./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 04:59:28,960 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 04:59:29,017 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 04:59:29,021 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 04:59:29,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 04:59:29,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 04:59:29,049 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 04:59:29,049 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 04:59:29,050 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 04:59:29,051 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 04:59:29,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 04:59:29,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 04:59:29,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 04:59:29,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 04:59:29,056 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 04:59:29,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 04:59:29,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 04:59:29,057 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 04:59:29,057 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 04:59:29,057 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 04:59:29,058 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 04:59:29,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 04:59:29,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 04:59:29,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 04:59:29,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 04:59:29,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 04:59:29,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 04:59:29,060 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 04:59:29,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 04:59:29,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 04:59:29,060 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 04:59:29,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 04:59:29,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 04:59:29,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 04:59:29,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:59:29,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 04:59:29,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 04:59:29,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 04:59:29,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 04:59:29,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 04:59:29,063 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 04:59:29,063 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 04:59:29,063 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 04:59:29,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 04:59:29,063 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a [2024-11-17 04:59:29,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 04:59:29,274 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 04:59:29,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 04:59:29,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 04:59:29,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 04:59:29,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2024-11-17 04:59:30,856 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 04:59:31,002 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 04:59:31,003 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2024-11-17 04:59:31,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98eef03a6/6430582d69604cf886301d45377b1b46/FLAG7c28deaeb [2024-11-17 04:59:31,024 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98eef03a6/6430582d69604cf886301d45377b1b46 [2024-11-17 04:59:31,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 04:59:31,029 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 04:59:31,031 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 04:59:31,031 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 04:59:31,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 04:59:31,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63a48ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31, skipping insertion in model container [2024-11-17 04:59:31,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,054 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 04:59:31,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:59:31,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 04:59:31,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 04:59:31,284 INFO L204 MainTranslator]: Completed translation [2024-11-17 04:59:31,284 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31 WrapperNode [2024-11-17 04:59:31,285 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 04:59:31,285 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 04:59:31,285 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 04:59:31,286 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 04:59:31,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,307 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,327 INFO L138 Inliner]: procedures = 16, calls = 100, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 196 [2024-11-17 04:59:31,327 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 04:59:31,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 04:59:31,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 04:59:31,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 04:59:31,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,338 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,357 INFO L175 MemorySlicer]: Split 66 memory accesses to 6 slices as follows [2, 12, 5, 11, 15, 21]. 32 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 1, 2, 2, 2]. [2024-11-17 04:59:31,357 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,369 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 04:59:31,384 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 04:59:31,384 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 04:59:31,384 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 04:59:31,385 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (1/1) ... [2024-11-17 04:59:31,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 04:59:31,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:31,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 04:59:31,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 04:59:31,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-17 04:59:31,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 04:59:31,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-17 04:59:31,473 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_29_to_41_0 [2024-11-17 04:59:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_29_to_41_0 [2024-11-17 04:59:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 04:59:31,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 04:59:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 04:59:31,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 04:59:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 04:59:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 04:59:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 04:59:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-17 04:59:31,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 04:59:31,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 04:59:31,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 04:59:31,580 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 04:59:31,581 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 04:59:32,431 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: call ULTIMATE.dealloc(main_~#a~0#1.base, main_~#a~0#1.offset);havoc main_~#a~0#1.base, main_~#a~0#1.offset;call ULTIMATE.dealloc(main_~#n~0#1.base, main_~#n~0#1.offset);havoc main_~#n~0#1.base, main_~#n~0#1.offset;call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset;call ULTIMATE.dealloc(main_~#y~0#1.base, main_~#y~0#1.offset);havoc main_~#y~0#1.base, main_~#y~0#1.offset;call ULTIMATE.dealloc(main_~#z~0#1.base, main_~#z~0#1.offset);havoc main_~#z~0#1.base, main_~#z~0#1.offset; [2024-11-17 04:59:32,470 INFO L? ?]: Removed 357 outVars from TransFormulas that were not future-live. [2024-11-17 04:59:32,470 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 04:59:32,492 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 04:59:32,493 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 04:59:32,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:59:32 BoogieIcfgContainer [2024-11-17 04:59:32,493 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 04:59:32,495 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 04:59:32,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 04:59:32,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 04:59:32,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:59:31" (1/3) ... [2024-11-17 04:59:32,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284e28f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:59:32, skipping insertion in model container [2024-11-17 04:59:32,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:59:31" (2/3) ... [2024-11-17 04:59:32,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284e28f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:59:32, skipping insertion in model container [2024-11-17 04:59:32,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 04:59:32" (3/3) ... [2024-11-17 04:59:32,500 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohencu-ll.c [2024-11-17 04:59:32,514 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 04:59:32,514 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2024-11-17 04:59:32,557 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 04:59:32,561 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;@68b4a0ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 04:59:32,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-11-17 04:59:32,565 INFO L276 IsEmpty]: Start isEmpty. Operand has 346 states, 192 states have (on average 1.734375) internal successors, (333), 331 states have internal predecessors, (333), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-17 04:59:32,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 04:59:32,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:32,570 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 04:59:32,570 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_29_to_41_0Err53ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:32,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:32,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1880030094, now seen corresponding path program 1 times [2024-11-17 04:59:32,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:32,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082509232] [2024-11-17 04:59:32,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:32,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:59:32,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:32,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082509232] [2024-11-17 04:59:32,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082509232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:32,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:32,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:32,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611278793] [2024-11-17 04:59:32,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:32,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:32,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:32,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:32,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:32,911 INFO L87 Difference]: Start difference. First operand has 346 states, 192 states have (on average 1.734375) internal successors, (333), 331 states have internal predecessors, (333), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:59:33,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:33,168 INFO L93 Difference]: Finished difference Result 805 states and 859 transitions. [2024-11-17 04:59:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:33,174 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-17 04:59:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:33,186 INFO L225 Difference]: With dead ends: 805 [2024-11-17 04:59:33,187 INFO L226 Difference]: Without dead ends: 456 [2024-11-17 04:59:33,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:33,198 INFO L432 NwaCegarLoop]: 340 mSDtfsCounter, 223 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:33,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 1675 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:33,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-17 04:59:33,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 408. [2024-11-17 04:59:33,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 250 states have (on average 1.724) internal successors, (431), 388 states have internal predecessors, (431), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-17 04:59:33,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 466 transitions. [2024-11-17 04:59:33,256 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 466 transitions. Word has length 6 [2024-11-17 04:59:33,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:33,256 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 466 transitions. [2024-11-17 04:59:33,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 04:59:33,257 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 466 transitions. [2024-11-17 04:59:33,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 04:59:33,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:33,258 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:33,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 04:59:33,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_29_to_41_0Err49ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:33,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:33,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1821157346, now seen corresponding path program 1 times [2024-11-17 04:59:33,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:33,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650872986] [2024-11-17 04:59:33,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:33,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:33,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:59:33,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:33,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650872986] [2024-11-17 04:59:33,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650872986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:33,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:33,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:33,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811442126] [2024-11-17 04:59:33,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:33,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:33,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:33,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:33,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:33,414 INFO L87 Difference]: Start difference. First operand 408 states and 466 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-17 04:59:33,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:33,580 INFO L93 Difference]: Finished difference Result 456 states and 472 transitions. [2024-11-17 04:59:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:33,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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 16 [2024-11-17 04:59:33,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:33,583 INFO L225 Difference]: With dead ends: 456 [2024-11-17 04:59:33,583 INFO L226 Difference]: Without dead ends: 452 [2024-11-17 04:59:33,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:33,584 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 220 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:33,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1620 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:33,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2024-11-17 04:59:33,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 408. [2024-11-17 04:59:33,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 250 states have (on average 1.708) internal successors, (427), 388 states have internal predecessors, (427), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-17 04:59:33,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 462 transitions. [2024-11-17 04:59:33,601 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 462 transitions. Word has length 16 [2024-11-17 04:59:33,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:33,602 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 462 transitions. [2024-11-17 04:59:33,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 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) [2024-11-17 04:59:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 462 transitions. [2024-11-17 04:59:33,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 04:59:33,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:33,602 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:33,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 04:59:33,604 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_29_to_41_0Err45ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:33,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:33,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1473923165, now seen corresponding path program 1 times [2024-11-17 04:59:33,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:33,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713729964] [2024-11-17 04:59:33,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:33,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:33,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:59:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:33,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713729964] [2024-11-17 04:59:33,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713729964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:33,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:33,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389188497] [2024-11-17 04:59:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:33,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:33,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:33,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:33,804 INFO L87 Difference]: Start difference. First operand 408 states and 462 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-17 04:59:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:34,057 INFO L93 Difference]: Finished difference Result 452 states and 468 transitions. [2024-11-17 04:59:34,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:34,058 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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 22 [2024-11-17 04:59:34,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:34,060 INFO L225 Difference]: With dead ends: 452 [2024-11-17 04:59:34,060 INFO L226 Difference]: Without dead ends: 450 [2024-11-17 04:59:34,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:34,061 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 202 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:34,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1626 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-17 04:59:34,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 408. [2024-11-17 04:59:34,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 250 states have (on average 1.7) internal successors, (425), 388 states have internal predecessors, (425), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-17 04:59:34,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 460 transitions. [2024-11-17 04:59:34,089 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 460 transitions. Word has length 22 [2024-11-17 04:59:34,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:34,090 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 460 transitions. [2024-11-17 04:59:34,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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) [2024-11-17 04:59:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 460 transitions. [2024-11-17 04:59:34,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-17 04:59:34,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:34,090 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:34,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 04:59:34,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_29_to_41_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:34,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:34,091 INFO L85 PathProgramCache]: Analyzing trace with hash -899043525, now seen corresponding path program 1 times [2024-11-17 04:59:34,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:34,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811588073] [2024-11-17 04:59:34,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:34,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:34,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:59:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811588073] [2024-11-17 04:59:34,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811588073] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:34,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:34,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:34,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34358830] [2024-11-17 04:59:34,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:34,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:34,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:34,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:34,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:34,274 INFO L87 Difference]: Start difference. First operand 408 states and 460 transitions. Second operand has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-17 04:59:34,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:34,431 INFO L93 Difference]: Finished difference Result 450 states and 466 transitions. [2024-11-17 04:59:34,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:34,431 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 24 [2024-11-17 04:59:34,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:34,433 INFO L225 Difference]: With dead ends: 450 [2024-11-17 04:59:34,433 INFO L226 Difference]: Without dead ends: 448 [2024-11-17 04:59:34,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:34,436 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 205 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:34,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1695 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:34,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-17 04:59:34,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 408. [2024-11-17 04:59:34,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 250 states have (on average 1.692) internal successors, (423), 388 states have internal predecessors, (423), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-17 04:59:34,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 458 transitions. [2024-11-17 04:59:34,454 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 458 transitions. Word has length 24 [2024-11-17 04:59:34,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:34,454 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 458 transitions. [2024-11-17 04:59:34,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2024-11-17 04:59:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 458 transitions. [2024-11-17 04:59:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-17 04:59:34,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:34,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:34,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 04:59:34,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_29_to_41_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:34,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -2100545422, now seen corresponding path program 1 times [2024-11-17 04:59:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699004878] [2024-11-17 04:59:34,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:34,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:34,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 04:59:34,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:34,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699004878] [2024-11-17 04:59:34,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699004878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:34,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:34,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:34,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317456992] [2024-11-17 04:59:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:34,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:34,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:34,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:34,625 INFO L87 Difference]: Start difference. First operand 408 states and 458 transitions. Second operand has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-17 04:59:34,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:34,756 INFO L93 Difference]: Finished difference Result 448 states and 464 transitions. [2024-11-17 04:59:34,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:34,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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 25 [2024-11-17 04:59:34,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:34,758 INFO L225 Difference]: With dead ends: 448 [2024-11-17 04:59:34,758 INFO L226 Difference]: Without dead ends: 446 [2024-11-17 04:59:34,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:34,759 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 201 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:34,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1699 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:34,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-17 04:59:34,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 408. [2024-11-17 04:59:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 250 states have (on average 1.684) internal successors, (421), 388 states have internal predecessors, (421), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-17 04:59:34,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 456 transitions. [2024-11-17 04:59:34,768 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 456 transitions. Word has length 25 [2024-11-17 04:59:34,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:34,768 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 456 transitions. [2024-11-17 04:59:34,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 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) [2024-11-17 04:59:34,768 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 456 transitions. [2024-11-17 04:59:34,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-17 04:59:34,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:34,769 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:34,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 04:59:34,770 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_29_to_41_0Err39ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:34,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:34,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1022135681, now seen corresponding path program 1 times [2024-11-17 04:59:34,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:34,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123553991] [2024-11-17 04:59:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:34,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299653390] [2024-11-17 04:59:34,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:34,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:34,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:34,792 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:34,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 04:59:34,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:34,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-17 04:59:34,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:34,923 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 [2024-11-17 04:59:35,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 04:59:35,064 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:35,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123553991] [2024-11-17 04:59:35,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299653390] [2024-11-17 04:59:35,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299653390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:35,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:35,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:35,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850467996] [2024-11-17 04:59:35,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:35,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:35,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:35,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:35,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:35,067 INFO L87 Difference]: Start difference. First operand 408 states and 456 transitions. Second operand has 7 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:59:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:35,269 INFO L93 Difference]: Finished difference Result 645 states and 664 transitions. [2024-11-17 04:59:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-17 04:59:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:35,272 INFO L225 Difference]: With dead ends: 645 [2024-11-17 04:59:35,272 INFO L226 Difference]: Without dead ends: 641 [2024-11-17 04:59:35,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:35,274 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 458 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 1649 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:35,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 1649 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-17 04:59:35,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 504. [2024-11-17 04:59:35,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6911764705882353) internal successors, (575), 478 states have internal predecessors, (575), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:35,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 620 transitions. [2024-11-17 04:59:35,291 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 620 transitions. Word has length 34 [2024-11-17 04:59:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:35,292 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 620 transitions. [2024-11-17 04:59:35,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 04:59:35,292 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 620 transitions. [2024-11-17 04:59:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-17 04:59:35,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:35,293 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:35,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 04:59:35,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-17 04:59:35,494 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_29_to_41_0Err35ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:35,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:35,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1243505487, now seen corresponding path program 1 times [2024-11-17 04:59:35,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:35,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819743046] [2024-11-17 04:59:35,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:35,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:35,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899370663] [2024-11-17 04:59:35,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:35,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:35,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:35,527 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:35,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 04:59:35,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:35,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-17 04:59:35,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:35,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 04:59:35,681 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 04:59:35,729 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 [2024-11-17 04:59:36,117 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 [2024-11-17 04:59:36,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 04:59:36,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:59:36,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819743046] [2024-11-17 04:59:36,203 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:36,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899370663] [2024-11-17 04:59:36,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899370663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:59:36,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:59:36,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-17 04:59:36,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243111367] [2024-11-17 04:59:36,204 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 04:59:36,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 04:59:36,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:36,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 04:59:36,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-17 04:59:36,205 INFO L87 Difference]: Start difference. First operand 504 states and 620 transitions. Second operand has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 04:59:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:36,830 INFO L93 Difference]: Finished difference Result 651 states and 670 transitions. [2024-11-17 04:59:36,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 04:59:36,830 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-17 04:59:36,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:36,833 INFO L225 Difference]: With dead ends: 651 [2024-11-17 04:59:36,833 INFO L226 Difference]: Without dead ends: 650 [2024-11-17 04:59:36,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-11-17 04:59:36,834 INFO L432 NwaCegarLoop]: 280 mSDtfsCounter, 765 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 770 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:36,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [770 Valid, 2400 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 04:59:36,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-17 04:59:36,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 504. [2024-11-17 04:59:36,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.688235294117647) internal successors, (574), 478 states have internal predecessors, (574), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:36,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 619 transitions. [2024-11-17 04:59:36,848 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 619 transitions. Word has length 45 [2024-11-17 04:59:36,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:36,848 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 619 transitions. [2024-11-17 04:59:36,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-17 04:59:36,848 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 619 transitions. [2024-11-17 04:59:36,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-17 04:59:36,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:36,850 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:36,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 04:59:37,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-17 04:59:37,051 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_29_to_41_0Err34ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:37,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:37,052 INFO L85 PathProgramCache]: Analyzing trace with hash -106035511, now seen corresponding path program 1 times [2024-11-17 04:59:37,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:37,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679273537] [2024-11-17 04:59:37,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:37,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:37,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [545485664] [2024-11-17 04:59:37,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:37,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:37,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:37,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:37,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 04:59:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:37,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-17 04:59:37,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:37,164 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 [2024-11-17 04:59:37,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 04:59:37,465 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:37,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:37,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:37,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679273537] [2024-11-17 04:59:37,466 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:37,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545485664] [2024-11-17 04:59:37,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545485664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:37,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:37,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:37,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393032825] [2024-11-17 04:59:37,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:37,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:37,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:37,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:37,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:37,468 INFO L87 Difference]: Start difference. First operand 504 states and 619 transitions. Second operand has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:37,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:37,760 INFO L93 Difference]: Finished difference Result 650 states and 669 transitions. [2024-11-17 04:59:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-17 04:59:37,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:37,764 INFO L225 Difference]: With dead ends: 650 [2024-11-17 04:59:37,764 INFO L226 Difference]: Without dead ends: 649 [2024-11-17 04:59:37,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:37,765 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 652 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1355 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:37,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1355 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:59:37,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2024-11-17 04:59:37,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 504. [2024-11-17 04:59:37,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6852941176470588) internal successors, (573), 478 states have internal predecessors, (573), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:37,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 618 transitions. [2024-11-17 04:59:37,779 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 618 transitions. Word has length 46 [2024-11-17 04:59:37,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:37,779 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 618 transitions. [2024-11-17 04:59:37,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:37,779 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 618 transitions. [2024-11-17 04:59:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-17 04:59:37,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:37,782 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:37,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 04:59:37,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:37,985 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_29_to_41_0Err33ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:37,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:37,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1179090791, now seen corresponding path program 1 times [2024-11-17 04:59:37,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:37,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166833006] [2024-11-17 04:59:37,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:37,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:38,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:38,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:38,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166833006] [2024-11-17 04:59:38,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166833006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:38,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:38,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:38,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561472756] [2024-11-17 04:59:38,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:38,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:38,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:38,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:38,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:38,124 INFO L87 Difference]: Start difference. First operand 504 states and 618 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:38,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:38,368 INFO L93 Difference]: Finished difference Result 614 states and 634 transitions. [2024-11-17 04:59:38,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:38,368 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-17 04:59:38,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:38,370 INFO L225 Difference]: With dead ends: 614 [2024-11-17 04:59:38,370 INFO L226 Difference]: Without dead ends: 612 [2024-11-17 04:59:38,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:38,371 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 346 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 1576 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:38,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 1576 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:38,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-17 04:59:38,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 504. [2024-11-17 04:59:38,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6794117647058824) internal successors, (571), 478 states have internal predecessors, (571), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 616 transitions. [2024-11-17 04:59:38,382 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 616 transitions. Word has length 48 [2024-11-17 04:59:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:38,382 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 616 transitions. [2024-11-17 04:59:38,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:38,383 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 616 transitions. [2024-11-17 04:59:38,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-17 04:59:38,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:38,383 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:38,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 04:59:38,383 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_29_to_41_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:38,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:38,384 INFO L85 PathProgramCache]: Analyzing trace with hash -765114363, now seen corresponding path program 1 times [2024-11-17 04:59:38,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:38,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609681046] [2024-11-17 04:59:38,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:38,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:38,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:38,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609681046] [2024-11-17 04:59:38,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609681046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:38,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:38,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:38,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590250522] [2024-11-17 04:59:38,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:38,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:38,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:38,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:38,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:38,530 INFO L87 Difference]: Start difference. First operand 504 states and 616 transitions. Second operand has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:39,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:39,044 INFO L93 Difference]: Finished difference Result 612 states and 632 transitions. [2024-11-17 04:59:39,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:39,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-11-17 04:59:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:39,046 INFO L225 Difference]: With dead ends: 612 [2024-11-17 04:59:39,047 INFO L226 Difference]: Without dead ends: 611 [2024-11-17 04:59:39,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:39,047 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 363 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:39,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1632 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 04:59:39,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-17 04:59:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 504. [2024-11-17 04:59:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6764705882352942) internal successors, (570), 478 states have internal predecessors, (570), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 615 transitions. [2024-11-17 04:59:39,058 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 615 transitions. Word has length 50 [2024-11-17 04:59:39,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:39,058 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 615 transitions. [2024-11-17 04:59:39,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 615 transitions. [2024-11-17 04:59:39,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-17 04:59:39,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:39,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:39,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 04:59:39,059 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_29_to_41_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:39,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2051258570, now seen corresponding path program 1 times [2024-11-17 04:59:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:39,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411326597] [2024-11-17 04:59:39,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:39,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:39,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:39,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:39,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:39,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:39,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411326597] [2024-11-17 04:59:39,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411326597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:39,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:39,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885490071] [2024-11-17 04:59:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:39,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:39,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:39,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:39,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:39,363 INFO L87 Difference]: Start difference. First operand 504 states and 615 transitions. Second operand has 7 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:40,356 INFO L93 Difference]: Finished difference Result 611 states and 631 transitions. [2024-11-17 04:59:40,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:40,356 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2024-11-17 04:59:40,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:40,358 INFO L225 Difference]: With dead ends: 611 [2024-11-17 04:59:40,358 INFO L226 Difference]: Without dead ends: 610 [2024-11-17 04:59:40,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:40,359 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 339 mSDsluCounter, 1548 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:40,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1869 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-17 04:59:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-17 04:59:40,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 504. [2024-11-17 04:59:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.673529411764706) internal successors, (569), 478 states have internal predecessors, (569), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:40,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 614 transitions. [2024-11-17 04:59:40,370 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 614 transitions. Word has length 51 [2024-11-17 04:59:40,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:40,370 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 614 transitions. [2024-11-17 04:59:40,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:40,370 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 614 transitions. [2024-11-17 04:59:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-17 04:59:40,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:40,371 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:40,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 04:59:40,371 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_29_to_41_0Err29ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:40,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:40,371 INFO L85 PathProgramCache]: Analyzing trace with hash -130501624, now seen corresponding path program 1 times [2024-11-17 04:59:40,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:40,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64091477] [2024-11-17 04:59:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:40,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:40,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:40,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:40,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:40,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:40,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:40,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:40,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64091477] [2024-11-17 04:59:40,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64091477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:40,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:40,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:40,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506795550] [2024-11-17 04:59:40,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:40,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:40,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:40,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:40,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:40,539 INFO L87 Difference]: Start difference. First operand 504 states and 614 transitions. Second operand has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:40,691 INFO L93 Difference]: Finished difference Result 624 states and 644 transitions. [2024-11-17 04:59:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:40,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2024-11-17 04:59:40,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:40,694 INFO L225 Difference]: With dead ends: 624 [2024-11-17 04:59:40,694 INFO L226 Difference]: Without dead ends: 622 [2024-11-17 04:59:40,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:40,695 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 345 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:40,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 1568 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:40,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-17 04:59:40,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 504. [2024-11-17 04:59:40,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6676470588235295) internal successors, (567), 478 states have internal predecessors, (567), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:40,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 612 transitions. [2024-11-17 04:59:40,705 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 612 transitions. Word has length 53 [2024-11-17 04:59:40,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:40,705 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 612 transitions. [2024-11-17 04:59:40,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:40,705 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 612 transitions. [2024-11-17 04:59:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-17 04:59:40,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:40,706 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:40,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-17 04:59:40,706 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_29_to_41_0Err27ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:40,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:40,707 INFO L85 PathProgramCache]: Analyzing trace with hash -858007738, now seen corresponding path program 1 times [2024-11-17 04:59:40,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:40,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773690441] [2024-11-17 04:59:40,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:40,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:40,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167314012] [2024-11-17 04:59:40,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:40,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:40,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:40,724 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:40,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 04:59:40,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:40,807 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-17 04:59:40,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:40,818 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 [2024-11-17 04:59:40,827 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 [2024-11-17 04:59:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-17 04:59:41,796 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:59:42,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:42,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773690441] [2024-11-17 04:59:42,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:42,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167314012] [2024-11-17 04:59:42,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167314012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:59:42,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:59:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-17 04:59:42,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168109419] [2024-11-17 04:59:42,154 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 04:59:42,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-17 04:59:42,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:42,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-17 04:59:42,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-17 04:59:42,161 INFO L87 Difference]: Start difference. First operand 504 states and 612 transitions. Second operand has 17 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:59:43,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:43,540 INFO L93 Difference]: Finished difference Result 643 states and 662 transitions. [2024-11-17 04:59:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-17 04:59:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 55 [2024-11-17 04:59:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:43,542 INFO L225 Difference]: With dead ends: 643 [2024-11-17 04:59:43,542 INFO L226 Difference]: Without dead ends: 642 [2024-11-17 04:59:43,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=267, Invalid=1215, Unknown=0, NotChecked=0, Total=1482 [2024-11-17 04:59:43,543 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 646 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:43,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 3850 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 04:59:43,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-11-17 04:59:43,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 504. [2024-11-17 04:59:43,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6647058823529413) internal successors, (566), 478 states have internal predecessors, (566), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:43,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 611 transitions. [2024-11-17 04:59:43,554 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 611 transitions. Word has length 55 [2024-11-17 04:59:43,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:43,554 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 611 transitions. [2024-11-17 04:59:43,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 3.0) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-17 04:59:43,554 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 611 transitions. [2024-11-17 04:59:43,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-17 04:59:43,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:43,555 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:43,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-17 04:59:43,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:43,759 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_29_to_41_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:43,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:43,759 INFO L85 PathProgramCache]: Analyzing trace with hash -828436064, now seen corresponding path program 1 times [2024-11-17 04:59:43,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:43,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543027149] [2024-11-17 04:59:43,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:43,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:44,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:44,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:44,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:44,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:44,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543027149] [2024-11-17 04:59:44,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543027149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:44,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:44,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 04:59:44,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072316134] [2024-11-17 04:59:44,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:44,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 04:59:44,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 04:59:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:44,116 INFO L87 Difference]: Start difference. First operand 504 states and 611 transitions. Second operand has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:45,053 INFO L93 Difference]: Finished difference Result 607 states and 627 transitions. [2024-11-17 04:59:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 04:59:45,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 56 [2024-11-17 04:59:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:45,055 INFO L225 Difference]: With dead ends: 607 [2024-11-17 04:59:45,055 INFO L226 Difference]: Without dead ends: 606 [2024-11-17 04:59:45,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-17 04:59:45,056 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 338 mSDsluCounter, 1767 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:45,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 2078 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 04:59:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-17 04:59:45,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 504. [2024-11-17 04:59:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.661764705882353) internal successors, (565), 478 states have internal predecessors, (565), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 610 transitions. [2024-11-17 04:59:45,066 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 610 transitions. Word has length 56 [2024-11-17 04:59:45,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:45,067 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 610 transitions. [2024-11-17 04:59:45,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 610 transitions. [2024-11-17 04:59:45,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-17 04:59:45,067 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:45,067 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:45,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-17 04:59:45,068 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_29_to_41_0Err25ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:45,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:45,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1558106562, now seen corresponding path program 1 times [2024-11-17 04:59:45,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:45,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669766311] [2024-11-17 04:59:45,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:45,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:45,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:45,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669766311] [2024-11-17 04:59:45,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669766311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:45,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:45,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:45,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486934931] [2024-11-17 04:59:45,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:45,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:45,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:45,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:45,200 INFO L87 Difference]: Start difference. First operand 504 states and 610 transitions. Second operand has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:45,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:45,341 INFO L93 Difference]: Finished difference Result 634 states and 654 transitions. [2024-11-17 04:59:45,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:45,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 58 [2024-11-17 04:59:45,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:45,343 INFO L225 Difference]: With dead ends: 634 [2024-11-17 04:59:45,343 INFO L226 Difference]: Without dead ends: 632 [2024-11-17 04:59:45,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:45,343 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 344 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:45,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1561 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:45,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2024-11-17 04:59:45,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 504. [2024-11-17 04:59:45,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6558823529411764) internal successors, (563), 478 states have internal predecessors, (563), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:45,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 608 transitions. [2024-11-17 04:59:45,354 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 608 transitions. Word has length 58 [2024-11-17 04:59:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:45,354 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 608 transitions. [2024-11-17 04:59:45,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 608 transitions. [2024-11-17 04:59:45,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-17 04:59:45,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:45,355 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:45,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-17 04:59:45,355 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_29_to_41_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:45,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:45,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1603181276, now seen corresponding path program 1 times [2024-11-17 04:59:45,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:45,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247962778] [2024-11-17 04:59:45,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:45,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:45,692 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:45,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:45,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247962778] [2024-11-17 04:59:45,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247962778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:45,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:45,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 04:59:45,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863308021] [2024-11-17 04:59:45,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:45,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 04:59:45,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:45,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 04:59:45,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:45,694 INFO L87 Difference]: Start difference. First operand 504 states and 608 transitions. Second operand has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:46,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:46,315 INFO L93 Difference]: Finished difference Result 604 states and 624 transitions. [2024-11-17 04:59:46,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 04:59:46,315 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 60 [2024-11-17 04:59:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:46,317 INFO L225 Difference]: With dead ends: 604 [2024-11-17 04:59:46,317 INFO L226 Difference]: Without dead ends: 603 [2024-11-17 04:59:46,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-17 04:59:46,318 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 348 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:46,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 2034 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 04:59:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-17 04:59:46,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 504. [2024-11-17 04:59:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6529411764705881) internal successors, (562), 478 states have internal predecessors, (562), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 607 transitions. [2024-11-17 04:59:46,329 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 607 transitions. Word has length 60 [2024-11-17 04:59:46,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:46,329 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 607 transitions. [2024-11-17 04:59:46,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.714285714285714) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:46,329 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 607 transitions. [2024-11-17 04:59:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-17 04:59:46,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:46,330 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:46,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-17 04:59:46,330 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_29_to_41_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:46,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1840987967, now seen corresponding path program 1 times [2024-11-17 04:59:46,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:46,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537066720] [2024-11-17 04:59:46,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:46,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:46,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:46,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:46,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:46,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:46,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:46,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537066720] [2024-11-17 04:59:46,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537066720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:46,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:46,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 04:59:46,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289421589] [2024-11-17 04:59:46,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:46,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 04:59:46,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:46,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 04:59:46,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:46,824 INFO L87 Difference]: Start difference. First operand 504 states and 607 transitions. Second operand has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:48,092 INFO L93 Difference]: Finished difference Result 603 states and 623 transitions. [2024-11-17 04:59:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 04:59:48,093 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 61 [2024-11-17 04:59:48,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:48,095 INFO L225 Difference]: With dead ends: 603 [2024-11-17 04:59:48,095 INFO L226 Difference]: Without dead ends: 601 [2024-11-17 04:59:48,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-17 04:59:48,095 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 327 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:48,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 2252 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-17 04:59:48,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2024-11-17 04:59:48,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 504. [2024-11-17 04:59:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6470588235294117) internal successors, (560), 478 states have internal predecessors, (560), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:48,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 605 transitions. [2024-11-17 04:59:48,106 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 605 transitions. Word has length 61 [2024-11-17 04:59:48,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:48,106 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 605 transitions. [2024-11-17 04:59:48,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.857142857142857) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 605 transitions. [2024-11-17 04:59:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-17 04:59:48,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:48,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:48,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 04:59:48,107 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_29_to_41_0Err21ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:48,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1236052102, now seen corresponding path program 1 times [2024-11-17 04:59:48,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624582687] [2024-11-17 04:59:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:48,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:48,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:48,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:48,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:48,243 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-17 04:59:48,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:48,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624582687] [2024-11-17 04:59:48,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624582687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:48,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:48,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:48,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364783654] [2024-11-17 04:59:48,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:48,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:48,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:48,245 INFO L87 Difference]: Start difference. First operand 504 states and 605 transitions. Second operand has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:48,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:48,432 INFO L93 Difference]: Finished difference Result 629 states and 649 transitions. [2024-11-17 04:59:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:48,432 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 62 [2024-11-17 04:59:48,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:48,434 INFO L225 Difference]: With dead ends: 629 [2024-11-17 04:59:48,434 INFO L226 Difference]: Without dead ends: 628 [2024-11-17 04:59:48,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:48,435 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 339 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1614 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:48,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1614 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:48,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2024-11-17 04:59:48,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 504. [2024-11-17 04:59:48,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6441176470588235) internal successors, (559), 478 states have internal predecessors, (559), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:48,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 