./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 45898d4df949634911027a72c0e1c79e1edaab63547cca5c16238cef1218e556 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 21:16:23,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 21:16:23,681 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 21:16:23,686 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 21:16:23,687 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 21:16:23,709 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 21:16:23,709 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 21:16:23,710 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 21:16:23,710 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 21:16:23,711 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 21:16:23,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 21:16:23,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 21:16:23,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 21:16:23,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 21:16:23,713 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 21:16:23,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 21:16:23,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 21:16:23,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 21:16:23,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 21:16:23,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 21:16:23,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 21:16:23,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 21:16:23,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 21:16:23,716 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 21:16:23,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 21:16:23,717 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 21:16:23,717 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 21:16:23,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 21:16:23,718 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 21:16:23,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 21:16:23,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 21:16:23,719 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 21:16:23,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 21:16:23,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 21:16:23,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:16:23,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 21:16:23,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 21:16:23,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 21:16:23,722 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 21:16:23,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 21:16:23,722 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 21:16:23,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 21:16:23,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 21:16:23,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 21:16:23,724 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45898d4df949634911027a72c0e1c79e1edaab63547cca5c16238cef1218e556 [2024-10-11 21:16:24,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 21:16:24,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 21:16:24,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 21:16:24,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 21:16:24,035 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 21:16:24,036 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c [2024-10-11 21:16:25,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 21:16:25,658 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 21:16:25,658 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_loop-simple/recursified_nested_4.c [2024-10-11 21:16:25,667 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/98742fd82/96370e3ce47943e595b07cf5c32078ec/FLAG0977df163 [2024-10-11 21:16:26,023 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/98742fd82/96370e3ce47943e595b07cf5c32078ec [2024-10-11 21:16:26,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 21:16:26,027 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 21:16:26,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 21:16:26,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 21:16:26,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 21:16:26,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29df4727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26, skipping insertion in model container [2024-10-11 21:16:26,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 21:16:26,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:16:26,276 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 21:16:26,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 21:16:26,317 INFO L204 MainTranslator]: Completed translation [2024-10-11 21:16:26,318 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26 WrapperNode [2024-10-11 21:16:26,318 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 21:16:26,319 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 21:16:26,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 21:16:26,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 21:16:26,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,359 INFO L138 Inliner]: procedures = 15, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2024-10-11 21:16:26,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 21:16:26,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 21:16:26,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 21:16:26,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 21:16:26,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,375 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,398 INFO L175 MemorySlicer]: Split 26 memory accesses to 5 slices as follows [2, 6, 6, 6, 6]. 23 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 1, 1, 1, 1]. The 8 writes are split as follows [0, 2, 2, 2, 2]. [2024-10-11 21:16:26,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,411 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 21:16:26,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 21:16:26,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 21:16:26,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 21:16:26,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (1/1) ... [2024-10-11 21:16:26,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 21:16:26,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:26,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 21:16:26,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 21:16:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 21:16:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 21:16:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 21:16:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 21:16:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 21:16:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 21:16:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 21:16:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 21:16:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 21:16:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 21:16:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 21:16:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 21:16:26,525 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_24_to_25_0 [2024-10-11 21:16:26,525 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_24_to_25_0 [2024-10-11 21:16:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_23_to_24_0 [2024-10-11 21:16:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_23_to_24_0 [2024-10-11 21:16:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_22_to_23_0 [2024-10-11 21:16:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_22_to_23_0 [2024-10-11 21:16:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_25_to_25_0 [2024-10-11 21:16:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_25_to_25_0 [2024-10-11 21:16:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 21:16:26,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 21:16:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 21:16:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 21:16:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 21:16:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 21:16:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 21:16:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 21:16:26,637 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 21:16:26,639 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 21:16:26,991 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-10-11 21:16:26,991 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 21:16:27,028 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 21:16:27,029 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 21:16:27,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:16:27 BoogieIcfgContainer [2024-10-11 21:16:27,029 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 21:16:27,032 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 21:16:27,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 21:16:27,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 21:16:27,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 09:16:26" (1/3) ... [2024-10-11 21:16:27,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7840fee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:16:27, skipping insertion in model container [2024-10-11 21:16:27,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 09:16:26" (2/3) ... [2024-10-11 21:16:27,038 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7840fee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 09:16:27, skipping insertion in model container [2024-10-11 21:16:27,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 09:16:27" (3/3) ... [2024-10-11 21:16:27,039 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_nested_4.c [2024-10-11 21:16:27,055 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 21:16:27,055 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 21:16:27,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 21:16:27,140 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;@72038408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 21:16:27,140 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-10-11 21:16:27,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 32 states have (on average 1.5) internal successors, (48), 44 states have internal predecessors, (48), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-11 21:16:27,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 21:16:27,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:27,153 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:27,154 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:27,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:27,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1456900990, now seen corresponding path program 1 times [2024-10-11 21:16:27,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:27,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448884202] [2024-10-11 21:16:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:27,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:27,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:27,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:16:27,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:27,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448884202] [2024-10-11 21:16:27,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448884202] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:27,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:27,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 21:16:27,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032634562] [2024-10-11 21:16:27,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:27,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:16:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:27,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:16:27,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 21:16:27,760 INFO L87 Difference]: Start difference. First operand has 53 states, 32 states have (on average 1.5) internal successors, (48), 44 states have internal predecessors, (48), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-10-11 21:16:28,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:28,113 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2024-10-11 21:16:28,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:16:28,115 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 11 [2024-10-11 21:16:28,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:28,123 INFO L225 Difference]: With dead ends: 74 [2024-10-11 21:16:28,123 INFO L226 Difference]: Without dead ends: 54 [2024-10-11 21:16:28,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-11 21:16:28,130 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 30 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:28,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 189 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:16:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-11 21:16:28,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 48. [2024-10-11 21:16:28,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 38 states have internal predecessors, (39), 9 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 21:16:28,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-10-11 21:16:28,165 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 11 [2024-10-11 21:16:28,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:28,166 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-10-11 21:16:28,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-10-11 21:16:28,166 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-10-11 21:16:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 21:16:28,167 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:28,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:28,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 21:16:28,168 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_25_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:28,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:28,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1916990516, now seen corresponding path program 1 times [2024-10-11 21:16:28,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:28,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783944389] [2024-10-11 21:16:28,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:28,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:16:28,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:28,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783944389] [2024-10-11 21:16:28,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783944389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:28,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:28,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 21:16:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834972080] [2024-10-11 21:16:28,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:28,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:16:28,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:28,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:16:28,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:16:28,418 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:28,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:28,490 INFO L93 Difference]: Finished difference Result 96 states and 117 transitions. [2024-10-11 21:16:28,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:16:28,492 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-11 21:16:28,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:28,495 INFO L225 Difference]: With dead ends: 96 [2024-10-11 21:16:28,495 INFO L226 Difference]: Without dead ends: 53 [2024-10-11 21:16:28,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:16:28,497 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:28,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:16:28,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-10-11 21:16:28,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2024-10-11 21:16:28,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 40 states have internal predecessors, (42), 9 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 21:16:28,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2024-10-11 21:16:28,510 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 14 [2024-10-11 21:16:28,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:28,511 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2024-10-11 21:16:28,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:28,511 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2024-10-11 21:16:28,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 21:16:28,512 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:28,512 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:28,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 21:16:28,513 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_25_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:28,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 702836230, now seen corresponding path program 1 times [2024-10-11 21:16:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:28,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828921583] [2024-10-11 21:16:28,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:28,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:28,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:16:28,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:28,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828921583] [2024-10-11 21:16:28,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828921583] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:28,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:28,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 21:16:28,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804557574] [2024-10-11 21:16:28,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:28,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 21:16:28,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:28,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 21:16:28,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:16:28,606 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:28,635 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2024-10-11 21:16:28,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 21:16:28,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2024-10-11 21:16:28,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:28,638 INFO L225 Difference]: With dead ends: 51 [2024-10-11 21:16:28,639 INFO L226 Difference]: Without dead ends: 50 [2024-10-11 21:16:28,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 21:16:28,640 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:28,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:16:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-10-11 21:16:28,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-10-11 21:16:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 39 states have internal predecessors, (41), 9 states have call successors, (9), 6 states have call predecessors, (9), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-10-11 21:16:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 57 transitions. [2024-10-11 21:16:28,657 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 57 transitions. Word has length 15 [2024-10-11 21:16:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:28,658 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 57 transitions. [2024-10-11 21:16:28,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:28,659 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 57 transitions. [2024-10-11 21:16:28,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 21:16:28,659 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:28,660 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:28,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 21:16:28,660 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:28,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:28,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1911039939, now seen corresponding path program 1 times [2024-10-11 21:16:28,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:28,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402165653] [2024-10-11 21:16:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:28,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:16:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:28,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:16:28,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:28,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402165653] [2024-10-11 21:16:28,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402165653] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:28,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:28,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 21:16:28,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186723834] [2024-10-11 21:16:28,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:28,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:16:28,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:28,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:16:28,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:16:28,831 INFO L87 Difference]: Start difference. First operand 50 states and 57 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 21:16:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:28,967 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2024-10-11 21:16:28,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:16:28,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 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 14 [2024-10-11 21:16:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:28,970 INFO L225 Difference]: With dead ends: 110 [2024-10-11 21:16:28,970 INFO L226 Difference]: Without dead ends: 65 [2024-10-11 21:16:28,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:16:28,974 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 19 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:28,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 122 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-11 21:16:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2024-10-11 21:16:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.303030303030303) internal successors, (43), 41 states have internal predecessors, (43), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-10-11 21:16:28,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2024-10-11 21:16:28,982 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 14 [2024-10-11 21:16:28,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:28,983 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2024-10-11 21:16:28,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 21:16:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2024-10-11 21:16:28,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 21:16:28,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:28,984 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:28,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 21:16:28,984 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_25_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:28,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:28,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1500420822, now seen corresponding path program 1 times [2024-10-11 21:16:28,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:28,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784517487] [2024-10-11 21:16:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 21:16:29,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:29,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784517487] [2024-10-11 21:16:29,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784517487] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:29,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:29,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 21:16:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531206097] [2024-10-11 21:16:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:29,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:16:29,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:29,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:16:29,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 21:16:29,208 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:29,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:29,313 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2024-10-11 21:16:29,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:16:29,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-10-11 21:16:29,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:29,315 INFO L225 Difference]: With dead ends: 58 [2024-10-11 21:16:29,315 INFO L226 Difference]: Without dead ends: 57 [2024-10-11 21:16:29,315 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-11 21:16:29,316 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:29,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 193 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:29,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-11 21:16:29,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 52. [2024-10-11 21:16:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 32 states have (on average 1.28125) internal successors, (41), 39 states have internal predecessors, (41), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2024-10-11 21:16:29,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2024-10-11 21:16:29,324 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 19 [2024-10-11 21:16:29,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:29,324 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2024-10-11 21:16:29,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (5), 2 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:16:29,325 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2024-10-11 21:16:29,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-11 21:16:29,326 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:29,326 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:29,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 21:16:29,326 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:29,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:29,327 INFO L85 PathProgramCache]: Analyzing trace with hash 1981663163, now seen corresponding path program 1 times [2024-10-11 21:16:29,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:29,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973734082] [2024-10-11 21:16:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:29,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:29,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:29,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-11 21:16:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:29,468 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 21:16:29,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:29,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973734082] [2024-10-11 21:16:29,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973734082] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:29,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430654010] [2024-10-11 21:16:29,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:29,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:29,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:29,472 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:29,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 21:16:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:29,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 21:16:29,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:29,626 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 [2024-10-11 21:16:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 21:16:29,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:16:29,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430654010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:29,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:16:29,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2024-10-11 21:16:29,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805387426] [2024-10-11 21:16:29,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:29,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:16:29,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:29,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:16:29,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:16:29,693 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:16:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:29,826 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2024-10-11 21:16:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:16:29,826 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2024-10-11 21:16:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:29,827 INFO L225 Difference]: With dead ends: 101 [2024-10-11 21:16:29,827 INFO L226 Difference]: Without dead ends: 54 [2024-10-11 21:16:29,828 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-11 21:16:29,829 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:29,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 57 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:29,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-11 21:16:29,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2024-10-11 21:16:29,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.2727272727272727) internal successors, (42), 40 states have internal predecessors, (42), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-10-11 21:16:29,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 61 transitions. [2024-10-11 21:16:29,836 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 61 transitions. Word has length 22 [2024-10-11 21:16:29,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:29,837 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 61 transitions. [2024-10-11 21:16:29,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:16:29,837 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2024-10-11 21:16:29,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 21:16:29,838 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:29,838 INFO L215 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] [2024-10-11 21:16:29,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 21:16:30,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:30,039 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:30,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:30,040 INFO L85 PathProgramCache]: Analyzing trace with hash -214899351, now seen corresponding path program 1 times [2024-10-11 21:16:30,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:30,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572310251] [2024-10-11 21:16:30,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:30,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 21:16:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 21:16:30,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:30,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572310251] [2024-10-11 21:16:30,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572310251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:30,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 21:16:30,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859356944] [2024-10-11 21:16:30,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:30,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:16:30,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:30,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:16:30,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-11 21:16:30,186 INFO L87 Difference]: Start difference. First operand 54 states and 61 transitions. Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:16:30,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:30,321 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2024-10-11 21:16:30,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:16:30,321 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2024-10-11 21:16:30,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:30,324 INFO L225 Difference]: With dead ends: 64 [2024-10-11 21:16:30,324 INFO L226 Difference]: Without dead ends: 60 [2024-10-11 21:16:30,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-10-11 21:16:30,325 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:30,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 188 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:30,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-11 21:16:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-11 21:16:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 38 states have (on average 1.236842105263158) internal successors, (47), 44 states have internal predecessors, (47), 10 states have call successors, (10), 7 states have call predecessors, (10), 6 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-10-11 21:16:30,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2024-10-11 21:16:30,337 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 68 transitions. Word has length 24 [2024-10-11 21:16:30,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:30,339 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 68 transitions. [2024-10-11 21:16:30,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-11 21:16:30,340 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2024-10-11 21:16:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-11 21:16:30,341 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:30,341 INFO L215 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] [2024-10-11 21:16:30,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 21:16:30,341 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:30,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:30,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1315383449, now seen corresponding path program 1 times [2024-10-11 21:16:30,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:30,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904155074] [2024-10-11 21:16:30,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:30,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:30,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:16:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 21:16:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,511 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-11 21:16:30,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:30,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904155074] [2024-10-11 21:16:30,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904155074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:30,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:30,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 21:16:30,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334202324] [2024-10-11 21:16:30,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:30,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 21:16:30,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:30,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 21:16:30,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:16:30,513 INFO L87 Difference]: Start difference. First operand 60 states and 68 transitions. Second operand has 8 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:16:30,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:30,678 INFO L93 Difference]: Finished difference Result 70 states and 79 transitions. [2024-10-11 21:16:30,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:16:30,679 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-10-11 21:16:30,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:30,682 INFO L225 Difference]: With dead ends: 70 [2024-10-11 21:16:30,684 INFO L226 Difference]: Without dead ends: 66 [2024-10-11 21:16:30,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2024-10-11 21:16:30,685 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 29 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:30,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 172 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:30,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-11 21:16:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-11 21:16:30,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 48 states have internal predecessors, (52), 11 states have call successors, (11), 8 states have call predecessors, (11), 6 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 21:16:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2024-10-11 21:16:30,702 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 34 [2024-10-11 21:16:30,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:30,703 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2024-10-11 21:16:30,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-11 21:16:30,703 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2024-10-11 21:16:30,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 21:16:30,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:30,704 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:30,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 21:16:30,705 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:30,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:30,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2089760975, now seen corresponding path program 1 times [2024-10-11 21:16:30,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:30,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13123526] [2024-10-11 21:16:30,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:30,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 21:16:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:31,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:31,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-11 21:16:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:31,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:31,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:31,143 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 21:16:31,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13123526] [2024-10-11 21:16:31,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13123526] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:31,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268408718] [2024-10-11 21:16:31,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:31,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:31,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:31,146 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:31,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 21:16:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:31,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 21:16:31,265 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:31,281 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 [2024-10-11 21:16:31,522 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-11 21:16:31,522 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:16:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 22 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-11 21:16:32,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268408718] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:16:32,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:16:32,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 24 [2024-10-11 21:16:32,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784789639] [2024-10-11 21:16:32,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:16:32,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-11 21:16:32,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:32,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-11 21:16:32,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2024-10-11 21:16:32,034 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand has 24 states, 19 states have (on average 2.526315789473684) internal successors, (48), 21 states have internal predecessors, (48), 7 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-10-11 21:16:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:32,320 INFO L93 Difference]: Finished difference Result 131 states and 158 transitions. [2024-10-11 21:16:32,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 21:16:32,320 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 19 states have (on average 2.526315789473684) internal successors, (48), 21 states have internal predecessors, (48), 7 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 42 [2024-10-11 21:16:32,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:32,322 INFO L225 Difference]: With dead ends: 131 [2024-10-11 21:16:32,322 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 21:16:32,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2024-10-11 21:16:32,323 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 35 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:32,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 294 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:16:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 21:16:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-11 21:16:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.2) internal successors, (54), 50 states have internal predecessors, (54), 11 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (14), 11 states have call predecessors, (14), 9 states have call successors, (14) [2024-10-11 21:16:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-10-11 21:16:32,333 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 42 [2024-10-11 21:16:32,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:32,333 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-10-11 21:16:32,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 19 states have (on average 2.526315789473684) internal successors, (48), 21 states have internal predecessors, (48), 7 states have call successors, (14), 5 states have call predecessors, (14), 6 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2024-10-11 21:16:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-10-11 21:16:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 21:16:32,335 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:32,335 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:32,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 21:16:32,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:32,537 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:32,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:32,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1846289539, now seen corresponding path program 2 times [2024-10-11 21:16:32,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:32,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067357821] [2024-10-11 21:16:32,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:32,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 21:16:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 21:16:32,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:32,925 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-10-11 21:16:32,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:32,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067357821] [2024-10-11 21:16:32,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067357821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:32,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720644047] [2024-10-11 21:16:32,927 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:16:32,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:32,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:32,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:32,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 21:16:33,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:16:33,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:16:33,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-10-11 21:16:33,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:33,075 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 [2024-10-11 21:16:33,521 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-10-11 21:16:33,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:16:35,057 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 3 proven. 124 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-11 21:16:35,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720644047] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:16:35,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:16:35,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 21] total 38 [2024-10-11 21:16:35,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124422006] [2024-10-11 21:16:35,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:16:35,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-10-11 21:16:35,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-10-11 21:16:35,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1187, Unknown=0, NotChecked=0, Total=1406 [2024-10-11 21:16:35,064 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-10-11 21:16:35,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:35,784 INFO L93 Difference]: Finished difference Result 139 states and 171 transitions. [2024-10-11 21:16:35,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-11 21:16:35,784 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 70 [2024-10-11 21:16:35,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:35,785 INFO L225 Difference]: With dead ends: 139 [2024-10-11 21:16:35,786 INFO L226 Difference]: Without dead ends: 74 [2024-10-11 21:16:35,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=373, Invalid=2279, Unknown=0, NotChecked=0, Total=2652 [2024-10-11 21:16:35,788 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 35 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:35,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 495 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 21:16:35,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-10-11 21:16:35,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2024-10-11 21:16:35,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 46 states have (on average 1.173913043478261) internal successors, (54), 50 states have internal predecessors, (54), 11 states have call successors, (11), 8 states have call predecessors, (11), 9 states have return successors, (15), 12 states have call predecessors, (15), 9 states have call successors, (15) [2024-10-11 21:16:35,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-10-11 21:16:35,803 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 70 [2024-10-11 21:16:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:35,803 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-10-11 21:16:35,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 31 states have (on average 2.096774193548387) internal successors, (65), 31 states have internal predecessors, (65), 11 states have call successors, (19), 9 states have call predecessors, (19), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-10-11 21:16:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-10-11 21:16:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-10-11 21:16:35,808 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:35,808 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:35,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 21:16:36,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:36,009 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:36,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash 574301062, now seen corresponding path program 1 times [2024-10-11 21:16:36,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:36,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627878343] [2024-10-11 21:16:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:36,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 21:16:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 21:16:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:36,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,163 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-10-11 21:16:36,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:36,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627878343] [2024-10-11 21:16:36,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627878343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:36,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 21:16:36,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 21:16:36,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101834303] [2024-10-11 21:16:36,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:36,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:16:36,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:36,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:16:36,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 21:16:36,165 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:16:36,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:36,229 INFO L93 Difference]: Finished difference Result 71 states and 80 transitions. [2024-10-11 21:16:36,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 21:16:36,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 85 [2024-10-11 21:16:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:36,231 INFO L225 Difference]: With dead ends: 71 [2024-10-11 21:16:36,231 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 21:16:36,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 21:16:36,232 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 16 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:36,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 146 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:16:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 21:16:36,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2024-10-11 21:16:36,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 46 states have internal predecessors, (50), 10 states have call successors, (10), 8 states have call predecessors, (10), 9 states have return successors, (14), 11 states have call predecessors, (14), 8 states have call successors, (14) [2024-10-11 21:16:36,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2024-10-11 21:16:36,239 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 85 [2024-10-11 21:16:36,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:36,239 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2024-10-11 21:16:36,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 21:16:36,239 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2024-10-11 21:16:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-10-11 21:16:36,241 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:36,241 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:36,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 21:16:36,241 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:36,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:36,242 INFO L85 PathProgramCache]: Analyzing trace with hash -945437592, now seen corresponding path program 1 times [2024-10-11 21:16:36,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:36,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297945597] [2024-10-11 21:16:36,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:36,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:16:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:36,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 21:16:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-11 21:16:37,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 21:16:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 17 proven. 156 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-10-11 21:16:37,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:37,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297945597] [2024-10-11 21:16:37,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297945597] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:37,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785032658] [2024-10-11 21:16:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:37,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:37,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:37,685 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:37,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 21:16:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:37,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-10-11 21:16:37,855 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:37,859 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 [2024-10-11 21:16:38,259 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 158 proven. 24 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-11 21:16:38,259 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:16:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 5 proven. 215 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-11 21:16:40,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785032658] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:16:40,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:16:40,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 26] total 46 [2024-10-11 21:16:40,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577818552] [2024-10-11 21:16:40,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:16:40,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-11 21:16:40,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:40,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-11 21:16:40,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=1709, Unknown=0, NotChecked=0, Total=2070 [2024-10-11 21:16:40,860 INFO L87 Difference]: Start difference. First operand 66 states and 74 transitions. Second operand has 46 states, 36 states have (on average 2.388888888888889) internal successors, (86), 39 states have internal predecessors, (86), 12 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) [2024-10-11 21:16:41,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:41,326 INFO L93 Difference]: Finished difference Result 131 states and 154 transitions. [2024-10-11 21:16:41,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 21:16:41,327 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 36 states have (on average 2.388888888888889) internal successors, (86), 39 states have internal predecessors, (86), 12 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) Word has length 107 [2024-10-11 21:16:41,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:41,328 INFO L225 Difference]: With dead ends: 131 [2024-10-11 21:16:41,328 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 21:16:41,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1124 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=567, Invalid=2513, Unknown=0, NotChecked=0, Total=3080 [2024-10-11 21:16:41,330 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 54 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:41,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 474 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 21:16:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 21:16:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-11 21:16:41,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 10 states have call successors, (10), 8 states have call predecessors, (10), 11 states have return successors, (16), 13 states have call predecessors, (16), 8 states have call successors, (16) [2024-10-11 21:16:41,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2024-10-11 21:16:41,337 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 107 [2024-10-11 21:16:41,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:41,338 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2024-10-11 21:16:41,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 36 states have (on average 2.388888888888889) internal successors, (86), 39 states have internal predecessors, (86), 12 states have call successors, (28), 9 states have call predecessors, (28), 13 states have return successors, (26), 11 states have call predecessors, (26), 12 states have call successors, (26) [2024-10-11 21:16:41,338 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2024-10-11 21:16:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-11 21:16:41,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:41,340 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:41,358 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 21:16:41,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 21:16:41,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:41,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash -58865100, now seen corresponding path program 2 times [2024-10-11 21:16:41,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:41,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358528328] [2024-10-11 21:16:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:41,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:16:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:42,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 21:16:42,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:42,249 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-10-11 21:16:42,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:42,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358528328] [2024-10-11 21:16:42,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358528328] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:42,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104910190] [2024-10-11 21:16:42,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:16:42,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:42,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:42,252 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:42,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 21:16:42,442 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:16:42,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:16:42,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-11 21:16:42,449 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:42,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 21:16:42,697 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 [2024-10-11 21:16:42,717 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-10-11 21:16:42,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:16:42,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104910190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:42,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:16:42,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2024-10-11 21:16:42,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455092064] [2024-10-11 21:16:42,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:42,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 21:16:42,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 21:16:42,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-10-11 21:16:42,720 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 21:16:42,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:42,843 INFO L93 Difference]: Finished difference Result 73 states and 86 transitions. [2024-10-11 21:16:42,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 21:16:42,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 135 [2024-10-11 21:16:42,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:42,845 INFO L225 Difference]: With dead ends: 73 [2024-10-11 21:16:42,845 INFO L226 Difference]: Without dead ends: 72 [2024-10-11 21:16:42,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-10-11 21:16:42,846 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 32 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:42,847 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 120 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:16:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-11 21:16:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2024-10-11 21:16:42,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 47 states have internal predecessors, (51), 10 states have call successors, (10), 8 states have call predecessors, (10), 11 states have return successors, (16), 13 states have call predecessors, (16), 8 states have call successors, (16) [2024-10-11 21:16:42,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2024-10-11 21:16:42,858 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 135 [2024-10-11 21:16:42,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:42,859 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2024-10-11 21:16:42,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 21:16:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2024-10-11 21:16:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-10-11 21:16:42,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:42,860 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:42,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 21:16:43,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 21:16:43,062 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_23_to_24_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1824818046, now seen corresponding path program 1 times [2024-10-11 21:16:43,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:43,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569037811] [2024-10-11 21:16:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 21:16:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-11 21:16:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:43,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:43,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2024-10-11 21:16:43,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569037811] [2024-10-11 21:16:43,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569037811] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:43,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97749155] [2024-10-11 21:16:43,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:43,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:43,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:43,743 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:43,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 21:16:43,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:43,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:16:43,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:44,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 21:16:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-10-11 21:16:44,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:16:44,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97749155] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:16:44,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:16:44,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-10-11 21:16:44,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746866982] [2024-10-11 21:16:44,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:16:44,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:16:44,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:44,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:16:44,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-10-11 21:16:44,193 INFO L87 Difference]: Start difference. First operand 69 states and 77 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 21:16:44,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:44,278 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2024-10-11 21:16:44,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:16:44,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 136 [2024-10-11 21:16:44,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:44,282 INFO L225 Difference]: With dead ends: 69 [2024-10-11 21:16:44,282 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 21:16:44,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:16:44,283 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 6 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:44,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 118 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 21:16:44,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 21:16:44,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2024-10-11 21:16:44,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.119047619047619) internal successors, (47), 43 states have internal predecessors, (47), 9 states have call successors, (9), 8 states have call predecessors, (9), 11 states have return successors, (15), 12 states have call predecessors, (15), 7 states have call successors, (15) [2024-10-11 21:16:44,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2024-10-11 21:16:44,298 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 136 [2024-10-11 21:16:44,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:44,298 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2024-10-11 21:16:44,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 21:16:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2024-10-11 21:16:44,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-11 21:16:44,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:44,300 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:44,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 21:16:44,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 21:16:44,501 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:44,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:44,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1291326043, now seen corresponding path program 1 times [2024-10-11 21:16:44,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:44,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336033477] [2024-10-11 21:16:44,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:44,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:44,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:45,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 21:16:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-10-11 21:16:45,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-11 21:16:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 5 proven. 29 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2024-10-11 21:16:45,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336033477] [2024-10-11 21:16:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336033477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:45,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147656766] [2024-10-11 21:16:45,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:45,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:45,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:45,480 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:45,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 21:16:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:45,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 21:16:45,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:45,746 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 [2024-10-11 21:16:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 349 proven. 3 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2024-10-11 21:16:45,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:16:46,609 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 3 proven. 25 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2024-10-11 21:16:46,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1147656766] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:16:46,610 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:16:46,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 11] total 31 [2024-10-11 21:16:46,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474881503] [2024-10-11 21:16:46,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:16:46,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-11 21:16:46,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:46,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-11 21:16:46,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=809, Unknown=0, NotChecked=0, Total=930 [2024-10-11 21:16:46,613 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand has 31 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 11 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (23), 8 states have call predecessors, (23), 11 states have call successors, (23) [2024-10-11 21:16:47,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:47,247 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2024-10-11 21:16:47,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 21:16:47,249 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 11 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (23), 8 states have call predecessors, (23), 11 states have call successors, (23) Word has length 158 [2024-10-11 21:16:47,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:47,250 INFO L225 Difference]: With dead ends: 127 [2024-10-11 21:16:47,250 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 21:16:47,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=255, Invalid=1551, Unknown=0, NotChecked=0, Total=1806 [2024-10-11 21:16:47,251 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 91 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:47,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 154 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:16:47,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 21:16:47,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-11 21:16:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 44 states have (on average 1.1136363636363635) internal successors, (49), 45 states have internal predecessors, (49), 9 states have call successors, (9), 8 states have call predecessors, (9), 13 states have return successors, (17), 14 states have call predecessors, (17), 7 states have call successors, (17) [2024-10-11 21:16:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2024-10-11 21:16:47,267 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 158 [2024-10-11 21:16:47,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:47,268 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2024-10-11 21:16:47,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 24 states have internal predecessors, (82), 11 states have call successors, (31), 8 states have call predecessors, (31), 8 states have return successors, (23), 8 states have call predecessors, (23), 11 states have call successors, (23) [2024-10-11 21:16:47,268 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2024-10-11 21:16:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-10-11 21:16:47,276 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:47,277 INFO L215 NwaCegarLoop]: trace histogram [56, 56, 48, 48, 48, 48, 48, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:47,294 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 21:16:47,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:47,481 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:47,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash 245016123, now seen corresponding path program 2 times [2024-10-11 21:16:47,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192192122] [2024-10-11 21:16:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:49,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:49,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 21:16:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 21:16:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2024-10-11 21:16:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 21:16:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:50,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-10-11 21:16:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 10043 backedges. 7 proven. 170 refuted. 0 times theorem prover too weak. 9866 trivial. 0 not checked. [2024-10-11 21:16:50,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:50,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192192122] [2024-10-11 21:16:50,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192192122] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:50,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831430206] [2024-10-11 21:16:50,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 21:16:50,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:50,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:50,918 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:50,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 21:16:51,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 21:16:51,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:16:51,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 2058 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-11 21:16:51,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:51,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-11 21:16:51,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10043 backedges. 3832 proven. 8 refuted. 0 times theorem prover too weak. 6203 trivial. 0 not checked. [2024-10-11 21:16:51,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:16:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 10043 backedges. 7 proven. 206 refuted. 0 times theorem prover too weak. 9830 trivial. 0 not checked. [2024-10-11 21:16:53,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831430206] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 21:16:53,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 21:16:53,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 16] total 36 [2024-10-11 21:16:53,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024205571] [2024-10-11 21:16:53,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 21:16:53,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-10-11 21:16:53,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:16:53,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-10-11 21:16:53,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=1065, Unknown=0, NotChecked=0, Total=1260 [2024-10-11 21:16:53,620 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand has 36 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 14 states have call successors, (37), 10 states have call predecessors, (37), 8 states have return successors, (27), 9 states have call predecessors, (27), 13 states have call successors, (27) [2024-10-11 21:16:54,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:16:54,023 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2024-10-11 21:16:54,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 21:16:54,023 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 14 states have call successors, (37), 10 states have call predecessors, (37), 8 states have return successors, (27), 9 states have call predecessors, (27), 13 states have call successors, (27) Word has length 514 [2024-10-11 21:16:54,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:16:54,025 INFO L225 Difference]: With dead ends: 133 [2024-10-11 21:16:54,025 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 21:16:54,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1197 GetRequests, 1151 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=1664, Unknown=0, NotChecked=0, Total=1980 [2024-10-11 21:16:54,026 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 85 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 21:16:54,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 218 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 21:16:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 21:16:54,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-11 21:16:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 46 states have internal predecessors, (50), 9 states have call successors, (9), 8 states have call predecessors, (9), 14 states have return successors, (18), 15 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-11 21:16:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2024-10-11 21:16:54,036 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 514 [2024-10-11 21:16:54,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:16:54,037 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2024-10-11 21:16:54,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 28 states have (on average 3.1785714285714284) internal successors, (89), 28 states have internal predecessors, (89), 14 states have call successors, (37), 10 states have call predecessors, (37), 8 states have return successors, (27), 9 states have call predecessors, (27), 13 states have call successors, (27) [2024-10-11 21:16:54,037 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2024-10-11 21:16:54,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-10-11 21:16:54,053 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:16:54,054 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 72, 72, 72, 72, 72, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 21:16:54,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-11 21:16:54,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 21:16:54,259 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:16:54,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:16:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1632864901, now seen corresponding path program 3 times [2024-10-11 21:16:54,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:16:54,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432249307] [2024-10-11 21:16:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:16:54,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:16:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:55,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:55,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:16:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:55,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:16:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-11 21:16:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:16:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:16:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:16:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:16:56,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:16:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:16:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 22517 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 22512 trivial. 0 not checked. [2024-10-11 21:16:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:16:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432249307] [2024-10-11 21:16:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432249307] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:16:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715614414] [2024-10-11 21:16:56,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 21:16:56,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:16:56,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:16:56,628 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:16:56,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 21:16:57,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-11 21:16:57,091 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 21:16:57,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-11 21:16:57,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:16:57,124 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 [2024-10-11 21:16:57,787 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 [2024-10-11 21:16:58,365 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 [2024-10-11 21:16:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 22517 backedges. 0 proven. 11441 refuted. 0 times theorem prover too weak. 11076 trivial. 0 not checked. [2024-10-11 21:16:58,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 21:17:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 22517 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 22512 trivial. 0 not checked. [2024-10-11 21:17:00,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715614414] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 21:17:00,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 21:17:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11, 9] total 21 [2024-10-11 21:17:00,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002771600] [2024-10-11 21:17:00,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:17:00,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 21:17:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:17:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 21:17:00,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2024-10-11 21:17:00,089 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand has 9 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 21:17:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:17:00,250 INFO L93 Difference]: Finished difference Result 71 states and 78 transitions. [2024-10-11 21:17:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 21:17:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 734 [2024-10-11 21:17:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:17:00,253 INFO L225 Difference]: With dead ends: 71 [2024-10-11 21:17:00,253 INFO L226 Difference]: Without dead ends: 70 [2024-10-11 21:17:00,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1692 GetRequests, 1664 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=640, Unknown=0, NotChecked=0, Total=756 [2024-10-11 21:17:00,254 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 15 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 21:17:00,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 237 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 21:17:00,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-11 21:17:00,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2024-10-11 21:17:00,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 9 states have call successors, (9), 8 states have call predecessors, (9), 14 states have return successors, (18), 15 states have call predecessors, (18), 7 states have call successors, (18) [2024-10-11 21:17:00,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2024-10-11 21:17:00,264 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 734 [2024-10-11 21:17:00,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:17:00,265 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2024-10-11 21:17:00,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 4 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-11 21:17:00,265 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2024-10-11 21:17:00,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 736 [2024-10-11 21:17:00,269 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 21:17:00,269 INFO L215 NwaCegarLoop]: trace histogram [84, 84, 72, 72, 72, 72, 72, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-11 21:17:00,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 21:17:00,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 21:17:00,474 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_22_to_23_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-10-11 21:17:00,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 21:17:00,474 INFO L85 PathProgramCache]: Analyzing trace with hash 920795690, now seen corresponding path program 1 times [2024-10-11 21:17:00,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 21:17:00,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413512585] [2024-10-11 21:17:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:17:00,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 21:17:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:01,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:01,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:01,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:17:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:17:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-11 21:17:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:17:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 21:17:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 21:17:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 21:17:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-11 21:17:02,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:02,691 INFO L134 CoverageAnalysis]: Checked inductivity of 22518 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 22512 trivial. 0 not checked. [2024-10-11 21:17:02,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 21:17:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413512585] [2024-10-11 21:17:02,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413512585] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 21:17:02,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793607502] [2024-10-11 21:17:02,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 21:17:02,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 21:17:02,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 21:17:02,694 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 21:17:02,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 21:17:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 21:17:03,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 2819 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 21:17:03,351 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 21:17:04,012 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 [2024-10-11 21:17:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 22518 backedges. 11441 proven. 0 refuted. 0 times theorem prover too weak. 11077 trivial. 0 not checked. [2024-10-11 21:17:04,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 21:17:04,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793607502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 21:17:04,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 21:17:04,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2024-10-11 21:17:04,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752731501] [2024-10-11 21:17:04,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 21:17:04,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 21:17:04,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 21:17:04,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 21:17:04,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-10-11 21:17:04,036 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-11 21:17:05,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 21:17:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 21:17:05,230 INFO L93 Difference]: Finished difference Result 69 states and 76 transitions. [2024-10-11 21:17:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 21:17:05,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 735 [2024-10-11 21:17:05,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 21:17:05,233 INFO L225 Difference]: With dead ends: 69 [2024-10-11 21:17:05,233 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 21:17:05,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 939 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-10-11 21:17:05,234 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 21:17:05,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 109 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 21:17:05,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 21:17:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 21:17:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 21:17:05,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 21:17:05,235 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 735 [2024-10-11 21:17:05,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 21:17:05,235 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 21:17:05,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 states have internal predecessors, (51), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-11 21:17:05,236 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 21:17:05,236 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 21:17:05,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-10-11 21:17:05,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_24_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-10-11 21:17:05,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-10-11 21:17:05,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_23_to_24_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-10-11 21:17:05,239 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_22_to_23_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-10-11 21:17:05,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_22_to_23_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-10-11 21:17:05,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_25_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-10-11 21:17:05,240 INFO L782 garLoopResultBuilder]: Registering result SAFE for location func_to_recursive_line_25_to_25_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-10-11 21:17:05,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 21:17:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 21:17:05,443 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 21:17:05,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 21:17:21,776 WARN L286 SmtUtils]: Spent 16.15s on a formula simplification. DAG size of input: 90 DAG size of output: 35 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-10-11 21:17:30,002 WARN L286 SmtUtils]: Spent 8.09s on a formula simplification. DAG size of input: 64 DAG size of output: 49 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)