./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 12:15:44,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 12:15:44,562 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 12:15:44,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 12:15:44,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 12:15:44,601 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 12:15:44,602 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 12:15:44,602 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 12:15:44,603 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 12:15:44,604 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 12:15:44,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 12:15:44,605 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 12:15:44,606 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 12:15:44,606 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 12:15:44,606 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 12:15:44,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 12:15:44,609 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 12:15:44,610 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 12:15:44,610 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 12:15:44,610 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 12:15:44,610 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 12:15:44,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 12:15:44,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 12:15:44,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 12:15:44,616 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 12:15:44,617 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 12:15:44,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 12:15:44,617 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 12:15:44,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 12:15:44,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 12:15:44,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 12:15:44,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 12:15:44,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 12:15:44,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 12:15:44,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:15:44,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 12:15:44,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 12:15:44,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 12:15:44,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 12:15:44,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 12:15:44,625 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 12:15:44,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 12:15:44,626 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 12:15:44,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 12:15:44,626 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 260777f6a7be1f16cc330a008300c11ebdea8f1cf9d8e96a0325274fd8fd5b2a [2024-11-09 12:15:44,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 12:15:44,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 12:15:44,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 12:15:44,950 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 12:15:44,953 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 12:15:44,954 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2024-11-09 12:15:46,518 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 12:15:46,699 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 12:15:46,700 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_cohencu-ll.c [2024-11-09 12:15:46,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a9320ef/dcd20317320e495cadd871302a485e87/FLAG2cf22c602 [2024-11-09 12:15:46,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a9320ef/dcd20317320e495cadd871302a485e87 [2024-11-09 12:15:46,725 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 12:15:46,727 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 12:15:46,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 12:15:46,728 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 12:15:46,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 12:15:46,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:15:46" (1/1) ... [2024-11-09 12:15:46,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1570f7c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:46, skipping insertion in model container [2024-11-09 12:15:46,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:15:46" (1/1) ... [2024-11-09 12:15:46,759 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 12:15:46,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:15:46,984 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 12:15:47,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 12:15:47,033 INFO L204 MainTranslator]: Completed translation [2024-11-09 12:15:47,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47 WrapperNode [2024-11-09 12:15:47,034 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 12:15:47,035 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 12:15:47,035 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 12:15:47,035 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 12:15:47,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,082 INFO L138 Inliner]: procedures = 16, calls = 100, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 196 [2024-11-09 12:15:47,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 12:15:47,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 12:15:47,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 12:15:47,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 12:15:47,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,125 INFO L175 MemorySlicer]: Split 66 memory accesses to 6 slices as follows [2, 12, 5, 21, 15, 11]. 32 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 1, 2, 2, 2]. [2024-11-09 12:15:47,126 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,126 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,136 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,139 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,140 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,142 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 12:15:47,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 12:15:47,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 12:15:47,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 12:15:47,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (1/1) ... [2024-11-09 12:15:47,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 12:15:47,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:15:47,199 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) [2024-11-09 12:15:47,208 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 [2024-11-09 12:15:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 12:15:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 12:15:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 12:15:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 12:15:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 12:15:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 12:15:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 12:15:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 12:15:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 12:15:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 12:15:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 12:15:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_29_to_41_0 [2024-11-09 12:15:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_29_to_41_0 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 12:15:47,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 12:15:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 12:15:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 12:15:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 12:15:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 12:15:47,265 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 12:15:47,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 12:15:47,383 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 12:15:47,386 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 12:15:48,490 INFO L? ?]: Removed 357 outVars from TransFormulas that were not future-live. [2024-11-09 12:15:48,491 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 12:15:48,528 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 12:15:48,528 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 12:15:48,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:15:48 BoogieIcfgContainer [2024-11-09 12:15:48,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 12:15:48,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 12:15:48,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 12:15:48,537 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 12:15:48,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 12:15:46" (1/3) ... [2024-11-09 12:15:48,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320888ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:15:48, skipping insertion in model container [2024-11-09 12:15:48,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:15:47" (2/3) ... [2024-11-09 12:15:48,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320888ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 12:15:48, skipping insertion in model container [2024-11-09 12:15:48,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:15:48" (3/3) ... [2024-11-09 12:15:48,541 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_cohencu-ll.c [2024-11-09 12:15:48,563 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 12:15:48,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 138 error locations. [2024-11-09 12:15:48,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 12:15:48,649 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;@137e826a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 12:15:48,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-11-09 12:15:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 317 states, 163 states have (on average 1.8650306748466257) internal successors, (304), 302 states have internal predecessors, (304), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-09 12:15:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 12:15:48,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:48,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 12:15:48,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:48,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:48,666 INFO L85 PathProgramCache]: Analyzing trace with hash 476001869, now seen corresponding path program 1 times [2024-11-09 12:15:48,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:48,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956229769] [2024-11-09 12:15:48,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:48,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:49,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:49,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956229769] [2024-11-09 12:15:49,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956229769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:15:49,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:15:49,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:15:49,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856243556] [2024-11-09 12:15:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:15:49,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:15:49,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:49,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:15:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:15:49,246 INFO L87 Difference]: Start difference. First operand has 317 states, 163 states have (on average 1.8650306748466257) internal successors, (304), 302 states have internal predecessors, (304), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:15:49,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:49,517 INFO L93 Difference]: Finished difference Result 738 states and 792 transitions. [2024-11-09 12:15:49,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:15:49,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 12:15:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:49,536 INFO L225 Difference]: With dead ends: 738 [2024-11-09 12:15:49,536 INFO L226 Difference]: Without dead ends: 418 [2024-11-09 12:15:49,543 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 [2024-11-09 12:15:49,549 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 205 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1530 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:49,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1530 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:15:49,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-09 12:15:49,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 371. [2024-11-09 12:15:49,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 213 states have (on average 1.8497652582159625) internal successors, (394), 351 states have internal predecessors, (394), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 12:15:49,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 429 transitions. [2024-11-09 12:15:49,632 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 429 transitions. Word has length 6 [2024-11-09 12:15:49,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:49,635 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 429 transitions. [2024-11-09 12:15:49,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 12:15:49,635 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 429 transitions. [2024-11-09 12:15:49,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 12:15:49,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:49,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:15:49,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 12:15:49,638 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_29_to_41_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:49,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:49,639 INFO L85 PathProgramCache]: Analyzing trace with hash 13280284, now seen corresponding path program 1 times [2024-11-09 12:15:49,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:49,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933401612] [2024-11-09 12:15:49,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:49,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:49,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:15:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:49,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:49,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:49,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933401612] [2024-11-09 12:15:49,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933401612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:15:49,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:15:49,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:15:49,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585985157] [2024-11-09 12:15:49,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:15:49,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:15:49,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:49,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:15:49,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:15:49,944 INFO L87 Difference]: Start difference. First operand 371 states and 429 transitions. Second operand has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:15:50,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:50,134 INFO L93 Difference]: Finished difference Result 418 states and 434 transitions. [2024-11-09 12:15:50,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:15:50,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-11-09 12:15:50,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:50,137 INFO L225 Difference]: With dead ends: 418 [2024-11-09 12:15:50,137 INFO L226 Difference]: Without dead ends: 414 [2024-11-09 12:15:50,138 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:15:50,139 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 200 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1479 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:50,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1479 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:15:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-09 12:15:50,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 371. [2024-11-09 12:15:50,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 213 states have (on average 1.8309859154929577) internal successors, (390), 351 states have internal predecessors, (390), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 12:15:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 425 transitions. [2024-11-09 12:15:50,172 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 425 transitions. Word has length 16 [2024-11-09 12:15:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:50,173 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 425 transitions. [2024-11-09 12:15:50,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:15:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 425 transitions. [2024-11-09 12:15:50,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 12:15:50,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:50,174 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] [2024-11-09 12:15:50,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 12:15:50,175 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_29_to_41_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:50,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:50,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1803988512, now seen corresponding path program 1 times [2024-11-09 12:15:50,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:50,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001476225] [2024-11-09 12:15:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:50,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:15:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:50,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:50,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001476225] [2024-11-09 12:15:50,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001476225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:15:50,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:15:50,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:15:50,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295355733] [2024-11-09 12:15:50,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:15:50,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:15:50,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:15:50,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:15:50,372 INFO L87 Difference]: Start difference. First operand 371 states and 425 transitions. Second operand has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-09 12:15:50,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:50,593 INFO L93 Difference]: Finished difference Result 414 states and 430 transitions. [2024-11-09 12:15:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:15:50,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 20 [2024-11-09 12:15:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:50,596 INFO L225 Difference]: With dead ends: 414 [2024-11-09 12:15:50,596 INFO L226 Difference]: Without dead ends: 412 [2024-11-09 12:15:50,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:15:50,599 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 186 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:50,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 1481 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:15:50,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-09 12:15:50,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 371. [2024-11-09 12:15:50,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 213 states have (on average 1.8215962441314555) internal successors, (388), 351 states have internal predecessors, (388), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 12:15:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 423 transitions. [2024-11-09 12:15:50,635 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 423 transitions. Word has length 20 [2024-11-09 12:15:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:50,635 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 423 transitions. [2024-11-09 12:15:50,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-11-09 12:15:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 423 transitions. [2024-11-09 12:15:50,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-09 12:15:50,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:50,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:15:50,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 12:15:50,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_29_to_41_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:50,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:50,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1533829314, now seen corresponding path program 1 times [2024-11-09 