604 transitions. [2024-11-17 04:59:48,445 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 604 transitions. Word has length 62 [2024-11-17 04:59:48,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:48,445 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 604 transitions. [2024-11-17 04:59:48,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-17 04:59:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 604 transitions. [2024-11-17 04:59:48,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-17 04:59:48,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:48,446 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:48,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 04:59:48,446 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_29_to_41_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:48,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:48,446 INFO L85 PathProgramCache]: Analyzing trace with hash -424175864, now seen corresponding path program 1 times [2024-11-17 04:59:48,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:48,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215505857] [2024-11-17 04:59:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:48,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:48,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [935857451] [2024-11-17 04:59:48,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:48,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:48,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:48,462 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:48,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 04:59:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:48,561 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-17 04:59:48,563 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:48,569 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 [2024-11-17 04:59:48,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-17 04:59:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-17 04:59:48,738 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:59:48,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215505857] [2024-11-17 04:59:48,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935857451] [2024-11-17 04:59:48,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935857451] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:59:48,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 04:59:48,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-17 04:59:48,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181168934] [2024-11-17 04:59:48,819 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 04:59:48,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 04:59:48,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:48,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 04:59:48,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-17 04:59:48,823 INFO L87 Difference]: Start difference. First operand 504 states and 604 transitions. Second operand has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-17 04:59:49,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:49,129 INFO L93 Difference]: Finished difference Result 640 states and 659 transitions. [2024-11-17 04:59:49,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 04:59:49,129 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 70 [2024-11-17 04:59:49,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:49,132 INFO L225 Difference]: With dead ends: 640 [2024-11-17 04:59:49,132 INFO L226 Difference]: Without dead ends: 639 [2024-11-17 04:59:49,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-17 04:59:49,133 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 529 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:49,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 2262 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:59:49,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-11-17 04:59:49,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 504. [2024-11-17 04:59:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6411764705882352) internal successors, (558), 478 states have internal predecessors, (558), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:49,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 603 transitions. [2024-11-17 04:59:49,147 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 603 transitions. Word has length 70 [2024-11-17 04:59:49,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:49,147 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 603 transitions. [2024-11-17 04:59:49,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-17 04:59:49,148 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 603 transitions. [2024-11-17 04:59:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 04:59:49,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:49,148 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:49,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 04:59:49,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:49,353 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_29_to_41_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:49,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash -264549877, now seen corresponding path program 1 times [2024-11-17 04:59:49,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:49,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854704025] [2024-11-17 04:59:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:49,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:49,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454591551] [2024-11-17 04:59:49,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:49,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:49,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:49,373 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:49,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 04:59:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:49,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 04:59:49,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:49,477 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 [2024-11-17 04:59:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:49,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:49,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:49,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854704025] [2024-11-17 04:59:49,613 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:49,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454591551] [2024-11-17 04:59:49,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454591551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:49,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:49,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:49,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631803273] [2024-11-17 04:59:49,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:49,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:49,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:49,615 INFO L87 Difference]: Start difference. First operand 504 states and 603 transitions. Second operand has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:49,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:49,803 INFO L93 Difference]: Finished difference Result 639 states and 658 transitions. [2024-11-17 04:59:49,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:49,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 71 [2024-11-17 04:59:49,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:49,805 INFO L225 Difference]: With dead ends: 639 [2024-11-17 04:59:49,805 INFO L226 Difference]: Without dead ends: 638 [2024-11-17 04:59:49,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 58 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:49,806 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 348 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1731 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:49,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1731 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-11-17 04:59:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 504. [2024-11-17 04:59:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.638235294117647) internal successors, (557), 478 states have internal predecessors, (557), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:49,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 602 transitions. [2024-11-17 04:59:49,817 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 602 transitions. Word has length 71 [2024-11-17 04:59:49,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:49,817 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 602 transitions. [2024-11-17 04:59:49,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.6) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:49,817 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 602 transitions. [2024-11-17 04:59:49,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-17 04:59:49,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:49,818 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:49,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 04:59:50,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:50,022 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_29_to_41_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:50,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:50,022 INFO L85 PathProgramCache]: Analyzing trace with hash -829360759, now seen corresponding path program 1 times [2024-11-17 04:59:50,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:50,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520691564] [2024-11-17 04:59:50,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:50,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:50,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:50,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520691564] [2024-11-17 04:59:50,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520691564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:50,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:50,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:50,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205530771] [2024-11-17 04:59:50,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:50,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:50,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:50,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:50,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:50,219 INFO L87 Difference]: Start difference. First operand 504 states and 602 transitions. Second operand has 6 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:50,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:50,402 INFO L93 Difference]: Finished difference Result 612 states and 632 transitions. [2024-11-17 04:59:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 73 [2024-11-17 04:59:50,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:50,404 INFO L225 Difference]: With dead ends: 612 [2024-11-17 04:59:50,404 INFO L226 Difference]: Without dead ends: 610 [2024-11-17 04:59:50,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:50,405 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 306 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:50,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1568 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:50,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2024-11-17 04:59:50,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 504. [2024-11-17 04:59:50,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6323529411764706) internal successors, (555), 478 states have internal predecessors, (555), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 600 transitions. [2024-11-17 04:59:50,415 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 600 transitions. Word has length 73 [2024-11-17 04:59:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:50,416 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 600 transitions. [2024-11-17 04:59:50,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 600 transitions. [2024-11-17 04:59:50,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-17 04:59:50,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:50,416 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:50,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-17 04:59:50,416 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_29_to_41_0Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:50,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:50,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1848228103, now seen corresponding path program 1 times [2024-11-17 04:59:50,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:50,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281328213] [2024-11-17 04:59:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:50,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:50,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2001994462] [2024-11-17 04:59:50,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:50,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:50,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:50,435 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:50,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 04:59:50,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:50,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-17 04:59:50,539 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:50,542 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 [2024-11-17 04:59:50,545 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 [2024-11-17 04:59:50,860 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:50,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:50,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281328213] [2024-11-17 04:59:50,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:50,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001994462] [2024-11-17 04:59:50,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001994462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:50,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:50,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-17 04:59:50,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386698130] [2024-11-17 04:59:50,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:50,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 04:59:50,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:50,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 04:59:50,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:50,863 INFO L87 Difference]: Start difference. First operand 504 states and 600 transitions. Second operand has 8 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:51,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:51,183 INFO L93 Difference]: Finished difference Result 631 states and 650 transitions. [2024-11-17 04:59:51,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 04:59:51,184 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 75 [2024-11-17 04:59:51,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:51,186 INFO L225 Difference]: With dead ends: 631 [2024-11-17 04:59:51,186 INFO L226 Difference]: Without dead ends: 630 [2024-11-17 04:59:51,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-17 04:59:51,187 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 340 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 2078 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:51,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 2078 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:59:51,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-11-17 04:59:51,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 504. [2024-11-17 04:59:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6294117647058823) internal successors, (554), 478 states have internal predecessors, (554), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:51,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 599 transitions. [2024-11-17 04:59:51,204 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 599 transitions. Word has length 75 [2024-11-17 04:59:51,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:51,205 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 599 transitions. [2024-11-17 04:59:51,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.5) internal successors, (57), 7 states have internal predecessors, (57), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:51,206 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 599 transitions. [2024-11-17 04:59:51,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-17 04:59:51,206 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:51,207 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:51,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-17 04:59:51,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:51,414 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_29_to_41_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:51,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:51,415 INFO L85 PathProgramCache]: Analyzing trace with hash 1460496355, now seen corresponding path program 1 times [2024-11-17 04:59:51,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:51,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174825914] [2024-11-17 04:59:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:51,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:51,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:51,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:51,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:51,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:51,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:51,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174825914] [2024-11-17 04:59:51,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174825914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:51,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:51,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 04:59:51,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893451210] [2024-11-17 04:59:51,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:51,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 04:59:51,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:51,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 04:59:51,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-17 04:59:51,626 INFO L87 Difference]: Start difference. First operand 504 states and 599 transitions. Second operand has 7 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:52,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:52,438 INFO L93 Difference]: Finished difference Result 609 states and 629 transitions. [2024-11-17 04:59:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:52,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 76 [2024-11-17 04:59:52,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:52,441 INFO L225 Difference]: With dead ends: 609 [2024-11-17 04:59:52,441 INFO L226 Difference]: Without dead ends: 608 [2024-11-17 04:59:52,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 04:59:52,441 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 313 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:52,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1623 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 04:59:52,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2024-11-17 04:59:52,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 504. [2024-11-17 04:59:52,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6264705882352941) internal successors, (553), 478 states have internal predecessors, (553), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 598 transitions. [2024-11-17 04:59:52,454 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 598 transitions. Word has length 76 [2024-11-17 04:59:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:52,454 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 598 transitions. [2024-11-17 04:59:52,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 11.6) internal successors, (58), 6 states have internal predecessors, (58), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 598 transitions. [2024-11-17 04:59:52,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-17 04:59:52,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:52,456 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:52,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-17 04:59:52,457 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_29_to_41_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:52,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:52,457 INFO L85 PathProgramCache]: Analyzing trace with hash -917308351, now seen corresponding path program 1 times [2024-11-17 04:59:52,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:52,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831881612] [2024-11-17 04:59:52,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:52,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:52,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,583 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:52,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:52,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831881612] [2024-11-17 04:59:52,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831881612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:52,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:52,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:52,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723739290] [2024-11-17 04:59:52,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:52,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:52,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:52,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:52,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:52,585 INFO L87 Difference]: Start difference. First operand 504 states and 598 transitions. Second operand has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:52,745 INFO L93 Difference]: Finished difference Result 622 states and 642 transitions. [2024-11-17 04:59:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:52,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 78 [2024-11-17 04:59:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:52,747 INFO L225 Difference]: With dead ends: 622 [2024-11-17 04:59:52,747 INFO L226 Difference]: Without dead ends: 620 [2024-11-17 04:59:52,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:52,748 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 305 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:52,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1560 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:52,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-17 04:59:52,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 504. [2024-11-17 04:59:52,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6205882352941177) internal successors, (551), 478 states have internal predecessors, (551), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 596 transitions. [2024-11-17 04:59:52,759 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 596 transitions. Word has length 78 [2024-11-17 04:59:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:52,759 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 596 transitions. [2024-11-17 04:59:52,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:52,759 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 596 transitions. [2024-11-17 04:59:52,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 04:59:52,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:52,760 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:52,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-17 04:59:52,760 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting func_to_recursive_line_29_to_41_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:52,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:52,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1065029473, now seen corresponding path program 1 times [2024-11-17 04:59:52,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:52,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616228069] [2024-11-17 04:59:52,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:52,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:52,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [164116298] [2024-11-17 04:59:52,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:52,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:52,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:52,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:52,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 04:59:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:52,893 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-17 04:59:52,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:52,900 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 [2024-11-17 04:59:52,903 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 [2024-11-17 04:59:53,225 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:53,225 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:53,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616228069] [2024-11-17 04:59:53,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:53,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164116298] [2024-11-17 04:59:53,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164116298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:53,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:53,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-17 04:59:53,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379692948] [2024-11-17 04:59:53,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:53,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-17 04:59:53,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:53,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-17 04:59:53,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-17 04:59:53,228 INFO L87 Difference]: Start difference. First operand 504 states and 596 transitions. Second operand has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:53,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:53,512 INFO L93 Difference]: Finished difference Result 627 states and 646 transitions. [2024-11-17 04:59:53,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 04:59:53,512 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 80 [2024-11-17 04:59:53,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:53,514 INFO L225 Difference]: With dead ends: 627 [2024-11-17 04:59:53,514 INFO L226 Difference]: Without dead ends: 623 [2024-11-17 04:59:53,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 65 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-17 04:59:53,514 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 321 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:53,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 2002 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 04:59:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-17 04:59:53,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 504. [2024-11-17 04:59:53,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 340 states have (on average 1.6088235294117648) internal successors, (547), 478 states have internal predecessors, (547), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:53,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 592 transitions. [2024-11-17 04:59:53,523 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 592 transitions. Word has length 80 [2024-11-17 04:59:53,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:53,524 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 592 transitions. [2024-11-17 04:59:53,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.857142857142858) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-17 04:59:53,524 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 592 transitions. [2024-11-17 04:59:53,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-17 04:59:53,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:53,524 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:53,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 04:59:53,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-17 04:59:53,728 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting func_to_recursive_line_29_to_41_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:53,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1232276689, now seen corresponding path program 1 times [2024-11-17 04:59:53,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:53,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679644710] [2024-11-17 04:59:53,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:53,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:53,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:53,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:53,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 04:59:53,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:53,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:53,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679644710] [2024-11-17 04:59:53,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679644710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:53,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:53,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:53,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17888528] [2024-11-17 04:59:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:53,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:53,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:53,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:53,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:53,861 INFO L87 Difference]: Start difference. First operand 504 states and 592 transitions. Second operand has 6 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:53,948 INFO L93 Difference]: Finished difference Result 509 states and 597 transitions. [2024-11-17 04:59:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:53,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2024-11-17 04:59:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:53,951 INFO L225 Difference]: With dead ends: 509 [2024-11-17 04:59:53,951 INFO L226 Difference]: Without dead ends: 507 [2024-11-17 04:59:53,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:53,952 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 73 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:53,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1650 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2024-11-17 04:59:53,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2024-11-17 04:59:53,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 342 states have (on average 1.605263157894737) internal successors, (549), 480 states have internal predecessors, (549), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-17 04:59:53,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 594 transitions. [2024-11-17 04:59:53,960 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 594 transitions. Word has length 91 [2024-11-17 04:59:53,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:53,961 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 594 transitions. [2024-11-17 04:59:53,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:53,961 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 594 transitions. [2024-11-17 04:59:53,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 04:59:53,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:53,961 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:53,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-17 04:59:53,962 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:53,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:53,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1671402605, now seen corresponding path program 1 times [2024-11-17 04:59:53,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:53,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568667212] [2024-11-17 04:59:53,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:53,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 04:59:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 04:59:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 04:59:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 04:59:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 04:59:54,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 04:59:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,103 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:54,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:54,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568667212] [2024-11-17 04:59:54,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568667212] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:54,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:54,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:54,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457962981] [2024-11-17 04:59:54,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:54,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:54,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:54,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:54,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:54,105 INFO L87 Difference]: Start difference. First operand 506 states and 594 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 04:59:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:54,211 INFO L93 Difference]: Finished difference Result 512 states and 596 transitions. [2024-11-17 04:59:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:59:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 94 [2024-11-17 04:59:54,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:54,213 INFO L225 Difference]: With dead ends: 512 [2024-11-17 04:59:54,213 INFO L226 Difference]: Without dead ends: 508 [2024-11-17 04:59:54,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:54,213 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 175 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:54,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1135 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:54,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-17 04:59:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2024-11-17 04:59:54,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 343 states have (on average 1.5918367346938775) internal successors, (546), 481 states have internal predecessors, (546), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:54,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 592 transitions. [2024-11-17 04:59:54,222 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 592 transitions. Word has length 94 [2024-11-17 04:59:54,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:54,223 INFO L471 AbstractCegarLoop]: Abstraction has 508 states and 592 transitions. [2024-11-17 04:59:54,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 04:59:54,223 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 592 transitions. [2024-11-17 04:59:54,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-17 04:59:54,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:54,224 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:54,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-17 04:59:54,224 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting func_to_recursive_line_29_to_41_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:54,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:54,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1669350144, now seen corresponding path program 1 times [2024-11-17 04:59:54,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:54,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142137585] [2024-11-17 04:59:54,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:54,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:54,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 04:59:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,441 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:54,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:54,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142137585] [2024-11-17 04:59:54,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142137585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:54,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:54,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:54,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824425470] [2024-11-17 04:59:54,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:54,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:54,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:54,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:54,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:54,443 INFO L87 Difference]: Start difference. First operand 508 states and 592 transitions. Second operand has 6 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:54,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:54,589 INFO L93 Difference]: Finished difference Result 584 states and 604 transitions. [2024-11-17 04:59:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:54,590 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 94 [2024-11-17 04:59:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:54,591 INFO L225 Difference]: With dead ends: 584 [2024-11-17 04:59:54,591 INFO L226 Difference]: Without dead ends: 582 [2024-11-17 04:59:54,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:54,592 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 232 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:54,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1569 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:54,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-17 04:59:54,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 511. [2024-11-17 04:59:54,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 346 states have (on average 1.5867052023121386) internal successors, (549), 484 states have internal predecessors, (549), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 595 transitions. [2024-11-17 04:59:54,601 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 595 transitions. Word has length 94 [2024-11-17 04:59:54,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:54,602 INFO L471 AbstractCegarLoop]: Abstraction has 511 states and 595 transitions. [2024-11-17 04:59:54,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 17.75) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 595 transitions. [2024-11-17 04:59:54,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-17 04:59:54,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:54,603 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:54,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-17 04:59:54,603 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting func_to_recursive_line_29_to_41_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:54,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:54,603 INFO L85 PathProgramCache]: Analyzing trace with hash 183801612, now seen corresponding path program 1 times [2024-11-17 04:59:54,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:54,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778976508] [2024-11-17 04:59:54,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:54,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 04:59:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:54,825 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:54,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:54,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778976508] [2024-11-17 04:59:54,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778976508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:54,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:54,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640045400] [2024-11-17 04:59:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:54,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:54,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:54,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:54,827 INFO L87 Difference]: Start difference. First operand 511 states and 595 transitions. Second operand has 6 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:55,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:55,003 INFO L93 Difference]: Finished difference Result 596 states and 616 transitions. [2024-11-17 04:59:55,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:55,003 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 97 [2024-11-17 04:59:55,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:55,005 INFO L225 Difference]: With dead ends: 596 [2024-11-17 04:59:55,005 INFO L226 Difference]: Without dead ends: 594 [2024-11-17 04:59:55,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:55,006 INFO L432 NwaCegarLoop]: 319 mSDtfsCounter, 244 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 1539 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:55,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [249 Valid, 1539 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:55,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-17 04:59:55,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 514. [2024-11-17 04:59:55,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 349 states have (on average 1.5816618911174785) internal successors, (552), 487 states have internal predecessors, (552), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:55,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 598 transitions. [2024-11-17 04:59:55,018 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 598 transitions. Word has length 97 [2024-11-17 04:59:55,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:55,019 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 598 transitions. [2024-11-17 04:59:55,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:55,019 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 598 transitions. [2024-11-17 04:59:55,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-17 04:59:55,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:55,020 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:55,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-17 04:59:55,020 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:55,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:55,020 INFO L85 PathProgramCache]: Analyzing trace with hash -449502181, now seen corresponding path program 1 times [2024-11-17 04:59:55,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:55,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274724978] [2024-11-17 04:59:55,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:55,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 04:59:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:55,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:55,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274724978] [2024-11-17 04:59:55,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274724978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:55,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:55,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:55,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960249170] [2024-11-17 04:59:55,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:55,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:55,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:55,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:55,162 INFO L87 Difference]: Start difference. First operand 514 states and 598 transitions. Second operand has 6 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:55,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:55,294 INFO L93 Difference]: Finished difference Result 608 states and 628 transitions. [2024-11-17 04:59:55,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 04:59:55,294 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 100 [2024-11-17 04:59:55,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:55,296 INFO L225 Difference]: With dead ends: 608 [2024-11-17 04:59:55,296 INFO L226 Difference]: Without dead ends: 606 [2024-11-17 04:59:55,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:55,297 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 256 mSDsluCounter, 1258 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1585 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:55,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1585 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 04:59:55,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2024-11-17 04:59:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 517. [2024-11-17 04:59:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 352 states have (on average 1.5767045454545454) internal successors, (555), 490 states have internal predecessors, (555), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:55,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 601 transitions. [2024-11-17 04:59:55,306 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 601 transitions. Word has length 100 [2024-11-17 04:59:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:55,306 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 601 transitions. [2024-11-17 04:59:55,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-17 04:59:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 601 transitions. [2024-11-17 04:59:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-17 04:59:55,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:55,307 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:55,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-17 04:59:55,307 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:55,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:55,307 INFO L85 PathProgramCache]: Analyzing trace with hash -837213463, now seen corresponding path program 1 times [2024-11-17 04:59:55,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:55,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630782973] [2024-11-17 04:59:55,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:55,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 04:59:55,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 04:59:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 04:59:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 04:59:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 04:59:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 04:59:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-17 04:59:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:55,442 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 04:59:55,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:55,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630782973] [2024-11-17 04:59:55,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630782973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:55,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:55,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 04:59:55,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022808158] [2024-11-17 04:59:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:55,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 04:59:55,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 04:59:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 04:59:55,443 INFO L87 Difference]: Start difference. First operand 517 states and 601 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 04:59:55,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:55,896 INFO L93 Difference]: Finished difference Result 517 states and 601 transitions. [2024-11-17 04:59:55,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 04:59:55,896 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2024-11-17 04:59:55,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:55,898 INFO L225 Difference]: With dead ends: 517 [2024-11-17 04:59:55,898 INFO L226 Difference]: Without dead ends: 516 [2024-11-17 04:59:55,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:55,898 INFO L432 NwaCegarLoop]: 306 mSDtfsCounter, 172 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:55,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1032 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-17 04:59:55,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-17 04:59:55,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 516. [2024-11-17 04:59:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 352 states have (on average 1.5710227272727273) internal successors, (553), 489 states have internal predecessors, (553), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:55,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 599 transitions. [2024-11-17 04:59:55,909 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 599 transitions. Word has length 104 [2024-11-17 04:59:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:55,909 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 599 transitions. [2024-11-17 04:59:55,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 04:59:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 599 transitions. [2024-11-17 04:59:55,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-17 04:59:55,910 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:55,910 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:55,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-17 04:59:55,910 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:55,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:55,911 INFO L85 PathProgramCache]: Analyzing trace with hash -183813282, now seen corresponding path program 1 times [2024-11-17 04:59:55,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:55,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458551713] [2024-11-17 04:59:55,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:55,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 04:59:56,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 04:59:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 04:59:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 04:59:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 04:59:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 04:59:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-17 04:59:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:56,456 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 04:59:56,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:56,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458551713] [2024-11-17 04:59:56,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458551713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:56,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:56,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-17 04:59:56,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088613461] [2024-11-17 04:59:56,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:56,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 04:59:56,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:56,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 04:59:56,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-17 04:59:56,458 INFO L87 Difference]: Start difference. First operand 516 states and 599 transitions. Second operand has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-17 04:59:56,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:56,868 INFO L93 Difference]: Finished difference Result 529 states and 599 transitions. [2024-11-17 04:59:56,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 04:59:56,869 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 105 [2024-11-17 04:59:56,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:56,870 INFO L225 Difference]: With dead ends: 529 [2024-11-17 04:59:56,870 INFO L226 Difference]: Without dead ends: 528 [2024-11-17 04:59:56,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-17 04:59:56,871 INFO L432 NwaCegarLoop]: 295 mSDtfsCounter, 333 mSDsluCounter, 1869 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:56,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 2164 Invalid, 506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:59:56,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-17 04:59:56,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 516. [2024-11-17 04:59:56,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 352 states have (on average 1.5681818181818181) internal successors, (552), 489 states have internal predecessors, (552), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:56,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 598 transitions. [2024-11-17 04:59:56,882 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 598 transitions. Word has length 105 [2024-11-17 04:59:56,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:56,883 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 598 transitions. [2024-11-17 04:59:56,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.444444444444445) internal successors, (76), 10 states have internal predecessors, (76), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-17 04:59:56,883 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 598 transitions. [2024-11-17 04:59:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-17 04:59:56,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:56,884 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:56,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-17 04:59:56,884 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting func_to_recursive_line_29_to_41_0Err53ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:56,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash 759504483, now seen corresponding path program 1 times [2024-11-17 04:59:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:56,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960895323] [2024-11-17 04:59:56,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 04:59:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 04:59:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 04:59:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 04:59:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 04:59:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:57,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:57,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960895323] [2024-11-17 04:59:57,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960895323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 04:59:57,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221474185] [2024-11-17 04:59:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:57,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:57,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:57,186 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:57,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 04:59:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:57,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-17 04:59:57,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:57,327 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 [2024-11-17 04:59:57,357 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-17 04:59:57,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-17 04:59:57,685 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 [2024-11-17 04:59:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 04:59:57,687 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 04:59:58,024 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 25 treesize of output 17 [2024-11-17 04:59:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 04:59:58,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221474185] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 04:59:58,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 04:59:58,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 12] total 28 [2024-11-17 04:59:58,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560923387] [2024-11-17 04:59:58,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 04:59:58,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-17 04:59:58,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-17 04:59:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-17 04:59:58,092 INFO L87 Difference]: Start difference. First operand 516 states and 598 transitions. Second operand has 29 states, 25 states have (on average 9.4) internal successors, (235), 24 states have internal predecessors, (235), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-17 04:59:58,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:58,934 INFO L93 Difference]: Finished difference Result 606 states and 630 transitions. [2024-11-17 04:59:58,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-17 04:59:58,935 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 9.4) internal successors, (235), 24 states have internal predecessors, (235), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) Word has length 106 [2024-11-17 04:59:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:58,937 INFO L225 Difference]: With dead ends: 606 [2024-11-17 04:59:58,937 INFO L226 Difference]: Without dead ends: 603 [2024-11-17 04:59:58,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 195 SyntacticMatches, 7 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=237, Invalid=1485, Unknown=0, NotChecked=0, Total=1722 [2024-11-17 04:59:58,938 INFO L432 NwaCegarLoop]: 363 mSDtfsCounter, 1328 mSDsluCounter, 5271 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 5634 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:58,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 5634 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 04:59:58,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2024-11-17 04:59:58,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 513. [2024-11-17 04:59:58,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 352 states have (on average 1.5596590909090908) internal successors, (549), 486 states have internal predecessors, (549), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 595 transitions. [2024-11-17 04:59:58,950 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 595 transitions. Word has length 106 [2024-11-17 04:59:58,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:58,951 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 595 transitions. [2024-11-17 04:59:58,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 9.4) internal successors, (235), 24 states have internal predecessors, (235), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-17 04:59:58,951 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 595 transitions. [2024-11-17 04:59:58,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-17 04:59:58,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:58,952 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:58,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 04:59:59,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:59,156 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:59,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:59,156 INFO L85 PathProgramCache]: Analyzing trace with hash -550895460, now seen corresponding path program 1 times [2024-11-17 04:59:59,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:59,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420389865] [2024-11-17 04:59:59,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:59,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 04:59:59,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [531727590] [2024-11-17 04:59:59,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:59,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 04:59:59,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 04:59:59,177 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 04:59:59,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 04:59:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 04:59:59,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 04:59:59,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 04:59:59,292 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 [2024-11-17 04:59:59,427 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 04:59:59,428 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 04:59:59,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 04:59:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420389865] [2024-11-17 04:59:59,428 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 04:59:59,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [531727590] [2024-11-17 04:59:59,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [531727590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 04:59:59,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 04:59:59,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 04:59:59,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038002346] [2024-11-17 04:59:59,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 04:59:59,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 04:59:59,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 04:59:59,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 04:59:59,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 04:59:59,431 INFO L87 Difference]: Start difference. First operand 513 states and 595 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 04:59:59,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 04:59:59,724 INFO L93 Difference]: Finished difference Result 611 states and 630 transitions. [2024-11-17 04:59:59,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 04:59:59,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 107 [2024-11-17 04:59:59,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 04:59:59,727 INFO L225 Difference]: With dead ends: 611 [2024-11-17 04:59:59,727 INFO L226 Difference]: Without dead ends: 609 [2024-11-17 04:59:59,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 04:59:59,729 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 324 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 39 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 04:59:59,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1427 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 158 Invalid, 2 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 04:59:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2024-11-17 04:59:59,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 513. [2024-11-17 04:59:59,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 352 states have (on average 1.5539772727272727) internal successors, (547), 486 states have internal predecessors, (547), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-17 04:59:59,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 593 transitions. [2024-11-17 04:59:59,766 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 593 transitions. Word has length 107 [2024-11-17 04:59:59,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 04:59:59,766 INFO L471 AbstractCegarLoop]: Abstraction has 513 states and 593 transitions. [2024-11-17 04:59:59,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 04:59:59,766 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 593 transitions. [2024-11-17 04:59:59,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-17 04:59:59,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 04:59:59,767 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 04:59:59,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-17 04:59:59,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-17 04:59:59,971 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting func_to_recursive_line_29_to_41_0Err52ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 04:59:59,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 04:59:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2069802594, now seen corresponding path program 1 times [2024-11-17 04:59:59,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 04:59:59,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892716161] [2024-11-17 04:59:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 04:59:59,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 04:59:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 05:00:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 05:00:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 05:00:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 05:00:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 05:00:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,272 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:00,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:00,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892716161] [2024-11-17 05:00:00,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892716161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:00,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847121053] [2024-11-17 05:00:00,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:00,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:00,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:00,274 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:00,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 05:00:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:00,389 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-17 05:00:00,392 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:00,401 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 [2024-11-17 05:00:00,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-17 05:00:00,727 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-17 05:00:00,743 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 [2024-11-17 05:00:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 05:00:00,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:00:01,044 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-17 05:00:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-17 05:00:01,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847121053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 05:00:01,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 05:00:01,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 12] total 28 [2024-11-17 05:00:01,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645138541] [2024-11-17 05:00:01,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 05:00:01,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-17 05:00:01,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:01,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-17 05:00:01,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-17 05:00:01,098 INFO L87 Difference]: Start difference. First operand 513 states and 593 transitions. Second operand has 29 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-17 05:00:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:01,982 INFO L93 Difference]: Finished difference Result 864 states and 898 transitions. [2024-11-17 05:00:01,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 05:00:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) Word has length 107 [2024-11-17 05:00:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:01,986 INFO L225 Difference]: With dead ends: 864 [2024-11-17 05:00:01,986 INFO L226 Difference]: Without dead ends: 861 [2024-11-17 05:00:01,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 197 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=252, Invalid=1554, Unknown=0, NotChecked=0, Total=1806 [2024-11-17 05:00:01,987 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 1353 mSDsluCounter, 5720 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1354 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:01,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1354 Valid, 6018 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 05:00:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2024-11-17 05:00:02,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 670. [2024-11-17 05:00:02,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 493 states have (on average 1.5841784989858012) internal successors, (781), 629 states have internal predecessors, (781), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:02,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 855 transitions. [2024-11-17 05:00:02,002 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 855 transitions. Word has length 107 [2024-11-17 05:00:02,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:02,002 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 855 transitions. [2024-11-17 05:00:02,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 9.48) internal successors, (237), 24 states have internal predecessors, (237), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-17 05:00:02,002 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 855 transitions. [2024-11-17 05:00:02,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-17 05:00:02,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:02,003 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:02,016 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-17 05:00:02,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-17 05:00:02,206 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr75ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:02,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:02,207 INFO L85 PathProgramCache]: Analyzing trace with hash -656322908, now seen corresponding path program 1 times [2024-11-17 05:00:02,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:02,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742033632] [2024-11-17 05:00:02,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:02,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:00:02,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [382175719] [2024-11-17 05:00:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:02,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:02,250 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:02,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-17 05:00:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:02,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 05:00:02,396 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:02,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 05:00:02,405 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-17 05:00:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:02,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742033632] [2024-11-17 05:00:02,736 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:00:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382175719] [2024-11-17 05:00:02,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382175719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:02,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:02,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:00:02,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973805276] [2024-11-17 05:00:02,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:02,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:02,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:02,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:02,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:00:02,737 INFO L87 Difference]: Start difference. First operand 670 states and 855 transitions. Second operand has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:03,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:03,018 INFO L93 Difference]: Finished difference Result 766 states and 890 transitions. [2024-11-17 05:00:03,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:00:03,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 110 [2024-11-17 05:00:03,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:03,021 INFO L225 Difference]: With dead ends: 766 [2024-11-17 05:00:03,021 INFO L226 Difference]: Without dead ends: 765 [2024-11-17 05:00:03,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:00:03,022 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 315 mSDsluCounter, 1058 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:03,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1354 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 232 Invalid, 1 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:00:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2024-11-17 05:00:03,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 670. [2024-11-17 05:00:03,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 493 states have (on average 1.5821501014198782) internal successors, (780), 629 states have internal predecessors, (780), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:03,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 854 transitions. [2024-11-17 05:00:03,039 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 854 transitions. Word has length 110 [2024-11-17 05:00:03,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:03,039 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 854 transitions. [2024-11-17 05:00:03,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.8) internal successors, (84), 6 states have internal predecessors, (84), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:03,039 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 854 transitions. [2024-11-17 05:00:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-17 05:00:03,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:03,040 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:03,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-17 05:00:03,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-17 05:00:03,244 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr74ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:03,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:03,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1128826617, now seen corresponding path program 1 times [2024-11-17 05:00:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:03,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383649612] [2024-11-17 05:00:03,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:03,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:00:03,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665539210] [2024-11-17 05:00:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:03,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:03,281 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:03,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-17 05:00:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:03,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 05:00:03,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:03,430 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 [2024-11-17 05:00:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:03,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:03,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:03,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383649612] [2024-11-17 05:00:03,530 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:00:03,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665539210] [2024-11-17 05:00:03,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665539210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:03,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:03,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:00:03,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968689725] [2024-11-17 05:00:03,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:03,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:03,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:03,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:03,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:00:03,532 INFO L87 Difference]: Start difference. First operand 670 states and 854 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:03,785 INFO L93 Difference]: Finished difference Result 765 states and 889 transitions. [2024-11-17 05:00:03,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:00:03,786 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 111 [2024-11-17 05:00:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:03,788 INFO L225 Difference]: With dead ends: 765 [2024-11-17 05:00:03,788 INFO L226 Difference]: Without dead ends: 764 [2024-11-17 05:00:03,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:00:03,789 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 452 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:03,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1213 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 146 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:00:03,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-17 05:00:03,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 670. [2024-11-17 05:00:03,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 493 states have (on average 1.5801217038539555) internal successors, (779), 629 states have internal predecessors, (779), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:03,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 853 transitions. [2024-11-17 05:00:03,812 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 853 transitions. Word has length 111 [2024-11-17 05:00:03,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:03,812 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 853 transitions. [2024-11-17 05:00:03,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:03,813 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 853 transitions. [2024-11-17 05:00:03,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-17 05:00:03,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:03,813 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:03,826 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-17 05:00:04,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-17 05:00:04,014 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:04,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash 633887042, now seen corresponding path program 1 times [2024-11-17 05:00:04,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:04,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570687430] [2024-11-17 05:00:04,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:04,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:00:04,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [663253271] [2024-11-17 05:00:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:04,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:04,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:04,048 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:04,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-17 05:00:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:04,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-17 05:00:04,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:04,209 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 [2024-11-17 05:00:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:04,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:04,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:04,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570687430] [2024-11-17 05:00:04,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:00:04,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663253271] [2024-11-17 05:00:04,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663253271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:04,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:00:04,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037493812] [2024-11-17 05:00:04,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:04,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:00:04,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:04,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:00:04,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:00:04,435 INFO L87 Difference]: Start difference. First operand 670 states and 853 transitions. Second operand has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:04,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:04,675 INFO L93 Difference]: Finished difference Result 764 states and 888 transitions. [2024-11-17 05:00:04,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:00:04,675 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 112 [2024-11-17 05:00:04,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:04,677 INFO L225 Difference]: With dead ends: 764 [2024-11-17 05:00:04,677 INFO L226 Difference]: Without dead ends: 762 [2024-11-17 05:00:04,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-17 05:00:04,678 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 447 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 43 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:04,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1432 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 184 Invalid, 2 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:00:04,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2024-11-17 05:00:04,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 670. [2024-11-17 05:00:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 493 states have (on average 1.5760649087221095) internal successors, (777), 629 states have internal predecessors, (777), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 851 transitions. [2024-11-17 05:00:04,693 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 851 transitions. Word has length 112 [2024-11-17 05:00:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:04,693 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 851 transitions. [2024-11-17 05:00:04,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.333333333333334) internal successors, (86), 7 states have internal predecessors, (86), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 851 transitions. [2024-11-17 05:00:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-17 05:00:04,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:04,694 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:04,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-17 05:00:04,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:04,895 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:04,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:04,895 INFO L85 PathProgramCache]: Analyzing trace with hash -842053291, now seen corresponding path program 1 times [2024-11-17 05:00:04,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:04,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689701090] [2024-11-17 05:00:04,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:04,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:04,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:04,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:00:04,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 05:00:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 05:00:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 05:00:05,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 05:00:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 05:00:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-17 05:00:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:05,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:05,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689701090] [2024-11-17 05:00:05,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689701090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:05,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:05,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 05:00:05,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264060184] [2024-11-17 05:00:05,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:05,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:05,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:05,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:05,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 05:00:05,029 INFO L87 Difference]: Start difference. First operand 670 states and 851 transitions. Second operand has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:05,235 INFO L93 Difference]: Finished difference Result 732 states and 857 transitions. [2024-11-17 05:00:05,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 05:00:05,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2024-11-17 05:00:05,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:05,238 INFO L225 Difference]: With dead ends: 732 [2024-11-17 05:00:05,238 INFO L226 Difference]: Without dead ends: 730 [2024-11-17 05:00:05,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:00:05,239 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 253 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:05,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1260 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 05:00:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-17 05:00:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 670. [2024-11-17 05:00:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 493 states have (on average 1.5720081135902637) internal successors, (775), 629 states have internal predecessors, (775), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:05,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 849 transitions. [2024-11-17 05:00:05,252 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 849 transitions. Word has length 115 [2024-11-17 05:00:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:05,252 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 849 transitions. [2024-11-17 05:00:05,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 849 transitions. [2024-11-17 05:00:05,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-17 05:00:05,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:05,253 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:05,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-17 05:00:05,254 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting func_to_recursive_line_29_to_41_0Err49ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:05,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:05,254 INFO L85 PathProgramCache]: Analyzing trace with hash -241055597, now seen corresponding path program 1 times [2024-11-17 05:00:05,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:05,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528128704] [2024-11-17 05:00:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:05,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 05:00:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 05:00:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 05:00:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 05:00:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 05:00:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-17 05:00:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:05,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:05,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528128704] [2024-11-17 05:00:05,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528128704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:05,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987185719] [2024-11-17 05:00:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:05,505 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:05,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-17 05:00:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:05,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 05:00:05,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:05,689 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 [2024-11-17 05:00:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-17 05:00:05,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:05,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987185719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:05,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:00:05,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-17 05:00:05,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44993222] [2024-11-17 05:00:05,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:05,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:05,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:05,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:05,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-17 05:00:05,701 INFO L87 Difference]: Start difference. First operand 670 states and 849 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:09,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-17 05:00:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:09,910 INFO L93 Difference]: Finished difference Result 670 states and 849 transitions. [2024-11-17 05:00:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:00:09,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 116 [2024-11-17 05:00:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:09,913 INFO L225 Difference]: With dead ends: 670 [2024-11-17 05:00:09,913 INFO L226 Difference]: Without dead ends: 669 [2024-11-17 05:00:09,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-17 05:00:09,913 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 436 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:09,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1110 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 134 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-17 05:00:09,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-17 05:00:09,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2024-11-17 05:00:09,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 493 states have (on average 1.565922920892495) internal successors, (772), 628 states have internal predecessors, (772), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:09,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 846 transitions. [2024-11-17 05:00:09,948 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 846 transitions. Word has length 116 [2024-11-17 05:00:09,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:09,948 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 846 transitions. [2024-11-17 05:00:09,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:09,949 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 846 transitions. [2024-11-17 05:00:09,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-17 05:00:09,949 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:09,949 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:09,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-17 05:00:10,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-17 05:00:10,159 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting func_to_recursive_line_29_to_41_0Err48ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:10,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:10,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1117211176, now seen corresponding path program 1 times [2024-11-17 05:00:10,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:10,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101568953] [2024-11-17 05:00:10,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:10,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 05:00:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 05:00:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 05:00:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 05:00:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 05:00:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-17 05:00:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:10,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101568953] [2024-11-17 05:00:10,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101568953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:10,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623888412] [2024-11-17 05:00:10,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:10,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:10,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:10,519 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:10,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-17 05:00:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:10,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 05:00:10,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:10,706 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 [2024-11-17 05:00:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-17 05:00:10,717 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:10,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623888412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:10,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:00:10,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-17 05:00:10,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791201926] [2024-11-17 05:00:10,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:10,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:10,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:10,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:10,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-17 05:00:10,718 INFO L87 Difference]: Start difference. First operand 669 states and 846 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:14,815 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-17 05:00:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:14,880 INFO L93 Difference]: Finished difference Result 669 states and 846 transitions. [2024-11-17 05:00:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:00:14,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 117 [2024-11-17 05:00:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:14,882 INFO L225 Difference]: With dead ends: 669 [2024-11-17 05:00:14,885 INFO L226 Difference]: Without dead ends: 668 [2024-11-17 05:00:14,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 126 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-17 05:00:14,886 INFO L432 NwaCegarLoop]: 308 mSDtfsCounter, 324 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:14,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1127 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-17 05:00:14,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-17 05:00:14,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2024-11-17 05:00:14,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 493 states have (on average 1.5598377281947262) internal successors, (769), 627 states have internal predecessors, (769), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:14,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 843 transitions. [2024-11-17 05:00:14,904 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 843 transitions. Word has length 117 [2024-11-17 05:00:14,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:14,905 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 843 transitions. [2024-11-17 05:00:14,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 6 states have internal predecessors, (90), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:14,905 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 843 transitions. [2024-11-17 05:00:14,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-17 05:00:14,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:14,906 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:14,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-17 05:00:15,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:15,110 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr69ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:15,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:15,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1759352173, now seen corresponding path program 1 times [2024-11-17 05:00:15,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:15,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155680975] [2024-11-17 05:00:15,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:15,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:00:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 05:00:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 05:00:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 05:00:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 05:00:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 05:00:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-17 05:00:15,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:15,265 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:15,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:15,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155680975] [2024-11-17 05:00:15,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155680975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:15,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:15,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:00:15,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672597963] [2024-11-17 05:00:15,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:15,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:00:15,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:15,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:00:15,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:00:15,266 INFO L87 Difference]: Start difference. First operand 668 states and 843 transitions. Second operand has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:16,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:16,076 INFO L93 Difference]: Finished difference Result 728 states and 849 transitions. [2024-11-17 05:00:16,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:00:16,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 117 [2024-11-17 05:00:16,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:16,078 INFO L225 Difference]: With dead ends: 728 [2024-11-17 05:00:16,081 INFO L226 Difference]: Without dead ends: 727 [2024-11-17 05:00:16,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:00:16,082 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 248 mSDsluCounter, 1210 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:16,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1510 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-17 05:00:16,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-17 05:00:16,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 668. [2024-11-17 05:00:16,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 493 states have (on average 1.5578093306288032) internal successors, (768), 627 states have internal predecessors, (768), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:16,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 842 transitions. [2024-11-17 05:00:16,102 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 842 transitions. Word has length 117 [2024-11-17 05:00:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:16,102 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 842 transitions. [2024-11-17 05:00:16,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 842 transitions. [2024-11-17 05:00:16,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-17 05:00:16,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:16,104 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:16,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-17 05:00:16,104 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:16,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:16,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1294657757, now seen corresponding path program 1 times [2024-11-17 05:00:16,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:16,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038557575] [2024-11-17 05:00:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:16,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-17 05:00:16,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-17 05:00:16,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-17 05:00:16,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-17 05:00:16,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-17 05:00:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-17 05:00:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-17 05:00:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:16,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:16,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038557575] [2024-11-17 05:00:16,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038557575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:16,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 05:00:16,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-17 05:00:16,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275008797] [2024-11-17 05:00:16,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:16,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-17 05:00:16,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:16,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-17 05:00:16,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-17 05:00:16,486 INFO L87 Difference]: Start difference. First operand 668 states and 842 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:17,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:17,249 INFO L93 Difference]: Finished difference Result 727 states and 848 transitions. [2024-11-17 05:00:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 05:00:17,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 118 [2024-11-17 05:00:17,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:17,254 INFO L225 Difference]: With dead ends: 727 [2024-11-17 05:00:17,254 INFO L226 Difference]: Without dead ends: 726 [2024-11-17 05:00:17,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-17 05:00:17,255 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 300 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1195 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:17,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1195 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-17 05:00:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-17 05:00:17,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 668. [2024-11-17 05:00:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 493 states have (on average 1.5557809330628802) internal successors, (767), 627 states have internal predecessors, (767), 34 states have call successors, (34), 6 states have call predecessors, (34), 9 states have return successors, (40), 34 states have call predecessors, (40), 34 states have call successors, (40) [2024-11-17 05:00:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 841 transitions. [2024-11-17 05:00:17,271 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 841 transitions. Word has length 118 [2024-11-17 05:00:17,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:17,271 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 841 transitions. [2024-11-17 05:00:17,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-17 05:00:17,271 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 841 transitions. [2024-11-17 05:00:17,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-17 05:00:17,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:17,272 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:17,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-17 05:00:17,272 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting func_to_recursive_line_29_to_41_0Err47ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:17,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -101880986, now seen corresponding path program 1 times [2024-11-17 05:00:17,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:17,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146354731] [2024-11-17 05:00:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:00:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [224182278] [2024-11-17 05:00:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:17,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:17,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:17,299 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:17,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-17 05:00:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:17,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-17 05:00:17,438 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:17,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 05:00:17,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-17 05:00:17,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-17 05:00:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:17,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:00:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:17,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146354731] [2024-11-17 05:00:17,957 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:00:17,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224182278] [2024-11-17 05:00:17,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224182278] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 05:00:17,957 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 05:00:17,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 17 [2024-11-17 05:00:17,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989119006] [2024-11-17 05:00:17,957 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 05:00:17,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 05:00:17,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:17,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 05:00:17,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2024-11-17 05:00:17,958 INFO L87 Difference]: Start difference. First operand 668 states and 841 transitions. Second operand has 18 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 05:00:21,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-17 05:00:23,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-17 05:00:24,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-17 05:00:28,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0, 1] [2024-11-17 05:00:31,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [1] [2024-11-17 05:00:31,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:31,615 INFO L93 Difference]: Finished difference Result 758 states and 879 transitions. [2024-11-17 05:00:31,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-17 05:00:31,617 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2024-11-17 05:00:31,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:31,619 INFO L225 Difference]: With dead ends: 758 [2024-11-17 05:00:31,619 INFO L226 Difference]: Without dead ends: 757 [2024-11-17 05:00:31,619 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 207 SyntacticMatches, 13 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2024-11-17 05:00:31,620 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 930 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 42 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:31,620 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 4289 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 593 Invalid, 5 Unknown, 0 Unchecked, 13.5s Time] [2024-11-17 05:00:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2024-11-17 05:00:31,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 669. [2024-11-17 05:00:31,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 494 states have (on average 1.548582995951417) internal successors, (765), 627 states have internal predecessors, (765), 34 states have call successors, (34), 6 states have call predecessors, (34), 10 states have return successors, (42), 35 states have call predecessors, (42), 34 states have call successors, (42) [2024-11-17 05:00:31,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 841 transitions. [2024-11-17 05:00:31,643 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 841 transitions. Word has length 119 [2024-11-17 05:00:31,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:31,643 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 841 transitions. [2024-11-17 05:00:31,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 11.733333333333333) internal successors, (176), 15 states have internal predecessors, (176), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-17 05:00:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 841 transitions. [2024-11-17 05:00:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-17 05:00:31,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:31,644 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:31,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-17 05:00:31,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:31,845 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting func_to_recursive_line_29_to_41_0Err46ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:31,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:31,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1136656816, now seen corresponding path program 1 times [2024-11-17 05:00:31,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:31,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146065350] [2024-11-17 05:00:31,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:31,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 05:00:31,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1921495212] [2024-11-17 05:00:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:31,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:31,881 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:31,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-17 05:00:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:32,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-17 05:00:32,035 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:32,039 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 [2024-11-17 05:00:32,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-17 05:00:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-17 05:00:32,376 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 05:00:32,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:32,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146065350] [2024-11-17 05:00:32,468 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 05:00:32,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921495212] [2024-11-17 05:00:32,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921495212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:32,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:00:32,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-17 05:00:32,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658412901] [2024-11-17 05:00:32,468 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-17 05:00:32,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 05:00:32,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:32,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 05:00:32,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-17 05:00:32,470 INFO L87 Difference]: Start difference. First operand 669 states and 841 transitions. Second operand has 12 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:32,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:32,863 INFO L93 Difference]: Finished difference Result 995 states and 1078 transitions. [2024-11-17 05:00:32,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-17 05:00:32,863 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 120 [2024-11-17 05:00:32,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:32,865 INFO L225 Difference]: With dead ends: 995 [2024-11-17 05:00:32,865 INFO L226 Difference]: Without dead ends: 994 [2024-11-17 05:00:32,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 103 SyntacticMatches, 10 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2024-11-17 05:00:32,866 INFO L432 NwaCegarLoop]: 559 mSDtfsCounter, 673 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 3998 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:32,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 3998 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-17 05:00:32,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2024-11-17 05:00:32,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 765. [2024-11-17 05:00:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 584 states have (on average 1.577054794520548) internal successors, (921), 717 states have internal predecessors, (921), 39 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (47), 40 states have call predecessors, (47), 39 states have call successors, (47) [2024-11-17 05:00:32,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1007 transitions. [2024-11-17 05:00:32,888 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1007 transitions. Word has length 120 [2024-11-17 05:00:32,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:32,888 INFO L471 AbstractCegarLoop]: Abstraction has 765 states and 1007 transitions. [2024-11-17 05:00:32,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 9.4) internal successors, (94), 10 states have internal predecessors, (94), 3 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:32,888 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1007 transitions. [2024-11-17 05:00:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-17 05:00:32,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:32,890 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:32,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-17 05:00:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:33,091 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting func_to_recursive_line_29_to_41_0Err45ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:33,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:33,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1405509710, now seen corresponding path program 1 times [2024-11-17 05:00:33,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:33,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621870009] [2024-11-17 05:00:33,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:33,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 05:00:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 05:00:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 05:00:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 05:00:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 05:00:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-17 05:00:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,452 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:33,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621870009] [2024-11-17 05:00:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621870009] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:33,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013371808] [2024-11-17 05:00:33,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:33,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:33,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:33,454 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:33,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-17 05:00:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:33,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 05:00:33,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:33,662 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 [2024-11-17 05:00:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-17 05:00:33,671 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:33,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013371808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:33,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:00:33,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-17 05:00:33,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272912638] [2024-11-17 05:00:33,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:33,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:33,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:33,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:33,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-17 05:00:33,677 INFO L87 Difference]: Start difference. First operand 765 states and 1007 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:37,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-17 05:00:37,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:37,912 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2024-11-17 05:00:37,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:00:37,913 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 122 [2024-11-17 05:00:37,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:37,919 INFO L225 Difference]: With dead ends: 765 [2024-11-17 05:00:37,920 INFO L226 Difference]: Without dead ends: 764 [2024-11-17 05:00:37,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-17 05:00:37,922 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 311 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:37,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1134 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-17 05:00:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-17 05:00:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 764. [2024-11-17 05:00:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 584 states have (on average 1.571917808219178) internal successors, (918), 716 states have internal predecessors, (918), 39 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (47), 40 states have call predecessors, (47), 39 states have call successors, (47) [2024-11-17 05:00:37,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1004 transitions. [2024-11-17 05:00:37,947 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1004 transitions. Word has length 122 [2024-11-17 05:00:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:37,947 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 1004 transitions. [2024-11-17 05:00:37,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1004 transitions. [2024-11-17 05:00:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-17 05:00:37,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:37,952 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:37,981 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-17 05:00:38,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:38,153 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting func_to_recursive_line_29_to_41_0Err44ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:38,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 621128131, now seen corresponding path program 1 times [2024-11-17 05:00:38,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:38,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313089719] [2024-11-17 05:00:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:38,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-17 05:00:38,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-17 05:00:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-17 05:00:38,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-17 05:00:38,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-17 05:00:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-17 05:00:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,432 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-17 05:00:38,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 05:00:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313089719] [2024-11-17 05:00:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313089719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 05:00:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494626313] [2024-11-17 05:00:38,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:38,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 05:00:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 05:00:38,434 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 05:00:38,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-17 05:00:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 05:00:38,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 05:00:38,575 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 05:00:38,640 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 [2024-11-17 05:00:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-17 05:00:38,653 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 05:00:38,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494626313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 05:00:38,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 05:00:38,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-17 05:00:38,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697843406] [2024-11-17 05:00:38,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 05:00:38,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 05:00:38,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 05:00:38,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 05:00:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-17 05:00:38,654 INFO L87 Difference]: Start difference. First operand 764 states and 1004 transitions. Second operand has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:42,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-17 05:00:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 05:00:42,834 INFO L93 Difference]: Finished difference Result 764 states and 1004 transitions. [2024-11-17 05:00:42,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-17 05:00:42,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 123 [2024-11-17 05:00:42,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 05:00:42,837 INFO L225 Difference]: With dead ends: 764 [2024-11-17 05:00:42,837 INFO L226 Difference]: Without dead ends: 763 [2024-11-17 05:00:42,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-17 05:00:42,838 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 307 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-17 05:00:42,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1134 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-17 05:00:42,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-17 05:00:42,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2024-11-17 05:00:42,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 584 states have (on average 1.5667808219178083) internal successors, (915), 715 states have internal predecessors, (915), 39 states have call successors, (39), 7 states have call predecessors, (39), 11 states have return successors, (47), 40 states have call predecessors, (47), 39 states have call successors, (47) [2024-11-17 05:00:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1001 transitions. [2024-11-17 05:00:42,864 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1001 transitions. Word has length 123 [2024-11-17 05:00:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 05:00:42,865 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1001 transitions. [2024-11-17 05:00:42,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.2) internal successors, (96), 6 states have internal predecessors, (96), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-17 05:00:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1001 transitions. [2024-11-17 05:00:42,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-17 05:00:42,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 05:00:42,866 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 05:00:42,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-17 05:00:43,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-17 05:00:43,067 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting func_to_recursive_line_29_to_41_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-17 05:00:43,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 05:00:43,067 INFO L85 PathProgramCache]: Analyzing trace with hash 2075102956, now seen corresponding path program 1 times [2024-11-17 05:00:43,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 05:00:43,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063919682] [2024-11-17 05:00:43,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 05:00:43,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 05:00:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat