difference Result 365 states and 370 transitions. [2025-02-06 14:36:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 14:36:51,960 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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 67 [2025-02-06 14:36:51,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:51,961 INFO L225 Difference]: With dead ends: 365 [2025-02-06 14:36:51,961 INFO L226 Difference]: Without dead ends: 364 [2025-02-06 14:36:51,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=187, Unknown=0, NotChecked=0, Total=272 [2025-02-06 14:36:51,962 INFO L435 NwaCegarLoop]: 161 mSDtfsCounter, 488 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:51,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 866 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:51,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2025-02-06 14:36:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 327. [2025-02-06 14:36:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 220 states have (on average 1.5772727272727274) internal successors, (347), 316 states have internal predecessors, (347), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:51,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 361 transitions. [2025-02-06 14:36:51,969 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 361 transitions. Word has length 67 [2025-02-06 14:36:51,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:51,969 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 361 transitions. [2025-02-06 14:36:51,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 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 14:36:51,969 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 361 transitions. [2025-02-06 14:36:51,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-02-06 14:36:51,970 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:51,970 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:51,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-06 14:36:52,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:52,174 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting func_to_recursive_line_27_to_35_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:52,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:52,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1073007942, now seen corresponding path program 1 times [2025-02-06 14:36:52,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:52,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132520617] [2025-02-06 14:36:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:52,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-06 14:36:52,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-06 14:36:52,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:52,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:36:52,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112093780] [2025-02-06 14:36:52,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:52,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:52,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:52,217 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 14:36:52,218 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 14:36:52,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-02-06 14:36:52,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-02-06 14:36:52,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:52,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:52,324 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-02-06 14:36:52,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:52,329 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 14:36:52,429 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 14:36:52,512 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 14:36:52,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:52,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:52,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132520617] [2025-02-06 14:36:52,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:36:52,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112093780] [2025-02-06 14:36:52,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112093780] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:52,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:52,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-06 14:36:52,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019329411] [2025-02-06 14:36:52,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:52,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 14:36:52,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:52,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 14:36:52,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-02-06 14:36:52,514 INFO L87 Difference]: Start difference. First operand 327 states and 361 transitions. Second operand has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 14:36:52,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:52,753 INFO L93 Difference]: Finished difference Result 371 states and 376 transitions. [2025-02-06 14:36:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 14:36:52,753 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 68 [2025-02-06 14:36:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:52,754 INFO L225 Difference]: With dead ends: 371 [2025-02-06 14:36:52,754 INFO L226 Difference]: Without dead ends: 370 [2025-02-06 14:36:52,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-02-06 14:36:52,755 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 144 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:52,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 1085 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2025-02-06 14:36:52,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 329. [2025-02-06 14:36:52,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 222 states have (on average 1.572072072072072) internal successors, (349), 318 states have internal predecessors, (349), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:52,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 363 transitions. [2025-02-06 14:36:52,763 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 363 transitions. Word has length 68 [2025-02-06 14:36:52,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:52,763 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 363 transitions. [2025-02-06 14:36:52,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 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 14:36:52,764 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 363 transitions. [2025-02-06 14:36:52,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-02-06 14:36:52,764 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:52,764 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:52,771 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 14:36:52,964 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,SelfDestructingSolverStorable24 [2025-02-06 14:36:52,965 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting func_to_recursive_line_27_to_35_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:52,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:52,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1096492080, now seen corresponding path program 1 times [2025-02-06 14:36:52,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:52,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121215548] [2025-02-06 14:36:52,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:52,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:52,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-02-06 14:36:52,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-02-06 14:36:52,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:52,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:53,108 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 14:36:53,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:53,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121215548] [2025-02-06 14:36:53,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121215548] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:53,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:53,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 14:36:53,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877224757] [2025-02-06 14:36:53,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:53,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 14:36:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:53,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 14:36:53,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 14:36:53,110 INFO L87 Difference]: Start difference. First operand 329 states and 363 transitions. Second operand has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 14:36:53,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:53,272 INFO L93 Difference]: Finished difference Result 359 states and 367 transitions. [2025-02-06 14:36:53,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 14:36:53,272 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 69 [2025-02-06 14:36:53,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:53,273 INFO L225 Difference]: With dead ends: 359 [2025-02-06 14:36:53,273 INFO L226 Difference]: Without dead ends: 358 [2025-02-06 14:36:53,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-02-06 14:36:53,274 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 134 mSDsluCounter, 876 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:53,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1088 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:36:53,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2025-02-06 14:36:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 330. [2025-02-06 14:36:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 223 states have (on average 1.5695067264573992) internal successors, (350), 319 states have internal predecessors, (350), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 364 transitions. [2025-02-06 14:36:53,298 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 364 transitions. Word has length 69 [2025-02-06 14:36:53,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:53,298 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 364 transitions. [2025-02-06 14:36:53,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 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 14:36:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 364 transitions. [2025-02-06 14:36:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-02-06 14:36:53,299 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:53,299 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:53,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-06 14:36:53,299 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:53,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:53,299 INFO L85 PathProgramCache]: Analyzing trace with hash 368483972, now seen corresponding path program 1 times [2025-02-06 14:36:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:53,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871699208] [2025-02-06 14:36:53,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:53,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:53,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 14:36:53,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 14:36:53,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:53,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:53,631 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 14:36:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871699208] [2025-02-06 14:36:53,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871699208] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:53,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:53,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 14:36:53,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722568983] [2025-02-06 14:36:53,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:53,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 14:36:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:53,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 14:36:53,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 14:36:53,633 INFO L87 Difference]: Start difference. First operand 330 states and 364 transitions. Second operand has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 14:36:53,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:53,772 INFO L93 Difference]: Finished difference Result 358 states and 366 transitions. [2025-02-06 14:36:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 14:36:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 70 [2025-02-06 14:36:53,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:53,773 INFO L225 Difference]: With dead ends: 358 [2025-02-06 14:36:53,773 INFO L226 Difference]: Without dead ends: 357 [2025-02-06 14:36:53,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-02-06 14:36:53,774 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 129 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:53,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1041 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 14:36:53,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-02-06 14:36:53,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 331. [2025-02-06 14:36:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 224 states have (on average 1.5669642857142858) internal successors, (351), 320 states have internal predecessors, (351), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:53,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2025-02-06 14:36:53,788 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 70 [2025-02-06 14:36:53,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:53,788 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2025-02-06 14:36:53,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 14:36:53,788 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2025-02-06 14:36:53,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-02-06 14:36:53,789 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:53,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 14:36:53,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-06 14:36:53,789 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:53,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:53,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1200888136, now seen corresponding path program 1 times [2025-02-06 14:36:53,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:53,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653861892] [2025-02-06 14:36:53,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:53,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:53,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-02-06 14:36:53,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-02-06 14:36:53,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:53,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:53,893 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 14:36:53,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:53,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653861892] [2025-02-06 14:36:53,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653861892] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:53,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 14:36:53,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 14:36:53,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550585763] [2025-02-06 14:36:53,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:53,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 14:36:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:53,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 14:36:53,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 14:36:53,895 INFO L87 Difference]: Start difference. First operand 331 states and 365 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 14:36:54,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:36:54,123 INFO L93 Difference]: Finished difference Result 366 states and 370 transitions. [2025-02-06 14:36:54,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 14:36:54,123 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 72 [2025-02-06 14:36:54,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:36:54,124 INFO L225 Difference]: With dead ends: 366 [2025-02-06 14:36:54,124 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 14:36:54,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 14:36:54,125 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 148 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 14:36:54,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 549 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 14:36:54,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 14:36:54,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 331. [2025-02-06 14:36:54,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 224 states have (on average 1.5223214285714286) internal successors, (341), 320 states have internal predecessors, (341), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:36:54,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 355 transitions. [2025-02-06 14:36:54,131 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 355 transitions. Word has length 72 [2025-02-06 14:36:54,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:36:54,131 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 355 transitions. [2025-02-06 14:36:54,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 14:36:54,131 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 355 transitions. [2025-02-06 14:36:54,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-02-06 14:36:54,132 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:36:54,132 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, 1, 1, 1, 1, 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 14:36:54,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-06 14:36:54,132 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting func_to_recursive_line_27_to_35_0Err55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:36:54,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:36:54,132 INFO L85 PathProgramCache]: Analyzing trace with hash -450940358, now seen corresponding path program 1 times [2025-02-06 14:36:54,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:36:54,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245412618] [2025-02-06 14:36:54,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:54,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:36:54,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:36:54,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:36:54,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:54,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:54,343 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 14:36:54,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:36:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245412618] [2025-02-06 14:36:54,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245412618] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:36:54,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011782866] [2025-02-06 14:36:54,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:36:54,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:36:54,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:36:54,347 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 14:36:54,351 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 14:36:54,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-02-06 14:36:54,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-02-06 14:36:54,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:36:54,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:36:54,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 14:36:54,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:36:54,561 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 36 treesize of output 13 [2025-02-06 14:36:54,604 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 14:36:54,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:36:54,617 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 14:36:54,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011782866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 14:36:54,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:36:54,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2025-02-06 14:36:54,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596381919] [2025-02-06 14:36:54,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 14:36:54,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 14:36:54,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:36:54,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 14:36:54,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-02-06 14:36:54,618 INFO L87 Difference]: Start difference. First operand 331 states and 355 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 14:36:58,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 14:37:02,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-02-06 14:37:03,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:03,012 INFO L93 Difference]: Finished difference Result 334 states and 362 transitions. [2025-02-06 14:37:03,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-06 14:37:03,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 74 [2025-02-06 14:37:03,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:03,014 INFO L225 Difference]: With dead ends: 334 [2025-02-06 14:37:03,014 INFO L226 Difference]: Without dead ends: 332 [2025-02-06 14:37:03,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2025-02-06 14:37:03,014 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 457 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:03,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 770 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 580 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2025-02-06 14:37:03,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-02-06 14:37:03,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 329. [2025-02-06 14:37:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 224 states have (on average 1.5133928571428572) internal successors, (339), 318 states have internal predecessors, (339), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:37:03,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 353 transitions. [2025-02-06 14:37:03,021 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 353 transitions. Word has length 74 [2025-02-06 14:37:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:03,021 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 353 transitions. [2025-02-06 14:37:03,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 14:37:03,021 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 353 transitions. [2025-02-06 14:37:03,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-02-06 14:37:03,022 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:03,022 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, 1, 1, 1, 1, 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 14:37:03,037 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 14:37:03,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-02-06 14:37:03,223 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting func_to_recursive_line_27_to_35_0Err54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:03,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:03,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1094249012, now seen corresponding path program 1 times [2025-02-06 14:37:03,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:03,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615612085] [2025-02-06 14:37:03,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:03,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:03,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 14:37:03,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:37:03,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:03,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:03,446 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 14:37:03,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615612085] [2025-02-06 14:37:03,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615612085] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:37:03,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615633351] [2025-02-06 14:37:03,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:03,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:03,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:03,449 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 14:37:03,452 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 14:37:03,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-02-06 14:37:03,548 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-02-06 14:37:03,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:03,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:03,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-02-06 14:37:03,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:03,676 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 38 treesize of output 15 [2025-02-06 14:37:03,736 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 14:37:03,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:03,754 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:03,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:03,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615633351] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:37:03,958 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 14:37:03,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2025-02-06 14:37:03,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302611104] [2025-02-06 14:37:03,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:03,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 14:37:03,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:03,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 14:37:03,959 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:37:03,959 INFO L87 Difference]: Start difference. First operand 329 states and 353 transitions. Second operand has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:37:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:04,963 INFO L93 Difference]: Finished difference Result 357 states and 365 transitions. [2025-02-06 14:37:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:37:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 75 [2025-02-06 14:37:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:04,965 INFO L225 Difference]: With dead ends: 357 [2025-02-06 14:37:04,965 INFO L226 Difference]: Without dead ends: 356 [2025-02-06 14:37:04,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2025-02-06 14:37:04,965 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 690 mSDsluCounter, 1766 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1938 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:04,965 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1938 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-06 14:37:04,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2025-02-06 14:37:04,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 328. [2025-02-06 14:37:04,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 224 states have (on average 1.5089285714285714) internal successors, (338), 317 states have internal predecessors, (338), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2025-02-06 14:37:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 352 transitions. [2025-02-06 14:37:04,982 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 352 transitions. Word has length 75 [2025-02-06 14:37:04,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:04,982 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 352 transitions. [2025-02-06 14:37:04,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-02-06 14:37:04,982 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 352 transitions. [2025-02-06 14:37:04,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-02-06 14:37:04,983 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:04,983 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, 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 14:37:04,989 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 14:37:05,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:05,183 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting func_to_recursive_line_27_to_35_0Err53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:05,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:05,184 INFO L85 PathProgramCache]: Analyzing trace with hash 438019192, now seen corresponding path program 1 times [2025-02-06 14:37:05,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:05,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247066310] [2025-02-06 14:37:05,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:05,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:05,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 14:37:05,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 14:37:05,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:05,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:05,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770540038] [2025-02-06 14:37:05,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:05,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:05,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:05,212 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 14:37:05,217 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 14:37:05,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-02-06 14:37:05,339 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-02-06 14:37:05,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:05,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:05,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-02-06 14:37:05,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:05,349 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 14:37:05,568 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 14:37:05,634 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 14:37:05,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:05,929 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 14:37:05,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:05,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247066310] [2025-02-06 14:37:05,929 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:05,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770540038] [2025-02-06 14:37:05,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770540038] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:37:05,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:37:05,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 21 [2025-02-06 14:37:05,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132417308] [2025-02-06 14:37:05,929 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:05,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-02-06 14:37:05,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:05,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-02-06 14:37:05,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2025-02-06 14:37:05,930 INFO L87 Difference]: Start difference. First operand 328 states and 352 transitions. Second operand has 22 states, 19 states have (on average 7.421052631578948) internal successors, (141), 17 states have internal predecessors, (141), 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 14:37:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:07,555 INFO L93 Difference]: Finished difference Result 566 states and 576 transitions. [2025-02-06 14:37:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-06 14:37:07,555 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 7.421052631578948) internal successors, (141), 17 states have internal predecessors, (141), 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 76 [2025-02-06 14:37:07,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:07,557 INFO L225 Difference]: With dead ends: 566 [2025-02-06 14:37:07,557 INFO L226 Difference]: Without dead ends: 564 [2025-02-06 14:37:07,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=212, Invalid=910, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:37:07,557 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 1358 mSDsluCounter, 2032 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1360 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:07,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1360 Valid, 2197 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-06 14:37:07,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-06 14:37:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 446. [2025-02-06 14:37:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 334 states have (on average 1.598802395209581) internal successors, (534), 429 states have internal predecessors, (534), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2025-02-06 14:37:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 560 transitions. [2025-02-06 14:37:07,566 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 560 transitions. Word has length 76 [2025-02-06 14:37:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:07,566 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 560 transitions. [2025-02-06 14:37:07,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 7.421052631578948) internal successors, (141), 17 states have internal predecessors, (141), 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 14:37:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 560 transitions. [2025-02-06 14:37:07,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-06 14:37:07,567 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:07,567 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, 1, 1, 1, 1, 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 14:37:07,575 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-02-06 14:37:07,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:07,771 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting func_to_recursive_line_27_to_35_0Err51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:07,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash 29654710, now seen corresponding path program 1 times [2025-02-06 14:37:07,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:07,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251830766] [2025-02-06 14:37:07,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:07,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:07,779 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 14:37:07,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 14:37:07,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:07,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:07,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452455287] [2025-02-06 14:37:07,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:07,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:07,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:07,789 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 14:37:07,796 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 14:37:07,866 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-06 14:37:07,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-06 14:37:07,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:07,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:07,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-02-06 14:37:07,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:07,910 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 14:37:08,005 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 14:37:08,079 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 14:37:08,079 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251830766] [2025-02-06 14:37:08,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:08,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452455287] [2025-02-06 14:37:08,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452455287] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:37:08,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:37:08,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-02-06 14:37:08,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559909271] [2025-02-06 14:37:08,430 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:08,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-06 14:37:08,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:08,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-06 