./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b375ae29a973823eea93f22f40d893acb563fa864c4860e04525925a120d938 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:13:26,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:13:27,018 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:13:27,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:13:27,024 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:13:27,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:13:27,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:13:27,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:13:27,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:13:27,050 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:13:27,050 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:13:27,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:13:27,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:13:27,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:13:27,053 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:13:27,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:13:27,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:13:27,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:13:27,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:13:27,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:13:27,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:13:27,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:13:27,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:13:27,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:13:27,059 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:13:27,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:13:27,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:13:27,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:13:27,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:13:27,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:13:27,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:13:27,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:13:27,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:13:27,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:13:27,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:13:27,061 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:13:27,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:13:27,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:13:27,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:13:27,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b375ae29a973823eea93f22f40d893acb563fa864c4860e04525925a120d938 [2024-11-19 11:13:27,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:13:27,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:13:27,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:13:27,343 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:13:27,343 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:13:27,344 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2024-11-19 11:13:28,716 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:13:28,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:13:28,881 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_ps6-ll.c [2024-11-19 11:13:28,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5ad256a/203ecf4660c3430ab518b7021c5d5e03/FLAG9918fe2a9 [2024-11-19 11:13:29,273 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e5ad256a/203ecf4660c3430ab518b7021c5d5e03 [2024-11-19 11:13:29,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:13:29,276 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:13:29,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:13:29,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:13:29,281 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:13:29,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a28210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29, skipping insertion in model container [2024-11-19 11:13:29,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,302 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:13:29,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:13:29,550 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:13:29,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:13:29,595 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:13:29,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29 WrapperNode [2024-11-19 11:13:29,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:13:29,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:13:29,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:13:29,615 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:13:29,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,686 INFO L138 Inliner]: procedures = 16, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 143 [2024-11-19 11:13:29,687 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:13:29,687 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:13:29,687 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:13:29,687 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:13:29,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,712 INFO L175 MemorySlicer]: Split 60 memory accesses to 5 slices as follows [2, 4, 4, 5, 45]. 75 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 1, 2, 2]. [2024-11-19 11:13:29,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,719 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:13:29,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:13:29,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:13:29,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:13:29,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (1/1) ... [2024-11-19 11:13:29,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:13:29,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:29,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 11:13:29,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 11:13:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:13:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:13:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 11:13:29,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 11:13:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 11:13:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 11:13:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 11:13:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 11:13:29,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 11:13:29,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:13:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 11:13:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 11:13:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 11:13:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 11:13:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_27_to_35_0 [2024-11-19 11:13:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_27_to_35_0 [2024-11-19 11:13:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 11:13:29,890 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:13:29,892 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:13:32,272 INFO L? ?]: Removed 502 outVars from TransFormulas that were not future-live. [2024-11-19 11:13:32,273 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:13:32,292 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:13:32,292 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 11:13:32,292 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:13:32 BoogieIcfgContainer [2024-11-19 11:13:32,292 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:13:32,294 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:13:32,294 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:13:32,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:13:32,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:13:29" (1/3) ... [2024-11-19 11:13:32,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419c1d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:13:32, skipping insertion in model container [2024-11-19 11:13:32,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:13:29" (2/3) ... [2024-11-19 11:13:32,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419c1d68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:13:32, skipping insertion in model container [2024-11-19 11:13:32,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:13:32" (3/3) ... [2024-11-19 11:13:32,305 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_ps6-ll.c [2024-11-19 11:13:32,317 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:13:32,317 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 102 error locations. [2024-11-19 11:13:32,378 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:13:32,387 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;@5d4462e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:13:32,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 102 error locations. [2024-11-19 11:13:32,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 121 states have (on average 1.8760330578512396) internal successors, (227), 224 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-19 11:13:32,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 11:13:32,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:32,412 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:32,412 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:32,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash 126580329, now seen corresponding path program 1 times [2024-11-19 11:13:32,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:32,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978227177] [2024-11-19 11:13:32,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:32,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:32,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:32,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:32,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:32,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978227177] [2024-11-19 11:13:32,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978227177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:32,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:32,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 11:13:32,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201119813] [2024-11-19 11:13:32,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:32,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 11:13:32,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 11:13:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 11:13:32,608 INFO L87 Difference]: Start difference. First operand has 231 states, 121 states have (on average 1.8760330578512396) internal successors, (227), 224 states have internal predecessors, (227), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:32,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:32,661 INFO L93 Difference]: Finished difference Result 458 states and 474 transitions. [2024-11-19 11:13:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 11:13:32,664 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 11:13:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:32,672 INFO L225 Difference]: With dead ends: 458 [2024-11-19 11:13:32,674 INFO L226 Difference]: Without dead ends: 224 [2024-11-19 11:13:32,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 11:13:32,679 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:32,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:13:32,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-19 11:13:32,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2024-11-19 11:13:32,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 116 states have (on average 1.8793103448275863) internal successors, (218), 218 states have internal predecessors, (218), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 11:13:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 226 transitions. [2024-11-19 11:13:32,716 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 226 transitions. Word has length 8 [2024-11-19 11:13:32,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:32,716 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 226 transitions. [2024-11-19 11:13:32,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:32,717 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 226 transitions. [2024-11-19 11:13:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-19 11:13:32,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:32,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:32,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 11:13:32,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:32,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:32,718 INFO L85 PathProgramCache]: Analyzing trace with hash 183838631, now seen corresponding path program 1 times [2024-11-19 11:13:32,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:32,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440198595] [2024-11-19 11:13:32,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:32,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:32,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:32,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440198595] [2024-11-19 11:13:32,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440198595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:32,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:32,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:32,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220426304] [2024-11-19 11:13:32,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:32,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:32,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:32,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:32,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:32,949 INFO L87 Difference]: Start difference. First operand 224 states and 226 transitions. Second operand has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:33,952 INFO L93 Difference]: Finished difference Result 414 states and 419 transitions. [2024-11-19 11:13:33,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:33,952 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-19 11:13:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:33,954 INFO L225 Difference]: With dead ends: 414 [2024-11-19 11:13:33,954 INFO L226 Difference]: Without dead ends: 402 [2024-11-19 11:13:33,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:33,955 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 322 mSDsluCounter, 680 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 848 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:33,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 848 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 11:13:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-11-19 11:13:33,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 273. [2024-11-19 11:13:33,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.8159509202453987) internal successors, (296), 265 states have internal predecessors, (296), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:33,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 307 transitions. [2024-11-19 11:13:33,975 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 307 transitions. Word has length 8 [2024-11-19 11:13:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:33,975 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 307 transitions. [2024-11-19 11:13:33,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:33,976 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 307 transitions. [2024-11-19 11:13:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 11:13:33,976 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:33,976 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] [2024-11-19 11:13:33,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 11:13:33,977 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_27_to_35_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:33,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:33,977 INFO L85 PathProgramCache]: Analyzing trace with hash -131476173, now seen corresponding path program 1 times [2024-11-19 11:13:33,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:33,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372349867] [2024-11-19 11:13:33,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:33,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:33,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:34,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:34,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372349867] [2024-11-19 11:13:34,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372349867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:34,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:34,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:34,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838223501] [2024-11-19 11:13:34,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:34,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:34,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:34,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:34,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:34,115 INFO L87 Difference]: Start difference. First operand 273 states and 307 transitions. Second operand has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:35,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:35,117 INFO L93 Difference]: Finished difference Result 402 states and 407 transitions. [2024-11-19 11:13:35,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:35,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-19 11:13:35,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:35,120 INFO L225 Difference]: With dead ends: 402 [2024-11-19 11:13:35,120 INFO L226 Difference]: Without dead ends: 392 [2024-11-19 11:13:35,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:35,122 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 268 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:35,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 846 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 11:13:35,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-19 11:13:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 273. [2024-11-19 11:13:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.7546012269938651) internal successors, (286), 265 states have internal