./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu.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 ab365eb388b6073fe9b18a07d6de0f6e90e5d145e13f5e07857ef91530e5178e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:43:16,926 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:43:17,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:43:17,008 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:43:17,008 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:43:17,040 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:43:17,041 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:43:17,041 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:43:17,041 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:43:17,041 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:43:17,042 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:43:17,042 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:43:17,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:43:17,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:43:17,043 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:43:17,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:43:17,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:43:17,043 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:43:17,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:43:17,044 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:43:17,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:43:17,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:43:17,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:43:17,049 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:43:17,050 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:43:17,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:43:17,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:43:17,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:43:17,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:43:17,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:43:17,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:43:17,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:43:17,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:43:17,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab365eb388b6073fe9b18a07d6de0f6e90e5d145e13f5e07857ef91530e5178e [2024-10-24 20:43:17,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:43:17,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:43:17,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:43:17,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:43:17,349 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:43:17,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu.c [2024-10-24 20:43:18,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:43:18,908 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:43:18,909 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu.c [2024-10-24 20:43:18,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c636e646/fbc060cf49f644d1ab440e4ab6886473/FLAGebb551c0a [2024-10-24 20:43:18,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c636e646/fbc060cf49f644d1ab440e4ab6886473 [2024-10-24 20:43:18,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:43:18,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:43:18,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:43:18,939 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:43:18,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:43:18,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:43:18" (1/1) ... [2024-10-24 20:43:18,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac86704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:18, skipping insertion in model container [2024-10-24 20:43:18,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:43:18" (1/1) ... [2024-10-24 20:43:18,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:43:19,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:43:19,140 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:43:19,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:43:19,181 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:43:19,182 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19 WrapperNode [2024-10-24 20:43:19,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:43:19,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:43:19,185 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:43:19,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:43:19,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,199 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,223 INFO L138 Inliner]: procedures = 16, calls = 100, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 197 [2024-10-24 20:43:19,224 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:43:19,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:43:19,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:43:19,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:43:19,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,241 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,262 INFO L175 MemorySlicer]: Split 66 memory accesses to 6 slices as follows [2, 12, 15, 21, 11, 5]. 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, 2, 2, 2, 1]. [2024-10-24 20:43:19,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,263 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,269 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,270 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,273 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,275 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:43:19,276 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:43:19,276 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:43:19,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:43:19,277 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (1/1) ... [2024-10-24 20:43:19,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:43:19,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:43:19,310 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) [2024-10-24 20:43:19,312 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 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-24 20:43:19,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_39_0 [2024-10-24 20:43:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_39_0 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:43:19,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 20:43:19,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:43:19,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:43:19,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 20:43:19,439 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:43:19,441 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:43:20,139 INFO L? ?]: Removed 357 outVars from TransFormulas that were not future-live. [2024-10-24 20:43:20,140 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:43:20,183 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:43:20,183 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 20:43:20,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:43:20 BoogieIcfgContainer [2024-10-24 20:43:20,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:43:20,185 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:43:20,185 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:43:20,189 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:43:20,189 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:43:18" (1/3) ... [2024-10-24 20:43:20,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691248e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:43:20, skipping insertion in model container [2024-10-24 20:43:20,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:43:19" (2/3) ... [2024-10-24 20:43:20,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6691248e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:43:20, skipping insertion in model container [2024-10-24 20:43:20,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:43:20" (3/3) ... [2024-10-24 20:43:20,191 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohencu.c [2024-10-24 20:43:20,203 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:43:20,204 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2024-10-24 20:43:20,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:43:20,272 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;@44bfaff2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:43:20,273 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-10-24 20:43:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 312 states, 158 states have (on average 1.8924050632911393) internal successors, (299), 297 states have internal predecessors, (299), 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) [2024-10-24 20:43:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-24 20:43:20,283 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:20,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-24 20:43:20,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:20,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:20,289 INFO L85 PathProgramCache]: Analyzing trace with hash 370391600, now seen corresponding path program 1 times [2024-10-24 