12:15:50,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:50,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471680812] [2024-11-09 12:15:50,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:50,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:50,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:15:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:50,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:50,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:50,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471680812] [2024-11-09 12:15:50,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471680812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:15:50,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:15:50,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:15:50,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075269926] [2024-11-09 12:15:50,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:15:50,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:15:50,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:50,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:15:50,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:15:50,900 INFO L87 Difference]: Start difference. First operand 371 states and 423 transitions. Second operand has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:15:51,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:51,096 INFO L93 Difference]: Finished difference Result 412 states and 428 transitions. [2024-11-09 12:15:51,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:15:51,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-11-09 12:15:51,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:51,099 INFO L225 Difference]: With dead ends: 412 [2024-11-09 12:15:51,099 INFO L226 Difference]: Without dead ends: 410 [2024-11-09 12:15:51,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:15:51,101 INFO L432 NwaCegarLoop]: 298 mSDtfsCounter, 188 mSDsluCounter, 1251 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:51,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1549 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:15:51,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-09 12:15:51,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 371. [2024-11-09 12:15:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 213 states have (on average 1.812206572769953) internal successors, (386), 351 states have internal predecessors, (386), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 12:15:51,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 421 transitions. [2024-11-09 12:15:51,112 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 421 transitions. Word has length 22 [2024-11-09 12:15:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:51,113 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 421 transitions. [2024-11-09 12:15:51,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.8) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 12:15:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 421 transitions. [2024-11-09 12:15:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 12:15:51,114 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:51,114 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] [2024-11-09 12:15:51,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 12:15:51,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_29_to_41_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:51,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:51,115 INFO L85 PathProgramCache]: Analyzing trace with hash 304068537, now seen corresponding path program 1 times [2024-11-09 12:15:51,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:51,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376168244] [2024-11-09 12:15:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:51,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:51,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:15:51,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:51,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:51,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376168244] [2024-11-09 12:15:51,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376168244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:15:51,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:15:51,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:15:51,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38281] [2024-11-09 12:15:51,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:15:51,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:15:51,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:51,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:15:51,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:15:51,289 INFO L87 Difference]: Start difference. First operand 371 states and 421 transitions. Second operand has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-09 12:15:51,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:51,471 INFO L93 Difference]: Finished difference Result 410 states and 426 transitions. [2024-11-09 12:15:51,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:15:51,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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 23 [2024-11-09 12:15:51,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:51,475 INFO L225 Difference]: With dead ends: 410 [2024-11-09 12:15:51,476 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 12:15:51,476 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:15:51,478 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 175 mSDsluCounter, 1181 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:51,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 1483 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:15:51,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 12:15:51,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 371. [2024-11-09 12:15:51,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 213 states have (on average 1.8028169014084507) internal successors, (384), 351 states have internal predecessors, (384), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-09 12:15:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 419 transitions. [2024-11-09 12:15:51,494 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 419 transitions. Word has length 23 [2024-11-09 12:15:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:51,494 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 419 transitions. [2024-11-09 12:15:51,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 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) [2024-11-09 12:15:51,495 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 419 transitions. [2024-11-09 12:15:51,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 12:15:51,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:51,496 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] [2024-11-09 12:15:51,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 12:15:51,496 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_29_to_41_0Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:51,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:51,497 INFO L85 PathProgramCache]: Analyzing trace with hash 952671999, now seen corresponding path program 1 times [2024-11-09 12:15:51,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:51,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730275192] [2024-11-09 12:15:51,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:51,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:15:51,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139770209] [2024-11-09 12:15:51,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:51,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:15:51,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:15:51,540 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) [2024-11-09 12:15:51,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 12:15:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:51,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-09 12:15:51,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:15:51,704 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 [2024-11-09 12:15:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 12:15:51,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:15:53,163 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 24 treesize of output 16 [2024-11-09 12:15:53,271 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 12:15:53,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:53,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730275192] [2024-11-09 12:15:53,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:15:53,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139770209] [2024-11-09 12:15:53,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139770209] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:15:53,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 12:15:53,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2024-11-09 12:15:53,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474896434] [2024-11-09 12:15:53,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 12:15:53,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 12:15:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:53,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 12:15:53,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-09 12:15:53,275 INFO L87 Difference]: Start difference. First operand 371 states and 419 transitions. Second operand has 17 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 12:15:54,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:15:54,206 INFO L93 Difference]: Finished difference Result 602 states and 621 transitions. [2024-11-09 12:15:54,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 12:15:54,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 3 states have call successors, (4) Word has length 32 [2024-11-09 12:15:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:15:54,209 INFO L225 Difference]: With dead ends: 602 [2024-11-09 12:15:54,210 INFO L226 Difference]: Without dead ends: 598 [2024-11-09 12:15:54,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=130, Invalid=572, Unknown=0, NotChecked=0, Total=702 [2024-11-09 12:15:54,211 INFO L432 NwaCegarLoop]: 274 mSDtfsCounter, 772 mSDsluCounter, 3507 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 772 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 12:15:54,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [772 Valid, 3781 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 12:15:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2024-11-09 12:15:54,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 453. [2024-11-09 12:15:54,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.8131487889273357) internal successors, (524), 427 states have internal predecessors, (524), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:15:54,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 569 transitions. [2024-11-09 12:15:54,227 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 569 transitions. Word has length 32 [2024-11-09 12:15:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:15:54,228 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 569 transitions. [2024-11-09 12:15:54,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (4), 1 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 12:15:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 569 transitions. [2024-11-09 12:15:54,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 12:15:54,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:15:54,229 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:15:54,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 12:15:54,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 12:15:54,430 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_29_to_41_0Err18ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:15:54,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:15:54,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1089407434, now seen corresponding path program 1 times [2024-11-09 12:15:54,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:15:54,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153931545] [2024-11-09 12:15:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:54,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:15:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:15:54,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006279554] [2024-11-09 12:15:54,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:15:54,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:15:54,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:15:54,462 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) [2024-11-09 12:15:54,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 12:15:54,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:15:54,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 12:15:54,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:15:54,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 12:15:54,585 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 [2024-11-09 12:15:55,095 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 [2024-11-09 12:15:55,113 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 12:15:55,113 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 22 [2024-11-09 12:15:55,141 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 12:15:55,142 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:15:55,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:15:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153931545] [2024-11-09 12:15:55,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:15:55,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006279554] [2024-11-09 12:15:55,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006279554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:15:55,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:15:55,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-09 12:15:55,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613082360] [2024-11-09 12:15:55,232 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 12:15:55,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 12:15:55,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:15:55,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 12:15:55,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-09 12:15:55,234 INFO L87 Difference]: Start difference. First operand 453 states and 569 transitions. Second operand has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:15:59,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:03,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:08,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:12,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:16,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:20,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:24,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 12:16:28,158 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] [2024-11-09 12:16:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:28,221 INFO L93 Difference]: Finished difference Result 594 states and 613 transitions. [2024-11-09 12:16:28,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 12:16:28,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-09 12:16:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:28,226 INFO L225 Difference]: With dead ends: 594 [2024-11-09 12:16:28,226 INFO L226 Difference]: Without dead ends: 593 [2024-11-09 12:16:28,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-11-09 12:16:28,227 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 622 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 33 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:28,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 2576 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 617 Invalid, 8 Unknown, 0 Unchecked, 32.7s Time] [2024-11-09 12:16:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-09 12:16:28,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 453. [2024-11-09 12:16:28,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.8096885813148789) internal successors, (523), 427 states have internal predecessors, (523), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 568 transitions. [2024-11-09 12:16:28,251 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 568 transitions. Word has length 42 [2024-11-09 12:16:28,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:28,252 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 568 transitions. [2024-11-09 12:16:28,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:16:28,252 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 568 transitions. [2024-11-09 12:16:28,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-09 12:16:28,253 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:28,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:28,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 12:16:28,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 12:16:28,458 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_29_to_41_0Err19ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:28,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:28,459 INFO L85 PathProgramCache]: Analyzing trace with hash 588107993, now seen corresponding path program 1 times [2024-11-09 12:16:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:28,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878598814] [2024-11-09 12:16:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:28,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:28,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:28,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961394635] [2024-11-09 12:16:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:28,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:28,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:28,486 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) [2024-11-09 12:16:28,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 12:16:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:28,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-09 12:16:28,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:28,599 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 [2024-11-09 12:16:28,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 12:16:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-09 12:16:29,018 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:16:29,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878598814] [2024-11-09 12:16:29,285 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:29,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961394635] [2024-11-09 12:16:29,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961394635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:16:29,285 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:16:29,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-09 12:16:29,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747353295] [2024-11-09 12:16:29,286 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 12:16:29,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 12:16:29,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:29,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 12:16:29,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:16:29,287 INFO L87 Difference]: Start difference. First operand 453 states and 568 transitions. Second operand has 10 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:16:29,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:29,919 INFO L93 Difference]: Finished difference Result 593 states and 612 transitions. [2024-11-09 12:16:29,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 12:16:29,920 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-09 12:16:29,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:29,922 INFO L225 Difference]: With dead ends: 593 [2024-11-09 12:16:29,922 INFO L226 Difference]: Without dead ends: 592 [2024-11-09 12:16:29,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-09 12:16:29,924 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 358 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:29,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 2006 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 12:16:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-09 12:16:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 453. [2024-11-09 12:16:29,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.806228373702422) internal successors, (522), 427 states have internal predecessors, (522), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 567 transitions. [2024-11-09 12:16:29,940 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 567 transitions. Word has length 43 [2024-11-09 12:16:29,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:29,940 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 567 transitions. [2024-11-09 12:16:29,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 9 states have internal predecessors, (33), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 12:16:29,940 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 567 transitions. [2024-11-09 12:16:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 12:16:29,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:29,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:29,961 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 12:16:30,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:30,143 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_29_to_41_0Err20ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:30,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:30,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1051478680, now seen corresponding path program 1 times [2024-11-09 12:16:30,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:30,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631558602] [2024-11-09 12:16:30,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:30,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:30,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,358 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:30,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:30,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631558602] [2024-11-09 12:16:30,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631558602] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:30,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:30,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:30,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677647569] [2024-11-09 12:16:30,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:30,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:30,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:30,363 INFO L87 Difference]: Start difference. First operand 453 states and 567 transitions. Second operand has 6 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:30,628 INFO L93 Difference]: Finished difference Result 560 states and 580 transitions. [2024-11-09 12:16:30,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:30,629 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2024-11-09 12:16:30,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:30,633 INFO L225 Difference]: With dead ends: 560 [2024-11-09 12:16:30,634 INFO L226 Difference]: Without dead ends: 558 [2024-11-09 12:16:30,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:30,635 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 313 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:30,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 1431 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:30,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-11-09 12:16:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 453. [2024-11-09 12:16:30,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7993079584775087) internal successors, (520), 427 states have internal predecessors, (520), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:30,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 565 transitions. [2024-11-09 12:16:30,652 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 565 transitions. Word has length 44 [2024-11-09 12:16:30,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:30,652 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 565 transitions. [2024-11-09 12:16:30,652 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), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 565 transitions. [2024-11-09 12:16:30,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 12:16:30,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:30,657 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:30,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 12:16:30,657 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_29_to_41_0Err22ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:30,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:30,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1153699578, now seen corresponding path program 1 times [2024-11-09 12:16:30,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:30,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394039476] [2024-11-09 12:16:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:30,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:30,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:30,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394039476] [2024-11-09 12:16:30,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394039476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:30,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:30,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:16:30,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891175994] [2024-11-09 12:16:30,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:30,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:16:30,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:30,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:16:30,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:30,904 INFO L87 Difference]: Start difference. First operand 453 states and 565 transitions. Second operand has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:31,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:31,420 INFO L93 Difference]: Finished difference Result 558 states and 578 transitions. [2024-11-09 12:16:31,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:16:31,421 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-11-09 12:16:31,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:31,424 INFO L225 Difference]: With dead ends: 558 [2024-11-09 12:16:31,424 INFO L226 Difference]: Without dead ends: 557 [2024-11-09 12:16:31,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:16:31,425 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 309 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:31,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1695 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:31,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-09 12:16:31,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 453. [2024-11-09 12:16:31,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7958477508650519) internal successors, (519), 427 states have internal predecessors, (519), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:31,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 564 transitions. [2024-11-09 12:16:31,445 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 564 transitions. Word has length 46 [2024-11-09 12:16:31,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:31,445 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 564 transitions. [2024-11-09 12:16:31,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 564 transitions. [2024-11-09 12:16:31,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 12:16:31,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:31,447 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:31,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 12:16:31,447 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting func_to_recursive_line_29_to_41_0Err23ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:31,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:31,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1404948637, now seen corresponding path program 1 times [2024-11-09 12:16:31,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:31,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127990326] [2024-11-09 12:16:31,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:31,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:31,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:31,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:31,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:31,690 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:31,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:31,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127990326] [2024-11-09 12:16:31,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127990326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:31,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:31,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:31,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013899686] [2024-11-09 12:16:31,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:31,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:31,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:31,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:31,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:31,692 INFO L87 Difference]: Start difference. First operand 453 states and 564 transitions. Second operand has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:32,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:32,183 INFO L93 Difference]: Finished difference Result 557 states and 577 transitions. [2024-11-09 12:16:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:32,184 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-11-09 12:16:32,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:32,186 INFO L225 Difference]: With dead ends: 557 [2024-11-09 12:16:32,186 INFO L226 Difference]: Without dead ends: 556 [2024-11-09 12:16:32,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:32,188 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 306 mSDsluCounter, 1139 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:32,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 1431 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-09 12:16:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 453. [2024-11-09 12:16:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.792387543252595) internal successors, (518), 427 states have internal predecessors, (518), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 563 transitions. [2024-11-09 12:16:32,212 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 563 transitions. Word has length 47 [2024-11-09 12:16:32,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:32,212 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 563 transitions. [2024-11-09 12:16:32,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:32,213 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 563 transitions. [2024-11-09 12:16:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 12:16:32,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:32,214 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:32,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 12:16:32,214 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_29_to_41_0Err24ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:32,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:32,215 INFO L85 PathProgramCache]: Analyzing trace with hash 603734876, now seen corresponding path program 1 times [2024-11-09 12:16:32,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:32,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599322026] [2024-11-09 12:16:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:32,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:32,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:32,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:32,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:32,438 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:32,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:32,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599322026] [2024-11-09 12:16:32,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599322026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:32,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:32,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:32,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901878893] [2024-11-09 12:16:32,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:32,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:32,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:32,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:32,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:32,440 INFO L87 Difference]: Start difference. First operand 453 states and 563 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:32,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:32,612 INFO L93 Difference]: Finished difference Result 568 states and 588 transitions. [2024-11-09 12:16:32,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:32,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-09 12:16:32,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:32,616 INFO L225 Difference]: With dead ends: 568 [2024-11-09 12:16:32,617 INFO L226 Difference]: Without dead ends: 566 [2024-11-09 12:16:32,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:32,619 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 311 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:32,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 1423 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-09 12:16:32,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 453. [2024-11-09 12:16:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7854671280276817) internal successors, (516), 427 states have internal predecessors, (516), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:32,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 561 transitions. [2024-11-09 12:16:32,635 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 561 transitions. Word has length 48 [2024-11-09 12:16:32,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:32,635 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 561 transitions. [2024-11-09 12:16:32,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:32,636 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 561 transitions. [2024-11-09 12:16:32,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 12:16:32,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:32,636 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:32,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 12:16:32,637 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting func_to_recursive_line_29_to_41_0Err26ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:32,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:32,637 INFO L85 PathProgramCache]: Analyzing trace with hash 368633790, now seen corresponding path program 1 times [2024-11-09 12:16:32,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:32,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469663336] [2024-11-09 12:16:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:32,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:32,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1716804520] [2024-11-09 12:16:32,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:32,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:32,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:32,663 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) [2024-11-09 12:16:32,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 12:16:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:32,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 12:16:32,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:32,788 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 [2024-11-09 12:16:32,793 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 [2024-11-09 12:16:32,798 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 [2024-11-09 12:16:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:33,296 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:33,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:33,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469663336] [2024-11-09 12:16:33,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:33,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716804520] [2024-11-09 12:16:33,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716804520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:33,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:33,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 12:16:33,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899759576] [2024-11-09 12:16:33,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:33,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 12:16:33,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:33,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 12:16:33,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:16:33,299 INFO L87 Difference]: Start difference. First operand 453 states and 561 transitions. Second operand has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:33,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:33,827 INFO L93 Difference]: Finished difference Result 582 states and 601 transitions. [2024-11-09 12:16:33,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 12:16:33,827 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2024-11-09 12:16:33,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:33,829 INFO L225 Difference]: With dead ends: 582 [2024-11-09 12:16:33,830 INFO L226 Difference]: Without dead ends: 580 [2024-11-09 12:16:33,830 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2024-11-09 12:16:33,832 INFO L432 NwaCegarLoop]: 260 mSDtfsCounter, 353 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1953 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:33,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1953 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:33,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-09 12:16:33,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 453. [2024-11-09 12:16:33,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.778546712802768) internal successors, (514), 427 states have internal predecessors, (514), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 559 transitions. [2024-11-09 12:16:33,849 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 559 transitions. Word has length 50 [2024-11-09 12:16:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:33,849 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 559 transitions. [2024-11-09 12:16:33,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 559 transitions. [2024-11-09 12:16:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 12:16:33,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:33,850 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:33,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:34,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:34,051 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_29_to_41_0Err28ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:34,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:34,052 INFO L85 PathProgramCache]: Analyzing trace with hash 2069756960, now seen corresponding path program 1 times [2024-11-09 12:16:34,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:34,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356472916] [2024-11-09 12:16:34,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:34,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:34,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:34,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:34,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356472916] [2024-11-09 12:16:34,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356472916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:34,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:34,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:34,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089495477] [2024-11-09 12:16:34,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:34,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:34,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:34,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:34,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:34,341 INFO L87 Difference]: Start difference. First operand 453 states and 559 transitions. Second operand has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:34,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:34,546 INFO L93 Difference]: Finished difference Result 576 states and 596 transitions. [2024-11-09 12:16:34,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:34,546 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 52 [2024-11-09 12:16:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:34,549 INFO L225 Difference]: With dead ends: 576 [2024-11-09 12:16:34,549 INFO L226 Difference]: Without dead ends: 574 [2024-11-09 12:16:34,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:34,550 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 309 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:34,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1416 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:34,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2024-11-09 12:16:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 453. [2024-11-09 12:16:34,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7716262975778547) internal successors, (512), 427 states have internal predecessors, (512), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 557 transitions. [2024-11-09 12:16:34,571 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 557 transitions. Word has length 52 [2024-11-09 12:16:34,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:34,571 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 557 transitions. [2024-11-09 12:16:34,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 557 transitions. [2024-11-09 12:16:34,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 12:16:34,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:34,572 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:34,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 12:16:34,573 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting func_to_recursive_line_29_to_41_0Err30ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:34,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:34,573 INFO L85 PathProgramCache]: Analyzing trace with hash 466583682, now seen corresponding path program 1 times [2024-11-09 12:16:34,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:34,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426422906] [2024-11-09 12:16:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:34,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:34,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:34,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:34,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426422906] [2024-11-09 12:16:34,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426422906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:34,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:34,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:16:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102635067] [2024-11-09 12:16:34,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:34,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:16:34,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:16:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:34,801 INFO L87 Difference]: Start difference. First operand 453 states and 557 transitions. Second operand has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:35,145 INFO L93 Difference]: Finished difference Result 574 states and 594 transitions. [2024-11-09 12:16:35,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:16:35,146 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2024-11-09 12:16:35,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:35,148 INFO L225 Difference]: With dead ends: 574 [2024-11-09 12:16:35,148 INFO L226 Difference]: Without dead ends: 572 [2024-11-09 12:16:35,149 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 12:16:35,149 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 303 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:35,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1653 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:35,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-09 12:16:35,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 453. [2024-11-09 12:16:35,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7647058823529411) internal successors, (510), 427 states have internal predecessors, (510), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:35,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 555 transitions. [2024-11-09 12:16:35,165 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 555 transitions. Word has length 54 [2024-11-09 12:16:35,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:35,166 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 555 transitions. [2024-11-09 12:16:35,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:35,166 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 555 transitions. [2024-11-09 12:16:35,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 12:16:35,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:35,167 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:35,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 12:16:35,167 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_29_to_41_0Err31ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:35,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:35,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1579192357, now seen corresponding path program 1 times [2024-11-09 12:16:35,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:35,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119454695] [2024-11-09 12:16:35,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:35,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:35,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:35,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:35,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:35,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:35,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:35,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119454695] [2024-11-09 12:16:35,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119454695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:35,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:35,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 12:16:35,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290013666] [2024-11-09 12:16:35,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:35,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 12:16:35,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:35,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 12:16:35,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:35,817 INFO L87 Difference]: Start difference. First operand 453 states and 555 transitions. Second operand has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:37,068 INFO L93 Difference]: Finished difference Result 548 states and 568 transitions. [2024-11-09 12:16:37,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 12:16:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2024-11-09 12:16:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:37,071 INFO L225 Difference]: With dead ends: 548 [2024-11-09 12:16:37,071 INFO L226 Difference]: Without dead ends: 546 [2024-11-09 12:16:37,072 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:16:37,072 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 292 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:37,073 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 1797 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 12:16:37,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2024-11-09 12:16:37,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 453. [2024-11-09 12:16:37,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7577854671280277) internal successors, (508), 427 states have internal predecessors, (508), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:37,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 553 transitions. [2024-11-09 12:16:37,088 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 553 transitions. Word has length 55 [2024-11-09 12:16:37,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:37,088 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 553 transitions. [2024-11-09 12:16:37,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 12:16:37,089 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 553 transitions. [2024-11-09 12:16:37,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 12:16:37,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:37,090 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:37,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 12:16:37,090 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting func_to_recursive_line_29_to_41_0Err34ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:37,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:37,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1656337381, now seen corresponding path program 1 times [2024-11-09 12:16:37,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:37,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312251497] [2024-11-09 12:16:37,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:37,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:37,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [737470148] [2024-11-09 12:16:37,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:37,118 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) [2024-11-09 12:16:37,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 12:16:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:37,268 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 12:16:37,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:37,278 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 [2024-11-09 12:16:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 12:16:37,558 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:16:37,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:37,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312251497] [2024-11-09 12:16:37,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:37,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737470148] [2024-11-09 12:16:37,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737470148] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:16:37,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:16:37,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 12:16:37,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038027451] [2024-11-09 12:16:37,626 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 12:16:37,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 12:16:37,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:37,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 12:16:37,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-09 12:16:37,627 INFO L87 Difference]: Start difference. First operand 453 states and 553 transitions. Second operand has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:16:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:38,149 INFO L93 Difference]: Finished difference Result 582 states and 601 transitions. [2024-11-09 12:16:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 12:16:38,149 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64 [2024-11-09 12:16:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:38,152 INFO L225 Difference]: With dead ends: 582 [2024-11-09 12:16:38,152 INFO L226 Difference]: Without dead ends: 581 [2024-11-09 12:16:38,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-09 12:16:38,153 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 382 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:38,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 2648 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-09 12:16:38,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 453. [2024-11-09 12:16:38,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.754325259515571) internal successors, (507), 427 states have internal predecessors, (507), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 552 transitions. [2024-11-09 12:16:38,170 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 552 transitions. Word has length 64 [2024-11-09 12:16:38,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:38,171 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 552 transitions. [2024-11-09 12:16:38,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.444444444444445) internal successors, (49), 10 states have internal predecessors, (49), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 12:16:38,172 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 552 transitions. [2024-11-09 12:16:38,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 12:16:38,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:38,173 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:38,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:38,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-09 12:16:38,374 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting func_to_recursive_line_29_to_41_0Err35ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:38,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:38,374 INFO L85 PathProgramCache]: Analyzing trace with hash 193148854, now seen corresponding path program 1 times [2024-11-09 12:16:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:38,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742793046] [2024-11-09 12:16:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:38,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:38,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089367655] [2024-11-09 12:16:38,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:38,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:38,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:38,399 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) [2024-11-09 12:16:38,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 12:16:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:38,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 12:16:38,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:38,531 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 [2024-11-09 12:16:38,743 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:38,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:38,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:38,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742793046] [2024-11-09 12:16:38,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:38,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089367655] [2024-11-09 12:16:38,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089367655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:38,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:38,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:16:38,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440068785] [2024-11-09 12:16:38,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:38,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:16:38,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:38,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:16:38,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:38,747 INFO L87 Difference]: Start difference. First operand 453 states and 552 transitions. Second operand has 7 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:38,964 INFO L93 Difference]: Finished difference Result 581 states and 600 transitions. [2024-11-09 12:16:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:16:38,964 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 65 [2024-11-09 12:16:38,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:38,967 INFO L225 Difference]: With dead ends: 581 [2024-11-09 12:16:38,967 INFO L226 Difference]: Without dead ends: 580 [2024-11-09 12:16:38,968 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 7 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:16:38,968 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 354 mSDsluCounter, 1177 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1454 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:38,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1454 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:38,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-09 12:16:38,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 453. [2024-11-09 12:16:38,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7508650519031141) internal successors, (506), 427 states have internal predecessors, (506), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:38,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 551 transitions. [2024-11-09 12:16:38,984 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 551 transitions. Word has length 65 [2024-11-09 12:16:38,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:38,984 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 551 transitions. [2024-11-09 12:16:38,985 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:38,985 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 551 transitions. [2024-11-09 12:16:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 12:16:38,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:38,986 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:39,006 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 12:16:39,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-09 12:16:39,190 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting func_to_recursive_line_29_to_41_0Err36ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:39,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:39,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1692647293, now seen corresponding path program 1 times [2024-11-09 12:16:39,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:39,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492256882] [2024-11-09 12:16:39,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:39,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:39,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:39,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492256882] [2024-11-09 12:16:39,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492256882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:39,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:39,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:39,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083475030] [2024-11-09 12:16:39,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:39,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:39,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:39,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:39,405 INFO L87 Difference]: Start difference. First operand 453 states and 551 transitions. Second operand has 6 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:39,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:39,688 INFO L93 Difference]: Finished difference Result 556 states and 576 transitions. [2024-11-09 12:16:39,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:39,688 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 66 [2024-11-09 12:16:39,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:39,690 INFO L225 Difference]: With dead ends: 556 [2024-11-09 12:16:39,691 INFO L226 Difference]: Without dead ends: 554 [2024-11-09 12:16:39,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:39,692 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 274 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:39,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 1423 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-09 12:16:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 453. [2024-11-09 12:16:39,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7439446366782008) internal successors, (504), 427 states have internal predecessors, (504), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:39,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 549 transitions. [2024-11-09 12:16:39,712 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 549 transitions. Word has length 66 [2024-11-09 12:16:39,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:39,713 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 549 transitions. [2024-11-09 12:16:39,713 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), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 549 transitions. [2024-11-09 12:16:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 12:16:39,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:39,714 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:39,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 12:16:39,714 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_29_to_41_0Err38ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:39,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1158552865, now seen corresponding path program 1 times [2024-11-09 12:16:39,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:39,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084459567] [2024-11-09 12:16:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:39,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1041826603] [2024-11-09 12:16:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:39,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:39,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:39,753 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) [2024-11-09 12:16:39,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 12:16:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:39,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 12:16:39,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:39,880 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 [2024-11-09 12:16:39,885 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 [2024-11-09 12:16:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:40,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:40,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:40,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084459567] [2024-11-09 12:16:40,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:40,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041826603] [2024-11-09 12:16:40,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041826603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:40,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:40,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 12:16:40,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100807570] [2024-11-09 12:16:40,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:40,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 12:16:40,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:40,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 12:16:40,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:40,281 INFO L87 Difference]: Start difference. First operand 453 states and 549 transitions. Second operand has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:40,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:40,619 INFO L93 Difference]: Finished difference Result 574 states and 593 transitions. [2024-11-09 12:16:40,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 12:16:40,620 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 68 [2024-11-09 12:16:40,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:40,622 INFO L225 Difference]: With dead ends: 574 [2024-11-09 12:16:40,622 INFO L226 Difference]: Without dead ends: 572 [2024-11-09 12:16:40,622 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:16:40,623 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 496 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:40,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 1468 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-09 12:16:40,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 453. [2024-11-09 12:16:40,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7370242214532872) internal successors, (502), 427 states have internal predecessors, (502), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 547 transitions. [2024-11-09 12:16:40,638 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 547 transitions. Word has length 68 [2024-11-09 12:16:40,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:40,639 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 547 transitions. [2024-11-09 12:16:40,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 547 transitions. [2024-11-09 12:16:40,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 12:16:40,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:40,640 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:40,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:40,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:40,845 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting func_to_recursive_line_29_to_41_0Err40ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:40,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:40,845 INFO L85 PathProgramCache]: Analyzing trace with hash -972769727, now seen corresponding path program 1 times [2024-11-09 12:16:40,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:40,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411414906] [2024-11-09 12:16:40,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:40,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:41,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,028 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:41,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:41,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411414906] [2024-11-09 12:16:41,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411414906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:41,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:41,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:41,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300757055] [2024-11-09 12:16:41,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:41,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:41,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:41,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:41,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:41,030 INFO L87 Difference]: Start difference. First operand 453 states and 547 transitions. Second operand has 6 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:41,235 INFO L93 Difference]: Finished difference Result 564 states and 584 transitions. [2024-11-09 12:16:41,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:41,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 70 [2024-11-09 12:16:41,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:41,238 INFO L225 Difference]: With dead ends: 564 [2024-11-09 12:16:41,238 INFO L226 Difference]: Without dead ends: 562 [2024-11-09 12:16:41,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:41,239 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 272 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:41,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 1415 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:41,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-09 12:16:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 453. [2024-11-09 12:16:41,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7301038062283738) internal successors, (500), 427 states have internal predecessors, (500), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:41,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 545 transitions. [2024-11-09 12:16:41,255 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 545 transitions. Word has length 70 [2024-11-09 12:16:41,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:41,256 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 545 transitions. [2024-11-09 12:16:41,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 13.0) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 545 transitions. [2024-11-09 12:16:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 12:16:41,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:41,258 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:41,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-09 12:16:41,258 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_29_to_41_0Err42ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:41,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:41,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1471166883, now seen corresponding path program 1 times [2024-11-09 12:16:41,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:41,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774091852] [2024-11-09 12:16:41,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:41,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:41,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336744263] [2024-11-09 12:16:41,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:41,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:41,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:41,294 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) [2024-11-09 12:16:41,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 12:16:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:41,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-09 12:16:41,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:41,449 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 [2024-11-09 12:16:41,459 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 [2024-11-09 12:16:41,889 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:41,889 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:41,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:41,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774091852] [2024-11-09 12:16:41,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:41,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336744263] [2024-11-09 12:16:41,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336744263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:41,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:41,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 12:16:41,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705124985] [2024-11-09 12:16:41,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:41,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 12:16:41,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:41,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 12:16:41,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:16:41,891 INFO L87 Difference]: Start difference. First operand 453 states and 545 transitions. Second operand has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:42,251 INFO L93 Difference]: Finished difference Result 570 states and 589 transitions. [2024-11-09 12:16:42,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 12:16:42,251 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 72 [2024-11-09 12:16:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:42,253 INFO L225 Difference]: With dead ends: 570 [2024-11-09 12:16:42,253 INFO L226 Difference]: Without dead ends: 566 [2024-11-09 12:16:42,254 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 57 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-09 12:16:42,255 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 304 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 1858 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:42,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 1858 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-09 12:16:42,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 453. [2024-11-09 12:16:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 289 states have (on average 1.7162629757785468) internal successors, (496), 427 states have internal predecessors, (496), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:42,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 541 transitions. [2024-11-09 12:16:42,270 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 541 transitions. Word has length 72 [2024-11-09 12:16:42,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:42,271 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 541 transitions. [2024-11-09 12:16:42,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.714285714285714) internal successors, (54), 8 states have internal predecessors, (54), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 12:16:42,271 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 541 transitions. [2024-11-09 12:16:42,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 12:16:42,271 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:42,272 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:42,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 12:16:42,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 12:16:42,473 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting func_to_recursive_line_29_to_41_0Err46ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:42,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:42,473 INFO L85 PathProgramCache]: Analyzing trace with hash -814628251, now seen corresponding path program 1 times [2024-11-09 12:16:42,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:42,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061858820] [2024-11-09 12:16:42,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:42,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:42,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:42,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:42,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:42,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:42,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:42,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:42,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061858820] [2024-11-09 12:16:42,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061858820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:42,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:42,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:42,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752232346] [2024-11-09 12:16:42,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:42,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:42,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:42,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:42,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:42,689 INFO L87 Difference]: Start difference. First operand 453 states and 541 transitions. Second operand has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:42,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:42,800 INFO L93 Difference]: Finished difference Result 457 states and 545 transitions. [2024-11-09 12:16:42,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:42,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 83 [2024-11-09 12:16:42,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:42,805 INFO L225 Difference]: With dead ends: 457 [2024-11-09 12:16:42,805 INFO L226 Difference]: Without dead ends: 455 [2024-11-09 12:16:42,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:42,806 INFO L432 NwaCegarLoop]: 307 mSDtfsCounter, 62 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:42,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1508 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:42,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2024-11-09 12:16:42,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 455. [2024-11-09 12:16:42,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 291 states have (on average 1.711340206185567) internal successors, (498), 429 states have internal predecessors, (498), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 543 transitions. [2024-11-09 12:16:42,833 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 543 transitions. Word has length 83 [2024-11-09 12:16:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:42,834 INFO L471 AbstractCegarLoop]: Abstraction has 455 states and 543 transitions. [2024-11-09 12:16:42,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:42,834 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 543 transitions. [2024-11-09 12:16:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 12:16:42,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:42,835 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:42,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-09 12:16:42,836 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting func_to_recursive_line_29_to_41_0Err48ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:42,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1173696761, now seen corresponding path program 1 times [2024-11-09 12:16:42,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:42,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856977621] [2024-11-09 12:16:42,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:42,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:43,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:43,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856977621] [2024-11-09 12:16:43,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856977621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:43,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:43,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:43,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007488857] [2024-11-09 12:16:43,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:43,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:43,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:43,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:43,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:43,196 INFO L87 Difference]: Start difference. First operand 455 states and 543 transitions. Second operand has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:43,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:43,424 INFO L93 Difference]: Finished difference Result 532 states and 552 transitions. [2024-11-09 12:16:43,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:43,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-09 12:16:43,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:43,426 INFO L225 Difference]: With dead ends: 532 [2024-11-09 12:16:43,426 INFO L226 Difference]: Without dead ends: 530 [2024-11-09 12:16:43,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:43,427 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 209 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:43,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 1427 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:43,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-09 12:16:43,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 457. [2024-11-09 12:16:43,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 293 states have (on average 1.7064846416382253) internal successors, (500), 431 states have internal predecessors, (500), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (23), 22 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-09 12:16:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 545 transitions. [2024-11-09 12:16:43,443 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 545 transitions. Word has length 85 [2024-11-09 12:16:43,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:43,443 INFO L471 AbstractCegarLoop]: Abstraction has 457 states and 545 transitions. [2024-11-09 12:16:43,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 545 transitions. [2024-11-09 12:16:43,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 12:16:43,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:43,445 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:43,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-09 12:16:43,445 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:43,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:43,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2024995937, now seen corresponding path program 1 times [2024-11-09 12:16:43,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:43,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579807655] [2024-11-09 12:16:43,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:43,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 12:16:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 12:16:43,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:16:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:16:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 12:16:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 12:16:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:43,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:43,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579807655] [2024-11-09 12:16:43,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579807655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:43,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:43,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:43,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383633170] [2024-11-09 12:16:43,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:43,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:43,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:43,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:43,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:43,707 INFO L87 Difference]: Start difference. First operand 457 states and 545 transitions. Second operand has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:43,874 INFO L93 Difference]: Finished difference Result 463 states and 547 transitions. [2024-11-09 12:16:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:16:43,874 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 86 [2024-11-09 12:16:43,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:43,876 INFO L225 Difference]: With dead ends: 463 [2024-11-09 12:16:43,877 INFO L226 Difference]: Without dead ends: 459 [2024-11-09 12:16:43,877 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:43,877 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 165 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:43,878 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 1028 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:43,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2024-11-09 12:16:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2024-11-09 12:16:43,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 294 states have (on average 1.6904761904761905) internal successors, (497), 432 states have internal predecessors, (497), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-09 12:16:43,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 543 transitions. [2024-11-09 12:16:43,892 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 543 transitions. Word has length 86 [2024-11-09 12:16:43,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:43,893 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 543 transitions. [2024-11-09 12:16:43,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:43,893 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 543 transitions. [2024-11-09 12:16:43,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 12:16:43,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:43,894 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:43,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 12:16:43,895 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting func_to_recursive_line_29_to_41_0Err50ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:43,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1653816233, now seen corresponding path program 1 times [2024-11-09 12:16:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:43,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558225458] [2024-11-09 12:16:43,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:43,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:43,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,259 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:44,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:44,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558225458] [2024-11-09 12:16:44,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558225458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:44,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:44,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:44,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049371769] [2024-11-09 12:16:44,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:44,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:44,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:44,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:44,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:44,263 INFO L87 Difference]: Start difference. First operand 459 states and 543 transitions. Second operand has 6 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:44,519 INFO L93 Difference]: Finished difference Result 540 states and 560 transitions. [2024-11-09 12:16:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:44,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 87 [2024-11-09 12:16:44,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:44,524 INFO L225 Difference]: With dead ends: 540 [2024-11-09 12:16:44,524 INFO L226 Difference]: Without dead ends: 538 [2024-11-09 12:16:44,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:44,526 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 215 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1397 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:44,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1397 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-09 12:16:44,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 461. [2024-11-09 12:16:44,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 296 states have (on average 1.6858108108108107) internal successors, (499), 434 states have internal predecessors, (499), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-09 12:16:44,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 545 transitions. [2024-11-09 12:16:44,547 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 545 transitions. Word has length 87 [2024-11-09 12:16:44,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:44,547 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 545 transitions. [2024-11-09 12:16:44,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:44,547 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 545 transitions. [2024-11-09 12:16:44,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-09 12:16:44,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:44,548 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:44,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-09 12:16:44,548 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting func_to_recursive_line_29_to_41_0Err52ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:44,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:44,548 INFO L85 PathProgramCache]: Analyzing trace with hash 179505227, now seen corresponding path program 1 times [2024-11-09 12:16:44,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:44,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327303782] [2024-11-09 12:16:44,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:44,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:44,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:44,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:44,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327303782] [2024-11-09 12:16:44,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327303782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:44,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:44,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:44,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206460727] [2024-11-09 12:16:44,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:44,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:44,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:44,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:44,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:44,769 INFO L87 Difference]: Start difference. First operand 461 states and 545 transitions. Second operand has 6 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:44,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:44,916 INFO L93 Difference]: Finished difference Result 550 states and 570 transitions. [2024-11-09 12:16:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:44,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2024-11-09 12:16:44,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:44,919 INFO L225 Difference]: With dead ends: 550 [2024-11-09 12:16:44,919 INFO L226 Difference]: Without dead ends: 548 [2024-11-09 12:16:44,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:44,920 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 225 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:44,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1443 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:44,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-11-09 12:16:44,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 463. [2024-11-09 12:16:44,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 298 states have (on average 1.6812080536912752) internal successors, (501), 436 states have internal predecessors, (501), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-09 12:16:44,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 547 transitions. [2024-11-09 12:16:44,945 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 547 transitions. Word has length 89 [2024-11-09 12:16:44,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:44,945 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 547 transitions. [2024-11-09 12:16:44,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-09 12:16:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 547 transitions. [2024-11-09 12:16:44,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 12:16:44,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:44,953 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:44,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-09 12:16:44,954 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:44,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:44,954 INFO L85 PathProgramCache]: Analyzing trace with hash -585186275, now seen corresponding path program 1 times [2024-11-09 12:16:44,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:44,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830312853] [2024-11-09 12:16:44,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:44,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:45,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,382 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:45,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:45,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830312853] [2024-11-09 12:16:45,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830312853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:16:45,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388646688] [2024-11-09 12:16:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:45,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:45,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:45,385 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) [2024-11-09 12:16:45,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 12:16:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:45,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 12:16:45,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:45,851 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 [2024-11-09 12:16:45,898 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 [2024-11-09 12:16:45,914 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:45,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:16:46,172 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:46,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388646688] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:16:46,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:16:46,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 20 [2024-11-09 12:16:46,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856753267] [2024-11-09 12:16:46,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:16:46,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-09 12:16:46,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:46,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-09 12:16:46,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=343, Unknown=0, NotChecked=0, Total=420 [2024-11-09 12:16:46,178 INFO L87 Difference]: Start difference. First operand 463 states and 547 transitions. Second operand has 21 states, 19 states have (on average 10.68421052631579) internal successors, (203), 17 states have internal predecessors, (203), 7 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 12:16:46,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:46,724 INFO L93 Difference]: Finished difference Result 466 states and 554 transitions. [2024-11-09 12:16:46,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 12:16:46,725 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 10.68421052631579) internal successors, (203), 17 states have internal predecessors, (203), 7 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 94 [2024-11-09 12:16:46,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:46,727 INFO L225 Difference]: With dead ends: 466 [2024-11-09 12:16:46,727 INFO L226 Difference]: Without dead ends: 463 [2024-11-09 12:16:46,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 177 SyntacticMatches, 11 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2024-11-09 12:16:46,728 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 826 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:46,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 3382 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:46,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-09 12:16:46,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 460. [2024-11-09 12:16:46,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 298 states have (on average 1.6711409395973154) internal successors, (498), 433 states have internal predecessors, (498), 22 states have call successors, (22), 4 states have call predecessors, (22), 5 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-09 12:16:46,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 544 transitions. [2024-11-09 12:16:46,746 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 544 transitions. Word has length 94 [2024-11-09 12:16:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:46,746 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 544 transitions. [2024-11-09 12:16:46,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 10.68421052631579) internal successors, (203), 17 states have internal predecessors, (203), 7 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-09 12:16:46,747 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 544 transitions. [2024-11-09 12:16:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 12:16:46,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:46,748 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:46,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 12:16:46,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-09 12:16:46,948 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:46,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:46,949 INFO L85 PathProgramCache]: Analyzing trace with hash -960905304, now seen corresponding path program 1 times [2024-11-09 12:16:46,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:46,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283207783] [2024-11-09 12:16:46,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:46,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:47,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:47,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:47,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:47,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283207783] [2024-11-09 12:16:47,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283207783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:16:47,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560517503] [2024-11-09 12:16:47,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:47,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:47,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:47,374 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) [2024-11-09 12:16:47,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 12:16:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:47,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-09 12:16:47,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:47,528 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 [2024-11-09 12:16:47,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 12:16:47,949 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 [2024-11-09 12:16:47,968 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 [2024-11-09 12:16:47,973 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:16:47,973 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:16:48,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2024-11-09 12:16:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 12:16:48,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560517503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 12:16:48,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 12:16:48,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 13, 12] total 28 [2024-11-09 12:16:48,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464545073] [2024-11-09 12:16:48,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 12:16:48,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 12:16:48,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:48,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 12:16:48,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-09 12:16:48,416 INFO L87 Difference]: Start difference. First operand 460 states and 544 transitions. Second operand has 29 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 12:16:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:49,667 INFO L93 Difference]: Finished difference Result 668 states and 697 transitions. [2024-11-09 12:16:49,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 12:16:49,668 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) Word has length 95 [2024-11-09 12:16:49,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:49,670 INFO L225 Difference]: With dead ends: 668 [2024-11-09 12:16:49,670 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 12:16:49,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 173 SyntacticMatches, 7 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=368, Invalid=2082, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 12:16:49,672 INFO L432 NwaCegarLoop]: 269 mSDtfsCounter, 1595 mSDsluCounter, 4478 mSDsCounter, 0 mSdLazyCounter, 995 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:49,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 4747 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 995 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 12:16:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 12:16:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 524. [2024-11-09 12:16:49,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 355 states have (on average 1.6788732394366197) internal successors, (596), 489 states have internal predecessors, (596), 28 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 658 transitions. [2024-11-09 12:16:49,697 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 658 transitions. Word has length 95 [2024-11-09 12:16:49,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:49,698 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 658 transitions. [2024-11-09 12:16:49,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 8.16) internal successors, (204), 24 states have internal predecessors, (204), 10 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (15), 3 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-09 12:16:49,698 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 658 transitions. [2024-11-09 12:16:49,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 12:16:49,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:49,699 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:49,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:49,899 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,SelfDestructingSolverStorable28 [2024-11-09 12:16:49,900 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:49,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:49,900 INFO L85 PathProgramCache]: Analyzing trace with hash 431466758, now seen corresponding path program 1 times [2024-11-09 12:16:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:49,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713129507] [2024-11-09 12:16:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:49,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:49,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 12:16:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 12:16:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:16:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:16:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 12:16:50,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 12:16:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 12:16:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 12:16:50,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:50,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713129507] [2024-11-09 12:16:50,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713129507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:50,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:50,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 12:16:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561452724] [2024-11-09 12:16:50,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:50,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 12:16:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 12:16:50,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 12:16:50,104 INFO L87 Difference]: Start difference. First operand 524 states and 658 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:50,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:50,428 INFO L93 Difference]: Finished difference Result 524 states and 658 transitions. [2024-11-09 12:16:50,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 12:16:50,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 96 [2024-11-09 12:16:50,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:50,431 INFO L225 Difference]: With dead ends: 524 [2024-11-09 12:16:50,431 INFO L226 Difference]: Without dead ends: 523 [2024-11-09 12:16:50,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:50,432 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 151 mSDsluCounter, 648 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:50,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 920 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:50,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2024-11-09 12:16:50,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 523. [2024-11-09 12:16:50,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 355 states have (on average 1.6732394366197183) internal successors, (594), 488 states have internal predecessors, (594), 28 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:50,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 656 transitions. [2024-11-09 12:16:50,455 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 656 transitions. Word has length 96 [2024-11-09 12:16:50,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:50,456 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 656 transitions. [2024-11-09 12:16:50,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 656 transitions. [2024-11-09 12:16:50,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 12:16:50,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:50,457 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:50,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-09 12:16:50,457 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:50,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:50,458 INFO L85 PathProgramCache]: Analyzing trace with hash 490567789, now seen corresponding path program 1 times [2024-11-09 12:16:50,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:50,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123616872] [2024-11-09 12:16:50,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:50,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:50,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 12:16:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 12:16:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:16:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:16:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 12:16:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 12:16:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 12:16:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 12:16:51,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:51,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123616872] [2024-11-09 12:16:51,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123616872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:51,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:51,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-09 12:16:51,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185269707] [2024-11-09 12:16:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:51,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 12:16:51,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:51,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 12:16:51,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-09 12:16:51,243 INFO L87 Difference]: Start difference. First operand 523 states and 656 transitions. Second operand has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 12:16:51,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:51,804 INFO L93 Difference]: Finished difference Result 536 states and 656 transitions. [2024-11-09 12:16:51,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 12:16:51,805 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 97 [2024-11-09 12:16:51,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:51,808 INFO L225 Difference]: With dead ends: 536 [2024-11-09 12:16:51,808 INFO L226 Difference]: Without dead ends: 535 [2024-11-09 12:16:51,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-09 12:16:51,809 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 292 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:51,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1930 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:51,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-09 12:16:51,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 523. [2024-11-09 12:16:51,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 355 states have (on average 1.6704225352112676) internal successors, (593), 488 states have internal predecessors, (593), 28 states have call successors, (28), 5 states have call predecessors, (28), 8 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:51,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 655 transitions. [2024-11-09 12:16:51,852 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 655 transitions. Word has length 97 [2024-11-09 12:16:51,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:51,853 INFO L471 AbstractCegarLoop]: Abstraction has 523 states and 655 transitions. [2024-11-09 12:16:51,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.555555555555555) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-09 12:16:51,853 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 655 transitions. [2024-11-09 12:16:51,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-09 12:16:51,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:51,856 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:51,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-09 12:16:51,857 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:51,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:51,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1972267544, now seen corresponding path program 1 times [2024-11-09 12:16:51,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:51,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187039819] [2024-11-09 12:16:51,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:51,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:51,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1907100700] [2024-11-09 12:16:51,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:51,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:51,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:51,898 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) [2024-11-09 12:16:51,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 12:16:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:52,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-09 12:16:52,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:52,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-09 12:16:52,062 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 [2024-11-09 12:16:52,082 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 [2024-11-09 12:16:54,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 12:16:54,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 69 [2024-11-09 12:16:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:54,696 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:54,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:54,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187039819] [2024-11-09 12:16:54,697 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:54,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907100700] [2024-11-09 12:16:54,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907100700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:54,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:54,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-09 12:16:54,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743158815] [2024-11-09 12:16:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:54,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 12:16:54,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:54,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 12:16:54,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-09 12:16:54,699 INFO L87 Difference]: Start difference. First operand 523 states and 655 transitions. Second operand has 12 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 12:16:55,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:55,563 INFO L93 Difference]: Finished difference Result 622 states and 690 transitions. [2024-11-09 12:16:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 12:16:55,564 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 98 [2024-11-09 12:16:55,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:55,569 INFO L225 Difference]: With dead ends: 622 [2024-11-09 12:16:55,569 INFO L226 Difference]: Without dead ends: 621 [2024-11-09 12:16:55,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2024-11-09 12:16:55,570 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 593 mSDsluCounter, 1973 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:55,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2241 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 12:16:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states. [2024-11-09 12:16:55,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 527. [2024-11-09 12:16:55,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 358 states have (on average 1.6620111731843576) internal successors, (595), 491 states have internal predecessors, (595), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 657 transitions. [2024-11-09 12:16:55,601 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 657 transitions. Word has length 98 [2024-11-09 12:16:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:55,602 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 657 transitions. [2024-11-09 12:16:55,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 7.2) internal successors, (72), 11 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-09 12:16:55,602 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 657 transitions. [2024-11-09 12:16:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-09 12:16:55,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:55,603 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:55,623 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:55,804 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,SelfDestructingSolverStorable31 [2024-11-09 12:16:55,805 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:55,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1010751537, now seen corresponding path program 1 times [2024-11-09 12:16:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:55,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787969910] [2024-11-09 12:16:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:55,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935367042] [2024-11-09 12:16:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:55,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:55,830 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) [2024-11-09 12:16:55,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 12:16:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:55,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 12:16:55,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:55,993 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 [2024-11-09 12:16:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:56,096 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:56,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787969910] [2024-11-09 12:16:56,097 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:56,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935367042] [2024-11-09 12:16:56,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935367042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:56,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:56,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:56,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395769913] [2024-11-09 12:16:56,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:56,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:56,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:56,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:56,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:56,098 INFO L87 Difference]: Start difference. First operand 527 states and 657 transitions. Second operand has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:56,374 INFO L93 Difference]: Finished difference Result 621 states and 689 transitions. [2024-11-09 12:16:56,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:16:56,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2024-11-09 12:16:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:56,377 INFO L225 Difference]: With dead ends: 621 [2024-11-09 12:16:56,377 INFO L226 Difference]: Without dead ends: 620 [2024-11-09 12:16:56,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:56,377 INFO L432 NwaCegarLoop]: 282 mSDtfsCounter, 289 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:56,378 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1288 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 12:16:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2024-11-09 12:16:56,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 527. [2024-11-09 12:16:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 358 states have (on average 1.6592178770949721) internal successors, (594), 491 states have internal predecessors, (594), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 656 transitions. [2024-11-09 12:16:56,408 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 656 transitions. Word has length 99 [2024-11-09 12:16:56,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:56,409 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 656 transitions. [2024-11-09 12:16:56,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.6) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 656 transitions. [2024-11-09 12:16:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-09 12:16:56,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:56,410 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:56,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 12:16:56,611 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,SelfDestructingSolverStorable32 [2024-11-09 12:16:56,612 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:56,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:56,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1268526390, now seen corresponding path program 1 times [2024-11-09 12:16:56,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:56,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460815447] [2024-11-09 12:16:56,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:56,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:56,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521168222] [2024-11-09 12:16:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:56,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:56,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:56,646 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) [2024-11-09 12:16:56,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 12:16:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:56,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 12:16:56,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:56,801 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 [2024-11-09 12:16:56,920 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:56,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:56,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460815447] [2024-11-09 12:16:56,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:56,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521168222] [2024-11-09 12:16:56,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521168222] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:56,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:56,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:56,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423755299] [2024-11-09 12:16:56,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:56,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:56,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:56,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:56,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:56,923 INFO L87 Difference]: Start difference. First operand 527 states and 656 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:57,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:57,235 INFO L93 Difference]: Finished difference Result 620 states and 688 transitions. [2024-11-09 12:16:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:16:57,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2024-11-09 12:16:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:57,238 INFO L225 Difference]: With dead ends: 620 [2024-11-09 12:16:57,238 INFO L226 Difference]: Without dead ends: 618 [2024-11-09 12:16:57,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 95 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:16:57,239 INFO L432 NwaCegarLoop]: 281 mSDtfsCounter, 282 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:57,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1285 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:57,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2024-11-09 12:16:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 527. [2024-11-09 12:16:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 358 states have (on average 1.6536312849162011) internal successors, (592), 491 states have internal predecessors, (592), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:57,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 654 transitions. [2024-11-09 12:16:57,269 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 654 transitions. Word has length 100 [2024-11-09 12:16:57,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:57,269 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 654 transitions. [2024-11-09 12:16:57,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 654 transitions. [2024-11-09 12:16:57,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-09 12:16:57,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:57,270 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:57,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 12:16:57,471 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,SelfDestructingSolverStorable33 [2024-11-09 12:16:57,471 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:57,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:57,471 INFO L85 PathProgramCache]: Analyzing trace with hash 716857260, now seen corresponding path program 1 times [2024-11-09 12:16:57,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:57,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405397711] [2024-11-09 12:16:57,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:57,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:57,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1574654375] [2024-11-09 12:16:57,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:57,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:57,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:57,506 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) [2024-11-09 12:16:57,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 12:16:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:57,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 12:16:57,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:16:57,658 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 [2024-11-09 12:16:57,662 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 [2024-11-09 12:16:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 12:16:57,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 12:16:57,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:57,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405397711] [2024-11-09 12:16:57,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:16:57,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574654375] [2024-11-09 12:16:57,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574654375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:57,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:57,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:16:57,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125283294] [2024-11-09 12:16:57,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:57,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:16:57,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:57,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:16:57,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:57,904 INFO L87 Difference]: Start difference. First operand 527 states and 654 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:58,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:58,353 INFO L93 Difference]: Finished difference Result 618 states and 686 transitions. [2024-11-09 12:16:58,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 12:16:58,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2024-11-09 12:16:58,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:58,356 INFO L225 Difference]: With dead ends: 618 [2024-11-09 12:16:58,356 INFO L226 Difference]: Without dead ends: 616 [2024-11-09 12:16:58,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-09 12:16:58,357 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 289 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:58,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1322 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 12:16:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2024-11-09 12:16:58,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 527. [2024-11-09 12:16:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 358 states have (on average 1.6480446927374302) internal successors, (590), 491 states have internal predecessors, (590), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:58,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 652 transitions. [2024-11-09 12:16:58,381 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 652 transitions. Word has length 102 [2024-11-09 12:16:58,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:58,383 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 652 transitions. [2024-11-09 12:16:58,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 7 states have internal predecessors, (76), 2 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 652 transitions. [2024-11-09 12:16:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 12:16:58,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:58,384 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:58,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-09 12:16:58,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:58,585 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting func_to_recursive_line_29_to_41_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:58,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:58,585 INFO L85 PathProgramCache]: Analyzing trace with hash 252653036, now seen corresponding path program 1 times [2024-11-09 12:16:58,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:58,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987466925] [2024-11-09 12:16:58,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:58,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:58,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:58,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 12:16:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:58,720 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 12:16:58,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:58,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987466925] [2024-11-09 12:16:58,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987466925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:58,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:58,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:58,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301410592] [2024-11-09 12:16:58,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:58,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:58,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:58,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:58,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:58,723 INFO L87 Difference]: Start difference. First operand 527 states and 652 transitions. Second operand has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:58,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:58,906 INFO L93 Difference]: Finished difference Result 527 states and 652 transitions. [2024-11-09 12:16:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:58,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 104 [2024-11-09 12:16:58,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:58,909 INFO L225 Difference]: With dead ends: 527 [2024-11-09 12:16:58,910 INFO L226 Difference]: Without dead ends: 526 [2024-11-09 12:16:58,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:58,911 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 105 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:58,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1311 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:58,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-09 12:16:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2024-11-09 12:16:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 358 states have (on average 1.6424581005586592) internal successors, (588), 490 states have internal predecessors, (588), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:58,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 650 transitions. [2024-11-09 12:16:58,936 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 650 transitions. Word has length 104 [2024-11-09 12:16:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:58,936 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 650 transitions. [2024-11-09 12:16:58,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 650 transitions. [2024-11-09 12:16:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 12:16:58,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:58,938 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:58,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-09 12:16:58,938 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:58,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:58,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1705065614, now seen corresponding path program 1 times [2024-11-09 12:16:58,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:58,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224196648] [2024-11-09 12:16:58,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:58,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 12:16:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 12:16:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:16:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:16:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 12:16:59,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 12:16:59,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 12:16:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 12:16:59,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:59,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224196648] [2024-11-09 12:16:59,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224196648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:59,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:59,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:59,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144520060] [2024-11-09 12:16:59,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:59,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:59,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:59,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:59,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:59,209 INFO L87 Difference]: Start difference. First operand 526 states and 650 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:59,511 INFO L93 Difference]: Finished difference Result 587 states and 655 transitions. [2024-11-09 12:16:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 104 [2024-11-09 12:16:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:59,515 INFO L225 Difference]: With dead ends: 587 [2024-11-09 12:16:59,515 INFO L226 Difference]: Without dead ends: 585 [2024-11-09 12:16:59,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:59,516 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 228 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:59,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1125 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 12:16:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-09 12:16:59,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 526. [2024-11-09 12:16:59,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 358 states have (on average 1.6368715083798884) internal successors, (586), 490 states have internal predecessors, (586), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:59,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 648 transitions. [2024-11-09 12:16:59,544 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 648 transitions. Word has length 104 [2024-11-09 12:16:59,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:59,545 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 648 transitions. [2024-11-09 12:16:59,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:16:59,545 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 648 transitions. [2024-11-09 12:16:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 12:16:59,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:59,550 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:59,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 12:16:59,550 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting func_to_recursive_line_29_to_41_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:59,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -757690429, now seen corresponding path program 1 times [2024-11-09 12:16:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:59,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920105066] [2024-11-09 12:16:59,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:59,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-09 12:16:59,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 12:16:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-09 12:16:59,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-09 12:16:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-09 12:16:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-09 12:16:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:16:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-09 12:16:59,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:16:59,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920105066] [2024-11-09 12:16:59,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920105066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:16:59,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:16:59,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 12:16:59,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909605527] [2024-11-09 12:16:59,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:16:59,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 12:16:59,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:16:59,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 12:16:59,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 12:16:59,679 INFO L87 Difference]: Start difference. First operand 526 states and 648 transitions. Second operand has 6 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:59,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:16:59,799 INFO L93 Difference]: Finished difference Result 526 states and 648 transitions. [2024-11-09 12:16:59,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 12:16:59,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 105 [2024-11-09 12:16:59,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:16:59,802 INFO L225 Difference]: With dead ends: 526 [2024-11-09 12:16:59,802 INFO L226 Difference]: Without dead ends: 525 [2024-11-09 12:16:59,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:16:59,803 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 102 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 12:16:59,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1040 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 12:16:59,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2024-11-09 12:16:59,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2024-11-09 12:16:59,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 358 states have (on average 1.6312849162011174) internal successors, (584), 489 states have internal predecessors, (584), 28 states have call successors, (28), 6 states have call predecessors, (28), 9 states have return successors, (34), 29 states have call predecessors, (34), 28 states have call successors, (34) [2024-11-09 12:16:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 646 transitions. [2024-11-09 12:16:59,828 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 646 transitions. Word has length 105 [2024-11-09 12:16:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:16:59,829 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 646 transitions. [2024-11-09 12:16:59,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 12:16:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 646 transitions. [2024-11-09 12:16:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 12:16:59,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:16:59,830 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:16:59,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-09 12:16:59,830 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting func_to_recursive_line_29_to_41_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:16:59,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:16:59,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2013566770, now seen corresponding path program 1 times [2024-11-09 12:16:59,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:16:59,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791634476] [2024-11-09 12:16:59,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:59,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:16:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:16:59,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381968525] [2024-11-09 12:16:59,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:16:59,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:16:59,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:16:59,860 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) [2024-11-09 12:16:59,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 12:17:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:00,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-09 12:17:00,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:17:00,037 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 [2024-11-09 12:17:00,321 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 [2024-11-09 12:17:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 12:17:00,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 12:17:00,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:00,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791634476] [2024-11-09 12:17:00,681 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 12:17:00,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381968525] [2024-11-09 12:17:00,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381968525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 12:17:00,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 12:17:00,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-09 12:17:00,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099505030] [2024-11-09 12:17:00,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 12:17:00,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 12:17:00,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 12:17:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2024-11-09 12:17:00,683 INFO L87 Difference]: Start difference. First operand 525 states and 646 transitions. Second operand has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 12:17:01,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:01,683 INFO L93 Difference]: Finished difference Result 836 states and 865 transitions. [2024-11-09 12:17:01,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 12:17:01,684 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 106 [2024-11-09 12:17:01,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:01,686 INFO L225 Difference]: With dead ends: 836 [2024-11-09 12:17:01,686 INFO L226 Difference]: Without dead ends: 835 [2024-11-09 12:17:01,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 82 SyntacticMatches, 8 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=170, Invalid=1090, Unknown=0, NotChecked=0, Total=1260 [2024-11-09 12:17:01,687 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 824 mSDsluCounter, 5412 mSDsCounter, 0 mSdLazyCounter, 1280 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 5883 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:01,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 5883 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1280 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 12:17:01,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-09 12:17:01,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 607. [2024-11-09 12:17:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 434 states have (on average 1.672811059907834) internal successors, (726), 565 states have internal predecessors, (726), 33 states have call successors, (33), 7 states have call predecessors, (33), 10 states have return successors, (39), 34 states have call predecessors, (39), 33 states have call successors, (39) [2024-11-09 12:17:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 798 transitions. [2024-11-09 12:17:01,719 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 798 transitions. Word has length 106 [2024-11-09 12:17:01,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:01,719 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 798 transitions. [2024-11-09 12:17:01,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 4.882352941176471) internal successors, (83), 16 states have internal predecessors, (83), 5 states have call successors, (8), 5 states have call predecessors, (8), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-09 12:17:01,719 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 798 transitions. [2024-11-09 12:17:01,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 12:17:01,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:01,720 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:01,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 12:17:01,924 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,SelfDestructingSolverStorable38 [2024-11-09 12:17:01,925 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:17:01,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:01,925 INFO L85 PathProgramCache]: Analyzing trace with hash -2109445776, now seen corresponding path program 1 times [2024-11-09 12:17:01,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:01,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860823805] [2024-11-09 12:17:01,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:01,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 12:17:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-09 12:17:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-09 12:17:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 12:17:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-09 12:17:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-09 12:17:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-09 12:17:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 12:17:02,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 12:17:02,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860823805] [2024-11-09 12:17:02,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860823805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 12:17:02,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 12:17:02,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 12:17:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704181589] [2024-11-09 12:17:02,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 12:17:02,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 12:17:02,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 12:17:02,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 12:17:02,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 12:17:02,236 INFO L87 Difference]: Start difference. First operand 607 states and 798 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:17:03,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 12:17:03,045 INFO L93 Difference]: Finished difference Result 666 states and 803 transitions. [2024-11-09 12:17:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 12:17:03,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2024-11-09 12:17:03,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 12:17:03,047 INFO L225 Difference]: With dead ends: 666 [2024-11-09 12:17:03,047 INFO L226 Difference]: Without dead ends: 665 [2024-11-09 12:17:03,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-09 12:17:03,048 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 224 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 12:17:03,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1356 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 12:17:03,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-09 12:17:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 607. [2024-11-09 12:17:03,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 434 states have (on average 1.6705069124423964) internal successors, (725), 565 states have internal predecessors, (725), 33 states have call successors, (33), 7 states have call predecessors, (33), 10 states have return successors, (39), 34 states have call predecessors, (39), 33 states have call successors, (39) [2024-11-09 12:17:03,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 797 transitions. [2024-11-09 12:17:03,079 INFO L78 Accepts]: Start accepts. Automaton has 607 states and 797 transitions. Word has length 106 [2024-11-09 12:17:03,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 12:17:03,079 INFO L471 AbstractCegarLoop]: Abstraction has 607 states and 797 transitions. [2024-11-09 12:17:03,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 12:17:03,080 INFO L276 IsEmpty]: Start isEmpty. Operand 607 states and 797 transitions. [2024-11-09 12:17:03,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 12:17:03,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 12:17:03,081 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 12:17:03,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-09 12:17:03,081 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting func_to_recursive_line_29_to_41_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_29_to_41_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_29_to_41_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 136 more)] === [2024-11-09 12:17:03,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 12:17:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash 2003939621, now seen corresponding path program 1 times [2024-11-09 12:17:03,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 12:17:03,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131614684] [2024-11-09 12:17:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 12:17:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 12:17:03,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581850632] [2024-11-09 12:17:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 12:17:03,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 12:17:03,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 12:17:03,112 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) [2024-11-09 12:17:03,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 12:17:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 12:17:03,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-09 12:17:03,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 12:17:03,298 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 [2024-11-09 12:17:03,301 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 [2024-11-09 12:17:03,709 INFO L349 Elim1Store]: treesize reduction 29, result has 34.1 percent of original size [2024-11-09 12:17:03,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 29