predecessors, (286), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 297 transitions. [2024-11-19 11:13:35,142 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 297 transitions. Word has length 20 [2024-11-19 11:13:35,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:35,142 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 297 transitions. [2024-11-19 11:13:35,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:35,142 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 297 transitions. [2024-11-19 11:13:35,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 11:13:35,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:35,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:35,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 11:13:35,143 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_27_to_35_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:35,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:35,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1197575043, now seen corresponding path program 1 times [2024-11-19 11:13:35,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:35,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141940763] [2024-11-19 11:13:35,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:35,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:35,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [238519437] [2024-11-19 11:13:35,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:35,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:35,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:35,176 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:35,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 11:13:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:35,275 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 11:13:35,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:35,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:35,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:35,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:35,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141940763] [2024-11-19 11:13:35,452 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:35,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238519437] [2024-11-19 11:13:35,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238519437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:35,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:35,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:35,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107639826] [2024-11-19 11:13:35,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:35,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:35,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:35,454 INFO L87 Difference]: Start difference. First operand 273 states and 297 transitions. Second operand has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:36,154 INFO L93 Difference]: Finished difference Result 392 states and 397 transitions. [2024-11-19 11:13:36,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-19 11:13:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:36,155 INFO L225 Difference]: With dead ends: 392 [2024-11-19 11:13:36,155 INFO L226 Difference]: Without dead ends: 390 [2024-11-19 11:13:36,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:36,156 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 246 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:36,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1027 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 11:13:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-19 11:13:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 273. [2024-11-19 11:13:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.7423312883435582) internal successors, (284), 265 states have internal predecessors, (284), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 295 transitions. [2024-11-19 11:13:36,164 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 295 transitions. Word has length 30 [2024-11-19 11:13:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:36,164 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 295 transitions. [2024-11-19 11:13:36,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 295 transitions. [2024-11-19 11:13:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 11:13:36,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:36,165 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:36,179 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 11:13:36,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:36,370 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_27_to_35_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:36,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:36,371 INFO L85 PathProgramCache]: Analyzing trace with hash 181625535, now seen corresponding path program 1 times [2024-11-19 11:13:36,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:36,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624170009] [2024-11-19 11:13:36,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:36,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:36,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624170009] [2024-11-19 11:13:36,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624170009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:36,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:36,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:36,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179890024] [2024-11-19 11:13:36,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:36,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:36,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:36,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:36,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:36,520 INFO L87 Difference]: Start difference. First operand 273 states and 295 transitions. Second operand has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:37,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:37,322 INFO L93 Difference]: Finished difference Result 390 states and 395 transitions. [2024-11-19 11:13:37,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:37,323 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2024-11-19 11:13:37,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:37,324 INFO L225 Difference]: With dead ends: 390 [2024-11-19 11:13:37,324 INFO L226 Difference]: Without dead ends: 382 [2024-11-19 11:13:37,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:37,325 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 216 mSDsluCounter, 685 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:37,325 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 857 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 11:13:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-19 11:13:37,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 273. [2024-11-19 11:13:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6932515337423313) internal successors, (276), 265 states have internal predecessors, (276), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 287 transitions. [2024-11-19 11:13:37,332 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 287 transitions. Word has length 32 [2024-11-19 11:13:37,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:37,333 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 287 transitions. [2024-11-19 11:13:37,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:37,333 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 287 transitions. [2024-11-19 11:13:37,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-19 11:13:37,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:37,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:37,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 11:13:37,334 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_27_to_35_0Err32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:37,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:37,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1692283961, now seen corresponding path program 1 times [2024-11-19 11:13:37,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:37,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234881104] [2024-11-19 11:13:37,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:37,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383610095] [2024-11-19 11:13:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:37,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:37,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:37,365 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:37,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 11:13:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:37,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:13:37,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:37,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:38,414 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:38,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:38,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234881104] [2024-11-19 11:13:38,414 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:38,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383610095] [2024-11-19 11:13:38,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383610095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:38,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:38,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:38,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617681265] [2024-11-19 11:13:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:38,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:38,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:38,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:38,415 INFO L87 Difference]: Start difference. First operand 273 states and 287 transitions. Second operand has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:42,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:42,020 INFO L93 Difference]: Finished difference Result 382 states and 387 transitions. [2024-11-19 11:13:42,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:42,020 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-11-19 11:13:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:42,021 INFO L225 Difference]: With dead ends: 382 [2024-11-19 11:13:42,021 INFO L226 Difference]: Without dead ends: 381 [2024-11-19 11:13:42,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:42,022 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 225 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:42,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 836 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 11:13:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-19 11:13:42,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 273. [2024-11-19 11:13:42,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.687116564417178) internal successors, (275), 265 states have internal predecessors, (275), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:42,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 286 transitions. [2024-11-19 11:13:42,028 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 286 transitions. Word has length 40 [2024-11-19 11:13:42,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:42,028 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 286 transitions. [2024-11-19 11:13:42,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:42,028 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 286 transitions. [2024-11-19 11:13:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 11:13:42,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:42,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:42,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:42,229 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,SelfDestructingSolverStorable5 [2024-11-19 11:13:42,230 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_27_to_35_0Err33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:42,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:42,230 INFO L85 PathProgramCache]: Analyzing trace with hash -921195015, now seen corresponding path program 1 times [2024-11-19 11:13:42,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:42,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668992425] [2024-11-19 11:13:42,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:42,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:42,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967723721] [2024-11-19 11:13:42,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:42,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:42,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:42,260 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:42,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 11:13:42,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:42,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:13:42,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:42,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:42,626 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:42,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:42,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668992425] [2024-11-19 11:13:42,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:42,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967723721] [2024-11-19 11:13:42,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967723721] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:42,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:42,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:42,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326092224] [2024-11-19 11:13:42,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:42,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:42,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:42,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:42,628 INFO L87 Difference]: Start difference. First operand 273 states and 286 transitions. Second operand has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:46,215 INFO L93 Difference]: Finished difference Result 381 states and 386 transitions. [2024-11-19 11:13:46,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:46,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 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 41 [2024-11-19 11:13:46,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:46,222 INFO L225 Difference]: With dead ends: 381 [2024-11-19 11:13:46,222 INFO L226 Difference]: Without dead ends: 380 [2024-11-19 11:13:46,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:46,223 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 223 mSDsluCounter, 662 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:46,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 836 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-19 11:13:46,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-19 11:13:46,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2024-11-19 11:13:46,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6809815950920246) internal successors, (274), 265 states have internal predecessors, (274), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:46,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 285 transitions. [2024-11-19 11:13:46,239 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 285 transitions. Word has length 41 [2024-11-19 11:13:46,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:46,239 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 285 transitions. [2024-11-19 11:13:46,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:46,240 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 285 transitions. [2024-11-19 11:13:46,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 11:13:46,240 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:46,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:46,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:46,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:46,441 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_27_to_35_0Err34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:46,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:46,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1507725833, now seen corresponding path program 1 times [2024-11-19 11:13:46,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:46,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804756967] [2024-11-19 11:13:46,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:46,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:46,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942264320] [2024-11-19 11:13:46,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:46,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:46,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:46,464 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:46,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 11:13:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:46,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 11:13:46,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:46,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:46,595 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:46,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:46,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804756967] [2024-11-19 11:13:46,595 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:46,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942264320] [2024-11-19 11:13:46,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942264320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:46,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:46,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:46,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190434054] [2024-11-19 11:13:46,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:46,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:46,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:46,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:46,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:46,596 INFO L87 Difference]: Start difference. First operand 273 states and 285 transitions. Second operand has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:46,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:46,835 INFO L93 Difference]: Finished difference Result 380 states and 385 transitions. [2024-11-19 11:13:46,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:46,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2024-11-19 11:13:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:46,836 INFO L225 Difference]: With dead ends: 380 [2024-11-19 11:13:46,836 INFO L226 Difference]: Without dead ends: 378 [2024-11-19 11:13:46,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:46,838 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 186 mSDsluCounter, 703 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:46,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 881 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:13:46,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-19 11:13:46,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2024-11-19 11:13:46,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6687116564417177) internal successors, (272), 265 states have internal predecessors, (272), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:46,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 283 transitions. [2024-11-19 11:13:46,845 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 283 transitions. Word has length 42 [2024-11-19 11:13:46,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:46,845 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 283 transitions. [2024-11-19 11:13:46,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 283 transitions. [2024-11-19 11:13:46,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 11:13:46,846 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:46,847 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:46,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:47,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:47,051 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_27_to_35_0Err36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:47,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:47,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1520554059, now seen corresponding path program 1 times [2024-11-19 11:13:47,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:47,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415685030] [2024-11-19 11:13:47,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:47,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:47,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883265768] [2024-11-19 11:13:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:47,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:47,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:47,082 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:47,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 11:13:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:47,170 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:13:47,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:47,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:47,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:47,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:47,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:47,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415685030] [2024-11-19 11:13:47,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:47,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883265768] [2024-11-19 11:13:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883265768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:47,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558605641] [2024-11-19 11:13:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:47,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:47,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:47,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:47,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:47,836 INFO L87 Difference]: Start difference. First operand 273 states and 283 transitions. Second operand has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:52,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:52,004 INFO L93 Difference]: Finished difference Result 378 states and 383 transitions. [2024-11-19 11:13:52,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:52,005 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2024-11-19 11:13:52,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:52,006 INFO L225 Difference]: With dead ends: 378 [2024-11-19 11:13:52,006 INFO L226 Difference]: Without dead ends: 377 [2024-11-19 11:13:52,006 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:52,007 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 182 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:52,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 948 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-19 11:13:52,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-19 11:13:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 273. [2024-11-19 11:13:52,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6625766871165644) internal successors, (271), 265 states have internal predecessors, (271), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:52,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 282 transitions. [2024-11-19 11:13:52,012 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 282 transitions. Word has length 44 [2024-11-19 11:13:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:52,013 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 282 transitions. [2024-11-19 11:13:52,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 282 transitions. [2024-11-19 11:13:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-19 11:13:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:52,014 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:52,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:52,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:52,215 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_27_to_35_0Err37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:52,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:52,215 INFO L85 PathProgramCache]: Analyzing trace with hash -107464195, now seen corresponding path program 1 times [2024-11-19 11:13:52,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:52,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609407306] [2024-11-19 11:13:52,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:52,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274917221] [2024-11-19 11:13:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:52,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:52,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:52,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:52,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 11:13:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:52,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:13:52,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:52,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:52,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:52,788 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:52,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:52,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609407306] [2024-11-19 11:13:52,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:52,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274917221] [2024-11-19 11:13:52,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274917221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:52,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:52,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:52,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701059979] [2024-11-19 11:13:52,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:52,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:52,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:52,789 INFO L87 Difference]: Start difference. First operand 273 states and 282 transitions. Second operand has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:54,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:54,831 INFO L93 Difference]: Finished difference Result 377 states and 382 transitions. [2024-11-19 11:13:54,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:54,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2024-11-19 11:13:54,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:54,833 INFO L225 Difference]: With dead ends: 377 [2024-11-19 11:13:54,833 INFO L226 Difference]: Without dead ends: 376 [2024-11-19 11:13:54,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:54,834 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 179 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:54,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 832 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 11:13:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-19 11:13:54,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 273. [2024-11-19 11:13:54,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.656441717791411) internal successors, (270), 265 states have internal predecessors, (270), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:54,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 281 transitions. [2024-11-19 11:13:54,839 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 281 transitions. Word has length 45 [2024-11-19 11:13:54,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:54,840 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 281 transitions. [2024-11-19 11:13:54,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 281 transitions. [2024-11-19 11:13:54,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 11:13:54,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:54,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:54,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 11:13:55,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:55,045 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_27_to_35_0Err38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:55,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:55,046 INFO L85 PathProgramCache]: Analyzing trace with hash 963577485, now seen corresponding path program 1 times [2024-11-19 11:13:55,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:55,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240983334] [2024-11-19 11:13:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:55,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:55,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:55,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240983334] [2024-11-19 11:13:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240983334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182638593] [2024-11-19 11:13:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:55,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:55,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:55,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:55,206 INFO L87 Difference]: Start difference. First operand 273 states and 281 transitions. Second operand has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:55,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:55,349 INFO L93 Difference]: Finished difference Result 382 states and 386 transitions. [2024-11-19 11:13:55,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:55,350 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-19 11:13:55,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:55,351 INFO L225 Difference]: With dead ends: 382 [2024-11-19 11:13:55,351 INFO L226 Difference]: Without dead ends: 380 [2024-11-19 11:13:55,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:55,352 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 195 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1067 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:55,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1067 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:13:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-19 11:13:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 273. [2024-11-19 11:13:55,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6441717791411044) internal successors, (268), 265 states have internal predecessors, (268), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:55,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 279 transitions. [2024-11-19 11:13:55,357 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 279 transitions. Word has length 46 [2024-11-19 11:13:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:55,357 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 279 transitions. [2024-11-19 11:13:55,357 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 11.25) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:55,357 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 279 transitions. [2024-11-19 11:13:55,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 11:13:55,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:55,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:55,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 11:13:55,358 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_27_to_35_0Err40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:55,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:55,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1714965297, now seen corresponding path program 1 times [2024-11-19 11:13:55,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:55,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552108057] [2024-11-19 11:13:55,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:55,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:55,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:55,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552108057] [2024-11-19 11:13:55,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552108057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:55,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:55,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:55,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625140178] [2024-11-19 11:13:55,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:55,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:55,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:55,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:55,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:55,558 INFO L87 Difference]: Start difference. First operand 273 states and 279 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:57,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:57,663 INFO L93 Difference]: Finished difference Result 380 states and 384 transitions. [2024-11-19 11:13:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:57,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-19 11:13:57,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:57,667 INFO L225 Difference]: With dead ends: 380 [2024-11-19 11:13:57,667 INFO L226 Difference]: Without dead ends: 379 [2024-11-19 11:13:57,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:57,667 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 196 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:57,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1022 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 11:13:57,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-19 11:13:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 273. [2024-11-19 11:13:57,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.638036809815951) internal successors, (267), 265 states have internal predecessors, (267), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:57,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 278 transitions. [2024-11-19 11:13:57,678 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 278 transitions. Word has length 48 [2024-11-19 11:13:57,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:57,679 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 278 transitions. [2024-11-19 11:13:57,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:57,679 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 278 transitions. [2024-11-19 11:13:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 11:13:57,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:57,683 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:57,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 11:13:57,684 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_27_to_35_0Err41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:57,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1624316415, now seen corresponding path program 1 times [2024-11-19 11:13:57,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:57,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627986144] [2024-11-19 11:13:57,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:57,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:57,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:57,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:57,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627986144] [2024-11-19 11:13:57,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627986144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:57,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:57,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:57,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069015610] [2024-11-19 11:13:57,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:57,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:57,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:57,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:57,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:57,864 INFO L87 Difference]: Start difference. First operand 273 states and 278 transitions. Second operand has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:59,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:59,424 INFO L93 Difference]: Finished difference Result 379 states and 383 transitions. [2024-11-19 11:13:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:59,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-19 11:13:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:59,426 INFO L225 Difference]: With dead ends: 379 [2024-11-19 11:13:59,426 INFO L226 Difference]: Without dead ends: 378 [2024-11-19 11:13:59,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:59,427 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 188 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:59,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 995 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 11:13:59,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2024-11-19 11:13:59,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 273. [2024-11-19 11:13:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 163 states have (on average 1.6319018404907975) internal successors, (266), 265 states have internal predecessors, (266), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2024-11-19 11:13:59,455 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 49 [2024-11-19 11:13:59,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:59,455 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2024-11-19 11:13:59,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:13:59,455 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2024-11-19 11:13:59,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-19 11:13:59,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:59,456 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:59,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 11:13:59,456 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_27_to_35_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:59,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:59,457 INFO L85 PathProgramCache]: Analyzing trace with hash -630776729, now seen corresponding path program 1 times [2024-11-19 11:13:59,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:59,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784404752] [2024-11-19 11:13:59,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:59,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:59,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:59,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:59,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784404752] [2024-11-19 11:13:59,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784404752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:59,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:59,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:59,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688527578] [2024-11-19 11:13:59,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:59,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:59,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:59,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:59,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:59,627 INFO L87 Difference]: Start difference. First operand 273 states and 277 transitions. Second operand has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:59,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:59,697 INFO L93 Difference]: Finished difference Result 372 states and 376 transitions. [2024-11-19 11:13:59,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:59,698 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2024-11-19 11:13:59,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:59,699 INFO L225 Difference]: With dead ends: 372 [2024-11-19 11:13:59,699 INFO L226 Difference]: Without dead ends: 371 [2024-11-19 11:13:59,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:59,700 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 149 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:59,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1290 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:13:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-19 11:13:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2024-11-19 11:13:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 164 states have (on average 1.6280487804878048) internal successors, (267), 266 states have internal predecessors, (267), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:13:59,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 278 transitions. [2024-11-19 11:13:59,705 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 278 transitions. Word has length 57 [2024-11-19 11:13:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:59,706 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 278 transitions. [2024-11-19 11:13:59,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 278 transitions. [2024-11-19 11:13:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-19 11:13:59,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:59,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:59,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 11:13:59,707 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_27_to_35_0Err43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:13:59,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1920758131, now seen corresponding path program 1 times [2024-11-19 11:13:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054391520] [2024-11-19 11:13:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:59,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:59,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:59,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:59,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054391520] [2024-11-19 11:13:59,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054391520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:59,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:59,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:59,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900848190] [2024-11-19 11:13:59,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:59,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:59,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:59,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:59,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:59,947 INFO L87 Difference]: Start difference. First operand 274 states and 278 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:00,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:00,042 INFO L93 Difference]: Finished difference Result 274 states and 278 transitions. [2024-11-19 11:14:00,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:14:00,042 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2024-11-19 11:14:00,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:00,044 INFO L225 Difference]: With dead ends: 274 [2024-11-19 11:14:00,044 INFO L226 Difference]: Without dead ends: 273 [2024-11-19 11:14:00,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:00,045 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 275 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:00,045 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 959 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:14:00,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-19 11:14:00,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-19 11:14:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 164 states have (on average 1.6219512195121952) internal successors, (266), 265 states have internal predecessors, (266), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:14:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 277 transitions. [2024-11-19 11:14:00,052 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 277 transitions. Word has length 58 [2024-11-19 11:14:00,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:00,052 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 277 transitions. [2024-11-19 11:14:00,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:00,053 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 277 transitions. [2024-11-19 11:14:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 11:14:00,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:00,053 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:00,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 11:14:00,054 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_27_to_35_0Err44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:00,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:00,054 INFO L85 PathProgramCache]: Analyzing trace with hash -586039831, now seen corresponding path program 1 times [2024-11-19 11:14:00,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:00,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792608151] [2024-11-19 11:14:00,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:00,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:00,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:00,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:00,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792608151] [2024-11-19 11:14:00,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792608151] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:00,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:00,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:14:00,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080327688] [2024-11-19 11:14:00,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:00,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:14:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:14:00,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:14:00,212 INFO L87 Difference]: Start difference. First operand 273 states and 277 transitions. Second operand has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:00,351 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2024-11-19 11:14:00,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:14:00,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2024-11-19 11:14:00,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:00,353 INFO L225 Difference]: With dead ends: 369 [2024-11-19 11:14:00,353 INFO L226 Difference]: Without dead ends: 367 [2024-11-19 11:14:00,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:14:00,353 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 145 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:00,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 904 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:14:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2024-11-19 11:14:00,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 276. [2024-11-19 11:14:00,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 167 states have (on average 1.6107784431137724) internal successors, (269), 268 states have internal predecessors, (269), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-19 11:14:00,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 280 transitions. [2024-11-19 11:14:00,363 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 280 transitions. Word has length 59 [2024-11-19 11:14:00,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:00,363 INFO L471 AbstractCegarLoop]: Abstraction has 276 states and 280 transitions. [2024-11-19 11:14:00,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:00,363 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 280 transitions. [2024-11-19 11:14:00,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 11:14:00,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:00,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:00,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 11:14:00,364 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:00,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:00,365 INFO L85 PathProgramCache]: Analyzing trace with hash -987342284, now seen corresponding path program 1 times [2024-11-19 11:14:00,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:00,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031321968] [2024-11-19 11:14:00,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:00,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:00,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:00,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:00,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031321968] [2024-11-19 11:14:00,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031321968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:00,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:00,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:14:00,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296825319] [2024-11-19 11:14:00,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:00,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:14:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:00,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:14:00,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:14:00,455 INFO L87 Difference]: Start difference. First operand 276 states and 280 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:14:01,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:01,309 INFO L93 Difference]: Finished difference Result 369 states and 374 transitions. [2024-11-19 11:14:01,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:14:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2024-11-19 11:14:01,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:01,311 INFO L225 Difference]: With dead ends: 369 [2024-11-19 11:14:01,311 INFO L226 Difference]: Without dead ends: 357 [2024-11-19 11:14:01,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:14:01,311 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 193 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:01,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 570 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 11:14:01,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-11-19 11:14:01,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 291. [2024-11-19 11:14:01,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 181 states have (on average 1.5635359116022098) internal successors, (283), 281 states have internal predecessors, (283), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-19 11:14:01,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 295 transitions. [2024-11-19 11:14:01,318 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 295 transitions. Word has length 60 [2024-11-19 11:14:01,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:01,318 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 295 transitions. [2024-11-19 11:14:01,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:14:01,318 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 295 transitions. [2024-11-19 11:14:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 11:14:01,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:01,319 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:01,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 11:14:01,319 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_27_to_35_0Err46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:01,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:01,319 INFO L85 PathProgramCache]: Analyzing trace with hash -543553685, now seen corresponding path program 1 times [2024-11-19 11:14:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:01,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419870104] [2024-11-19 11:14:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:01,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1612926981] [2024-11-19 11:14:01,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:01,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:01,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:01,341 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:01,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 11:14:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:01,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 11:14:01,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:01,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:01,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:01,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:01,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:01,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419870104] [2024-11-19 11:14:01,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:01,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612926981] [2024-11-19 11:14:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612926981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:01,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:01,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:14:01,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078846912] [2024-11-19 11:14:01,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:01,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:14:01,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:01,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:14:01,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:14:01,575 INFO L87 Difference]: Start difference. First operand 291 states and 295 transitions. Second operand has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:01,995 INFO L93 Difference]: Finished difference Result 376 states and 388 transitions. [2024-11-19 11:14:01,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:14:01,995 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2024-11-19 11:14:01,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:01,997 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:01,998 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:01,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:01,998 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 221 mSDsluCounter, 854 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:01,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 1019 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:14:01,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 327. [2024-11-19 11:14:02,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 215 states have (on average 1.613953488372093) internal successors, (347), 316 states have internal predecessors, (347), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:02,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 361 transitions. [2024-11-19 11:14:02,008 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 361 transitions. Word has length 61 [2024-11-19 11:14:02,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:02,008 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 361 transitions. [2024-11-19 11:14:02,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 361 transitions. [2024-11-19 11:14:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-19 11:14:02,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:02,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:02,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 11:14:02,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:02,214 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_27_to_35_0Err47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:02,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:02,215 INFO L85 PathProgramCache]: Analyzing trace with hash 329705207, now seen corresponding path program 1 times [2024-11-19 11:14:02,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:02,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117598349] [2024-11-19 11:14:02,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:02,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:02,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081060730] [2024-11-19 11:14:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:02,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:02,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:02,246 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:02,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 11:14:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:02,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-19 11:14:02,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:02,339 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:02,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:02,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:02,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117598349] [2024-11-19 11:14:02,444 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:02,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081060730] [2024-11-19 11:14:02,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081060730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:02,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:02,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:14:02,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139070229] [2024-11-19 11:14:02,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:02,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:14:02,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:02,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:14:02,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:14:02,446 INFO L87 Difference]: Start difference. First operand 327 states and 361 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:02,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:02,871 INFO L93 Difference]: Finished difference Result 376 states and 387 transitions. [2024-11-19 11:14:02,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:14:02,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2024-11-19 11:14:02,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:02,874 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:02,874 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:02,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:02,874 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 142 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:02,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 923 Invalid, 341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:14:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 328. [2024-11-19 11:14:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 216 states have (on average 1.6111111111111112) internal successors, (348), 317 states have internal predecessors, (348), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 362 transitions. [2024-11-19 11:14:02,882 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 362 transitions. Word has length 62 [2024-11-19 11:14:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:02,882 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 362 transitions. [2024-11-19 11:14:02,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 7 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:02,883 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 362 transitions. [2024-11-19 11:14:02,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-19 11:14:02,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:02,883 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:02,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-19 11:14:03,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:03,089 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_27_to_35_0Err48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:03,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:03,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1630927085, now seen corresponding path program 1 times [2024-11-19 11:14:03,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:03,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629196472] [2024-11-19 11:14:03,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:03,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:03,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1719255876] [2024-11-19 11:14:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:03,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:03,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:03,115 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:03,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 11:14:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:03,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-19 11:14:03,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:03,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:03,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:03,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-19 11:14:03,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:03,351 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:03,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:03,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629196472] [2024-11-19 11:14:03,351 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:03,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719255876] [2024-11-19 11:14:03,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719255876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:03,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:03,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 11:14:03,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762011970] [2024-11-19 11:14:03,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:03,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:14:03,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:03,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:14:03,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:14:03,353 INFO L87 Difference]: Start difference. First operand 328 states and 362 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:03,773 INFO L93 Difference]: Finished difference Result 376 states and 386 transitions. [2024-11-19 11:14:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:14:03,774 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2024-11-19 11:14:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:03,775 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:03,775 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:03,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:14:03,776 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 227 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:03,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 962 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:14:03,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:03,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 329. [2024-11-19 11:14:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 217 states have (on average 1.608294930875576) internal successors, (349), 318 states have internal predecessors, (349), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 363 transitions. [2024-11-19 11:14:03,784 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 363 transitions. Word has length 63 [2024-11-19 11:14:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:03,784 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 363 transitions. [2024-11-19 11:14:03,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 363 transitions. [2024-11-19 11:14:03,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 11:14:03,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:03,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:03,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-19 11:14:03,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:03,989 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_27_to_35_0Err49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:03,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:03,989 INFO L85 PathProgramCache]: Analyzing trace with hash -980867655, now seen corresponding path program 1 times [2024-11-19 11:14:03,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:03,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027939623] [2024-11-19 11:14:03,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:03,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:04,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060189254] [2024-11-19 11:14:04,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:04,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:04,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:04,008 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:04,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 11:14:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:04,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-19 11:14:04,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:04,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:04,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:04,220 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:04,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:04,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027939623] [2024-11-19 11:14:04,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:04,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060189254] [2024-11-19 11:14:04,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060189254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:04,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:04,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 11:14:04,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75638781] [2024-11-19 11:14:04,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:04,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:14:04,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:04,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:14:04,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:14:04,222 INFO L87 Difference]: Start difference. First operand 329 states and 363 transitions. Second operand has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:04,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:04,715 INFO L93 Difference]: Finished difference Result 376 states and 385 transitions. [2024-11-19 11:14:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 11:14:04,716 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2024-11-19 11:14:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:04,717 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:04,717 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:04,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:14:04,718 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 148 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 1220 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:04,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 1220 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:14:04,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:04,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 330. [2024-11-19 11:14:04,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 218 states have (on average 1.6055045871559632) internal successors, (350), 319 states have internal predecessors, (350), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:04,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 364 transitions. [2024-11-19 11:14:04,724 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 364 transitions. Word has length 64 [2024-11-19 11:14:04,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:04,725 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 364 transitions. [2024-11-19 11:14:04,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:04,725 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 364 transitions. [2024-11-19 11:14:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-19 11:14:04,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:04,725 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:04,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-19 11:14:04,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 11:14:04,930 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_27_to_35_0Err50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:04,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:04,930 INFO L85 PathProgramCache]: Analyzing trace with hash -342125969, now seen corresponding path program 1 times [2024-11-19 11:14:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:04,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836633723] [2024-11-19 11:14:04,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:04,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835304923] [2024-11-19 11:14:04,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:04,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:04,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:04,953 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:04,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 11:14:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:05,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-19 11:14:05,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:05,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:05,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:05,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-19 11:14:05,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:05,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:05,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836633723] [2024-11-19 11:14:05,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:05,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835304923] [2024-11-19 11:14:05,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835304923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:05,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:05,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 11:14:05,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707023217] [2024-11-19 11:14:05,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:05,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 11:14:05,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:05,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 11:14:05,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:05,197 INFO L87 Difference]: Start difference. First operand 330 states and 364 transitions. Second operand has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:05,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:05,586 INFO L93 Difference]: Finished difference Result 376 states and 384 transitions. [2024-11-19 11:14:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:14:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2024-11-19 11:14:05,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:05,589 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:05,589 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:05,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:14:05,590 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 231 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:05,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 867 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:14:05,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:05,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 331. [2024-11-19 11:14:05,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 219 states have (on average 1.6027397260273972) internal successors, (351), 320 states have internal predecessors, (351), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 365 transitions. [2024-11-19 11:14:05,600 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 365 transitions. Word has length 65 [2024-11-19 11:14:05,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:05,600 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 365 transitions. [2024-11-19 11:14:05,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.75) internal successors, (62), 9 states have internal predecessors, (62), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:05,601 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 365 transitions. [2024-11-19 11:14:05,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 11:14:05,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:05,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:05,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 11:14:05,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 11:14:05,806 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_27_to_35_0Err51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:05,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:05,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2015970181, now seen corresponding path program 1 times [2024-11-19 11:14:05,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:05,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926944608] [2024-11-19 11:14:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:05,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:05,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1629190138] [2024-11-19 11:14:05,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:05,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:05,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:05,830 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:05,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 11:14:05,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:05,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-19 11:14:05,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:05,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:06,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:06,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:06,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:06,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926944608] [2024-11-19 11:14:06,101 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:06,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1629190138] [2024-11-19 11:14:06,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1629190138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:06,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:06,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 11:14:06,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928794165] [2024-11-19 11:14:06,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:06,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 11:14:06,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:06,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 11:14:06,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:06,102 INFO L87 Difference]: Start difference. First operand 331 states and 365 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:06,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:06,579 INFO L93 Difference]: Finished difference Result 376 states and 383 transitions. [2024-11-19 11:14:06,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:14:06,580 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2024-11-19 11:14:06,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:06,583 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:06,583 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:06,584 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:14:06,585 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 150 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 1099 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:06,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 1099 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 11:14:06,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 332. [2024-11-19 11:14:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 220 states have (on average 1.6) internal successors, (352), 321 states have internal predecessors, (352), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 366 transitions. [2024-11-19 11:14:06,591 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 366 transitions. Word has length 66 [2024-11-19 11:14:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:06,591 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 366 transitions. [2024-11-19 11:14:06,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 9 states have internal predecessors, (63), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 366 transitions. [2024-11-19 11:14:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 11:14:06,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:06,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:06,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 11:14:06,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-19 11:14:06,796 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_27_to_35_0Err52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:06,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:06,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1929434097, now seen corresponding path program 1 times [2024-11-19 11:14:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:06,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840842599] [2024-11-19 11:14:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:06,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:06,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [385506278] [2024-11-19 11:14:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:06,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:06,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:06,819 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:06,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 11:14:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:06,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-19 11:14:06,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:06,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:07,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:07,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2024-11-19 11:14:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:07,108 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:07,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840842599] [2024-11-19 11:14:07,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:07,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385506278] [2024-11-19 11:14:07,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [385506278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:07,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:07,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 11:14:07,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097827717] [2024-11-19 11:14:07,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:07,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 11:14:07,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:07,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 11:14:07,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 11:14:07,110 INFO L87 Difference]: Start difference. First operand 332 states and 366 transitions. Second operand has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:07,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:07,655 INFO L93 Difference]: Finished difference Result 376 states and 382 transitions. [2024-11-19 11:14:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 11:14:07,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2024-11-19 11:14:07,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:07,657 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:07,657 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:07,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-19 11:14:07,657 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 145 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1365 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:07,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1365 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:14:07,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 333. [2024-11-19 11:14:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 221 states have (on average 1.5972850678733033) internal successors, (353), 322 states have internal predecessors, (353), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 367 transitions. [2024-11-19 11:14:07,667 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 367 transitions. Word has length 67 [2024-11-19 11:14:07,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:07,667 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 367 transitions. [2024-11-19 11:14:07,668 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 367 transitions. [2024-11-19 11:14:07,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 11:14:07,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:07,668 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:07,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 11:14:07,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-19 11:14:07,869 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting func_to_recursive_line_27_to_35_0Err53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:07,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -317084867, now seen corresponding path program 1 times [2024-11-19 11:14:07,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:07,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738129880] [2024-11-19 11:14:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:07,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546596605] [2024-11-19 11:14:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:07,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:07,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:07,895 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:07,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 11:14:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:07,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 11:14:07,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:07,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:08,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:08,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:08,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:08,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738129880] [2024-11-19 11:14:08,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:08,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546596605] [2024-11-19 11:14:08,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546596605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:08,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:08,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 11:14:08,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268862689] [2024-11-19 11:14:08,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:08,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 11:14:08,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:08,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 11:14:08,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-19 11:14:08,161 INFO L87 Difference]: Start difference. First operand 333 states and 367 transitions. Second operand has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:08,775 INFO L93 Difference]: Finished difference Result 376 states and 381 transitions. [2024-11-19 11:14:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 11:14:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-19 11:14:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:08,777 INFO L225 Difference]: With dead ends: 376 [2024-11-19 11:14:08,777 INFO L226 Difference]: Without dead ends: 375 [2024-11-19 11:14:08,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-19 11:14:08,778 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 224 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 1033 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:08,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 1033 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 11:14:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-19 11:14:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 334. [2024-11-19 11:14:08,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 222 states have (on average 1.5945945945945945) internal successors, (354), 323 states have internal predecessors, (354), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 368 transitions. [2024-11-19 11:14:08,787 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 368 transitions. Word has length 68 [2024-11-19 11:14:08,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:08,787 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 368 transitions. [2024-11-19 11:14:08,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:08,788 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 368 transitions. [2024-11-19 11:14:08,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 11:14:08,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:08,788 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:08,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 11:14:08,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:08,989 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting func_to_recursive_line_27_to_35_0Err54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:08,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1239696013, now seen corresponding path program 1 times [2024-11-19 11:14:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:08,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943854087] [2024-11-19 11:14:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:08,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:09,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:09,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:09,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943854087] [2024-11-19 11:14:09,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943854087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:09,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:09,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:14:09,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407318585] [2024-11-19 11:14:09,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:09,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:14:09,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:14:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:14:09,153 INFO L87 Difference]: Start difference. First operand 334 states and 368 transitions. Second operand has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:10,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:10,830 INFO L93 Difference]: Finished difference Result 364 states and 372 transitions. [2024-11-19 11:14:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:14:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 69 [2024-11-19 11:14:10,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:10,832 INFO L225 Difference]: With dead ends: 364 [2024-11-19 11:14:10,832 INFO L226 Difference]: Without dead ends: 363 [2024-11-19 11:14:10,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:14:10,833 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 132 mSDsluCounter, 1039 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1256 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:10,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 1256 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 11:14:10,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-19 11:14:10,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 335. [2024-11-19 11:14:10,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 223 states have (on average 1.5919282511210762) internal successors, (355), 324 states have internal predecessors, (355), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 369 transitions. [2024-11-19 11:14:10,841 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 369 transitions. Word has length 69 [2024-11-19 11:14:10,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:10,841 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 369 transitions. [2024-11-19 11:14:10,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 13.2) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:10,841 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 369 transitions. [2024-11-19 11:14:10,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 11:14:10,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:10,842 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:10,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-19 11:14:10,842 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_27_to_35_0Err55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:10,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:10,842 INFO L85 PathProgramCache]: Analyzing trace with hash 224129535, now seen corresponding path program 1 times [2024-11-19 11:14:10,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:10,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992187823] [2024-11-19 11:14:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:10,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:11,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:11,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992187823] [2024-11-19 11:14:11,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992187823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:11,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:11,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:14:11,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164291308] [2024-11-19 11:14:11,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:11,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:14:11,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:11,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:14:11,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:14:11,056 INFO L87 Difference]: Start difference. First operand 335 states and 369 transitions. Second operand has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:11,411 INFO L93 Difference]: Finished difference Result 363 states and 371 transitions. [2024-11-19 11:14:11,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:14:11,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2024-11-19 11:14:11,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:11,412 INFO L225 Difference]: With dead ends: 363 [2024-11-19 11:14:11,412 INFO L226 Difference]: Without dead ends: 362 [2024-11-19 11:14:11,413 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:14:11,413 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 129 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:11,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1062 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:14:11,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2024-11-19 11:14:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 336. [2024-11-19 11:14:11,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 224 states have (on average 1.5892857142857142) internal successors, (356), 325 states have internal predecessors, (356), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:11,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 370 transitions. [2024-11-19 11:14:11,424 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 370 transitions. Word has length 70 [2024-11-19 11:14:11,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:11,424 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 370 transitions. [2024-11-19 11:14:11,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:11,424 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 370 transitions. [2024-11-19 11:14:11,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-19 11:14:11,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:11,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:11,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-19 11:14:11,425 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:11,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:11,425 INFO L85 PathProgramCache]: Analyzing trace with hash -22434304, now seen corresponding path program 1 times [2024-11-19 11:14:11,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:11,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946830530] [2024-11-19 11:14:11,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:11,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:11,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:11,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:11,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946830530] [2024-11-19 11:14:11,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946830530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:11,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:14:11,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 11:14:11,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603501892] [2024-11-19 11:14:11,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:11,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 11:14:11,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:11,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 11:14:11,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 11:14:11,512 INFO L87 Difference]: Start difference. First operand 336 states and 370 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:14:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:12,015 INFO L93 Difference]: Finished difference Result 371 states and 375 transitions. [2024-11-19 11:14:12,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 11:14:12,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2024-11-19 11:14:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:12,017 INFO L225 Difference]: With dead ends: 371 [2024-11-19 11:14:12,017 INFO L226 Difference]: Without dead ends: 361 [2024-11-19 11:14:12,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:14:12,017 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 149 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:12,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 568 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:14:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-19 11:14:12,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 336. [2024-11-19 11:14:12,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 224 states have (on average 1.5446428571428572) internal successors, (346), 325 states have internal predecessors, (346), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:12,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 360 transitions. [2024-11-19 11:14:12,023 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 360 transitions. Word has length 72 [2024-11-19 11:14:12,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:12,024 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 360 transitions. [2024-11-19 11:14:12,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:14:12,024 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 360 transitions. [2024-11-19 11:14:12,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 11:14:12,024 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:12,025 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:12,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-19 11:14:12,025 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting func_to_recursive_line_27_to_35_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:12,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:12,025 INFO L85 PathProgramCache]: Analyzing trace with hash 982128442, now seen corresponding path program 1 times [2024-11-19 11:14:12,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:12,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262781243] [2024-11-19 11:14:12,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:12,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:12,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:12,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:12,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262781243] [2024-11-19 11:14:12,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262781243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:12,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271366694] [2024-11-19 11:14:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:12,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:12,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:12,264 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:12,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 11:14:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:12,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:14:12,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:12,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-19 11:14:12,510 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:14:12,521 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:12,521 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:14:12,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271366694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:14:12,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:12,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2024-11-19 11:14:12,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127835721] [2024-11-19 11:14:12,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:14:12,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:14:12,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:12,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:14:12,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-19 11:14:12,523 INFO L87 Difference]: Start difference. First operand 336 states and 360 transitions. Second operand has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:16,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-19 11:14:22,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-19 11:14:22,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:22,278 INFO L93 Difference]: Finished difference Result 339 states and 367 transitions. [2024-11-19 11:14:22,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 11:14:22,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2024-11-19 11:14:22,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:22,279 INFO L225 Difference]: With dead ends: 339 [2024-11-19 11:14:22,280 INFO L226 Difference]: Without dead ends: 337 [2024-11-19 11:14:22,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2024-11-19 11:14:22,280 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 437 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:22,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 763 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 545 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2024-11-19 11:14:22,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-19 11:14:22,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 334. [2024-11-19 11:14:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 224 states have (on average 1.5357142857142858) internal successors, (344), 323 states have internal predecessors, (344), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 358 transitions. [2024-11-19 11:14:22,286 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 358 transitions. Word has length 74 [2024-11-19 11:14:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:22,287 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 358 transitions. [2024-11-19 11:14:22,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 358 transitions. [2024-11-19 11:14:22,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-19 11:14:22,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:22,287 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:22,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 11:14:22,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 11:14:22,488 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting func_to_recursive_line_27_to_35_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:22,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:22,488 INFO L85 PathProgramCache]: Analyzing trace with hash 381210790, now seen corresponding path program 1 times [2024-11-19 11:14:22,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:22,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782714573] [2024-11-19 11:14:22,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:22,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:22,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:22,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782714573] [2024-11-19 11:14:22,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782714573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:22,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424657825] [2024-11-19 11:14:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:22,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:22,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:22,741 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:22,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 11:14:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:22,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-19 11:14:22,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:22,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 15 [2024-11-19 11:14:23,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:14:23,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:23,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:23,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:23,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424657825] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:14:23,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 11:14:23,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2024-11-19 11:14:23,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473598828] [2024-11-19 11:14:23,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:23,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 11:14:23,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:23,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 11:14:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-19 11:14:23,189 INFO L87 Difference]: Start difference. First operand 334 states and 358 transitions. Second operand has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 11:14:25,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:25,099 INFO L93 Difference]: Finished difference Result 362 states and 370 transitions. [2024-11-19 11:14:25,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:14:25,099 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 75 [2024-11-19 11:14:25,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:25,100 INFO L225 Difference]: With dead ends: 362 [2024-11-19 11:14:25,100 INFO L226 Difference]: Without dead ends: 360 [2024-11-19 11:14:25,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 137 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-11-19 11:14:25,101 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 1135 mSDsluCounter, 1318 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1136 SdHoareTripleChecker+Valid, 1494 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:25,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1136 Valid, 1494 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 11:14:25,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-19 11:14:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 332. [2024-11-19 11:14:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 224 states have (on average 1.5267857142857142) internal successors, (342), 321 states have internal predecessors, (342), 6 states have call successors, (6), 4 states have call predecessors, (6), 5 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-19 11:14:25,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 356 transitions. [2024-11-19 11:14:25,108 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 356 transitions. Word has length 75 [2024-11-19 11:14:25,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:25,108 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 356 transitions. [2024-11-19 11:14:25,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 10.631578947368421) internal successors, (202), 17 states have internal predecessors, (202), 7 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 11:14:25,108 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 356 transitions. [2024-11-19 11:14:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-19 11:14:25,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:25,109 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:25,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 11:14:25,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:25,314 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting func_to_recursive_line_27_to_35_0Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:25,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:25,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1067367236, now seen corresponding path program 1 times [2024-11-19 11:14:25,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:25,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976668354] [2024-11-19 11:14:25,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:25,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:25,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:25,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542530018] [2024-11-19 11:14:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:25,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:25,339 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:25,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 11:14:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:25,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-19 11:14:25,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:25,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:25,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:25,704 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:25,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:33,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:33,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976668354] [2024-11-19 11:14:33,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:33,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542530018] [2024-11-19 11:14:33,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542530018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:33,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:33,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-19 11:14:33,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446388382] [2024-11-19 11:14:33,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:33,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 11:14:33,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:33,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 11:14:33,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=284, Unknown=2, NotChecked=0, Total=342 [2024-11-19 11:14:33,495 INFO L87 Difference]: Start difference. First operand 332 states and 356 transitions. Second operand has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:34,814 INFO L93 Difference]: Finished difference Result 458 states and 464 transitions. [2024-11-19 11:14:34,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:14:34,815 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2024-11-19 11:14:34,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:34,816 INFO L225 Difference]: With dead ends: 458 [2024-11-19 11:14:34,816 INFO L226 Difference]: Without dead ends: 457 [2024-11-19 11:14:34,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=105, Invalid=445, Unknown=2, NotChecked=0, Total=552 [2024-11-19 11:14:34,817 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 366 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:34,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1855 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 11:14:34,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2024-11-19 11:14:34,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 384. [2024-11-19 11:14:34,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5808823529411764) internal successors, (430), 370 states have internal predecessors, (430), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 11:14:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 450 transitions. [2024-11-19 11:14:34,824 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 450 transitions. Word has length 76 [2024-11-19 11:14:34,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:34,825 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 450 transitions. [2024-11-19 11:14:34,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:34,825 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 450 transitions. [2024-11-19 11:14:34,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-19 11:14:34,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:34,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:34,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-19 11:14:35,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:35,030 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting func_to_recursive_line_27_to_35_0Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:35,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:35,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1271354216, now seen corresponding path program 1 times [2024-11-19 11:14:35,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:35,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431172533] [2024-11-19 11:14:35,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:35,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:35,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1003822328] [2024-11-19 11:14:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:35,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:35,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:35,053 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:35,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 11:14:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:35,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 11:14:35,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:35,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:35,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:35,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-19 11:14:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:35,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431172533] [2024-11-19 11:14:36,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003822328] [2024-11-19 11:14:36,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003822328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:36,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:36,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-19 11:14:36,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40338090] [2024-11-19 11:14:36,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:36,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-19 11:14:36,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:36,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-19 11:14:36,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:14:36,142 INFO L87 Difference]: Start difference. First operand 384 states and 450 transitions. Second operand has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:37,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:37,211 INFO L93 Difference]: Finished difference Result 457 states and 463 transitions. [2024-11-19 11:14:37,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 11:14:37,212 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 77 [2024-11-19 11:14:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:37,213 INFO L225 Difference]: With dead ends: 457 [2024-11-19 11:14:37,213 INFO L226 Difference]: Without dead ends: 456 [2024-11-19 11:14:37,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 83 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-19 11:14:37,214 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 363 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:37,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1435 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 11:14:37,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-19 11:14:37,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 384. [2024-11-19 11:14:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5772058823529411) internal successors, (429), 370 states have internal predecessors, (429), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 11:14:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 449 transitions. [2024-11-19 11:14:37,222 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 449 transitions. Word has length 77 [2024-11-19 11:14:37,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:37,222 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 449 transitions. [2024-11-19 11:14:37,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:37,222 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 449 transitions. [2024-11-19 11:14:37,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 11:14:37,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:37,223 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:37,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-19 11:14:37,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:37,426 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting func_to_recursive_line_27_to_35_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:37,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 757275198, now seen corresponding path program 1 times [2024-11-19 11:14:37,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:37,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890790343] [2024-11-19 11:14:37,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:37,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:37,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878294] [2024-11-19 11:14:37,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:37,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:37,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:37,461 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:37,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 11:14:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:37,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-19 11:14:37,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:37,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:37,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:37,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:38,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:38,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890790343] [2024-11-19 11:14:38,475 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:38,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878294] [2024-11-19 11:14:38,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:38,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:38,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-19 11:14:38,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94822748] [2024-11-19 11:14:38,476 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:38,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-19 11:14:38,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:38,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-19 11:14:38,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-19 11:14:38,477 INFO L87 Difference]: Start difference. First operand 384 states and 449 transitions. Second operand has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:39,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:39,639 INFO L93 Difference]: Finished difference Result 456 states and 462 transitions. [2024-11-19 11:14:39,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:14:39,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2024-11-19 11:14:39,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:39,640 INFO L225 Difference]: With dead ends: 456 [2024-11-19 11:14:39,641 INFO L226 Difference]: Without dead ends: 455 [2024-11-19 11:14:39,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-19 11:14:39,641 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 549 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:39,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [550 Valid, 1278 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 11:14:39,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-19 11:14:39,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 384. [2024-11-19 11:14:39,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5735294117647058) internal successors, (428), 370 states have internal predecessors, (428), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 11:14:39,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 448 transitions. [2024-11-19 11:14:39,650 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 448 transitions. Word has length 78 [2024-11-19 11:14:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:39,650 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 448 transitions. [2024-11-19 11:14:39,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 states have internal predecessors, (74), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 448 transitions. [2024-11-19 11:14:39,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-19 11:14:39,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:39,651 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:39,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 11:14:39,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:39,856 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting func_to_recursive_line_27_to_35_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:39,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2000694826, now seen corresponding path program 1 times [2024-11-19 11:14:39,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:39,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401589878] [2024-11-19 11:14:39,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:39,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:39,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130696185] [2024-11-19 11:14:39,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:39,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:39,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:39,879 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:39,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 11:14:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:40,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-19 11:14:40,003 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:40,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:40,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:40,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-11-19 11:14:40,176 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:40,176 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:54,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:54,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401589878] [2024-11-19 11:14:54,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:54,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130696185] [2024-11-19 11:14:54,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130696185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:54,115 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:54,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-19 11:14:54,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121565139] [2024-11-19 11:14:54,116 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:54,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 11:14:54,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:54,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 11:14:54,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=308, Unknown=3, NotChecked=0, Total=380 [2024-11-19 11:14:54,116 INFO L87 Difference]: Start difference. First operand 384 states and 448 transitions. Second operand has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:55,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:55,307 INFO L93 Difference]: Finished difference Result 455 states and 461 transitions. [2024-11-19 11:14:55,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 11:14:55,308 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 79 [2024-11-19 11:14:55,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:55,309 INFO L225 Difference]: With dead ends: 455 [2024-11-19 11:14:55,309 INFO L226 Difference]: Without dead ends: 454 [2024-11-19 11:14:55,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 85 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=140, Invalid=507, Unknown=3, NotChecked=0, Total=650 [2024-11-19 11:14:55,310 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 547 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 1170 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:55,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 1170 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 11:14:55,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-19 11:14:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 384. [2024-11-19 11:14:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5698529411764706) internal successors, (427), 370 states have internal predecessors, (427), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 11:14:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 447 transitions. [2024-11-19 11:14:55,317 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 447 transitions. Word has length 79 [2024-11-19 11:14:55,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:55,318 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 447 transitions. [2024-11-19 11:14:55,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.5) internal successors, (75), 10 states have internal predecessors, (75), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:55,318 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 447 transitions. [2024-11-19 11:14:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-19 11:14:55,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:55,318 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:55,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-19 11:14:55,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-19 11:14:55,523 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting func_to_recursive_line_27_to_35_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:55,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:55,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1891997632, now seen corresponding path program 1 times [2024-11-19 11:14:55,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:55,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097258289] [2024-11-19 11:14:55,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:55,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:55,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1301450122] [2024-11-19 11:14:55,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:55,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:55,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:55,554 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:55,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 11:14:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:55,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-19 11:14:55,691 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:55,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:55,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2024-11-19 11:14:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:55,919 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:14:56,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:14:56,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097258289] [2024-11-19 11:14:56,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:14:56,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301450122] [2024-11-19 11:14:56,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301450122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 11:14:56,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 11:14:56,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-19 11:14:56,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219854496] [2024-11-19 11:14:56,379 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 11:14:56,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 11:14:56,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:14:56,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 11:14:56,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:14:56,380 INFO L87 Difference]: Start difference. First operand 384 states and 447 transitions. Second operand has 15 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:57,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:14:57,474 INFO L93 Difference]: Finished difference Result 454 states and 460 transitions. [2024-11-19 11:14:57,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 11:14:57,474 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 80 [2024-11-19 11:14:57,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:14:57,476 INFO L225 Difference]: With dead ends: 454 [2024-11-19 11:14:57,476 INFO L226 Difference]: Without dead ends: 453 [2024-11-19 11:14:57,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2024-11-19 11:14:57,477 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 409 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:14:57,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 1738 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 11:14:57,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-11-19 11:14:57,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 384. [2024-11-19 11:14:57,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 272 states have (on average 1.5661764705882353) internal successors, (426), 370 states have internal predecessors, (426), 8 states have call successors, (8), 5 states have call predecessors, (8), 7 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-19 11:14:57,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 446 transitions. [2024-11-19 11:14:57,484 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 446 transitions. Word has length 80 [2024-11-19 11:14:57,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:14:57,485 INFO L471 AbstractCegarLoop]: Abstraction has 384 states and 446 transitions. [2024-11-19 11:14:57,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.846153846153846) internal successors, (76), 12 states have internal predecessors, (76), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:14:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 446 transitions. [2024-11-19 11:14:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-19 11:14:57,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:14:57,485 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:14:57,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-19 11:14:57,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-19 11:14:57,686 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting func_to_recursive_line_27_to_35_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 99 more)] === [2024-11-19 11:14:57,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:14:57,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1477615380, now seen corresponding path program 1 times [2024-11-19 11:14:57,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:14:57,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553811532] [2024-11-19 11:14:57,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:57,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:14:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:14:57,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357114781] [2024-11-19 11:14:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:14:57,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:14:57,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:14:57,719 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:14:57,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 11:14:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:14:57,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 11:14:57,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:14:57,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:14:57,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-19 11:14:58,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 16 [2024-11-19 11:14:58,080 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:14:58,080 INFO L311 TraceCheckSpWp]: Computing backward predicates...