14:37:08,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-02-06 14:37:08,433 INFO L87 Difference]: Start difference. First operand 446 states and 560 transitions. Second operand has 12 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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 14:37:09,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:09,019 INFO L93 Difference]: Finished difference Result 514 states and 568 transitions. [2025-02-06 14:37:09,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 14:37:09,020 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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 78 [2025-02-06 14:37:09,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:09,021 INFO L225 Difference]: With dead ends: 514 [2025-02-06 14:37:09,021 INFO L226 Difference]: Without dead ends: 513 [2025-02-06 14:37:09,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=470, Unknown=0, NotChecked=0, Total=600 [2025-02-06 14:37:09,022 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 421 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:09,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1406 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 14:37:09,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2025-02-06 14:37:09,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 446. [2025-02-06 14:37:09,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 334 states have (on average 1.595808383233533) internal successors, (533), 429 states have internal predecessors, (533), 10 states have call successors, (10), 6 states have call predecessors, (10), 9 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2025-02-06 14:37:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 559 transitions. [2025-02-06 14:37:09,039 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 559 transitions. Word has length 78 [2025-02-06 14:37:09,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:09,039 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 559 transitions. [2025-02-06 14:37:09,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.4) internal successors, (74), 10 states have internal predecessors, (74), 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 14:37:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 559 transitions. [2025-02-06 14:37:09,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-06 14:37:09,040 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:09,040 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, 1, 1, 1, 1, 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 14:37:09,047 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 14:37:09,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:09,244 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting func_to_recursive_line_27_to_35_0Err50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:09,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:09,244 INFO L85 PathProgramCache]: Analyzing trace with hash 919296200, now seen corresponding path program 1 times [2025-02-06 14:37:09,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:09,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393185756] [2025-02-06 14:37:09,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:09,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:09,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 14:37:09,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 14:37:09,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:09,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1196774975] [2025-02-06 14:37:09,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:09,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:09,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:09,279 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 14:37:09,286 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 14:37:09,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-06 14:37:09,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-06 14:37:09,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:09,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:09,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-02-06 14:37:09,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:09,398 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 14:37:09,489 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 25 treesize of output 13 [2025-02-06 14:37:09,553 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 29 treesize of output 13 [2025-02-06 14:37:09,571 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:09,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:30,002 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:30,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:30,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393185756] [2025-02-06 14:37:30,002 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:30,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196774975] [2025-02-06 14:37:30,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196774975] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:37:30,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:37:30,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2025-02-06 14:37:30,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987893877] [2025-02-06 14:37:30,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:30,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2025-02-06 14:37:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:30,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2025-02-06 14:37:30,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=304, Unknown=5, NotChecked=0, Total=380 [2025-02-06 14:37:30,004 INFO L87 Difference]: Start difference. First operand 446 states and 559 transitions. Second operand has 20 states, 17 states have (on average 8.647058823529411) internal successors, (147), 17 states have internal predecessors, (147), 5 states have call successors, (6), 5 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 14:37:32,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:32,214 INFO L93 Difference]: Finished difference Result 473 states and 567 transitions. [2025-02-06 14:37:32,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-02-06 14:37:32,214 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 8.647058823529411) internal successors, (147), 17 states have internal predecessors, (147), 5 states have call successors, (6), 5 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 79 [2025-02-06 14:37:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:32,217 INFO L225 Difference]: With dead ends: 473 [2025-02-06 14:37:32,217 INFO L226 Difference]: Without dead ends: 471 [2025-02-06 14:37:32,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 135 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 20.8s TimeCoverageRelationStatistics Valid=224, Invalid=701, Unknown=5, NotChecked=0, Total=930 [2025-02-06 14:37:32,218 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 1025 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:32,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1473 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-06 14:37:32,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2025-02-06 14:37:32,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 446. [2025-02-06 14:37:32,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 335 states have (on average 1.5791044776119403) internal successors, (529), 428 states have internal predecessors, (529), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 11 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 14:37:32,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 557 transitions. [2025-02-06 14:37:32,232 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 557 transitions. Word has length 79 [2025-02-06 14:37:32,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:32,233 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 557 transitions. [2025-02-06 14:37:32,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 8.647058823529411) internal successors, (147), 17 states have internal predecessors, (147), 5 states have call successors, (6), 5 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 14:37:32,235 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 557 transitions. [2025-02-06 14:37:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-06 14:37:32,235 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:32,235 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 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 14:37:32,242 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 14:37:32,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:32,436 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting func_to_recursive_line_27_to_35_0Err49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:32,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:32,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1566588684, now seen corresponding path program 1 times [2025-02-06 14:37:32,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:32,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158185835] [2025-02-06 14:37:32,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:32,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:32,448 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 14:37:32,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 14:37:32,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:32,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:32,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1542475783] [2025-02-06 14:37:32,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:32,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:32,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:32,466 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 14:37:32,469 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 14:37:32,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-06 14:37:32,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-06 14:37:32,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:32,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:32,595 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-02-06 14:37:32,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:32,600 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 14:37:32,697 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 14:37:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:32,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:33,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:33,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158185835] [2025-02-06 14:37:33,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:33,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542475783] [2025-02-06 14:37:33,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542475783] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:37:33,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:37:33,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-02-06 14:37:33,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435354506] [2025-02-06 14:37:33,313 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:33,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 14:37:33,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:33,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 14:37:33,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:37:33,314 INFO L87 Difference]: Start difference. First operand 446 states and 557 transitions. Second operand has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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 14:37:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:33,747 INFO L93 Difference]: Finished difference Result 512 states and 565 transitions. [2025-02-06 14:37:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 14:37:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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 80 [2025-02-06 14:37:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:33,753 INFO L225 Difference]: With dead ends: 512 [2025-02-06 14:37:33,753 INFO L226 Difference]: Without dead ends: 511 [2025-02-06 14:37:33,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2025-02-06 14:37:33,754 INFO L435 NwaCegarLoop]: 181 mSDtfsCounter, 420 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1268 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:33,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1268 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 14:37:33,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2025-02-06 14:37:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 446. [2025-02-06 14:37:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 335 states have (on average 1.5761194029850747) internal successors, (528), 428 states have internal predecessors, (528), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 11 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 14:37:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 556 transitions. [2025-02-06 14:37:33,765 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 556 transitions. Word has length 80 [2025-02-06 14:37:33,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:33,765 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 556 transitions. [2025-02-06 14:37:33,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.909090909090909) internal successors, (76), 11 states have internal predecessors, (76), 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 14:37:33,765 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 556 transitions. [2025-02-06 14:37:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-06 14:37:33,767 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:33,767 INFO L218 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 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 14:37:33,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-06 14:37:33,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:33,971 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting func_to_recursive_line_27_to_35_0Err48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:33,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:33,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1319608762, now seen corresponding path program 1 times [2025-02-06 14:37:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:33,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392226583] [2025-02-06 14:37:33,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:33,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:33,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 14:37:33,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 14:37:33,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:33,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:33,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1895565965] [2025-02-06 14:37:33,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:33,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:33,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:33,997 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 14:37:33,999 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 14:37:34,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-06 14:37:34,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-06 14:37:34,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:34,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:34,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-02-06 14:37:34,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:34,109 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 14:37:34,205 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 25 treesize of output 13 [2025-02-06 14:37:34,289 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 36 treesize of output 16 [2025-02-06 14:37:34,318 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:34,319 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:34,824 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:34,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:34,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392226583] [2025-02-06 14:37:34,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:34,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1895565965] [2025-02-06 14:37:34,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1895565965] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 14:37:34,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 14:37:34,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2025-02-06 14:37:34,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204299742] [2025-02-06 14:37:34,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:34,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-02-06 14:37:34,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:34,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-02-06 14:37:34,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2025-02-06 14:37:34,825 INFO L87 Difference]: Start difference. First operand 446 states and 556 transitions. Second operand has 21 states, 18 states have (on average 8.333333333333334) internal successors, (150), 18 states have internal predecessors, (150), 5 states have call successors, (6), 5 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 14:37:37,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2025-02-06 14:37:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:39,922 INFO L93 Difference]: Finished difference Result 471 states and 561 transitions. [2025-02-06 14:37:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-06 14:37:39,923 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 8.333333333333334) internal successors, (150), 18 states have internal predecessors, (150), 5 states have call successors, (6), 5 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 81 [2025-02-06 14:37:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:39,924 INFO L225 Difference]: With dead ends: 471 [2025-02-06 14:37:39,924 INFO L226 Difference]: Without dead ends: 470 [2025-02-06 14:37:39,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 137 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2025-02-06 14:37:39,925 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 870 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:39,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1663 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 990 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2025-02-06 14:37:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2025-02-06 14:37:39,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 445. [2025-02-06 14:37:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 335 states have (on average 1.5671641791044777) internal successors, (525), 427 states have internal predecessors, (525), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 11 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 14:37:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 553 transitions. [2025-02-06 14:37:39,937 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 553 transitions. Word has length 81 [2025-02-06 14:37:39,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:39,937 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 553 transitions. [2025-02-06 14:37:39,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 8.333333333333334) internal successors, (150), 18 states have internal predecessors, (150), 5 states have call successors, (6), 5 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 14:37:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 553 transitions. [2025-02-06 14:37:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-06 14:37:39,938 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:39,938 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, 1, 1, 1, 1, 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 14:37:39,945 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 14:37:40,139 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,SelfDestructingSolverStorable34 [2025-02-06 14:37:40,139 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting func_to_recursive_line_27_to_35_0Err47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:40,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:40,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2041801522, now seen corresponding path program 1 times [2025-02-06 14:37:40,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:40,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921255284] [2025-02-06 14:37:40,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:40,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:40,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 14:37:40,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 14:37:40,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:40,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:40,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24177493] [2025-02-06 14:37:40,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:40,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:40,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:40,159 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 14:37:40,161 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 14:37:40,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-06 14:37:40,270 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-06 14:37:40,271 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:40,271 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:40,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-02-06 14:37:40,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:40,276 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 14:37:40,373 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 14:37:40,505 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 14:37:40,505 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 14:37:41,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 14:37:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921255284] [2025-02-06 14:37:41,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 14:37:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24177493] [2025-02-06 14:37:41,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24177493] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 14:37:41,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 14:37:41,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-02-06 14:37:41,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980278568] [2025-02-06 14:37:41,006 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 14:37:41,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 14:37:41,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 14:37:41,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 14:37:41,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2025-02-06 14:37:41,007 INFO L87 Difference]: Start difference. First operand 445 states and 553 transitions. Second operand has 14 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 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 14:37:41,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 14:37:41,463 INFO L93 Difference]: Finished difference Result 509 states and 561 transitions. [2025-02-06 14:37:41,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 14:37:41,463 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 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 82 [2025-02-06 14:37:41,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 14:37:41,464 INFO L225 Difference]: With dead ends: 509 [2025-02-06 14:37:41,464 INFO L226 Difference]: Without dead ends: 508 [2025-02-06 14:37:41,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2025-02-06 14:37:41,465 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 467 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 14:37:41,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 1111 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 14:37:41,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-02-06 14:37:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 445. [2025-02-06 14:37:41,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 335 states have (on average 1.5641791044776119) internal successors, (524), 427 states have internal predecessors, (524), 10 states have call successors, (10), 6 states have call predecessors, (10), 10 states have return successors, (18), 11 states have call predecessors, (18), 10 states have call successors, (18) [2025-02-06 14:37:41,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 552 transitions. [2025-02-06 14:37:41,475 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 552 transitions. Word has length 82 [2025-02-06 14:37:41,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 14:37:41,475 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 552 transitions. [2025-02-06 14:37:41,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.5) internal successors, (78), 12 states have internal predecessors, (78), 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 14:37:41,475 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 552 transitions. [2025-02-06 14:37:41,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-06 14:37:41,476 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 14:37:41,476 INFO L218 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 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 14:37:41,486 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 14:37:41,680 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,SelfDestructingSolverStorable35 [2025-02-06 14:37:41,680 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting func_to_recursive_line_27_to_35_0Err46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-02-06 14:37:41,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 14:37:41,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1128662076, now seen corresponding path program 1 times [2025-02-06 14:37:41,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 14:37:41,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397643895] [2025-02-06 14:37:41,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:41,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 14:37:41,688 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 14:37:41,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 14:37:41,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:41,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 14:37:41,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141911284] [2025-02-06 14:37:41,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 14:37:41,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 14:37:41,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 14:37:41,699 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 14:37:41,703 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 14:37:41,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-06 14:37:41,822 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-06 14:37:41,822 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 14:37:41,822 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 14:37:41,824 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 42 conjuncts are in the unsatisfiable core [2025-02-06 14:37:41,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 14:37:41,828 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 14:37:41,995 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 14:37:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 14:37:42,116 INFO L312 TraceCheckSpWp]: Computing backward predicates...