20:43:20,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:20,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868213385] [2024-10-24 20:43:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:20,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:20,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:43:20,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:20,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868213385] [2024-10-24 20:43:20,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868213385] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:20,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:20,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 20:43:20,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375229208] [2024-10-24 20:43:20,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:20,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:20,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:20,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:20,738 INFO L87 Difference]: Start difference. First operand has 312 states, 158 states have (on average 1.8924050632911393) internal successors, (299), 297 states have internal predecessors, (299), 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 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-10-24 20:43:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:20,970 INFO L93 Difference]: Finished difference Result 730 states and 784 transitions. [2024-10-24 20:43:20,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:20,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 5 [2024-10-24 20:43:20,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:20,984 INFO L225 Difference]: With dead ends: 730 [2024-10-24 20:43:20,984 INFO L226 Difference]: Without dead ends: 417 [2024-10-24 20:43:20,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:20,994 INFO L432 NwaCegarLoop]: 305 mSDtfsCounter, 205 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1505 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:20,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1505 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:43:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-10-24 20:43:21,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 370. [2024-10-24 20:43:21,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 212 states have (on average 1.8537735849056605) internal successors, (393), 350 states have internal predecessors, (393), 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) [2024-10-24 20:43:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 428 transitions. [2024-10-24 20:43:21,050 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 428 transitions. Word has length 5 [2024-10-24 20:43:21,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:21,050 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 428 transitions. [2024-10-24 20:43:21,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-10-24 20:43:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 428 transitions. [2024-10-24 20:43:21,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-24 20:43:21,051 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:21,051 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:43:21,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:43:21,052 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_27_to_39_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:21,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:21,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2009196607, now seen corresponding path program 1 times [2024-10-24 20:43:21,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:21,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137655773] [2024-10-24 20:43:21,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:21,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:43:21,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:21,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137655773] [2024-10-24 20:43:21,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137655773] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:21,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:21,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:21,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111255102] [2024-10-24 20:43:21,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:21,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:21,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:21,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:21,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:21,264 INFO L87 Difference]: Start difference. First operand 370 states and 428 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:21,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:21,447 INFO L93 Difference]: Finished difference Result 417 states and 433 transitions. [2024-10-24 20:43:21,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:21,447 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 15 [2024-10-24 20:43:21,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:21,449 INFO L225 Difference]: With dead ends: 417 [2024-10-24 20:43:21,450 INFO L226 Difference]: Without dead ends: 413 [2024-10-24 20:43:21,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:21,452 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 200 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:21,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1472 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-10-24 20:43:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 370. [2024-10-24 20:43:21,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 212 states have (on average 1.8349056603773586) internal successors, (389), 350 states have internal predecessors, (389), 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) [2024-10-24 20:43:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 424 transitions. [2024-10-24 20:43:21,483 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 424 transitions. Word has length 15 [2024-10-24 20:43:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:21,484 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 424 transitions. [2024-10-24 20:43:21,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 424 transitions. [2024-10-24 20:43:21,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-24 20:43:21,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:21,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:43:21,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 20:43:21,485 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_39_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:21,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2015087747, now seen corresponding path program 1 times [2024-10-24 20:43:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251727947] [2024-10-24 20:43:21,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:43:21,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:21,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251727947] [2024-10-24 20:43:21,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251727947] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:21,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:21,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978783639] [2024-10-24 20:43:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:21,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:21,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:21,607 INFO L87 Difference]: Start difference. First operand 370 states and 424 transitions. Second operand has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:21,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:21,770 INFO L93 Difference]: Finished difference Result 413 states and 429 transitions. [2024-10-24 20:43:21,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:21,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 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 19 [2024-10-24 20:43:21,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:21,773 INFO L225 Difference]: With dead ends: 413 [2024-10-24 20:43:21,773 INFO L226 Difference]: Without dead ends: 411 [2024-10-24 20:43:21,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:21,776 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 186 mSDsluCounter, 1178 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1474 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:21,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1474 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:21,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-10-24 20:43:21,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 370. [2024-10-24 20:43:21,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 212 states have (on average 1.8254716981132075) internal successors, (387), 350 states have internal predecessors, (387), 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) [2024-10-24 20:43:21,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 422 transitions. [2024-10-24 20:43:21,790 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 422 transitions. Word has length 19 [2024-10-24 20:43:21,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:21,791 