./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2-ll2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2-ll2.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 0e4188e08c3f48775d359529becc8db180857d5f7b1b125f480e88f6efe9d6c3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 11:12:47,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 11:12:47,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 11:12:47,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 11:12:47,288 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 11:12:47,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 11:12:47,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 11:12:47,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 11:12:47,307 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 11:12:47,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 11:12:47,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 11:12:47,308 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 11:12:47,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 11:12:47,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 11:12:47,309 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 11:12:47,310 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 11:12:47,310 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 11:12:47,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 11:12:47,311 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 11:12:47,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 11:12:47,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 11:12:47,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 11:12:47,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 11:12:47,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 11:12:47,317 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 11:12:47,317 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 11:12:47,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 11:12:47,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 11:12:47,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 11:12:47,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 11:12:47,318 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 11:12:47,319 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 11:12:47,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 11:12:47,319 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 11:12:47,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:12:47,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 11:12:47,320 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 11:12:47,320 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 11:12:47,321 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 11:12:47,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 11:12:47,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 11:12:47,322 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 11:12:47,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 11:12:47,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 11:12:47,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e4188e08c3f48775d359529becc8db180857d5f7b1b125f480e88f6efe9d6c3 [2024-11-19 11:12:47,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 11:12:47,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 11:12:47,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 11:12:47,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 11:12:47,582 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 11:12:47,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursified_nla-digbench/recursified_geo2-ll2.c [2024-11-19 11:12:49,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 11:12:49,267 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 11:12:49,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursified_nla-digbench/recursified_geo2-ll2.c [2024-11-19 11:12:49,273 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3cf7e6c/eee95f8f00b94b77b0b14f24fe03ada0/FLAGb83fb5f2d [2024-11-19 11:12:49,285 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb3cf7e6c/eee95f8f00b94b77b0b14f24fe03ada0 [2024-11-19 11:12:49,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 11:12:49,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 11:12:49,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 11:12:49,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 11:12:49,296 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 11:12:49,297 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f2b12f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49, skipping insertion in model container [2024-11-19 11:12:49,298 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 11:12:49,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:12:49,533 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 11:12:49,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 11:12:49,565 INFO L204 MainTranslator]: Completed translation [2024-11-19 11:12:49,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49 WrapperNode [2024-11-19 11:12:49,566 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 11:12:49,567 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 11:12:49,567 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 11:12:49,567 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 11:12:49,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,596 INFO L138 Inliner]: procedures = 16, calls = 52, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-19 11:12:49,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 11:12:49,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 11:12:49,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 11:12:49,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 11:12:49,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,610 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,626 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 4, 5, 7, 2, 7]. 26 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 8 writes are split as follows [0, 2, 2, 2, 1, 1]. [2024-11-19 11:12:49,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,636 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,638 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,639 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,642 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 11:12:49,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 11:12:49,643 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 11:12:49,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 11:12:49,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (1/1) ... [2024-11-19 11:12:49,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 11:12:49,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:49,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 11:12:49,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 11:12:49,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 11:12:49,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 11:12:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 11:12:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 11:12:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 11:12:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 11:12:49,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 11:12:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_30_to_38_0 [2024-11-19 11:12:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_30_to_38_0 [2024-11-19 11:12:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 11:12:49,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 11:12:49,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 11:12:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 11:12:49,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 11:12:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 11:12:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 11:12:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 11:12:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 11:12:49,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 11:12:49,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 11:12:49,859 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 11:12:49,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 11:12:50,220 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-11-19 11:12:50,220 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 11:12:50,245 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 11:12:50,245 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 11:12:50,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:12:50 BoogieIcfgContainer [2024-11-19 11:12:50,246 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 11:12:50,249 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 11:12:50,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 11:12:50,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 11:12:50,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:12:49" (1/3) ... [2024-11-19 11:12:50,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8b4b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:12:50, skipping insertion in model container [2024-11-19 11:12:50,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:12:49" (2/3) ... [2024-11-19 11:12:50,255 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c8b4b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:12:50, skipping insertion in model container [2024-11-19 11:12:50,255 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:12:50" (3/3) ... [2024-11-19 11:12:50,257 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo2-ll2.c [2024-11-19 11:12:50,280 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 11:12:50,280 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-19 11:12:50,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 11:12:50,357 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;@6d7dfe4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 11:12:50,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2024-11-19 11:12:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-19 11:12:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-19 11:12:50,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:50,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-19 11:12:50,368 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:50,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:50,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1895540477, now seen corresponding path program 1 times [2024-11-19 11:12:50,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:50,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336879949] [2024-11-19 11:12:50,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:50,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:50,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1754591184] [2024-11-19 11:12:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:50,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:50,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:50,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:50,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 11:12:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:50,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 11:12:50,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:50,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:50,785 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 [2024-11-19 11:12:50,873 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:12:50,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:50,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:50,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:50,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336879949] [2024-11-19 11:12:50,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:50,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754591184] [2024-11-19 11:12:50,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754591184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:50,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:50,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:12:50,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151939552] [2024-11-19 11:12:50,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:50,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:12:50,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:12:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:12:50,924 INFO L87 Difference]: Start difference. First operand has 79 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 73 states have internal predecessors, (75), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2024-11-19 11:12:51,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:51,198 INFO L93 Difference]: Finished difference Result 200 states and 217 transitions. [2024-11-19 11:12:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:12:51,201 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 [2024-11-19 11:12:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:51,211 INFO L225 Difference]: With dead ends: 200 [2024-11-19 11:12:51,211 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 11:12:51,215 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:51,218 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 89 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:51,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 300 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:12:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 11:12:51,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 89. [2024-11-19 11:12:51,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.6851851851851851) internal successors, (91), 82 states have internal predecessors, (91), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:51,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 100 transitions. [2024-11-19 11:12:51,260 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 100 transitions. Word has length 6 [2024-11-19 11:12:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:51,260 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 100 transitions. [2024-11-19 11:12:51,261 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) [2024-11-19 11:12:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 100 transitions. [2024-11-19 11:12:51,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-19 11:12:51,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:51,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:51,282 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 11:12:51,468 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,SelfDestructingSolverStorable0 [2024-11-19 11:12:51,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:51,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:51,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1367787394, now seen corresponding path program 1 times [2024-11-19 11:12:51,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:51,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881223310] [2024-11-19 11:12:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:51,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:51,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:51,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884421109] [2024-11-19 11:12:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:51,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:51,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:51,513 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:51,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 11:12:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:51,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-19 11:12:51,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:51,618 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 [2024-11-19 11:12:51,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:51,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:12:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:51,720 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:51,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881223310] [2024-11-19 11:12:51,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:51,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884421109] [2024-11-19 11:12:51,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884421109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:51,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:51,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:12:51,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23144733] [2024-11-19 11:12:51,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:51,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:12:51,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:51,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:12:51,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:12:51,724 INFO L87 Difference]: Start difference. First operand 89 states and 100 transitions. Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:51,975 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2024-11-19 11:12:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:12:51,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 7 [2024-11-19 11:12:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:51,977 INFO L225 Difference]: With dead ends: 118 [2024-11-19 11:12:51,977 INFO L226 Difference]: Without dead ends: 116 [2024-11-19 11:12:51,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:51,978 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 84 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:51,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 271 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:12:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-19 11:12:51,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 89. [2024-11-19 11:12:51,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.6481481481481481) internal successors, (89), 82 states have internal predecessors, (89), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:51,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 98 transitions. [2024-11-19 11:12:51,997 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 98 transitions. Word has length 7 [2024-11-19 11:12:51,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:51,998 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 98 transitions. [2024-11-19 11:12:51,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:51,998 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 98 transitions. [2024-11-19 11:12:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-19 11:12:51,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:51,998 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:52,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 11:12:52,199 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,SelfDestructingSolverStorable1 [2024-11-19 11:12:52,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting func_to_recursive_line_30_to_38_0Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:52,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:52,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1399556295, now seen corresponding path program 1 times [2024-11-19 11:12:52,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:52,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371140886] [2024-11-19 11:12:52,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:52,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:52,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:52,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371140886] [2024-11-19 11:12:52,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371140886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:52,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:52,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:12:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464704758] [2024-11-19 11:12:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:52,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:12:52,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:12:52,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:12:52,629 INFO L87 Difference]: Start difference. First operand 89 states and 98 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:52,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:52,886 INFO L93 Difference]: Finished difference Result 116 states and 119 transitions. [2024-11-19 11:12:52,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:12:52,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 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 10 [2024-11-19 11:12:52,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:52,888 INFO L225 Difference]: With dead ends: 116 [2024-11-19 11:12:52,888 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 11:12:52,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:12:52,889 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 75 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:52,890 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 326 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:12:52,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 11:12:52,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 89. [2024-11-19 11:12:52,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 82 states have internal predecessors, (88), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 97 transitions. [2024-11-19 11:12:52,905 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 97 transitions. Word has length 10 [2024-11-19 11:12:52,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:52,905 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 97 transitions. [2024-11-19 11:12:52,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 97 transitions. [2024-11-19 11:12:52,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 11:12:52,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:52,906 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:52,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 11:12:52,906 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting func_to_recursive_line_30_to_38_0Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:52,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:52,908 INFO L85 PathProgramCache]: Analyzing trace with hash 436572230, now seen corresponding path program 1 times [2024-11-19 11:12:52,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:52,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596023757] [2024-11-19 11:12:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:52,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:53,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:53,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596023757] [2024-11-19 11:12:53,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596023757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:53,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:53,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:12:53,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977380679] [2024-11-19 11:12:53,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:53,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:12:53,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:53,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:12:53,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:12:53,175 INFO L87 Difference]: Start difference. First operand 89 states and 97 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:53,485 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2024-11-19 11:12:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:12:53,485 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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 11 [2024-11-19 11:12:53,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:53,486 INFO L225 Difference]: With dead ends: 115 [2024-11-19 11:12:53,486 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 11:12:53,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:53,488 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 72 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:53,488 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 286 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 11:12:53,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 11:12:53,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 89. [2024-11-19 11:12:53,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 82 states have internal predecessors, (87), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:53,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 96 transitions. [2024-11-19 11:12:53,502 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 96 transitions. Word has length 11 [2024-11-19 11:12:53,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:53,503 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 96 transitions. [2024-11-19 11:12:53,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:53,503 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 96 transitions. [2024-11-19 11:12:53,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-19 11:12:53,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:53,506 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:53,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 11:12:53,507 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting func_to_recursive_line_30_to_38_0Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:53,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:53,507 INFO L85 PathProgramCache]: Analyzing trace with hash 648837289, now seen corresponding path program 1 times [2024-11-19 11:12:53,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:53,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672066331] [2024-11-19 11:12:53,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:53,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:53,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:53,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854005001] [2024-11-19 11:12:53,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:53,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:53,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:53,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:53,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 11:12:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:53,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 11:12:53,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:53,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:53,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:53,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:12:53,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:53,925 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:53,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672066331] [2024-11-19 11:12:53,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:53,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854005001] [2024-11-19 11:12:53,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854005001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:53,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:53,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:12:53,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870692553] [2024-11-19 11:12:53,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:53,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:12:53,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:53,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:12:53,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:53,928 INFO L87 Difference]: Start difference. First operand 89 states and 96 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:54,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:54,269 INFO L93 Difference]: Finished difference Result 118 states and 121 transitions. [2024-11-19 11:12:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 11:12:54,270 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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 12 [2024-11-19 11:12:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:54,273 INFO L225 Difference]: With dead ends: 118 [2024-11-19 11:12:54,274 INFO L226 Difference]: Without dead ends: 117 [2024-11-19 11:12:54,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:12:54,275 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 109 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:54,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 370 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:12:54,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-19 11:12:54,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 89. [2024-11-19 11:12:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.5925925925925926) internal successors, (86), 82 states have internal predecessors, (86), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2024-11-19 11:12:54,289 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 12 [2024-11-19 11:12:54,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:54,289 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2024-11-19 11:12:54,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:54,289 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2024-11-19 11:12:54,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-19 11:12:54,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:54,290 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:54,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 11:12:54,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:54,495 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting func_to_recursive_line_30_to_38_0Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:54,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:54,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1360880472, now seen corresponding path program 1 times [2024-11-19 11:12:54,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:54,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753441640] [2024-11-19 11:12:54,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:54,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:54,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299822479] [2024-11-19 11:12:54,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:54,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:54,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:54,517 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:54,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 11:12:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:54,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-19 11:12:54,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:54,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:54,619 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 [2024-11-19 11:12:54,682 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:12:54,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:54,695 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:54,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:54,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753441640] [2024-11-19 11:12:54,696 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:54,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299822479] [2024-11-19 11:12:54,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299822479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:54,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:54,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:12:54,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090348145] [2024-11-19 11:12:54,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:54,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:12:54,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:54,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:12:54,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:12:54,708 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:54,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:54,821 INFO L93 Difference]: Finished difference Result 121 states and 124 transitions. [2024-11-19 11:12:54,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:12:54,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 13 [2024-11-19 11:12:54,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:54,822 INFO L225 Difference]: With dead ends: 121 [2024-11-19 11:12:54,823 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 11:12:54,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:54,824 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 74 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:54,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 288 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:12:54,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 11:12:54,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 89. [2024-11-19 11:12:54,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.5740740740740742) internal successors, (85), 82 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:54,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2024-11-19 11:12:54,832 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 13 [2024-11-19 11:12:54,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:54,832 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2024-11-19 11:12:54,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2024-11-19 11:12:54,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-19 11:12:54,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:54,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:54,850 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 11:12:55,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:55,034 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting func_to_recursive_line_30_to_38_0Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:55,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:55,034 INFO L85 PathProgramCache]: Analyzing trace with hash 762378379, now seen corresponding path program 1 times [2024-11-19 11:12:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:55,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046113784] [2024-11-19 11:12:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:55,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:55,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [456278914] [2024-11-19 11:12:55,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:55,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:55,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:55,053 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:55,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 11:12:55,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:55,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-19 11:12:55,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:55,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:55,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:55,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:12:55,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:55,318 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046113784] [2024-11-19 11:12:55,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456278914] [2024-11-19 11:12:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456278914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:55,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:55,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:12:55,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586276904] [2024-11-19 11:12:55,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:55,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:12:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:12:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:55,324 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:55,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:55,564 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2024-11-19 11:12:55,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:12:55,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 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 14 [2024-11-19 11:12:55,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:55,565 INFO L225 Difference]: With dead ends: 112 [2024-11-19 11:12:55,565 INFO L226 Difference]: Without dead ends: 110 [2024-11-19 11:12:55,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-19 11:12:55,566 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 71 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:55,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 325 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:12:55,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-19 11:12:55,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 89. [2024-11-19 11:12:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 54 states have (on average 1.537037037037037) internal successors, (83), 82 states have internal predecessors, (83), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2024-11-19 11:12:55,576 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 14 [2024-11-19 11:12:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:55,576 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2024-11-19 11:12:55,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 11:12:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2024-11-19 11:12:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-19 11:12:55,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:55,577 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] [2024-11-19 11:12:55,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 11:12:55,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:55,782 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting func_to_recursive_line_30_to_38_0Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:55,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 418095421, now seen corresponding path program 1 times [2024-11-19 11:12:55,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:55,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066321808] [2024-11-19 11:12:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:55,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:55,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:55,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066321808] [2024-11-19 11:12:55,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066321808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:55,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:55,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:12:55,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200117583] [2024-11-19 11:12:55,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:55,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:12:55,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:55,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:12:55,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:12:55,958 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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) [2024-11-19 11:12:56,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:56,038 INFO L93 Difference]: Finished difference Result 114 states and 116 transitions. [2024-11-19 11:12:56,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:12:56,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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 [2024-11-19 11:12:56,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:56,039 INFO L225 Difference]: With dead ends: 114 [2024-11-19 11:12:56,039 INFO L226 Difference]: Without dead ends: 113 [2024-11-19 11:12:56,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:12:56,040 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 44 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:56,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 380 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:12:56,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-19 11:12:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 90. [2024-11-19 11:12:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 83 states have internal predecessors, (84), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 93 transitions. [2024-11-19 11:12:56,047 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 93 transitions. Word has length 23 [2024-11-19 11:12:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:56,047 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 93 transitions. [2024-11-19 11:12:56,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.0) internal successors, (20), 6 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) [2024-11-19 11:12:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 93 transitions. [2024-11-19 11:12:56,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-19 11:12:56,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:56,050 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:56,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 11:12:56,050 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting func_to_recursive_line_30_to_38_0Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:56,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:56,051 INFO L85 PathProgramCache]: Analyzing trace with hash 76056226, now seen corresponding path program 1 times [2024-11-19 11:12:56,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:56,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283147772] [2024-11-19 11:12:56,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:56,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:56,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:56,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283147772] [2024-11-19 11:12:56,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283147772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:56,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:56,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:12:56,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656988360] [2024-11-19 11:12:56,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:56,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:12:56,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:56,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:12:56,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:12:56,243 INFO L87 Difference]: Start difference. First operand 90 states and 93 transitions. Second operand has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:12:56,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:56,323 INFO L93 Difference]: Finished difference Result 90 states and 93 transitions. [2024-11-19 11:12:56,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:12:56,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-19 11:12:56,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:56,326 INFO L225 Difference]: With dead ends: 90 [2024-11-19 11:12:56,326 INFO L226 Difference]: Without dead ends: 89 [2024-11-19 11:12:56,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:12:56,327 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 90 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:56,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 272 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 11:12:56,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-19 11:12:56,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-19 11:12:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 55 states have (on average 1.509090909090909) internal successors, (83), 82 states have internal predecessors, (83), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:56,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 92 transitions. [2024-11-19 11:12:56,339 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 92 transitions. Word has length 24 [2024-11-19 11:12:56,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:56,339 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 92 transitions. [2024-11-19 11:12:56,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:12:56,340 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 92 transitions. [2024-11-19 11:12:56,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 11:12:56,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:56,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:56,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 11:12:56,341 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting func_to_recursive_line_30_to_38_0Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:56,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:56,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1937224225, now seen corresponding path program 1 times [2024-11-19 11:12:56,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:56,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662785104] [2024-11-19 11:12:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:56,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:56,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202459685] [2024-11-19 11:12:56,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:56,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:56,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:56,369 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:56,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 11:12:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:56,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-19 11:12:56,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:56,478 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 [2024-11-19 11:12:56,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:56,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:12:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:56,637 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:56,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:56,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662785104] [2024-11-19 11:12:56,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:56,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202459685] [2024-11-19 11:12:56,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202459685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:56,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:56,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:12:56,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000210140] [2024-11-19 11:12:56,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:56,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:12:56,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:12:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:12:56,639 INFO L87 Difference]: Start difference. First operand 89 states and 92 transitions. Second operand has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:12:56,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:56,798 INFO L93 Difference]: Finished difference Result 123 states and 124 transitions. [2024-11-19 11:12:56,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:12:56,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-19 11:12:56,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:56,800 INFO L225 Difference]: With dead ends: 123 [2024-11-19 11:12:56,801 INFO L226 Difference]: Without dead ends: 121 [2024-11-19 11:12:56,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:12:56,803 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 54 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:56,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 341 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:12:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-19 11:12:56,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 97. [2024-11-19 11:12:56,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 62 states have (on average 1.467741935483871) internal successors, (91), 89 states have internal predecessors, (91), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-19 11:12:56,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 100 transitions. [2024-11-19 11:12:56,809 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 100 transitions. Word has length 25 [2024-11-19 11:12:56,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:56,810 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 100 transitions. [2024-11-19 11:12:56,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:12:56,810 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 100 transitions. [2024-11-19 11:12:56,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 11:12:56,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:56,811 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:56,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-19 11:12:57,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:57,012 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash 75296849, now seen corresponding path program 1 times [2024-11-19 11:12:57,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:57,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336776951] [2024-11-19 11:12:57,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:57,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849121182] [2024-11-19 11:12:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:57,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:57,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:57,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:57,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 11:12:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:57,139 INFO L255 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-19 11:12:57,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:57,151 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 [2024-11-19 11:12:57,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:57,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:12:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:57,401 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:57,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336776951] [2024-11-19 11:12:57,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:57,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849121182] [2024-11-19 11:12:57,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849121182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:57,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:57,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 11:12:57,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513485407] [2024-11-19 11:12:57,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:57,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 11:12:57,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:57,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 11:12:57,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:12:57,403 INFO L87 Difference]: Start difference. First operand 97 states and 100 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:12:57,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:12:57,586 INFO L93 Difference]: Finished difference Result 116 states and 122 transitions. [2024-11-19 11:12:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:12:57,587 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-11-19 11:12:57,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:12:57,588 INFO L225 Difference]: With dead ends: 116 [2024-11-19 11:12:57,588 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 11:12:57,588 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:12:57,589 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 147 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:12:57,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 152 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:12:57,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 11:12:57,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 103. [2024-11-19 11:12:57,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 93 states have internal predecessors, (97), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:12:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 107 transitions. [2024-11-19 11:12:57,597 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 107 transitions. Word has length 26 [2024-11-19 11:12:57,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:12:57,597 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 107 transitions. [2024-11-19 11:12:57,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:12:57,597 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 107 transitions. [2024-11-19 11:12:57,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 11:12:57,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:12:57,598 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:12:57,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-19 11:12:57,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:57,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting func_to_recursive_line_30_to_38_0Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:12:57,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:12:57,799 INFO L85 PathProgramCache]: Analyzing trace with hash 75591236, now seen corresponding path program 1 times [2024-11-19 11:12:57,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:12:57,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46855336] [2024-11-19 11:12:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:57,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:12:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:12:57,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127147649] [2024-11-19 11:12:57,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:12:57,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:12:57,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:12:57,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:12:57,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 11:12:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:12:57,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-19 11:12:57,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:12:57,935 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 [2024-11-19 11:12:57,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:12:58,476 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 26 treesize of output 14 [2024-11-19 11:12:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:12:58,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:12:58,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:12:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46855336] [2024-11-19 11:12:58,520 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:12:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127147649] [2024-11-19 11:12:58,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127147649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:12:58,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:12:58,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 11:12:58,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118089474] [2024-11-19 11:12:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:12:58,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:12:58,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:12:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:12:58,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:12:58,522 INFO L87 Difference]: Start difference. First operand 103 states and 107 transitions. Second operand has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:02,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-19 11:13:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:02,967 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2024-11-19 11:13:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 11:13:02,968 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 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 26 [2024-11-19 11:13:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:02,969 INFO L225 Difference]: With dead ends: 121 [2024-11-19 11:13:02,969 INFO L226 Difference]: Without dead ends: 119 [2024-11-19 11:13:02,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-19 11:13:02,970 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 60 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:02,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 420 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-19 11:13:02,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-19 11:13:02,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2024-11-19 11:13:02,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 94 states have internal predecessors, (97), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:02,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 107 transitions. [2024-11-19 11:13:02,979 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 107 transitions. Word has length 26 [2024-11-19 11:13:02,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:02,979 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 107 transitions. [2024-11-19 11:13:02,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:02,979 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 107 transitions. [2024-11-19 11:13:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 11:13:02,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:02,983 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:03,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 11:13:03,186 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,SelfDestructingSolverStorable11 [2024-11-19 11:13:03,187 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:03,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:03,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1960764888, now seen corresponding path program 1 times [2024-11-19 11:13:03,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:03,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996214190] [2024-11-19 11:13:03,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:03,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:03,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999872511] [2024-11-19 11:13:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:03,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:03,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:03,208 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:03,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 11:13:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:03,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-19 11:13:03,313 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:03,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:03,329 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 [2024-11-19 11:13:03,518 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 12 [2024-11-19 11:13:03,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:03,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:03,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:03,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996214190] [2024-11-19 11:13:03,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:03,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999872511] [2024-11-19 11:13:03,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999872511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:03,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:03,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:03,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7288447] [2024-11-19 11:13:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:03,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:03,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:03,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:03,534 INFO L87 Difference]: Start difference. First operand 104 states and 107 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:03,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:03,707 INFO L93 Difference]: Finished difference Result 115 states and 120 transitions. [2024-11-19 11:13:03,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:03,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2024-11-19 11:13:03,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:03,708 INFO L225 Difference]: With dead ends: 115 [2024-11-19 11:13:03,708 INFO L226 Difference]: Without dead ends: 113 [2024-11-19 11:13:03,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-19 11:13:03,709 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 78 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:03,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 158 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:13:03,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-19 11:13:03,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 105. [2024-11-19 11:13:03,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 95 states have internal predecessors, (97), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:03,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 107 transitions. [2024-11-19 11:13:03,724 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 107 transitions. Word has length 27 [2024-11-19 11:13:03,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:03,725 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 107 transitions. [2024-11-19 11:13:03,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:03,725 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 107 transitions. [2024-11-19 11:13:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 11:13:03,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:03,727 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:03,744 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 11:13:03,927 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,SelfDestructingSolverStorable12 [2024-11-19 11:13:03,927 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting func_to_recursive_line_30_to_38_0Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:03,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:03,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1375717155, now seen corresponding path program 1 times [2024-11-19 11:13:03,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:03,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115881035] [2024-11-19 11:13:03,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:03,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:03,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947888348] [2024-11-19 11:13:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:03,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:03,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:03,947 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:03,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 11:13:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:04,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-19 11:13:04,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:04,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:04,063 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:04,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:13:04,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:04,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:04,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:04,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115881035] [2024-11-19 11:13:04,833 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:04,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947888348] [2024-11-19 11:13:04,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947888348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:04,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:04,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-19 11:13:04,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228331287] [2024-11-19 11:13:04,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:04,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 11:13:04,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 11:13:04,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-19 11:13:04,835 INFO L87 Difference]: Start difference. First operand 105 states and 107 transitions. Second operand has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:08,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:08,410 INFO L93 Difference]: Finished difference Result 121 states and 122 transitions. [2024-11-19 11:13:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 11:13:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 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 29 [2024-11-19 11:13:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:08,412 INFO L225 Difference]: With dead ends: 121 [2024-11-19 11:13:08,413 INFO L226 Difference]: Without dead ends: 120 [2024-11-19 11:13:08,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-19 11:13:08,414 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 62 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:08,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 480 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 11:13:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-19 11:13:08,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2024-11-19 11:13:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 70 states have (on average 1.4) internal successors, (98), 96 states have internal predecessors, (98), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2024-11-19 11:13:08,426 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 29 [2024-11-19 11:13:08,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:08,426 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-11-19 11:13:08,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.3636363636363638) internal successors, (26), 11 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:08,426 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2024-11-19 11:13:08,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 11:13:08,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:08,427 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:08,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:08,627 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,SelfDestructingSolverStorable13 [2024-11-19 11:13:08,627 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:08,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:08,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1591462379, now seen corresponding path program 1 times [2024-11-19 11:13:08,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:08,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945161099] [2024-11-19 11:13:08,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:08,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:08,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:08,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:08,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:08,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945161099] [2024-11-19 11:13:08,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945161099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:08,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:08,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:08,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073872944] [2024-11-19 11:13:08,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:08,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:08,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:08,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:08,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:08,785 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:09,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:09,011 INFO L93 Difference]: Finished difference Result 115 states and 119 transitions. [2024-11-19 11:13:09,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:09,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-11-19 11:13:09,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:09,012 INFO L225 Difference]: With dead ends: 115 [2024-11-19 11:13:09,012 INFO L226 Difference]: Without dead ends: 114 [2024-11-19 11:13:09,012 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:09,013 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 31 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:09,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 166 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:13:09,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-19 11:13:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 107. [2024-11-19 11:13:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 97 states have internal predecessors, (99), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2024-11-19 11:13:09,024 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 109 transitions. Word has length 30 [2024-11-19 11:13:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:09,025 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-11-19 11:13:09,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 109 transitions. [2024-11-19 11:13:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 11:13:09,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:09,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:09,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 11:13:09,026 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting func_to_recursive_line_30_to_38_0Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:09,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:09,026 INFO L85 PathProgramCache]: Analyzing trace with hash -302441080, now seen corresponding path program 1 times [2024-11-19 11:13:09,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:09,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260530457] [2024-11-19 11:13:09,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:09,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129523026] [2024-11-19 11:13:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:09,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:09,048 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:09,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 11:13:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:09,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 11:13:09,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:09,615 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 21 treesize of output 13 [2024-11-19 11:13:09,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:13:09,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:09,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:09,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:09,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260530457] [2024-11-19 11:13:09,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:09,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129523026] [2024-11-19 11:13:09,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129523026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:09,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:09,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:09,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888674583] [2024-11-19 11:13:09,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:09,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:09,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:09,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:09,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:09,778 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:14,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-19 11:13:15,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:15,233 INFO L93 Difference]: Finished difference Result 107 states and 109 transitions. [2024-11-19 11:13:15,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:13:15,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2024-11-19 11:13:15,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:15,234 INFO L225 Difference]: With dead ends: 107 [2024-11-19 11:13:15,235 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 11:13:15,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:13:15,235 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 49 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:15,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 201 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2024-11-19 11:13:15,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 11:13:15,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-11-19 11:13:15,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 71 states have (on average 1.380281690140845) internal successors, (98), 96 states have internal predecessors, (98), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:15,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 108 transitions. [2024-11-19 11:13:15,243 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 108 transitions. Word has length 30 [2024-11-19 11:13:15,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:15,244 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 108 transitions. [2024-11-19 11:13:15,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-19 11:13:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 108 transitions. [2024-11-19 11:13:15,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 11:13:15,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:15,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:15,262 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 11:13:15,445 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,SelfDestructingSolverStorable15 [2024-11-19 11:13:15,446 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:15,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:15,446 INFO L85 PathProgramCache]: Analyzing trace with hash -2090693396, now seen corresponding path program 1 times [2024-11-19 11:13:15,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:15,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165689165] [2024-11-19 11:13:15,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:15,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:15,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165689165] [2024-11-19 11:13:15,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165689165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:15,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:15,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 11:13:15,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356192221] [2024-11-19 11:13:15,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:15,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 11:13:15,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:15,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 11:13:15,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:15,736 INFO L87 Difference]: Start difference. First operand 106 states and 108 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:16,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:16,238 INFO L93 Difference]: Finished difference Result 114 states and 117 transitions. [2024-11-19 11:13:16,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 11:13:16,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2024-11-19 11:13:16,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:16,239 INFO L225 Difference]: With dead ends: 114 [2024-11-19 11:13:16,239 INFO L226 Difference]: Without dead ends: 113 [2024-11-19 11:13:16,240 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 11:13:16,240 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 30 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:16,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 209 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:13:16,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-19 11:13:16,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2024-11-19 11:13:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 72 states have (on average 1.375) internal successors, (99), 97 states have internal predecessors, (99), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 109 transitions. [2024-11-19 11:13:16,248 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 109 transitions. Word has length 31 [2024-11-19 11:13:16,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:16,248 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 109 transitions. [2024-11-19 11:13:16,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:16,248 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 109 transitions. [2024-11-19 11:13:16,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 11:13:16,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:16,249 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:16,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 11:13:16,249 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:16,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:16,250 INFO L85 PathProgramCache]: Analyzing trace with hash -386985737, now seen corresponding path program 1 times [2024-11-19 11:13:16,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:16,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371688539] [2024-11-19 11:13:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:16,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:16,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1459131886] [2024-11-19 11:13:16,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:16,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:16,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:16,273 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:16,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 11:13:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:16,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-19 11:13:16,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:16,388 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 [2024-11-19 11:13:16,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:16,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:16,654 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-19 11:13:16,654 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 26 treesize of output 26 [2024-11-19 11:13:16,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:16,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:16,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371688539] [2024-11-19 11:13:16,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:16,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459131886] [2024-11-19 11:13:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459131886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 11:13:16,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121125214] [2024-11-19 11:13:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:16,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 11:13:16,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:16,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 11:13:16,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 11:13:16,677 INFO L87 Difference]: Start difference. First operand 107 states and 109 transitions. Second operand has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:16,833 INFO L93 Difference]: Finished difference Result 112 states and 116 transitions. [2024-11-19 11:13:16,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 11:13:16,834 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2024-11-19 11:13:16,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:16,835 INFO L225 Difference]: With dead ends: 112 [2024-11-19 11:13:16,835 INFO L226 Difference]: Without dead ends: 111 [2024-11-19 11:13:16,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:16,835 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 79 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:16,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 224 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 11:13:16,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-19 11:13:16,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 108. [2024-11-19 11:13:16,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.36986301369863) internal successors, (100), 98 states have internal predecessors, (100), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:16,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 110 transitions. [2024-11-19 11:13:16,843 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 110 transitions. Word has length 32 [2024-11-19 11:13:16,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:16,844 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 110 transitions. [2024-11-19 11:13:16,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 4.0) internal successors, (28), 9 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:16,844 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 110 transitions. [2024-11-19 11:13:16,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 11:13:16,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:16,844 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:16,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:17,045 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,SelfDestructingSolverStorable17 [2024-11-19 11:13:17,045 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:17,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:17,045 INFO L85 PathProgramCache]: Analyzing trace with hash 888344142, now seen corresponding path program 1 times [2024-11-19 11:13:17,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:17,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405835464] [2024-11-19 11:13:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:17,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:17,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1298915518] [2024-11-19 11:13:17,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:17,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:17,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:17,061 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:17,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 11:13:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:17,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 11:13:17,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:17,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:17,168 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:17,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:13:17,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:17,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:17,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:17,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405835464] [2024-11-19 11:13:17,336 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:17,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298915518] [2024-11-19 11:13:17,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298915518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:17,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:17,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:17,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998061194] [2024-11-19 11:13:17,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:17,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:17,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:17,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:17,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:17,338 INFO L87 Difference]: Start difference. First operand 108 states and 110 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:17,556 INFO L93 Difference]: Finished difference Result 112 states and 115 transitions. [2024-11-19 11:13:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:17,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 33 [2024-11-19 11:13:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:17,557 INFO L225 Difference]: With dead ends: 112 [2024-11-19 11:13:17,557 INFO L226 Difference]: Without dead ends: 111 [2024-11-19 11:13:17,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-19 11:13:17,558 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 36 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:17,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 241 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:13:17,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-19 11:13:17,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2024-11-19 11:13:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 74 states have (on average 1.364864864864865) internal successors, (101), 99 states have internal predecessors, (101), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 11:13:17,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 111 transitions. [2024-11-19 11:13:17,571 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 111 transitions. Word has length 33 [2024-11-19 11:13:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:17,571 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 111 transitions. [2024-11-19 11:13:17,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 111 transitions. [2024-11-19 11:13:17,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 11:13:17,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:17,573 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:17,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:17,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:17,774 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:17,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash -371695445, now seen corresponding path program 1 times [2024-11-19 11:13:17,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:17,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591771931] [2024-11-19 11:13:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:17,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:17,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156373894] [2024-11-19 11:13:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:17,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:17,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:17,798 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:17,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 11:13:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:17,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-19 11:13:17,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:17,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:17,956 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 [2024-11-19 11:13:18,042 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 25 treesize of output 17 [2024-11-19 11:13:18,078 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 21 treesize of output 13 [2024-11-19 11:13:18,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-19 11:13:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:18,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:13:18,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:18,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:18,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591771931] [2024-11-19 11:13:18,457 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:18,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156373894] [2024-11-19 11:13:18,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156373894] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:13:18,457 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 11:13:18,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2024-11-19 11:13:18,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583541577] [2024-11-19 11:13:18,457 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 11:13:18,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:13:18,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:18,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:13:18,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-19 11:13:18,459 INFO L87 Difference]: Start difference. First operand 109 states and 111 transitions. Second operand has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:19,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:19,074 INFO L93 Difference]: Finished difference Result 154 states and 159 transitions. [2024-11-19 11:13:19,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 11:13:19,074 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-11-19 11:13:19,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:19,075 INFO L225 Difference]: With dead ends: 154 [2024-11-19 11:13:19,076 INFO L226 Difference]: Without dead ends: 152 [2024-11-19 11:13:19,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-19 11:13:19,076 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 193 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:19,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 500 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 11:13:19,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-19 11:13:19,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 129. [2024-11-19 11:13:19,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 91 states have (on average 1.3846153846153846) internal successors, (126), 116 states have internal predecessors, (126), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-19 11:13:19,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 142 transitions. [2024-11-19 11:13:19,087 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 142 transitions. Word has length 34 [2024-11-19 11:13:19,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:19,087 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 142 transitions. [2024-11-19 11:13:19,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:19,088 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 142 transitions. [2024-11-19 11:13:19,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-19 11:13:19,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:19,088 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:19,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-19 11:13:19,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:19,289 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:19,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1768864729, now seen corresponding path program 1 times [2024-11-19 11:13:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:19,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522548892] [2024-11-19 11:13:19,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:19,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:19,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473187754] [2024-11-19 11:13:19,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:19,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:19,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:19,308 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:19,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 11:13:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:19,405 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-19 11:13:19,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:19,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:19,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:19,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-19 11:13:19,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:19,597 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 11:13:19,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522548892] [2024-11-19 11:13:19,598 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:19,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473187754] [2024-11-19 11:13:19,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473187754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 11:13:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 11:13:19,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 11:13:19,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696034823] [2024-11-19 11:13:19,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 11:13:19,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 11:13:19,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:19,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 11:13:19,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:19,599 INFO L87 Difference]: Start difference. First operand 129 states and 142 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:19,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 11:13:19,807 INFO L93 Difference]: Finished difference Result 133 states and 145 transitions. [2024-11-19 11:13:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 11:13:19,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2024-11-19 11:13:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 11:13:19,809 INFO L225 Difference]: With dead ends: 133 [2024-11-19 11:13:19,809 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 11:13:19,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 11:13:19,810 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 24 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 11:13:19,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 188 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 11:13:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 11:13:19,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 11:13:19,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 81 states have (on average 1.4197530864197532) internal successors, (115), 106 states have internal predecessors, (115), 6 states have call successors, (6), 5 states have call predecessors, (6), 6 states have return successors, (9), 6 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-19 11:13:19,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 130 transitions. [2024-11-19 11:13:19,820 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 130 transitions. Word has length 34 [2024-11-19 11:13:19,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 11:13:19,820 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 130 transitions. [2024-11-19 11:13:19,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:19,821 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 130 transitions. [2024-11-19 11:13:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 11:13:19,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 11:13:19,821 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 11:13:19,835 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 11:13:20,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:20,022 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [func_to_recursive_line_30_to_38_0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, func_to_recursive_line_30_to_38_0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-19 11:13:20,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 11:13:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1362343130, now seen corresponding path program 1 times [2024-11-19 11:13:20,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 11:13:20,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389307944] [2024-11-19 11:13:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:20,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 11:13:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 11:13:20,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1724434963] [2024-11-19 11:13:20,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 11:13:20,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 11:13:20,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 11:13:20,041 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 11:13:20,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 11:13:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 11:13:20,189 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-19 11:13:20,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 11:13:20,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-19 11:13:20,205 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 [2024-11-19 11:13:20,423 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 25 treesize of output 17 [2024-11-19 11:13:20,489 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 21 treesize of output 13 [2024-11-19 11:13:20,492 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 33 treesize of output 17 [2024-11-19 11:13:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:20,515 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 11:13:41,277 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 11:13:41,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 11:13:41,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389307944] [2024-11-19 11:13:41,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 11:13:41,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724434963] [2024-11-19 11:13:41,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724434963] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 11:13:41,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 11:13:41,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 16 [2024-11-19 11:13:41,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832619478] [2024-11-19 11:13:41,279 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 11:13:41,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-19 11:13:41,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 11:13:41,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-19 11:13:41,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=222, Unknown=3, NotChecked=0, Total=272 [2024-11-19 11:13:41,280 INFO L87 Difference]: Start difference. First operand 118 states and 130 transitions. Second operand has 17 states, 14 states have (on average 4.357142857142857) internal successors, (61), 13 states have internal predecessors, (61), 6 states have call successors, (6), 6 states have call predecessors, (6), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 11:13:45,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:13:53,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:01,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:05,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:09,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:13,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:17,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2024-11-19 11:14:21,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-19 11:14:25,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []