./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 551b0097 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-?-551b009-m [2025-01-10 02:37:07,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-10 02:37:07,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-01-10 02:37:07,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-10 02:37:07,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-10 02:37:07,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-10 02:37:07,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-10 02:37:07,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-10 02:37:07,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-10 02:37:07,403 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-10 02:37:07,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-10 02:37:07,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-10 02:37:07,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Use SBE=true [2025-01-10 02:37:07,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-10 02:37:07,404 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-10 02:37:07,405 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:37:07,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:37:07,405 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-10 02:37:07,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-10 02:37:07,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-10 02:37:07,406 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 [2025-01-10 02:37:07,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-10 02:37:07,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-10 02:37:07,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-10 02:37:07,651 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-10 02:37:07,651 INFO L274 PluginConnector]: CDTParser initialized [2025-01-10 02:37:07,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2025-01-10 02:37:08,841 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae1508217/8fad9cd86c57446d92fbec50278acdd3/FLAGf888b6456 [2025-01-10 02:37:09,077 INFO L384 CDTParser]: Found 1 translation units. [2025-01-10 02:37:09,078 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2025-01-10 02:37:09,093 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae1508217/8fad9cd86c57446d92fbec50278acdd3/FLAGf888b6456 [2025-01-10 02:37:09,412 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ae1508217/8fad9cd86c57446d92fbec50278acdd3 [2025-01-10 02:37:09,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-10 02:37:09,415 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-10 02:37:09,415 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-10 02:37:09,415 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-10 02:37:09,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-10 02:37:09,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,421 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d03e125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09, skipping insertion in model container [2025-01-10 02:37:09,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-10 02:37:09,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:37:09,551 INFO L200 MainTranslator]: Completed pre-run [2025-01-10 02:37:09,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-10 02:37:09,596 INFO L204 MainTranslator]: Completed translation [2025-01-10 02:37:09,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09 WrapperNode [2025-01-10 02:37:09,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-10 02:37:09,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-10 02:37:09,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-10 02:37:09,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-10 02:37:09,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,626 INFO L138 Inliner]: procedures = 16, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 143 [2025-01-10 02:37:09,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-10 02:37:09,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-10 02:37:09,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-10 02:37:09,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-10 02:37:09,636 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,639 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,656 INFO L175 MemorySlicer]: Split 60 memory accesses to 5 slices as follows [2, 45, 5, 4, 4]. 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, 2, 1]. [2025-01-10 02:37:09,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,672 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-10 02:37:09,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-10 02:37:09,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-10 02:37:09,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-10 02:37:09,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (1/1) ... [2025-01-10 02:37:09,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-10 02:37:09,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:09,709 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) [2025-01-10 02:37:09,711 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 [2025-01-10 02:37:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-10 02:37:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-10 02:37:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-10 02:37:09,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-10 02:37:09,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-10 02:37:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-10 02:37:09,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-10 02:37:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-10 02:37:09,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-01-10 02:37:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2025-01-10 02:37:09,731 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2025-01-10 02:37:09,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-10 02:37:09,811 INFO L234 CfgBuilder]: Building ICFG [2025-01-10 02:37:09,812 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-10 02:37:10,430 INFO L? ?]: Removed 502 outVars from TransFormulas that were not future-live. [2025-01-10 02:37:10,430 INFO L283 CfgBuilder]: Performing block encoding [2025-01-10 02:37:10,440 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-10 02:37:10,440 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-10 02:37:10,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:37:10 BoogieIcfgContainer [2025-01-10 02:37:10,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-10 02:37:10,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-10 02:37:10,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-10 02:37:10,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-10 02:37:10,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 02:37:09" (1/3) ... [2025-01-10 02:37:10,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd0d893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:37:10, skipping insertion in model container [2025-01-10 02:37:10,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 02:37:09" (2/3) ... [2025-01-10 02:37:10,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd0d893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 02:37:10, skipping insertion in model container [2025-01-10 02:37:10,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 02:37:10" (3/3) ... [2025-01-10 02:37:10,447 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_ps6-ll.c [2025-01-10 02:37:10,458 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-10 02:37:10,463 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. [2025-01-10 02:37:10,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-10 02:37:10,525 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;@1e8726e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-10 02:37:10,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2025-01-10 02:37:10,528 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) [2025-01-10 02:37:10,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 02:37:10,533 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:10,533 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:10,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === 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)] === [2025-01-10 02:37:10,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:10,538 INFO L85 PathProgramCache]: Analyzing trace with hash 126580329, now seen corresponding path program 1 times [2025-01-10 02:37:10,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:10,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361577633] [2025-01-10 02:37:10,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:10,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:10,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 02:37:10,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 02:37:10,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:10,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:10,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:10,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:10,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361577633] [2025-01-10 02:37:10,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361577633] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:10,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:10,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-10 02:37:10,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544250569] [2025-01-10 02:37:10,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:10,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-10 02:37:10,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:10,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-10 02:37:10,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-10 02:37:10,714 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) [2025-01-10 02:37:10,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:10,742 INFO L93 Difference]: Finished difference Result 458 states and 474 transitions. [2025-01-10 02:37:10,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-10 02:37:10,744 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 [2025-01-10 02:37:10,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:10,748 INFO L225 Difference]: With dead ends: 458 [2025-01-10 02:37:10,748 INFO L226 Difference]: Without dead ends: 224 [2025-01-10 02:37:10,751 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 [2025-01-10 02:37:10,752 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 [2025-01-10 02:37:10,753 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] [2025-01-10 02:37:10,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2025-01-10 02:37:10,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2025-01-10 02:37:10,777 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) [2025-01-10 02:37:10,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 226 transitions. [2025-01-10 02:37:10,782 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 226 transitions. Word has length 8 [2025-01-10 02:37:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:10,782 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 226 transitions. [2025-01-10 02:37:10,782 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) [2025-01-10 02:37:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 226 transitions. [2025-01-10 02:37:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-01-10 02:37:10,782 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:10,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:10,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-10 02:37:10,783 INFO L396 AbstractCegarLoop]: === Iteration 2 === 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)] === [2025-01-10 02:37:10,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 183838631, now seen corresponding path program 1 times [2025-01-10 02:37:10,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:10,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727443979] [2025-01-10 02:37:10,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:10,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-01-10 02:37:10,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-01-10 02:37:10,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:10,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:10,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:10,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:10,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727443979] [2025-01-10 02:37:10,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727443979] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:10,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:10,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:10,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8154894] [2025-01-10 02:37:10,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:10,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:10,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:10,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:10,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:10,992 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) [2025-01-10 02:37:11,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:11,390 INFO L93 Difference]: Finished difference Result 414 states and 419 transitions. [2025-01-10 02:37:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:11,390 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 [2025-01-10 02:37:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:11,392 INFO L225 Difference]: With dead ends: 414 [2025-01-10 02:37:11,392 INFO L226 Difference]: Without dead ends: 402 [2025-01-10 02:37:11,393 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 [2025-01-10 02:37:11,393 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, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:11,393 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 848 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:37:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2025-01-10 02:37:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 273. [2025-01-10 02:37:11,404 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) [2025-01-10 02:37:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 307 transitions. [2025-01-10 02:37:11,406 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 307 transitions. Word has length 8 [2025-01-10 02:37:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:11,406 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 307 transitions. [2025-01-10 02:37:11,406 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) [2025-01-10 02:37:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 307 transitions. [2025-01-10 02:37:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-01-10 02:37:11,406 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:11,406 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] [2025-01-10 02:37:11,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-10 02:37:11,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === 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)] === [2025-01-10 02:37:11,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:11,407 INFO L85 PathProgramCache]: Analyzing trace with hash -131476173, now seen corresponding path program 1 times [2025-01-10 02:37:11,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625144558] [2025-01-10 02:37:11,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:11,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-01-10 02:37:11,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-01-10 02:37:11,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:11,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:11,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625144558] [2025-01-10 02:37:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625144558] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:11,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:11,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101333427] [2025-01-10 02:37:11,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:11,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:11,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:11,604 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:11,604 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:11,604 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) [2025-01-10 02:37:11,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:11,917 INFO L93 Difference]: Finished difference Result 402 states and 407 transitions. [2025-01-10 02:37:11,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:11,918 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 [2025-01-10 02:37:11,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:11,920 INFO L225 Difference]: With dead ends: 402 [2025-01-10 02:37:11,920 INFO L226 Difference]: Without dead ends: 392 [2025-01-10 02:37:11,920 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 [2025-01-10 02:37:11,921 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, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:11,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 846 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2025-01-10 02:37:11,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 273. [2025-01-10 02:37:11,936 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) [2025-01-10 02:37:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2025-01-10 02:37:11,937 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 20 [2025-01-10 02:37:11,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:11,938 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2025-01-10 02:37:11,938 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) [2025-01-10 02:37:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2025-01-10 02:37:11,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2025-01-10 02:37:11,938 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:11,938 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] [2025-01-10 02:37:11,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-10 02:37:11,939 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_35_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:11,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:11,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1197575043, now seen corresponding path program 1 times [2025-01-10 02:37:11,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:11,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081389023] [2025-01-10 02:37:11,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:11,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:11,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 02:37:11,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 02:37:11,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:11,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:11,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [481238464] [2025-01-10 02:37:11,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:11,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:11,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:11,966 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) [2025-01-10 02:37:11,968 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 [2025-01-10 02:37:12,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 30 statements into 1 equivalence classes. [2025-01-10 02:37:12,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 30 of 30 statements. [2025-01-10 02:37:12,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:12,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:12,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-10 02:37:12,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:12,057 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 [2025-01-10 02:37:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:12,183 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:12,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:12,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081389023] [2025-01-10 02:37:12,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:12,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [481238464] [2025-01-10 02:37:12,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [481238464] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:12,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:12,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:37:12,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337528101] [2025-01-10 02:37:12,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:12,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:37:12,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:12,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:37:12,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:37:12,185 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2025-01-10 02:37:12,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:12,529 INFO L93 Difference]: Finished difference Result 392 states and 397 transitions. [2025-01-10 02:37:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:37:12,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 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 [2025-01-10 02:37:12,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:12,531 INFO L225 Difference]: With dead ends: 392 [2025-01-10 02:37:12,531 INFO L226 Difference]: Without dead ends: 390 [2025-01-10 02:37:12,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:12,532 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 246 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:12,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1027 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2025-01-10 02:37:12,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 273. [2025-01-10 02:37:12,539 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) [2025-01-10 02:37:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 295 transitions. [2025-01-10 02:37:12,540 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 295 transitions. Word has length 30 [2025-01-10 02:37:12,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:12,540 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 295 transitions. [2025-01-10 02:37:12,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 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) [2025-01-10 02:37:12,541 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 295 transitions. [2025-01-10 02:37:12,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-01-10 02:37:12,541 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:12,541 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] [2025-01-10 02:37:12,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-10 02:37:12,746 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 [2025-01-10 02:37:12,746 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_35_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:12,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:12,746 INFO L85 PathProgramCache]: Analyzing trace with hash 181625535, now seen corresponding path program 1 times [2025-01-10 02:37:12,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:12,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306935628] [2025-01-10 02:37:12,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:12,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:12,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-10 02:37:12,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-10 02:37:12,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:12,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:12,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:12,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306935628] [2025-01-10 02:37:12,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306935628] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:12,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:12,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:12,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987555967] [2025-01-10 02:37:12,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:12,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:12,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:12,909 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:12,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:12,909 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) [2025-01-10 02:37:13,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:13,137 INFO L93 Difference]: Finished difference Result 390 states and 395 transitions. [2025-01-10 02:37:13,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:13,137 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 [2025-01-10 02:37:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:13,139 INFO L225 Difference]: With dead ends: 390 [2025-01-10 02:37:13,139 INFO L226 Difference]: Without dead ends: 382 [2025-01-10 02:37:13,139 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 [2025-01-10 02:37:13,140 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 [2025-01-10 02:37:13,140 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] [2025-01-10 02:37:13,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-01-10 02:37:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 273. [2025-01-10 02:37:13,146 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) [2025-01-10 02:37:13,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 287 transitions. [2025-01-10 02:37:13,147 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 287 transitions. Word has length 32 [2025-01-10 02:37:13,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:13,147 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 287 transitions. [2025-01-10 02:37:13,147 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) [2025-01-10 02:37:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 287 transitions. [2025-01-10 02:37:13,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2025-01-10 02:37:13,148 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:13,148 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] [2025-01-10 02:37:13,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-10 02:37:13,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === 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)] === [2025-01-10 02:37:13,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:13,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1692283961, now seen corresponding path program 1 times [2025-01-10 02:37:13,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:13,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138146014] [2025-01-10 02:37:13,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:13,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:13,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 02:37:13,165 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 02:37:13,165 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:13,165 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:13,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [535704319] [2025-01-10 02:37:13,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:13,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:13,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:13,168 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) [2025-01-10 02:37:13,171 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 [2025-01-10 02:37:13,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-01-10 02:37:13,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-01-10 02:37:13,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:13,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:13,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-10 02:37:13,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:13,247 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 [2025-01-10 02:37:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:13,428 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:13,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:13,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138146014] [2025-01-10 02:37:13,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:13,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535704319] [2025-01-10 02:37:13,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535704319] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:13,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:13,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 02:37:13,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655030539] [2025-01-10 02:37:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:13,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 02:37:13,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:13,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 02:37:13,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:37:13,429 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) [2025-01-10 02:37:13,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:13,848 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2025-01-10 02:37:13,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 02:37:13,849 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 [2025-01-10 02:37:13,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:13,850 INFO L225 Difference]: With dead ends: 382 [2025-01-10 02:37:13,850 INFO L226 Difference]: Without dead ends: 380 [2025-01-10 02:37:13,850 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 [2025-01-10 02:37:13,851 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 232 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:13,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 852 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:37:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-01-10 02:37:13,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2025-01-10 02:37:13,858 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) [2025-01-10 02:37:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 285 transitions. [2025-01-10 02:37:13,859 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 285 transitions. Word has length 40 [2025-01-10 02:37:13,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:13,859 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 285 transitions. [2025-01-10 02:37:13,860 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) [2025-01-10 02:37:13,860 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 285 transitions. [2025-01-10 02:37:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2025-01-10 02:37:13,861 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:13,861 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] [2025-01-10 02:37:13,870 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 [2025-01-10 02:37:14,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:14,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_35_0Err34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:14,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1507725833, now seen corresponding path program 1 times [2025-01-10 02:37:14,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:14,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552681301] [2025-01-10 02:37:14,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:14,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:14,073 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-10 02:37:14,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 02:37:14,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:14,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:14,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454548640] [2025-01-10 02:37:14,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:14,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:14,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:14,090 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) [2025-01-10 02:37:14,091 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 [2025-01-10 02:37:14,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-01-10 02:37:14,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-01-10 02:37:14,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:14,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:14,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-10 02:37:14,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:14,171 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 [2025-01-10 02:37:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:14,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:14,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:14,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552681301] [2025-01-10 02:37:14,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:14,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454548640] [2025-01-10 02:37:14,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454548640] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:14,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:14,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:14,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246619478] [2025-01-10 02:37:14,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:14,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:14,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:14,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:14,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:14,248 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) [2025-01-10 02:37:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:14,460 INFO L93 Difference]: Finished difference Result 380 states and 385 transitions. [2025-01-10 02:37:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:14,461 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 [2025-01-10 02:37:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:14,462 INFO L225 Difference]: With dead ends: 380 [2025-01-10 02:37:14,462 INFO L226 Difference]: Without dead ends: 378 [2025-01-10 02:37:14,462 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 [2025-01-10 02:37:14,463 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 [2025-01-10 02:37:14,463 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] [2025-01-10 02:37:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-01-10 02:37:14,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2025-01-10 02:37:14,473 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) [2025-01-10 02:37:14,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 283 transitions. [2025-01-10 02:37:14,474 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 283 transitions. Word has length 42 [2025-01-10 02:37:14,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:14,474 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 283 transitions. [2025-01-10 02:37:14,475 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) [2025-01-10 02:37:14,475 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 283 transitions. [2025-01-10 02:37:14,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-10 02:37:14,476 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:14,476 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] [2025-01-10 02:37:14,482 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-10 02:37:14,677 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 [2025-01-10 02:37:14,677 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_35_0Err36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:14,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:14,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1520554059, now seen corresponding path program 1 times [2025-01-10 02:37:14,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:14,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15894605] [2025-01-10 02:37:14,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:14,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:14,687 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 02:37:14,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 02:37:14,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:14,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:14,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431038503] [2025-01-10 02:37:14,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:14,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:14,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:14,706 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) [2025-01-10 02:37:14,708 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 [2025-01-10 02:37:14,753 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-10 02:37:14,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-10 02:37:14,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:14,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:14,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 02:37:14,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:14,779 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 [2025-01-10 02:37:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:15,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:15,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15894605] [2025-01-10 02:37:15,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431038503] [2025-01-10 02:37:15,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431038503] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:15,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:15,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 02:37:15,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152818743] [2025-01-10 02:37:15,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 02:37:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:15,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 02:37:15,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:37:15,043 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) [2025-01-10 02:37:15,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:15,622 INFO L93 Difference]: Finished difference Result 378 states and 383 transitions. [2025-01-10 02:37:15,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 02:37:15,624 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 [2025-01-10 02:37:15,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:15,626 INFO L225 Difference]: With dead ends: 378 [2025-01-10 02:37:15,626 INFO L226 Difference]: Without dead ends: 377 [2025-01-10 02:37:15,626 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 [2025-01-10 02:37:15,627 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 204 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:15,627 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 845 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 02:37:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2025-01-10 02:37:15,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2025-01-10 02:37:15,632 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) [2025-01-10 02:37:15,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 282 transitions. [2025-01-10 02:37:15,633 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 282 transitions. Word has length 44 [2025-01-10 02:37:15,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:15,633 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 282 transitions. [2025-01-10 02:37:15,633 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) [2025-01-10 02:37:15,634 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 282 transitions. [2025-01-10 02:37:15,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-10 02:37:15,634 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:15,634 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] [2025-01-10 02:37:15,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:15,838 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 [2025-01-10 02:37:15,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_35_0Err37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:15,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:15,839 INFO L85 PathProgramCache]: Analyzing trace with hash -107464195, now seen corresponding path program 1 times [2025-01-10 02:37:15,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:15,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795373691] [2025-01-10 02:37:15,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:15,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:15,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 02:37:15,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 02:37:15,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:15,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:15,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1532097409] [2025-01-10 02:37:15,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:15,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:15,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:15,872 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) [2025-01-10 02:37:15,874 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 [2025-01-10 02:37:15,920 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-10 02:37:15,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-10 02:37:15,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:15,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:15,941 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-10 02:37:15,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:15,946 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 [2025-01-10 02:37:16,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:16,055 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:16,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795373691] [2025-01-10 02:37:16,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:16,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532097409] [2025-01-10 02:37:16,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532097409] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:16,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:16,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:16,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963607716] [2025-01-10 02:37:16,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:16,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:16,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:16,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:16,056 INFO L87 Difference]: Start difference. First operand 273 states and 282 transitions. Second operand has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 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) [2025-01-10 02:37:16,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:16,654 INFO L93 Difference]: Finished difference Result 377 states and 382 transitions. [2025-01-10 02:37:16,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:16,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 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 [2025-01-10 02:37:16,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:16,656 INFO L225 Difference]: With dead ends: 377 [2025-01-10 02:37:16,656 INFO L226 Difference]: Without dead ends: 376 [2025-01-10 02:37:16,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:37:16,657 INFO L435 NwaCegarLoop]: 180 mSDtfsCounter, 179 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:16,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 832 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-10 02:37:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2025-01-10 02:37:16,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 273. [2025-01-10 02:37:16,663 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) [2025-01-10 02:37:16,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 281 transitions. [2025-01-10 02:37:16,664 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 281 transitions. Word has length 45 [2025-01-10 02:37:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:16,664 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 281 transitions. [2025-01-10 02:37:16,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 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) [2025-01-10 02:37:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 281 transitions. [2025-01-10 02:37:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-01-10 02:37:16,665 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:16,665 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] [2025-01-10 02:37:16,671 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-10 02:37:16,865 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 [2025-01-10 02:37:16,866 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_35_0Err38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:16,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:16,866 INFO L85 PathProgramCache]: Analyzing trace with hash 963577485, now seen corresponding path program 1 times [2025-01-10 02:37:16,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:16,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772802147] [2025-01-10 02:37:16,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:16,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:16,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-01-10 02:37:16,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-01-10 02:37:16,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:16,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:17,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:17,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772802147] [2025-01-10 02:37:17,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772802147] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:17,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:17,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:17,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649548450] [2025-01-10 02:37:17,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:17,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:17,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:17,038 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) [2025-01-10 02:37:17,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:17,105 INFO L93 Difference]: Finished difference Result 382 states and 386 transitions. [2025-01-10 02:37:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:17,106 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 [2025-01-10 02:37:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:17,107 INFO L225 Difference]: With dead ends: 382 [2025-01-10 02:37:17,107 INFO L226 Difference]: Without dead ends: 380 [2025-01-10 02:37:17,107 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 [2025-01-10 02:37:17,108 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 195 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:17,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1067 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-10 02:37:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2025-01-10 02:37:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2025-01-10 02:37:17,114 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) [2025-01-10 02:37:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 279 transitions. [2025-01-10 02:37:17,115 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 279 transitions. Word has length 46 [2025-01-10 02:37:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:17,115 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 279 transitions. [2025-01-10 02:37:17,115 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) [2025-01-10 02:37:17,116 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 279 transitions. [2025-01-10 02:37:17,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-01-10 02:37:17,116 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:17,116 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] [2025-01-10 02:37:17,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-10 02:37:17,116 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_35_0Err40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:17,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:17,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1714965297, now seen corresponding path program 1 times [2025-01-10 02:37:17,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:17,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004881697] [2025-01-10 02:37:17,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:17,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:17,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-01-10 02:37:17,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-01-10 02:37:17,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:17,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:17,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:17,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004881697] [2025-01-10 02:37:17,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004881697] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:17,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:17,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:37:17,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275383273] [2025-01-10 02:37:17,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:17,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:37:17,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:17,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:37:17,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:37:17,299 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) [2025-01-10 02:37:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:17,773 INFO L93 Difference]: Finished difference Result 380 states and 384 transitions. [2025-01-10 02:37:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:37:17,774 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 [2025-01-10 02:37:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:17,775 INFO L225 Difference]: With dead ends: 380 [2025-01-10 02:37:17,775 INFO L226 Difference]: Without dead ends: 379 [2025-01-10 02:37:17,775 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 [2025-01-10 02:37:17,776 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 191 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:17,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1129 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:37:17,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-01-10 02:37:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 273. [2025-01-10 02:37:17,781 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) [2025-01-10 02:37:17,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 278 transitions. [2025-01-10 02:37:17,782 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 278 transitions. Word has length 48 [2025-01-10 02:37:17,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:17,782 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 278 transitions. [2025-01-10 02:37:17,782 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) [2025-01-10 02:37:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 278 transitions. [2025-01-10 02:37:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2025-01-10 02:37:17,783 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:17,783 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:17,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-10 02:37:17,783 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_35_0Err41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:17,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:17,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1624316415, now seen corresponding path program 1 times [2025-01-10 02:37:17,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:17,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080531535] [2025-01-10 02:37:17,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:17,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:17,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-01-10 02:37:17,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-01-10 02:37:17,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:17,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:17,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:17,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080531535] [2025-01-10 02:37:17,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080531535] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:17,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:17,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:17,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588173040] [2025-01-10 02:37:17,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:17,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:17,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:17,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:17,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:17,912 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) [2025-01-10 02:37:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:18,353 INFO L93 Difference]: Finished difference Result 379 states and 383 transitions. [2025-01-10 02:37:18,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:18,354 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 [2025-01-10 02:37:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:18,355 INFO L225 Difference]: With dead ends: 379 [2025-01-10 02:37:18,355 INFO L226 Difference]: Without dead ends: 378 [2025-01-10 02:37:18,355 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 [2025-01-10 02:37:18,355 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 [2025-01-10 02:37:18,355 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] [2025-01-10 02:37:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2025-01-10 02:37:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2025-01-10 02:37:18,360 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) [2025-01-10 02:37:18,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2025-01-10 02:37:18,361 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 49 [2025-01-10 02:37:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:18,361 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2025-01-10 02:37:18,361 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) [2025-01-10 02:37:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2025-01-10 02:37:18,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-10 02:37:18,362 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:18,362 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] [2025-01-10 02:37:18,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-10 02:37:18,362 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_35_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:18,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -630776729, now seen corresponding path program 1 times [2025-01-10 02:37:18,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:18,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772961090] [2025-01-10 02:37:18,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:18,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:18,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-10 02:37:18,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-10 02:37:18,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:18,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:18,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:18,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:18,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772961090] [2025-01-10 02:37:18,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772961090] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:18,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:18,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:37:18,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667819003] [2025-01-10 02:37:18,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:18,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:37:18,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:18,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:37:18,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:37:18,558 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) [2025-01-10 02:37:18,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:18,680 INFO L93 Difference]: Finished difference Result 372 states and 376 transitions. [2025-01-10 02:37:18,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:37:18,680 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 [2025-01-10 02:37:18,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:18,682 INFO L225 Difference]: With dead ends: 372 [2025-01-10 02:37:18,682 INFO L226 Difference]: Without dead ends: 371 [2025-01-10 02:37:18,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:18,682 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 149 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:18,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1290 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:37:18,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2025-01-10 02:37:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2025-01-10 02:37:18,690 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) [2025-01-10 02:37:18,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 278 transitions. [2025-01-10 02:37:18,691 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 278 transitions. Word has length 57 [2025-01-10 02:37:18,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:18,692 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 278 transitions. [2025-01-10 02:37:18,692 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) [2025-01-10 02:37:18,692 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 278 transitions. [2025-01-10 02:37:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2025-01-10 02:37:18,692 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:18,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:18,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-10 02:37:18,693 INFO L396 AbstractCegarLoop]: === Iteration 14 === 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)] === [2025-01-10 02:37:18,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1920758131, now seen corresponding path program 1 times [2025-01-10 02:37:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:18,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119554009] [2025-01-10 02:37:18,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:18,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:18,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 58 statements into 1 equivalence classes. [2025-01-10 02:37:18,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 58 of 58 statements. [2025-01-10 02:37:18,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:18,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:18,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:18,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119554009] [2025-01-10 02:37:18,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119554009] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:18,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:18,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:37:18,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180093896] [2025-01-10 02:37:18,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:18,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:37:18,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:18,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:37:18,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:37:18,921 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) [2025-01-10 02:37:19,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:19,015 INFO L93 Difference]: Finished difference Result 274 states and 278 transitions. [2025-01-10 02:37:19,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:37:19,015 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 [2025-01-10 02:37:19,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:19,017 INFO L225 Difference]: With dead ends: 274 [2025-01-10 02:37:19,018 INFO L226 Difference]: Without dead ends: 273 [2025-01-10 02:37:19,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:19,019 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, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:19,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 959 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:37:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2025-01-10 02:37:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2025-01-10 02:37:19,024 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) [2025-01-10 02:37:19,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2025-01-10 02:37:19,025 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 58 [2025-01-10 02:37:19,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:19,025 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2025-01-10 02:37:19,025 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) [2025-01-10 02:37:19,025 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2025-01-10 02:37:19,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-10 02:37:19,026 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:19,026 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] [2025-01-10 02:37:19,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-10 02:37:19,026 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_27_to_35_0Err44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:19,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:19,027 INFO L85 PathProgramCache]: Analyzing trace with hash -586039831, now seen corresponding path program 1 times [2025-01-10 02:37:19,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:19,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297638394] [2025-01-10 02:37:19,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:19,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-10 02:37:19,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-10 02:37:19,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:19,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:19,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:19,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:19,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297638394] [2025-01-10 02:37:19,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297638394] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:19,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:19,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:19,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423296107] [2025-01-10 02:37:19,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:19,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:19,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:19,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:19,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:19,170 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) [2025-01-10 02:37:19,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:19,299 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2025-01-10 02:37:19,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:19,299 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 [2025-01-10 02:37:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:19,300 INFO L225 Difference]: With dead ends: 369 [2025-01-10 02:37:19,300 INFO L226 Difference]: Without dead ends: 367 [2025-01-10 02:37:19,300 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 [2025-01-10 02:37:19,301 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 [2025-01-10 02:37:19,301 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] [2025-01-10 02:37:19,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-01-10 02:37:19,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 276. [2025-01-10 02:37:19,306 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) [2025-01-10 02:37:19,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 280 transitions. [2025-01-10 02:37:19,306 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 280 transitions. Word has length 59 [2025-01-10 02:37:19,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:19,307 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 280 transitions. [2025-01-10 02:37:19,307 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) [2025-01-10 02:37:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 280 transitions. [2025-01-10 02:37:19,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2025-01-10 02:37:19,307 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:19,307 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] [2025-01-10 02:37:19,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-10 02:37:19,307 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:19,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:19,308 INFO L85 PathProgramCache]: Analyzing trace with hash -987342284, now seen corresponding path program 1 times [2025-01-10 02:37:19,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:19,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404222852] [2025-01-10 02:37:19,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:19,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:19,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-01-10 02:37:19,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-01-10 02:37:19,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:19,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:19,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:19,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:19,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404222852] [2025-01-10 02:37:19,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404222852] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:19,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:19,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:37:19,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133561248] [2025-01-10 02:37:19,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:19,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:37:19,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:19,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:37:19,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:37:19,392 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) [2025-01-10 02:37:19,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:19,659 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2025-01-10 02:37:19,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:37:19,660 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 [2025-01-10 02:37:19,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:19,661 INFO L225 Difference]: With dead ends: 369 [2025-01-10 02:37:19,661 INFO L226 Difference]: Without dead ends: 357 [2025-01-10 02:37:19,661 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 [2025-01-10 02:37:19,662 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 [2025-01-10 02:37:19,662 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] [2025-01-10 02:37:19,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2025-01-10 02:37:19,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 291. [2025-01-10 02:37:19,668 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) [2025-01-10 02:37:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 295 transitions. [2025-01-10 02:37:19,669 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 295 transitions. Word has length 60 [2025-01-10 02:37:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:19,669 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 295 transitions. [2025-01-10 02:37:19,669 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) [2025-01-10 02:37:19,669 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 295 transitions. [2025-01-10 02:37:19,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-10 02:37:19,670 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:19,670 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] [2025-01-10 02:37:19,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-10 02:37:19,670 INFO L396 AbstractCegarLoop]: === Iteration 17 === 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)] === [2025-01-10 02:37:19,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:19,670 INFO L85 PathProgramCache]: Analyzing trace with hash -543553685, now seen corresponding path program 1 times [2025-01-10 02:37:19,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:19,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024927895] [2025-01-10 02:37:19,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:19,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:19,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 02:37:19,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 02:37:19,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:19,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:19,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [75690815] [2025-01-10 02:37:19,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:19,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:19,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:19,692 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) [2025-01-10 02:37:19,693 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 [2025-01-10 02:37:19,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-10 02:37:19,766 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-10 02:37:19,766 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:19,766 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:19,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-10 02:37:19,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:19,777 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 [2025-01-10 02:37:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:19,980 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:19,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:19,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024927895] [2025-01-10 02:37:19,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:19,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75690815] [2025-01-10 02:37:19,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75690815] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:19,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:19,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 02:37:19,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35039454] [2025-01-10 02:37:19,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:19,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 02:37:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:19,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 02:37:19,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:37:19,982 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) [2025-01-10 02:37:20,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:20,228 INFO L93 Difference]: Finished difference Result 376 states and 388 transitions. [2025-01-10 02:37:20,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 02:37:20,229 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 [2025-01-10 02:37:20,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:20,230 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:20,230 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:20,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:20,231 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 221 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:20,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 922 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:37:20,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:20,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 327. [2025-01-10 02:37:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 215 states have (on average 1.613953488372093) 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) [2025-01-10 02:37:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 361 transitions. [2025-01-10 02:37:20,239 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 361 transitions. Word has length 61 [2025-01-10 02:37:20,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:20,240 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 361 transitions. [2025-01-10 02:37:20,240 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) [2025-01-10 02:37:20,240 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 361 transitions. [2025-01-10 02:37:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2025-01-10 02:37:20,240 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:20,240 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] [2025-01-10 02:37:20,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:20,445 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,SelfDestructingSolverStorable16 [2025-01-10 02:37:20,445 INFO L396 AbstractCegarLoop]: === Iteration 18 === 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)] === [2025-01-10 02:37:20,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:20,447 INFO L85 PathProgramCache]: Analyzing trace with hash 329705207, now seen corresponding path program 1 times [2025-01-10 02:37:20,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:20,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744282518] [2025-01-10 02:37:20,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:20,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:20,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-10 02:37:20,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-10 02:37:20,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:20,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:20,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [388819290] [2025-01-10 02:37:20,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:20,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:20,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:20,470 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) [2025-01-10 02:37:20,471 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 [2025-01-10 02:37:20,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-01-10 02:37:20,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-01-10 02:37:20,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:20,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:20,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 02:37:20,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:20,554 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 [2025-01-10 02:37:20,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:20,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:20,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:20,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744282518] [2025-01-10 02:37:20,664 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:20,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388819290] [2025-01-10 02:37:20,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388819290] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:20,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:20,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-10 02:37:20,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128482164] [2025-01-10 02:37:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:20,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-10 02:37:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:20,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-10 02:37:20,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-10 02:37:20,665 INFO L87 Difference]: Start difference. First operand 327 states and 361 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) [2025-01-10 02:37:20,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:20,943 INFO L93 Difference]: Finished difference Result 376 states and 387 transitions. [2025-01-10 02:37:20,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-10 02:37:20,943 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 [2025-01-10 02:37:20,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:20,944 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:20,945 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:20,945 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 [2025-01-10 02:37:20,945 INFO L435 NwaCegarLoop]: 166 mSDtfsCounter, 142 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 1148 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:20,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 1148 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:20,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 328. [2025-01-10 02:37:20,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 216 states have (on average 1.6111111111111112) 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) [2025-01-10 02:37:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 362 transitions. [2025-01-10 02:37:20,951 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 362 transitions. Word has length 62 [2025-01-10 02:37:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:20,952 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 362 transitions. [2025-01-10 02:37:20,952 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) [2025-01-10 02:37:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 362 transitions. [2025-01-10 02:37:20,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-10 02:37:20,952 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:20,952 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] [2025-01-10 02:37:20,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-10 02:37:21,153 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 [2025-01-10 02:37:21,153 INFO L396 AbstractCegarLoop]: === Iteration 19 === 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)] === [2025-01-10 02:37:21,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:21,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1630927085, now seen corresponding path program 1 times [2025-01-10 02:37:21,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:21,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538867680] [2025-01-10 02:37:21,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:21,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:21,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-10 02:37:21,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-10 02:37:21,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:21,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:21,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875176492] [2025-01-10 02:37:21,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:21,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:21,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:21,177 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) [2025-01-10 02:37:21,179 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 [2025-01-10 02:37:21,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-10 02:37:21,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-10 02:37:21,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:21,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:21,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-10 02:37:21,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:21,264 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 [2025-01-10 02:37:21,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2025-01-10 02:37:21,381 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 [2025-01-10 02:37:21,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:21,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:21,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:21,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538867680] [2025-01-10 02:37:21,394 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:21,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875176492] [2025-01-10 02:37:21,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875176492] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:21,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:21,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 02:37:21,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757654733] [2025-01-10 02:37:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:21,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 02:37:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:21,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 02:37:21,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 02:37:21,396 INFO L87 Difference]: Start difference. First operand 328 states and 362 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) [2025-01-10 02:37:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:21,716 INFO L93 Difference]: Finished difference Result 376 states and 386 transitions. [2025-01-10 02:37:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 02:37:21,717 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 [2025-01-10 02:37:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:21,718 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:21,718 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:21,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2025-01-10 02:37:21,718 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 227 mSDsluCounter, 923 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:21,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 1090 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:21,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:21,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 329. [2025-01-10 02:37:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 217 states have (on average 1.608294930875576) 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) [2025-01-10 02:37:21,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 363 transitions. [2025-01-10 02:37:21,725 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 363 transitions. Word has length 63 [2025-01-10 02:37:21,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:21,725 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 363 transitions. [2025-01-10 02:37:21,726 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) [2025-01-10 02:37:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 363 transitions. [2025-01-10 02:37:21,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-10 02:37:21,726 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:21,726 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] [2025-01-10 02:37:21,732 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 [2025-01-10 02:37:21,926 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 [2025-01-10 02:37:21,927 INFO L396 AbstractCegarLoop]: === Iteration 20 === 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)] === [2025-01-10 02:37:21,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:21,928 INFO L85 PathProgramCache]: Analyzing trace with hash -980867655, now seen corresponding path program 1 times [2025-01-10 02:37:21,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:21,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010370816] [2025-01-10 02:37:21,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:21,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:21,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-10 02:37:21,942 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-10 02:37:21,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:21,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:21,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1398110204] [2025-01-10 02:37:21,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:21,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:21,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:21,945 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) [2025-01-10 02:37:21,946 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 [2025-01-10 02:37:22,033 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-10 02:37:22,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-10 02:37:22,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:22,058 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:22,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-10 02:37:22,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:22,063 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 [2025-01-10 02:37:22,155 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 [2025-01-10 02:37:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:22,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:22,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:22,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010370816] [2025-01-10 02:37:22,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398110204] [2025-01-10 02:37:22,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398110204] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:22,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:22,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-10 02:37:22,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992161236] [2025-01-10 02:37:22,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:22,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 02:37:22,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:22,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 02:37:22,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-10 02:37:22,186 INFO L87 Difference]: Start difference. First operand 329 states and 363 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) [2025-01-10 02:37:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:22,432 INFO L93 Difference]: Finished difference Result 376 states and 385 transitions. [2025-01-10 02:37:22,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-10 02:37:22,433 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 [2025-01-10 02:37:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:22,434 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:22,434 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:22,435 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 [2025-01-10 02:37:22,435 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 228 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:22,435 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 995 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:37:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:22,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 330. [2025-01-10 02:37:22,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 218 states have (on average 1.6055045871559632) 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) [2025-01-10 02:37:22,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 364 transitions. [2025-01-10 02:37:22,445 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 364 transitions. Word has length 64 [2025-01-10 02:37:22,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:22,445 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 364 transitions. [2025-01-10 02:37:22,445 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) [2025-01-10 02:37:22,445 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 364 transitions. [2025-01-10 02:37:22,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-10 02:37:22,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:22,446 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] [2025-01-10 02:37:22,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-10 02:37:22,646 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 [2025-01-10 02:37:22,647 INFO L396 AbstractCegarLoop]: === Iteration 21 === 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)] === [2025-01-10 02:37:22,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:22,647 INFO L85 PathProgramCache]: Analyzing trace with hash -342125969, now seen corresponding path program 1 times [2025-01-10 02:37:22,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:22,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155839733] [2025-01-10 02:37:22,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:22,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:22,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-10 02:37:22,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 02:37:22,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:22,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:22,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [899120688] [2025-01-10 02:37:22,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:22,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:22,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:22,673 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) [2025-01-10 02:37:22,681 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 [2025-01-10 02:37:22,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-10 02:37:22,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-10 02:37:22,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:22,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:22,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 02:37:22,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:22,775 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 [2025-01-10 02:37:22,913 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 23 treesize of output 3 [2025-01-10 02:37:22,958 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 [2025-01-10 02:37:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:22,973 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155839733] [2025-01-10 02:37:22,973 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:22,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899120688] [2025-01-10 02:37:22,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899120688] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:22,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:22,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-10 02:37:22,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068933392] [2025-01-10 02:37:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:22,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 02:37:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:22,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 02:37:22,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:22,974 INFO L87 Difference]: Start difference. First operand 330 states and 364 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) [2025-01-10 02:37:23,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:23,342 INFO L93 Difference]: Finished difference Result 376 states and 384 transitions. [2025-01-10 02:37:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 02:37:23,346 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 [2025-01-10 02:37:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:23,347 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:23,347 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:23,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2025-01-10 02:37:23,347 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 151 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 1326 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:23,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 1326 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 472 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:23,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:23,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 331. [2025-01-10 02:37:23,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 219 states have (on average 1.6027397260273972) 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) [2025-01-10 02:37:23,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2025-01-10 02:37:23,355 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 65 [2025-01-10 02:37:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:23,356 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2025-01-10 02:37:23,356 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) [2025-01-10 02:37:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2025-01-10 02:37:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-10 02:37:23,356 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:23,356 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] [2025-01-10 02:37:23,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-10 02:37:23,569 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 [2025-01-10 02:37:23,569 INFO L396 AbstractCegarLoop]: === Iteration 22 === 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)] === [2025-01-10 02:37:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2015970181, now seen corresponding path program 1 times [2025-01-10 02:37:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079145721] [2025-01-10 02:37:23,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:23,585 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 02:37:23,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 02:37:23,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:23,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:23,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [905460758] [2025-01-10 02:37:23,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:23,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:23,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:23,599 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) [2025-01-10 02:37:23,601 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 [2025-01-10 02:37:23,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-10 02:37:23,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-10 02:37:23,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:23,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:23,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-01-10 02:37:23,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:23,694 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 [2025-01-10 02:37:23,790 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 [2025-01-10 02:37:23,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:23,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:23,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079145721] [2025-01-10 02:37:23,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905460758] [2025-01-10 02:37:23,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905460758] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:23,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:23,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-10 02:37:23,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858892732] [2025-01-10 02:37:23,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:23,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-10 02:37:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:23,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-10 02:37:23,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:23,866 INFO L87 Difference]: Start difference. First operand 331 states and 365 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) [2025-01-10 02:37:24,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:24,111 INFO L93 Difference]: Finished difference Result 376 states and 383 transitions. [2025-01-10 02:37:24,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-10 02:37:24,112 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 [2025-01-10 02:37:24,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:24,113 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:24,113 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:24,113 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 [2025-01-10 02:37:24,114 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 150 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:24,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1098 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:37:24,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 332. [2025-01-10 02:37:24,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 220 states have (on average 1.6) internal successors, (352), 321 states have internal predecessors, (352), 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) [2025-01-10 02:37:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 366 transitions. [2025-01-10 02:37:24,123 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 366 transitions. Word has length 66 [2025-01-10 02:37:24,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:24,124 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 366 transitions. [2025-01-10 02:37:24,124 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) [2025-01-10 02:37:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 366 transitions. [2025-01-10 02:37:24,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-01-10 02:37:24,124 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:24,124 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] [2025-01-10 02:37:24,130 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 [2025-01-10 02:37:24,325 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 [2025-01-10 02:37:24,325 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_27_to_35_0Err52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:24,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:24,326 INFO L85 PathProgramCache]: Analyzing trace with hash 1929434097, now seen corresponding path program 1 times [2025-01-10 02:37:24,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:24,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96857023] [2025-01-10 02:37:24,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:24,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:24,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-10 02:37:24,346 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 02:37:24,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:24,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:24,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1709834837] [2025-01-10 02:37:24,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:24,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:24,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:24,354 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) [2025-01-10 02:37:24,358 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 [2025-01-10 02:37:24,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-10 02:37:24,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-10 02:37:24,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:24,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:24,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 02:37:24,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:24,454 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 [2025-01-10 02:37:24,557 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 23 treesize of output 3 [2025-01-10 02:37:24,631 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 [2025-01-10 02:37:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:24,650 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:24,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:24,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96857023] [2025-01-10 02:37:24,651 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:24,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709834837] [2025-01-10 02:37:24,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709834837] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:24,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:24,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 02:37:24,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092720971] [2025-01-10 02:37:24,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:24,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 02:37:24,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:24,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 02:37:24,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:37:24,652 INFO L87 Difference]: Start difference. First operand 332 states and 366 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) [2025-01-10 02:37:24,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:24,933 INFO L93 Difference]: Finished difference Result 376 states and 382 transitions. [2025-01-10 02:37:24,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 02:37:24,934 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 [2025-01-10 02:37:24,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:24,935 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:24,935 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:24,935 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2025-01-10 02:37:24,935 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 225 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:24,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 937 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:37:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:24,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 333. [2025-01-10 02:37:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 221 states have (on average 1.5972850678733033) internal successors, (353), 322 states have internal predecessors, (353), 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) [2025-01-10 02:37:24,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 367 transitions. [2025-01-10 02:37:24,949 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 367 transitions. Word has length 67 [2025-01-10 02:37:24,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:24,949 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 367 transitions. [2025-01-10 02:37:24,949 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) [2025-01-10 02:37:24,949 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 367 transitions. [2025-01-10 02:37:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-01-10 02:37:24,949 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:24,949 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:24,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:25,150 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 [2025-01-10 02:37:25,150 INFO L396 AbstractCegarLoop]: === Iteration 24 === 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)] === [2025-01-10 02:37:25,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash -317084867, now seen corresponding path program 1 times [2025-01-10 02:37:25,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:25,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572254762] [2025-01-10 02:37:25,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:25,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:25,160 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-10 02:37:25,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-10 02:37:25,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:25,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:25,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1388066801] [2025-01-10 02:37:25,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:25,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:25,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:25,170 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) [2025-01-10 02:37:25,172 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 [2025-01-10 02:37:25,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-10 02:37:25,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-10 02:37:25,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:25,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:25,261 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-01-10 02:37:25,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:25,270 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 [2025-01-10 02:37:25,397 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 [2025-01-10 02:37:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:25,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:25,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572254762] [2025-01-10 02:37:25,487 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:25,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388066801] [2025-01-10 02:37:25,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388066801] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:25,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:25,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-10 02:37:25,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520253215] [2025-01-10 02:37:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 02:37:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:25,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 02:37:25,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2025-01-10 02:37:25,488 INFO L87 Difference]: Start difference. First operand 333 states and 367 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) [2025-01-10 02:37:25,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:25,748 INFO L93 Difference]: Finished difference Result 376 states and 381 transitions. [2025-01-10 02:37:25,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-10 02:37:25,748 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 [2025-01-10 02:37:25,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:25,749 INFO L225 Difference]: With dead ends: 376 [2025-01-10 02:37:25,749 INFO L226 Difference]: Without dead ends: 375 [2025-01-10 02:37:25,750 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 [2025-01-10 02:37:25,750 INFO L435 NwaCegarLoop]: 172 mSDtfsCounter, 224 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:25,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1033 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:37:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-01-10 02:37:25,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 334. [2025-01-10 02:37:25,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 222 states have (on average 1.5945945945945945) internal successors, (354), 323 states have internal predecessors, (354), 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) [2025-01-10 02:37:25,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 368 transitions. [2025-01-10 02:37:25,758 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 368 transitions. Word has length 68 [2025-01-10 02:37:25,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:25,758 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 368 transitions. [2025-01-10 02:37:25,759 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) [2025-01-10 02:37:25,759 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 368 transitions. [2025-01-10 02:37:25,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-10 02:37:25,759 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:25,760 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] [2025-01-10 02:37:25,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-10 02:37:25,964 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 [2025-01-10 02:37:25,964 INFO L396 AbstractCegarLoop]: === Iteration 25 === 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)] === [2025-01-10 02:37:25,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1239696013, now seen corresponding path program 1 times [2025-01-10 02:37:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:25,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633641005] [2025-01-10 02:37:25,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:25,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-10 02:37:25,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-10 02:37:25,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:25,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:26,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633641005] [2025-01-10 02:37:26,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633641005] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:26,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:26,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-10 02:37:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789291848] [2025-01-10 02:37:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:26,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-10 02:37:26,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:26,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-10 02:37:26,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:37:26,124 INFO L87 Difference]: Start difference. First operand 334 states and 368 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) [2025-01-10 02:37:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:26,254 INFO L93 Difference]: Finished difference Result 364 states and 372 transitions. [2025-01-10 02:37:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-10 02:37:26,254 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 [2025-01-10 02:37:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:26,256 INFO L225 Difference]: With dead ends: 364 [2025-01-10 02:37:26,256 INFO L226 Difference]: Without dead ends: 363 [2025-01-10 02:37:26,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2025-01-10 02:37:26,257 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 134 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:26,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1109 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:37:26,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2025-01-10 02:37:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 335. [2025-01-10 02:37:26,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 223 states have (on average 1.5919282511210762) internal successors, (355), 324 states have internal predecessors, (355), 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) [2025-01-10 02:37:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 369 transitions. [2025-01-10 02:37:26,268 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 369 transitions. Word has length 69 [2025-01-10 02:37:26,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:26,268 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 369 transitions. [2025-01-10 02:37:26,269 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) [2025-01-10 02:37:26,269 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 369 transitions. [2025-01-10 02:37:26,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-10 02:37:26,269 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:26,270 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] [2025-01-10 02:37:26,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-01-10 02:37:26,270 INFO L396 AbstractCegarLoop]: === Iteration 26 === 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)] === [2025-01-10 02:37:26,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 224129535, now seen corresponding path program 1 times [2025-01-10 02:37:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:26,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37038424] [2025-01-10 02:37:26,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:26,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:26,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-10 02:37:26,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-10 02:37:26,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:26,284 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:26,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:26,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37038424] [2025-01-10 02:37:26,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37038424] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:26,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:26,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:37:26,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196942064] [2025-01-10 02:37:26,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:26,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:37:26,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:26,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:37:26,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:37:26,385 INFO L87 Difference]: Start difference. First operand 335 states and 369 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) [2025-01-10 02:37:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:26,518 INFO L93 Difference]: Finished difference Result 363 states and 371 transitions. [2025-01-10 02:37:26,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:37:26,518 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 [2025-01-10 02:37:26,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:26,519 INFO L225 Difference]: With dead ends: 363 [2025-01-10 02:37:26,519 INFO L226 Difference]: Without dead ends: 362 [2025-01-10 02:37:26,519 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 [2025-01-10 02:37:26,520 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 129 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:26,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1062 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-10 02:37:26,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2025-01-10 02:37:26,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 336. [2025-01-10 02:37:26,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 224 states have (on average 1.5892857142857142) internal successors, (356), 325 states have internal predecessors, (356), 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) [2025-01-10 02:37:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 370 transitions. [2025-01-10 02:37:26,528 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 370 transitions. Word has length 70 [2025-01-10 02:37:26,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:26,529 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 370 transitions. [2025-01-10 02:37:26,529 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) [2025-01-10 02:37:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 370 transitions. [2025-01-10 02:37:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-10 02:37:26,529 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:26,529 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] [2025-01-10 02:37:26,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-10 02:37:26,529 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:37:26,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -22434304, now seen corresponding path program 1 times [2025-01-10 02:37:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:26,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142017493] [2025-01-10 02:37:26,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:26,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:26,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-10 02:37:26,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-10 02:37:26,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:26,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:26,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142017493] [2025-01-10 02:37:26,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142017493] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:26,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:37:26,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-10 02:37:26,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995974862] [2025-01-10 02:37:26,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:26,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-10 02:37:26,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:26,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-10 02:37:26,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-10 02:37:26,642 INFO L87 Difference]: Start difference. First operand 336 states and 370 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) [2025-01-10 02:37:26,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:26,953 INFO L93 Difference]: Finished difference Result 371 states and 375 transitions. [2025-01-10 02:37:26,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-10 02:37:26,953 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 [2025-01-10 02:37:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:26,954 INFO L225 Difference]: With dead ends: 371 [2025-01-10 02:37:26,954 INFO L226 Difference]: Without dead ends: 361 [2025-01-10 02:37:26,955 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 [2025-01-10 02:37:26,955 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 149 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:26,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 568 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-10 02:37:26,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2025-01-10 02:37:26,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 336. [2025-01-10 02:37:26,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 224 states have (on average 1.5446428571428572) internal successors, (346), 325 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) [2025-01-10 02:37:26,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 360 transitions. [2025-01-10 02:37:26,962 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 360 transitions. Word has length 72 [2025-01-10 02:37:26,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:26,962 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 360 transitions. [2025-01-10 02:37:26,962 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) [2025-01-10 02:37:26,962 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 360 transitions. [2025-01-10 02:37:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-10 02:37:26,963 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:26,963 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] [2025-01-10 02:37:26,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-10 02:37:26,963 INFO L396 AbstractCegarLoop]: === Iteration 28 === 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)] === [2025-01-10 02:37:26,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:26,963 INFO L85 PathProgramCache]: Analyzing trace with hash 982128442, now seen corresponding path program 1 times [2025-01-10 02:37:26,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:26,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292582552] [2025-01-10 02:37:26,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:26,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:26,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 02:37:26,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 02:37:26,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:26,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:27,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:27,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292582552] [2025-01-10 02:37:27,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292582552] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:27,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703973961] [2025-01-10 02:37:27,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:27,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:27,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:27,177 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) [2025-01-10 02:37:27,178 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 [2025-01-10 02:37:27,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-10 02:37:27,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-10 02:37:27,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:27,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:27,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-01-10 02:37:27,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:27,384 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 [2025-01-10 02:37:27,443 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 [2025-01-10 02:37:27,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:27,457 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:37:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703973961] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:37:27,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:37:27,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2025-01-10 02:37:27,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525903783] [2025-01-10 02:37:27,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:37:27,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-10 02:37:27,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:27,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-10 02:37:27,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2025-01-10 02:37:27,459 INFO L87 Difference]: Start difference. First operand 336 states and 360 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) [2025-01-10 02:37:31,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-10 02:37:35,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2025-01-10 02:37:35,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:35,695 INFO L93 Difference]: Finished difference Result 339 states and 367 transitions. [2025-01-10 02:37:35,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-10 02:37:35,695 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 [2025-01-10 02:37:35,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:35,696 INFO L225 Difference]: With dead ends: 339 [2025-01-10 02:37:35,696 INFO L226 Difference]: Without dead ends: 337 [2025-01-10 02:37:35,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2025-01-10 02:37:35,697 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 405 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:35,697 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 790 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 580 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2025-01-10 02:37:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2025-01-10 02:37:35,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 334. [2025-01-10 02:37:35,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 224 states have (on average 1.5357142857142858) internal successors, (344), 323 states have internal predecessors, (344), 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) [2025-01-10 02:37:35,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 358 transitions. [2025-01-10 02:37:35,706 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 358 transitions. Word has length 74 [2025-01-10 02:37:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:35,706 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 358 transitions. [2025-01-10 02:37:35,706 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) [2025-01-10 02:37:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 358 transitions. [2025-01-10 02:37:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-10 02:37:35,706 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:35,707 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] [2025-01-10 02:37:35,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:35,911 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,SelfDestructingSolverStorable27 [2025-01-10 02:37:35,911 INFO L396 AbstractCegarLoop]: === Iteration 29 === 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)] === [2025-01-10 02:37:35,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:35,912 INFO L85 PathProgramCache]: Analyzing trace with hash 381210790, now seen corresponding path program 1 times [2025-01-10 02:37:35,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:35,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638252938] [2025-01-10 02:37:35,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:35,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:35,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 02:37:35,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:37:35,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:35,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:36,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:36,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:36,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638252938] [2025-01-10 02:37:36,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638252938] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:36,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858994187] [2025-01-10 02:37:36,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:36,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:36,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:36,154 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) [2025-01-10 02:37:36,156 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 [2025-01-10 02:37:36,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-10 02:37:36,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-10 02:37:36,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:36,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:36,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-10 02:37:36,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:36,391 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 [2025-01-10 02:37:36,430 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 [2025-01-10 02:37:36,443 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:36,443 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:37:36,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:36,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858994187] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-10 02:37:36,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-10 02:37:36,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2025-01-10 02:37:36,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454057238] [2025-01-10 02:37:36,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-10 02:37:36,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-01-10 02:37:36,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:36,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-01-10 02:37:36,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2025-01-10 02:37:36,606 INFO L87 Difference]: Start difference. First operand 334 states and 358 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) [2025-01-10 02:37:37,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:37,310 INFO L93 Difference]: Finished difference Result 362 states and 370 transitions. [2025-01-10 02:37:37,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 02:37:37,310 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 [2025-01-10 02:37:37,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:37,311 INFO L225 Difference]: With dead ends: 362 [2025-01-10 02:37:37,313 INFO L226 Difference]: Without dead ends: 360 [2025-01-10 02:37:37,314 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2025-01-10 02:37:37,314 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 1259 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:37,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1260 Valid, 1109 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-10 02:37:37,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-01-10 02:37:37,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 332. [2025-01-10 02:37:37,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 224 states have (on average 1.5267857142857142) internal successors, (342), 321 states have internal predecessors, (342), 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) [2025-01-10 02:37:37,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 356 transitions. [2025-01-10 02:37:37,338 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 356 transitions. Word has length 75 [2025-01-10 02:37:37,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:37,338 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 356 transitions. [2025-01-10 02:37:37,338 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) [2025-01-10 02:37:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 356 transitions. [2025-01-10 02:37:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2025-01-10 02:37:37,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:37,339 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] [2025-01-10 02:37:37,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:37,539 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 [2025-01-10 02:37:37,539 INFO L396 AbstractCegarLoop]: === Iteration 30 === 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)] === [2025-01-10 02:37:37,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:37,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1067367236, now seen corresponding path program 1 times [2025-01-10 02:37:37,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:37,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308942758] [2025-01-10 02:37:37,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:37,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:37,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-01-10 02:37:37,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-01-10 02:37:37,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:37,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:37,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872159397] [2025-01-10 02:37:37,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:37,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:37,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:37,568 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) [2025-01-10 02:37:37,573 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 [2025-01-10 02:37:37,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 76 statements into 1 equivalence classes. [2025-01-10 02:37:37,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 76 of 76 statements. [2025-01-10 02:37:37,669 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:37,669 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:37,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-10 02:37:37,671 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:37,675 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 [2025-01-10 02:37:37,769 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 [2025-01-10 02:37:37,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:37,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:37:42,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:42,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308942758] [2025-01-10 02:37:42,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:42,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872159397] [2025-01-10 02:37:42,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872159397] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:42,061 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:37:42,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-01-10 02:37:42,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635464455] [2025-01-10 02:37:42,061 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:37:42,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 02:37:42,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:42,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 02:37:42,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=221, Unknown=1, NotChecked=0, Total=272 [2025-01-10 02:37:42,062 INFO L87 Difference]: Start difference. First operand 332 states and 356 transitions. Second operand has 11 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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) [2025-01-10 02:37:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:42,530 INFO L93 Difference]: Finished difference Result 458 states and 464 transitions. [2025-01-10 02:37:42,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 02:37:42,530 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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 76 [2025-01-10 02:37:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:42,531 INFO L225 Difference]: With dead ends: 458 [2025-01-10 02:37:42,532 INFO L226 Difference]: Without dead ends: 457 [2025-01-10 02:37:42,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=99, Invalid=362, Unknown=1, NotChecked=0, Total=462 [2025-01-10 02:37:42,533 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 497 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:42,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1193 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:37:42,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2025-01-10 02:37:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 384. [2025-01-10 02:37:42,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5808823529411764) internal successors, (430), 370 states have internal predecessors, (430), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:37:42,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 450 transitions. [2025-01-10 02:37:42,555 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 450 transitions. Word has length 76 [2025-01-10 02:37:42,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:42,555 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 450 transitions. [2025-01-10 02:37:42,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.0) internal successors, (72), 9 states have internal predecessors, (72), 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) [2025-01-10 02:37:42,555 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 450 transitions. [2025-01-10 02:37:42,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2025-01-10 02:37:42,555 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:42,555 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:37:42,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:42,756 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 [2025-01-10 02:37:42,756 INFO L396 AbstractCegarLoop]: === Iteration 31 === 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)] === [2025-01-10 02:37:42,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:42,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1271354216, now seen corresponding path program 1 times [2025-01-10 02:37:42,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:42,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150457339] [2025-01-10 02:37:42,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:42,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:42,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-10 02:37:42,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-10 02:37:42,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:42,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:42,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21507450] [2025-01-10 02:37:42,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:42,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:42,778 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) [2025-01-10 02:37:42,780 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 [2025-01-10 02:37:42,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 77 statements into 1 equivalence classes. [2025-01-10 02:37:42,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 77 of 77 statements. [2025-01-10 02:37:42,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:42,911 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:42,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-01-10 02:37:42,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:42,920 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 [2025-01-10 02:37:43,014 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 23 treesize of output 3 [2025-01-10 02:37:43,057 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2025-01-10 02:37:43,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:43,071 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:37:43,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:43,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150457339] [2025-01-10 02:37:43,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:43,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21507450] [2025-01-10 02:37:43,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21507450] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:43,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:37:43,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2025-01-10 02:37:43,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728982845] [2025-01-10 02:37:43,511 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:37:43,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-01-10 02:37:43,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:43,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-01-10 02:37:43,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2025-01-10 02:37:43,512 INFO L87 Difference]: Start difference. First operand 384 states and 450 transitions. Second operand has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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) [2025-01-10 02:37:44,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:44,229 INFO L93 Difference]: Finished difference Result 457 states and 463 transitions. [2025-01-10 02:37:44,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-10 02:37:44,230 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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 77 [2025-01-10 02:37:44,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:44,231 INFO L225 Difference]: With dead ends: 457 [2025-01-10 02:37:44,231 INFO L226 Difference]: Without dead ends: 456 [2025-01-10 02:37:44,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2025-01-10 02:37:44,232 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 431 mSDsluCounter, 1057 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:44,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1241 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-10 02:37:44,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2025-01-10 02:37:44,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 384. [2025-01-10 02:37:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5772058823529411) internal successors, (429), 370 states have internal predecessors, (429), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:37:44,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 449 transitions. [2025-01-10 02:37:44,240 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 449 transitions. Word has length 77 [2025-01-10 02:37:44,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:44,240 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 449 transitions. [2025-01-10 02:37:44,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 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) [2025-01-10 02:37:44,240 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 449 transitions. [2025-01-10 02:37:44,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-01-10 02:37:44,240 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:44,241 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] [2025-01-10 02:37:44,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-10 02:37:44,445 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 [2025-01-10 02:37:44,445 INFO L396 AbstractCegarLoop]: === Iteration 32 === 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)] === [2025-01-10 02:37:44,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:44,446 INFO L85 PathProgramCache]: Analyzing trace with hash 757275198, now seen corresponding path program 1 times [2025-01-10 02:37:44,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:44,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785268556] [2025-01-10 02:37:44,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:44,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:44,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-10 02:37:44,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 02:37:44,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:44,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:44,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860704103] [2025-01-10 02:37:44,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:44,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:44,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:44,483 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) [2025-01-10 02:37:44,489 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 [2025-01-10 02:37:44,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-01-10 02:37:44,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-01-10 02:37:44,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:44,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:44,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-01-10 02:37:44,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:44,603 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 [2025-01-10 02:37:44,687 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 [2025-01-10 02:37:44,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:44,755 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:37:45,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:45,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785268556] [2025-01-10 02:37:45,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:45,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860704103] [2025-01-10 02:37:45,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860704103] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:45,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:37:45,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-01-10 02:37:45,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948946308] [2025-01-10 02:37:45,069 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:37:45,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 02:37:45,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:45,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 02:37:45,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-01-10 02:37:45,070 INFO L87 Difference]: Start difference. First operand 384 states and 449 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) [2025-01-10 02:37:45,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:45,611 INFO L93 Difference]: Finished difference Result 456 states and 462 transitions. [2025-01-10 02:37:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 02:37:45,611 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 [2025-01-10 02:37:45,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:45,612 INFO L225 Difference]: With dead ends: 456 [2025-01-10 02:37:45,613 INFO L226 Difference]: Without dead ends: 455 [2025-01-10 02:37:45,613 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 [2025-01-10 02:37:45,613 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 358 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:45,613 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1485 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-10 02:37:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2025-01-10 02:37:45,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 384. [2025-01-10 02:37:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 370 states have internal predecessors, (428), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:37:45,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 448 transitions. [2025-01-10 02:37:45,621 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 448 transitions. Word has length 78 [2025-01-10 02:37:45,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:45,622 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 448 transitions. [2025-01-10 02:37:45,622 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) [2025-01-10 02:37:45,622 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 448 transitions. [2025-01-10 02:37:45,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-01-10 02:37:45,622 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:45,622 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] [2025-01-10 02:37:45,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-10 02:37:45,823 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 [2025-01-10 02:37:45,823 INFO L396 AbstractCegarLoop]: === Iteration 33 === 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)] === [2025-01-10 02:37:45,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:45,824 INFO L85 PathProgramCache]: Analyzing trace with hash 2000694826, now seen corresponding path program 1 times [2025-01-10 02:37:45,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:45,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204603084] [2025-01-10 02:37:45,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:45,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:45,833 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-10 02:37:45,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-10 02:37:45,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:45,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:45,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1485407276] [2025-01-10 02:37:45,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:45,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:45,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:45,850 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) [2025-01-10 02:37:45,852 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 [2025-01-10 02:37:45,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-10 02:37:45,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-10 02:37:45,956 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:45,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:45,958 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-10 02:37:45,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:45,965 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 [2025-01-10 02:37:46,079 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 23 treesize of output 3 [2025-01-10 02:37:46,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-01-10 02:37:46,155 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:37:46,155 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:37:58,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:37:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204603084] [2025-01-10 02:37:58,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:37:58,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485407276] [2025-01-10 02:37:58,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485407276] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:37:58,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:37:58,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2025-01-10 02:37:58,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206094861] [2025-01-10 02:37:58,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:37:58,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-01-10 02:37:58,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:37:58,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-01-10 02:37:58,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=308, Unknown=3, NotChecked=0, Total=380 [2025-01-10 02:37:58,708 INFO L87 Difference]: Start difference. First operand 384 states and 448 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2025-01-10 02:37:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:37:59,567 INFO L93 Difference]: Finished difference Result 455 states and 461 transitions. [2025-01-10 02:37:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-01-10 02:37:59,567 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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 79 [2025-01-10 02:37:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:37:59,569 INFO L225 Difference]: With dead ends: 455 [2025-01-10 02:37:59,569 INFO L226 Difference]: Without dead ends: 454 [2025-01-10 02:37:59,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=140, Invalid=507, Unknown=3, NotChecked=0, Total=650 [2025-01-10 02:37:59,569 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 425 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-10 02:37:59,569 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1315 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-10 02:37:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2025-01-10 02:37:59,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 384. [2025-01-10 02:37:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5698529411764706) internal successors, (427), 370 states have internal predecessors, (427), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:37:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 447 transitions. [2025-01-10 02:37:59,577 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 447 transitions. Word has length 79 [2025-01-10 02:37:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:37:59,577 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 447 transitions. [2025-01-10 02:37:59,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 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) [2025-01-10 02:37:59,577 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 447 transitions. [2025-01-10 02:37:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-01-10 02:37:59,578 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:37:59,578 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] [2025-01-10 02:37:59,585 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-10 02:37:59,782 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 [2025-01-10 02:37:59,782 INFO L396 AbstractCegarLoop]: === Iteration 34 === 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)] === [2025-01-10 02:37:59,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:37:59,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1891997632, now seen corresponding path program 1 times [2025-01-10 02:37:59,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:37:59,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743051961] [2025-01-10 02:37:59,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:59,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:37:59,790 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-10 02:37:59,797 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-10 02:37:59,797 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:59,797 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:37:59,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447502019] [2025-01-10 02:37:59,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:37:59,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:37:59,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:37:59,800 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) [2025-01-10 02:37:59,801 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 [2025-01-10 02:37:59,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-10 02:37:59,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-10 02:37:59,903 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:37:59,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:37:59,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 36 conjuncts are in the unsatisfiable core [2025-01-10 02:37:59,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:37:59,912 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 [2025-01-10 02:38:00,004 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 [2025-01-10 02:38:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:38:00,096 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:38:00,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:38:00,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743051961] [2025-01-10 02:38:00,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:38:00,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447502019] [2025-01-10 02:38:00,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447502019] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:38:00,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:38:00,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-01-10 02:38:00,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662572417] [2025-01-10 02:38:00,531 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:38:00,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 02:38:00,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:38:00,531 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 02:38:00,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2025-01-10 02:38:00,532 INFO L87 Difference]: Start difference. First operand 384 states and 447 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) [2025-01-10 02:38:01,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:38:01,074 INFO L93 Difference]: Finished difference Result 454 states and 460 transitions. [2025-01-10 02:38:01,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 02:38:01,075 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 [2025-01-10 02:38:01,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:38:01,077 INFO L225 Difference]: With dead ends: 454 [2025-01-10 02:38:01,077 INFO L226 Difference]: Without dead ends: 453 [2025-01-10 02:38:01,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2025-01-10 02:38:01,078 INFO L435 NwaCegarLoop]: 187 mSDtfsCounter, 420 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-10 02:38:01,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1373 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-10 02:38:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2025-01-10 02:38:01,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 384. [2025-01-10 02:38:01,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5661764705882353) internal successors, (426), 370 states have internal predecessors, (426), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:38:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 446 transitions. [2025-01-10 02:38:01,095 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 446 transitions. Word has length 80 [2025-01-10 02:38:01,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:38:01,096 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 446 transitions. [2025-01-10 02:38:01,096 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) [2025-01-10 02:38:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 446 transitions. [2025-01-10 02:38:01,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-01-10 02:38:01,096 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:38:01,096 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] [2025-01-10 02:38:01,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-01-10 02:38:01,296 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 [2025-01-10 02:38:01,297 INFO L396 AbstractCegarLoop]: === Iteration 35 === 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)] === [2025-01-10 02:38:01,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:38:01,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1477615380, now seen corresponding path program 1 times [2025-01-10 02:38:01,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:38:01,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674886118] [2025-01-10 02:38:01,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:01,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:38:01,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-10 02:38:01,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-10 02:38:01,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:01,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:38:01,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1703959599] [2025-01-10 02:38:01,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:01,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:38:01,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:38:01,325 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) [2025-01-10 02:38:01,326 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 [2025-01-10 02:38:01,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-01-10 02:38:01,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-01-10 02:38:01,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:01,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:38:01,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 31 conjuncts are in the unsatisfiable core [2025-01-10 02:38:01,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:38:01,437 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 [2025-01-10 02:38:01,525 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 23 treesize of output 3 [2025-01-10 02:38:01,610 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 [2025-01-10 02:38:01,632 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:38:01,633 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:38:39,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:38:39,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674886118] [2025-01-10 02:38:39,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:38:39,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703959599] [2025-01-10 02:38:39,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703959599] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:38:39,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:38:39,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2025-01-10 02:38:39,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007742938] [2025-01-10 02:38:39,684 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:38:39,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-10 02:38:39,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:38:39,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-10 02:38:39,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=371, Unknown=9, NotChecked=0, Total=462 [2025-01-10 02:38:39,685 INFO L87 Difference]: Start difference. First operand 384 states and 446 transitions. Second operand has 13 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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) [2025-01-10 02:38:40,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:38:40,486 INFO L93 Difference]: Finished difference Result 453 states and 459 transitions. [2025-01-10 02:38:40,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-10 02:38:40,486 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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 81 [2025-01-10 02:38:40,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:38:40,487 INFO L225 Difference]: With dead ends: 453 [2025-01-10 02:38:40,487 INFO L226 Difference]: Without dead ends: 452 [2025-01-10 02:38:40,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 87 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 37.8s TimeCoverageRelationStatistics Valid=173, Invalid=630, Unknown=9, NotChecked=0, Total=812 [2025-01-10 02:38:40,488 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 524 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-10 02:38:40,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 1410 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-10 02:38:40,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2025-01-10 02:38:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 384. [2025-01-10 02:38:40,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5625) internal successors, (425), 370 states have internal predecessors, (425), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:38:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 445 transitions. [2025-01-10 02:38:40,496 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 445 transitions. Word has length 81 [2025-01-10 02:38:40,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:38:40,497 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 445 transitions. [2025-01-10 02:38:40,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 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) [2025-01-10 02:38:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 445 transitions. [2025-01-10 02:38:40,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-10 02:38:40,499 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:38:40,499 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] [2025-01-10 02:38:40,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-01-10 02:38:40,699 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 [2025-01-10 02:38:40,700 INFO L396 AbstractCegarLoop]: === Iteration 36 === 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)] === [2025-01-10 02:38:40,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:38:40,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1438563650, now seen corresponding path program 1 times [2025-01-10 02:38:40,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:38:40,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787604784] [2025-01-10 02:38:40,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:40,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:38:40,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-10 02:38:40,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 02:38:40,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:40,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:38:40,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772119077] [2025-01-10 02:38:40,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:40,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:38:40,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:38:40,745 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) [2025-01-10 02:38:40,746 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 [2025-01-10 02:38:40,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-10 02:38:40,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 02:38:40,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:40,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:38:40,865 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-01-10 02:38:40,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:38:40,870 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 [2025-01-10 02:38:40,940 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 [2025-01-10 02:38:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:38:41,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-10 02:38:41,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:38:41,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787604784] [2025-01-10 02:38:41,623 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:38:41,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772119077] [2025-01-10 02:38:41,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772119077] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-10 02:38:41,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-01-10 02:38:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-01-10 02:38:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357152104] [2025-01-10 02:38:41,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-01-10 02:38:41,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-10 02:38:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:38:41,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-10 02:38:41,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2025-01-10 02:38:41,625 INFO L87 Difference]: Start difference. First operand 384 states and 445 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) [2025-01-10 02:38:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:38:42,307 INFO L93 Difference]: Finished difference Result 452 states and 458 transitions. [2025-01-10 02:38:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-10 02:38:42,308 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 [2025-01-10 02:38:42,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:38:42,309 INFO L225 Difference]: With dead ends: 452 [2025-01-10 02:38:42,310 INFO L226 Difference]: Without dead ends: 451 [2025-01-10 02:38:42,310 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 [2025-01-10 02:38:42,310 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 410 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-10 02:38:42,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1642 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-10 02:38:42,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2025-01-10 02:38:42,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 384. [2025-01-10 02:38:42,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5588235294117647) internal successors, (424), 370 states have internal predecessors, (424), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:38:42,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 444 transitions. [2025-01-10 02:38:42,318 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 444 transitions. Word has length 82 [2025-01-10 02:38:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:38:42,318 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 444 transitions. [2025-01-10 02:38:42,319 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) [2025-01-10 02:38:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 444 transitions. [2025-01-10 02:38:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-10 02:38:42,320 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:38:42,320 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-10 02:38:42,327 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-10 02:38:42,524 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 [2025-01-10 02:38:42,524 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2025-01-10 02:38:42,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:38:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1908664022, now seen corresponding path program 1 times [2025-01-10 02:38:42,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:38:42,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962860951] [2025-01-10 02:38:42,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:42,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:38:42,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-10 02:38:42,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 02:38:42,548 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:42,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:38:42,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [363391630] [2025-01-10 02:38:42,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:42,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:38:42,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:38:42,553 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) [2025-01-10 02:38:42,554 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 [2025-01-10 02:38:42,642 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-10 02:38:42,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-10 02:38:42,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:42,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:38:42,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-10 02:38:42,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:38:42,672 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 [2025-01-10 02:38:42,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:38:42,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-10 02:38:42,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-10 02:38:42,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962860951] [2025-01-10 02:38:42,769 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-01-10 02:38:42,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363391630] [2025-01-10 02:38:42,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363391630] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-10 02:38:42,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-10 02:38:42,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-10 02:38:42,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343442501] [2025-01-10 02:38:42,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-10 02:38:42,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-10 02:38:42,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-10 02:38:42,770 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-10 02:38:42,770 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-10 02:38:42,770 INFO L87 Difference]: Start difference. First operand 384 states and 444 transitions. Second operand has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2025-01-10 02:38:42,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-10 02:38:42,980 INFO L93 Difference]: Finished difference Result 409 states and 449 transitions. [2025-01-10 02:38:42,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-10 02:38:42,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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 82 [2025-01-10 02:38:42,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-10 02:38:42,982 INFO L225 Difference]: With dead ends: 409 [2025-01-10 02:38:42,982 INFO L226 Difference]: Without dead ends: 407 [2025-01-10 02:38:42,982 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-10 02:38:42,983 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 125 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-10 02:38:42,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 728 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-10 02:38:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2025-01-10 02:38:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 384. [2025-01-10 02:38:43,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5514705882352942) internal successors, (422), 370 states have internal predecessors, (422), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2025-01-10 02:38:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 442 transitions. [2025-01-10 02:38:43,002 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 442 transitions. Word has length 82 [2025-01-10 02:38:43,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-10 02:38:43,002 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 442 transitions. [2025-01-10 02:38:43,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.6) internal successors, (78), 6 states have internal predecessors, (78), 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) [2025-01-10 02:38:43,002 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 442 transitions. [2025-01-10 02:38:43,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-10 02:38:43,003 INFO L210 NwaCegarLoop]: Found error trace [2025-01-10 02:38:43,003 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] [2025-01-10 02:38:43,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-01-10 02:38:43,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-01-10 02:38:43,203 INFO L396 AbstractCegarLoop]: === Iteration 38 === 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)] === [2025-01-10 02:38:43,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-10 02:38:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1645800366, now seen corresponding path program 1 times [2025-01-10 02:38:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-10 02:38:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465860801] [2025-01-10 02:38:43,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:43,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-10 02:38:43,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-10 02:38:43,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-10 02:38:43,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:43,225 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-10 02:38:43,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [776862086] [2025-01-10 02:38:43,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-10 02:38:43,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-10 02:38:43,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-10 02:38:43,228 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-10 02:38:43,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-10 02:38:43,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-10 02:38:43,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-10 02:38:43,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-10 02:38:43,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-10 02:38:43,336 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-10 02:38:43,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-10 02:38:43,340 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 [2025-01-10 02:38:43,450 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 23 treesize of output 3 [2025-01-10 02:38:43,575 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 [2025-01-10 02:38:43,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-10 02:38:43,604 INFO L312 TraceCheckSpWp]: Computing backward predicates...