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 422 transitions. [2024-10-24 20:43:21,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:21,791 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 422 transitions. [2024-10-24 20:43:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-24 20:43:21,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:21,793 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] [2024-10-24 20:43:21,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:43:21,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_39_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:21,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:21,794 INFO L85 PathProgramCache]: Analyzing trace with hash -530923867, now seen corresponding path program 1 times [2024-10-24 20:43:21,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:21,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118915254] [2024-10-24 20:43:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:21,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:43:21,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:21,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118915254] [2024-10-24 20:43:21,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118915254] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:21,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:21,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:43:21,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326129368] [2024-10-24 20:43:21,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:21,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:43:21,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:21,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:43:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:43:21,997 INFO L87 Difference]: Start difference. First operand 370 states and 422 transitions. Second operand has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:22,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:22,178 INFO L93 Difference]: Finished difference Result 411 states and 427 transitions. [2024-10-24 20:43:22,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:43:22,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 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 21 [2024-10-24 20:43:22,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:22,182 INFO L225 Difference]: With dead ends: 411 [2024-10-24 20:43:22,182 INFO L226 Difference]: Without dead ends: 409 [2024-10-24 20:43:22,183 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:43:22,184 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 181 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:22,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1750 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-10-24 20:43:22,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 370. [2024-10-24 20:43:22,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 212 states have (on average 1.8160377358490567) internal successors, (385), 350 states have internal predecessors, (385), 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) [2024-10-24 20:43:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 420 transitions. [2024-10-24 20:43:22,202 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 420 transitions. Word has length 21 [2024-10-24 20:43:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:22,202 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 420 transitions. [2024-10-24 20:43:22,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-24 20:43:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 420 transitions. [2024-10-24 20:43:22,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-24 20:43:22,203 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:22,203 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] [2024-10-24 20:43:22,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 20:43:22,204 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_39_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:22,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash 721229366, now seen corresponding path program 1 times [2024-10-24 20:43:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:22,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427221715] [2024-10-24 20:43:22,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:22,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:22,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 20:43:22,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:22,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427221715] [2024-10-24 20:43:22,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427221715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:22,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:22,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:22,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831162741] [2024-10-24 20:43:22,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:22,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:22,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:22,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:22,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:22,339 INFO L87 Difference]: Start difference. First operand 370 states and 420 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) [2024-10-24 20:43:22,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:22,482 INFO L93 Difference]: Finished difference Result 409 states and 425 transitions. [2024-10-24 20:43:22,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:22,483 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 [2024-10-24 20:43:22,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:22,484 INFO L225 Difference]: With dead ends: 409 [2024-10-24 20:43:22,484 INFO L226 Difference]: Without dead ends: 407 [2024-10-24 20:43:22,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:22,487 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 175 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:22,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1476 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:22,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-10-24 20:43:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 370. [2024-10-24 20:43:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 212 states have (on average 1.8066037735849056) internal successors, (383), 350 states have internal predecessors, (383), 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) [2024-10-24 20:43:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 418 transitions. [2024-10-24 20:43:22,501 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 418 transitions. Word has length 22 [2024-10-24 20:43:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:22,502 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 418 transitions. [2024-10-24 20:43:22,502 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) [2024-10-24 20:43:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 418 transitions. [2024-10-24 20:43:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 20:43:22,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:22,504 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] [2024-10-24 20:43:22,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 20:43:22,505 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_27_to_39_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:22,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:22,505 INFO L85 PathProgramCache]: Analyzing trace with hash 133250338, now seen corresponding path program 1 times [2024-10-24 20:43:22,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:22,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797049611] [2024-10-24 20:43:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:22,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:22,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:43:22,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [861974721] [2024-10-24 20:43:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:22,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:43:22,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:43:22,543 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) [2024-10-24 20:43:22,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:43:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:22,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-24 20:43:22,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:43:22,678 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 11 treesize of output 7 [2024-10-24 20:43:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:43:22,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:43:22,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:22,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797049611] [2024-10-24 20:43:22,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:43:22,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861974721] [2024-10-24 20:43:22,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861974721] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:22,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:22,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:22,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858503262] [2024-10-24 20:43:22,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:22,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:43:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:22,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:43:22,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:43:22,804 INFO L87 Difference]: Start difference. First operand 370 states and 418 transitions. Second operand has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-10-24 20:43:23,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:23,004 INFO L93 Difference]: Finished difference Result 589 states and 608 transitions. [2024-10-24 20:43:23,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:43:23,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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 31 [2024-10-24 20:43:23,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:23,021 INFO L225 Difference]: With dead ends: 589 [2024-10-24 20:43:23,022 INFO L226 Difference]: Without dead ends: 585 [2024-10-24 20:43:23,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:43:23,024 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 344 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:23,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1646 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:43:23,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-10-24 20:43:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 452. [2024-10-24 20:43:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.8159722222222223) internal successors, (523), 426 states have internal predecessors, (523), 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) [2024-10-24 20:43:23,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 568 transitions. [2024-10-24 20:43:23,034 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 568 transitions. Word has length 31 [2024-10-24 20:43:23,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:23,035 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 568 transitions. [2024-10-24 20:43:23,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-10-24 20:43:23,035 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 568 transitions. [2024-10-24 20:43:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-24 20:43:23,036 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:23,036 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] [2024-10-24 20:43:23,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:43:23,236 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 [2024-10-24 20:43:23,237 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_39_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:23,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:23,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1037075609, now seen corresponding path program 1 times [2024-10-24 20:43:23,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:23,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134620199] [2024-10-24 20:43:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:23,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:43:23,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382136210] [2024-10-24 20:43:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:23,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:43:23,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:43:23,263 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) [2024-10-24 20:43:23,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:43:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:23,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 20:43:23,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:43:23,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-24 20:43:23,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:23,752 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-24 20:43:23,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2024-10-24 20:43:23,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-24 20:43:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:43:23,780 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:43:23,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:23,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134620199] [2024-10-24 20:43:23,857 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:43:23,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382136210] [2024-10-24 20:43:23,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382136210] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:43:23,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:43:23,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-24 20:43:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170688300] [2024-10-24 20:43:23,857 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:43:23,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:43:23,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:23,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:43:23,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:43:23,858 INFO L87 Difference]: Start difference. First operand 452 states and 568 transitions. Second operand has 12 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 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) [2024-10-24 20:43:28,323 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] [2024-10-24 20:43:32,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:36,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:40,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:44,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:48,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:52,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-24 20:43:56,535 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] [2024-10-24 20:43:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:56,582 INFO L93 Difference]: Finished difference Result 593 states and 612 transitions. [2024-10-24 20:43:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:43:56,582 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 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 41 [2024-10-24 20:43:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:56,584 INFO L225 Difference]: With dead ends: 593 [2024-10-24 20:43:56,584 INFO L226 Difference]: Without dead ends: 592 [2024-10-24 20:43:56,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:43:56,586 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 630 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 34 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:56,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 2254 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 587 Invalid, 8 Unknown, 0 Unchecked, 32.5s Time] [2024-10-24 20:43:56,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-10-24 20:43:56,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 452. [2024-10-24 20:43:56,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.8125) internal successors, (522), 426 states have internal predecessors, (522), 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) [2024-10-24 20:43:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 567 transitions. [2024-10-24 20:43:56,602 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 567 transitions. Word has length 41 [2024-10-24 20:43:56,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:56,603 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 567 transitions. [2024-10-24 20:43:56,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.1) internal successors, (31), 9 states have internal predecessors, (31), 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) [2024-10-24 20:43:56,604 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 567 transitions. [2024-10-24 20:43:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-24 20:43:56,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:56,605 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] [2024-10-24 20:43:56,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:43:56,805 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 [2024-10-24 20:43:56,806 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_39_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:56,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:56,807 INFO L85 PathProgramCache]: Analyzing trace with hash 2084572886, now seen corresponding path program 1 times [2024-10-24 20:43:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:56,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559988378] [2024-10-24 20:43:56,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:56,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:43:56,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2100137332] [2024-10-24 20:43:56,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:56,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:43:56,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:43:56,832 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) [2024-10-24 20:43:56,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:43:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:56,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-10-24 20:43:56,913 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:43:56,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:56,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-24 20:43:57,199 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:43:57,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:57,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559988378] [2024-10-24 20:43:57,342 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:43:57,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100137332] [2024-10-24 20:43:57,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100137332] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:43:57,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:43:57,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-24 20:43:57,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333451411] [2024-10-24 20:43:57,343 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:43:57,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:43:57,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:57,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:43:57,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:43:57,343 INFO L87 Difference]: Start difference. First operand 452 states and 567 transitions. Second operand has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:43:57,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:57,748 INFO L93 Difference]: Finished difference Result 592 states and 611 transitions. [2024-10-24 20:43:57,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:43:57,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 2 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 42 [2024-10-24 20:43:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:57,750 INFO L225 Difference]: With dead ends: 592 [2024-10-24 20:43:57,750 INFO L226 Difference]: Without dead ends: 591 [2024-10-24 20:43:57,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:43:57,751 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 511 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:57,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1857 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:43:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-10-24 20:43:57,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 452. [2024-10-24 20:43:57,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.8090277777777777) internal successors, (521), 426 states have internal predecessors, (521), 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) [2024-10-24 20:43:57,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 566 transitions. [2024-10-24 20:43:57,760 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 566 transitions. Word has length 42 [2024-10-24 20:43:57,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:57,761 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 566 transitions. [2024-10-24 20:43:57,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:43:57,761 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 566 transitions. [2024-10-24 20:43:57,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-24 20:43:57,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:57,762 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] [2024-10-24 20:43:57,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 20:43:57,962 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 [2024-10-24 20:43:57,963 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_39_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:57,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 197250107, now seen corresponding path program 1 times [2024-10-24 20:43:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:57,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035838814] [2024-10-24 20:43:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:57,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:43:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:43:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:43:58,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:58,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035838814] [2024-10-24 20:43:58,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035838814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:58,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:58,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:58,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648052668] [2024-10-24 20:43:58,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:58,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:58,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:58,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:58,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:58,107 INFO L87 Difference]: Start difference. First operand 452 states and 566 transitions. Second operand has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-10-24 20:43:58,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:58,273 INFO L93 Difference]: Finished difference Result 559 states and 579 transitions. [2024-10-24 20:43:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:58,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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 43 [2024-10-24 20:43:58,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:58,275 INFO L225 Difference]: With dead ends: 559 [2024-10-24 20:43:58,275 INFO L226 Difference]: Without dead ends: 557 [2024-10-24 20:43:58,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:58,276 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 313 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:58,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1424 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:58,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-10-24 20:43:58,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 452. [2024-10-24 20:43:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.8020833333333333) internal successors, (519), 426 states have internal predecessors, (519), 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) [2024-10-24 20:43:58,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 564 transitions. [2024-10-24 20:43:58,285 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 564 transitions. Word has length 43 [2024-10-24 20:43:58,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:58,286 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 564 transitions. [2024-10-24 20:43:58,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-10-24 20:43:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 564 transitions. [2024-10-24 20:43:58,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-24 20:43:58,286 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:58,287 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] [2024-10-24 20:43:58,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 20:43:58,287 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_39_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:58,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:58,287 INFO L85 PathProgramCache]: Analyzing trace with hash 578794461, now seen corresponding path program 1 times [2024-10-24 20:43:58,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:58,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091865543] [2024-10-24 20:43:58,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:43:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:43:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,498 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:43:58,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:58,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091865543] [2024-10-24 20:43:58,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091865543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:58,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:58,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 20:43:58,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980914075] [2024-10-24 20:43:58,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:58,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 20:43:58,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:58,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 20:43:58,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 20:43:58,500 INFO L87 Difference]: Start difference. First operand 452 states and 564 transitions. Second operand has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-10-24 20:43:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:58,768 INFO L93 Difference]: Finished difference Result 557 states and 577 transitions. [2024-10-24 20:43:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:43:58,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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 45 [2024-10-24 20:43:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:58,770 INFO L225 Difference]: With dead ends: 557 [2024-10-24 20:43:58,770 INFO L226 Difference]: Without dead ends: 556 [2024-10-24 20:43:58,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:43:58,771 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 309 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:58,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1687 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:43:58,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-24 20:43:58,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 452. [2024-10-24 20:43:58,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.7986111111111112) internal successors, (518), 426 states have internal predecessors, (518), 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) [2024-10-24 20:43:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 563 transitions. [2024-10-24 20:43:58,781 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 563 transitions. Word has length 45 [2024-10-24 20:43:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:58,782 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 563 transitions. [2024-10-24 20:43:58,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 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) [2024-10-24 20:43:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 563 transitions. [2024-10-24 20:43:58,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-24 20:43:58,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:58,782 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] [2024-10-24 20:43:58,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 20:43:58,783 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_39_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:58,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash 762759194, now seen corresponding path program 1 times [2024-10-24 20:43:58,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:58,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480511320] [2024-10-24 20:43:58,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:58,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:43:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:43:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:43:58,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480511320] [2024-10-24 20:43:58,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480511320] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:58,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:58,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:58,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346833651] [2024-10-24 20:43:58,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:58,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:58,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:58,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:58,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:58,890 INFO L87 Difference]: Start difference. First operand 452 states and 563 transitions. Second operand has 6 states, 4 states have (on average 8.25) internal successors, (33), 5 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) [2024-10-24 20:43:59,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:59,196 INFO L93 Difference]: Finished difference Result 556 states and 576 transitions. [2024-10-24 20:43:59,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:59,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 5 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 [2024-10-24 20:43:59,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:59,198 INFO L225 Difference]: With dead ends: 556 [2024-10-24 20:43:59,198 INFO L226 Difference]: Without dead ends: 555 [2024-10-24 20:43:59,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:59,199 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 306 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:59,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1424 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:43:59,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-10-24 20:43:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 452. [2024-10-24 20:43:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.7951388888888888) internal successors, (517), 426 states have internal predecessors, (517), 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) [2024-10-24 20:43:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 562 transitions. [2024-10-24 20:43:59,209 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 562 transitions. Word has length 46 [2024-10-24 20:43:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:59,209 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 562 transitions. [2024-10-24 20:43:59,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.25) internal successors, (33), 5 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) [2024-10-24 20:43:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 562 transitions. [2024-10-24 20:43:59,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-24 20:43:59,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:59,212 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] [2024-10-24 20:43:59,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 20:43:59,212 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_39_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:59,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:59,212 INFO L85 PathProgramCache]: Analyzing trace with hash -2124268673, now seen corresponding path program 1 times [2024-10-24 20:43:59,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:59,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570303978] [2024-10-24 20:43:59,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:59,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:59,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:43:59,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:59,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:43:59,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:59,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:43:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:43:59,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:59,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570303978] [2024-10-24 20:43:59,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570303978] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:59,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:59,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:43:59,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054959080] [2024-10-24 20:43:59,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:59,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:43:59,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:59,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:43:59,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:43:59,338 INFO L87 Difference]: Start difference. First operand 452 states and 562 transitions. Second operand has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-10-24 20:43:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:43:59,486 INFO L93 Difference]: Finished difference Result 567 states and 587 transitions. [2024-10-24 20:43:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:43:59,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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 47 [2024-10-24 20:43:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:43:59,488 INFO L225 Difference]: With dead ends: 567 [2024-10-24 20:43:59,488 INFO L226 Difference]: Without dead ends: 565 [2024-10-24 20:43:59,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:43:59,489 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 311 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:43:59,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1416 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:43:59,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-10-24 20:43:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 452. [2024-10-24 20:43:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.7881944444444444) internal successors, (515), 426 states have internal predecessors, (515), 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) [2024-10-24 20:43:59,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 560 transitions. [2024-10-24 20:43:59,498 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 560 transitions. Word has length 47 [2024-10-24 20:43:59,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:43:59,498 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 560 transitions. [2024-10-24 20:43:59,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-10-24 20:43:59,498 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 560 transitions. [2024-10-24 20:43:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-24 20:43:59,499 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:43:59,499 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] [2024-10-24 20:43:59,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 20:43:59,499 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_39_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:43:59,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:43:59,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1312726239, now seen corresponding path program 1 times [2024-10-24 20:43:59,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:43:59,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902142951] [2024-10-24 20:43:59,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:59,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:43:59,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:43:59,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660712928] [2024-10-24 20:43:59,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:43:59,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:43:59,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:43:59,515 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) [2024-10-24 20:43:59,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:43:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:43:59,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-10-24 20:43:59,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:43:59,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:59,600 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:59,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-24 20:43:59,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:43:59,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:43:59,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:43:59,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902142951] [2024-10-24 20:43:59,952 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:43:59,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660712928] [2024-10-24 20:43:59,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660712928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:43:59,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:43:59,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 20:43:59,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394436070] [2024-10-24 20:43:59,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:43:59,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 20:43:59,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:43:59,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 20:43:59,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:43:59,954 INFO L87 Difference]: Start difference. First operand 452 states and 560 transitions. Second operand has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2024-10-24 20:44:00,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:44:00,357 INFO L93 Difference]: Finished difference Result 581 states and 600 transitions. [2024-10-24 20:44:00,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 20:44:00,358 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 49 [2024-10-24 20:44:00,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:44:00,359 INFO L225 Difference]: With dead ends: 581 [2024-10-24 20:44:00,359 INFO L226 Difference]: Without dead ends: 579 [2024-10-24 20:44:00,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:44:00,360 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 564 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:44:00,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1667 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:44:00,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2024-10-24 20:44:00,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 452. [2024-10-24 20:44:00,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.78125) internal successors, (513), 426 states have internal predecessors, (513), 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) [2024-10-24 20:44:00,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 558 transitions. [2024-10-24 20:44:00,369 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 558 transitions. Word has length 49 [2024-10-24 20:44:00,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:44:00,370 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 558 transitions. [2024-10-24 20:44:00,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2024-10-24 20:44:00,370 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 558 transitions. [2024-10-24 20:44:00,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-24 20:44:00,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:44:00,371 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] [2024-10-24 20:44:00,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 20:44:00,574 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 [2024-10-24 20:44:00,574 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_27_to_39_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:44:00,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:44:00,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1190472387, now seen corresponding path program 1 times [2024-10-24 20:44:00,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:44:00,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393421760] [2024-10-24 20:44:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:44:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:44:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:44:00,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-24 20:44:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:44:00,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 20:44:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:44:00,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-24 20:44:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:44:00,687 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-24 20:44:00,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:44:00,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393421760] [2024-10-24 20:44:00,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393421760] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:44:00,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:44:00,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 20:44:00,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631338210] [2024-10-24 20:44:00,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:44:00,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:44:00,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:44:00,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:44:00,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 20:44:00,689 INFO L87 Difference]: Start difference. First operand 452 states and 558 transitions. Second operand has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (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) [2024-10-24 20:44:00,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:44:00,839 INFO L93 Difference]: Finished difference Result 575 states and 595 transitions. [2024-10-24 20:44:00,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:44:00,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (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 [2024-10-24 20:44:00,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:44:00,842 INFO L225 Difference]: With dead ends: 575 [2024-10-24 20:44:00,842 INFO L226 Difference]: Without dead ends: 573 [2024-10-24 20:44:00,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:44:00,843 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 309 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:44:00,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1409 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:44:00,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2024-10-24 20:44:00,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 452. [2024-10-24 20:44:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 288 states have (on average 1.7743055555555556) internal successors, (511), 426 states have internal predecessors, (511), 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) [2024-10-24 20:44:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 556 transitions. [2024-10-24 20:44:00,853 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 556 transitions. Word has length 51 [2024-10-24 20:44:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:44:00,853 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 556 transitions. [2024-10-24 20:44:00,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (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) [2024-10-24 20:44:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 556 transitions. [2024-10-24 20:44:00,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-24 20:44:00,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:44:00,854 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] [2024-10-24 20:44:00,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 20:44:00,855 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_27_to_39_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_27_to_39_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_27_to_39_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-10-24 20:44:00,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:44:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1582666341, now seen corresponding path program 1 times [2024-10-24 20:44:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:44:00,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063575980] [2024-10-24 20:44:00,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:44:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:44:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat