./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 Calling Ultimate with: /usr/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/recursive/Fibonacci02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 12:36:48,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 12:36:48,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 12:36:48,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 12:36:48,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 12:36:48,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 12:36:48,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 12:36:48,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 12:36:48,300 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 12:36:48,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 12:36:48,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 12:36:48,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 12:36:48,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 12:36:48,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 12:36:48,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 12:36:48,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 12:36:48,316 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 12:36:48,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 12:36:48,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 12:36:48,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 12:36:48,326 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 12:36:48,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 12:36:48,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 12:36:48,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 12:36:48,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 12:36:48,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 12:36:48,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 12:36:48,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 12:36:48,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 12:36:48,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 12:36:48,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 12:36:48,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 12:36:48,341 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 12:36:48,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 12:36:48,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 12:36:48,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 12:36:48,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 12:36:48,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 12:36:48,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 12:36:48,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 12:36:48,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 12:36:48,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 12:36:48,396 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 12:36:48,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 12:36:48,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 12:36:48,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 12:36:48,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 12:36:48,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 12:36:48,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 12:36:48,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 12:36:48,401 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 12:36:48,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 12:36:48,403 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 12:36:48,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 12:36:48,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 12:36:48,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 12:36:48,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 12:36:48,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 12:36:48,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 12:36:48,404 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 12:36:48,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 12:36:48,404 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 12:36:48,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 12:36:48,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 12:36:48,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 12:36:48,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 12:36:48,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 12:36:48,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 12:36:48,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 12:36:48,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 12:36:48,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 12:36:48,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 12:36:48,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 12:36:48,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 12:36:48,419 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 12:36:48,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 12:36:48,419 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 12:36:48,419 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2023-02-15 12:36:48,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 12:36:48,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 12:36:48,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 12:36:48,728 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 12:36:48,728 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 12:36:48,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-15 12:36:49,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 12:36:50,032 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 12:36:50,032 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-15 12:36:50,042 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff5d16c6/4fe88d9b347b4c69915e94c7358a54c6/FLAG83eb68b00 [2023-02-15 12:36:50,055 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bff5d16c6/4fe88d9b347b4c69915e94c7358a54c6 [2023-02-15 12:36:50,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 12:36:50,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 12:36:50,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 12:36:50,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 12:36:50,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 12:36:50,063 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b0665b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50, skipping insertion in model container [2023-02-15 12:36:50,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 12:36:50,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 12:36:50,193 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-02-15 12:36:50,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 12:36:50,216 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 12:36:50,233 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-02-15 12:36:50,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 12:36:50,246 INFO L208 MainTranslator]: Completed translation [2023-02-15 12:36:50,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50 WrapperNode [2023-02-15 12:36:50,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 12:36:50,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 12:36:50,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 12:36:50,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 12:36:50,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,278 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 12:36:50,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 12:36:50,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 12:36:50,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 12:36:50,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 12:36:50,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,299 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 12:36:50,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 12:36:50,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 12:36:50,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 12:36:50,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (1/1) ... [2023-02-15 12:36:50,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 12:36:50,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:50,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 12:36:50,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 12:36:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2023-02-15 12:36:50,392 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2023-02-15 12:36:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 12:36:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 12:36:50,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 12:36:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 12:36:50,451 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 12:36:50,455 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 12:36:50,600 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 12:36:50,608 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 12:36:50,611 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 12:36:50,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:36:50 BoogieIcfgContainer [2023-02-15 12:36:50,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 12:36:50,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 12:36:50,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 12:36:50,622 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 12:36:50,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 12:36:50" (1/3) ... [2023-02-15 12:36:50,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b89ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:36:50, skipping insertion in model container [2023-02-15 12:36:50,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 12:36:50" (2/3) ... [2023-02-15 12:36:50,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b89ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 12:36:50, skipping insertion in model container [2023-02-15 12:36:50,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:36:50" (3/3) ... [2023-02-15 12:36:50,626 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2023-02-15 12:36:50,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 12:36:50,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 12:36:50,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 12:36:50,711 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@6e40a2af, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 12:36:50,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 12:36:50,717 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 12:36:50,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 12:36:50,724 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:50,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:50,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:50,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:50,733 INFO L85 PathProgramCache]: Analyzing trace with hash 117289724, now seen corresponding path program 1 times [2023-02-15 12:36:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:50,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338176133] [2023-02-15 12:36:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 12:36:51,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:51,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338176133] [2023-02-15 12:36:51,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338176133] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 12:36:51,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 12:36:51,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 12:36:51,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24069849] [2023-02-15 12:36:51,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 12:36:51,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 12:36:51,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:51,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 12:36:51,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 12:36:51,098 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 12:36:51,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:51,186 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-02-15 12:36:51,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 12:36:51,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-02-15 12:36:51,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:51,196 INFO L225 Difference]: With dead ends: 28 [2023-02-15 12:36:51,196 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 12:36:51,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 12:36:51,206 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:51,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 12:36:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 12:36:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 12:36:51,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 12:36:51,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-15 12:36:51,250 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-02-15 12:36:51,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:51,251 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-15 12:36:51,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 12:36:51,252 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-15 12:36:51,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 12:36:51,254 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:51,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:51,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 12:36:51,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:51,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:51,256 INFO L85 PathProgramCache]: Analyzing trace with hash 36927066, now seen corresponding path program 1 times [2023-02-15 12:36:51,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:51,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044398469] [2023-02-15 12:36:51,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:51,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:51,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 12:36:51,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:51,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044398469] [2023-02-15 12:36:51,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044398469] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 12:36:51,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 12:36:51,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 12:36:51,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279076888] [2023-02-15 12:36:51,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 12:36:51,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 12:36:51,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 12:36:51,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 12:36:51,418 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 12:36:51,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:51,482 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-02-15 12:36:51,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 12:36:51,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-02-15 12:36:51,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:51,484 INFO L225 Difference]: With dead ends: 24 [2023-02-15 12:36:51,484 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 12:36:51,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 12:36:51,490 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:51,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 12:36:51,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 12:36:51,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2023-02-15 12:36:51,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 12:36:51,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-15 12:36:51,508 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2023-02-15 12:36:51,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:51,509 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-15 12:36:51,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 12:36:51,510 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-15 12:36:51,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 12:36:51,511 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:51,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:51,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 12:36:51,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:51,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:51,516 INFO L85 PathProgramCache]: Analyzing trace with hash 703243533, now seen corresponding path program 1 times [2023-02-15 12:36:51,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:51,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663972019] [2023-02-15 12:36:51,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:51,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 12:36:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 12:36:51,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:51,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663972019] [2023-02-15 12:36:51,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663972019] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:51,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964411670] [2023-02-15 12:36:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:51,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:51,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:51,679 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) [2023-02-15 12:36:51,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 12:36:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:51,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 12:36:51,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 12:36:51,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:36:52,133 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 12:36:52,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964411670] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:36:52,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:36:52,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2023-02-15 12:36:52,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070740819] [2023-02-15 12:36:52,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:36:52,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 12:36:52,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:52,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 12:36:52,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-15 12:36:52,141 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 12:36:52,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:52,222 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2023-02-15 12:36:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 12:36:52,222 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2023-02-15 12:36:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:52,223 INFO L225 Difference]: With dead ends: 35 [2023-02-15 12:36:52,224 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 12:36:52,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-02-15 12:36:52,225 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:52,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 12:36:52,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 12:36:52,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-15 12:36:52,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 12:36:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-02-15 12:36:52,231 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2023-02-15 12:36:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:52,231 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-02-15 12:36:52,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 12:36:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-02-15 12:36:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 12:36:52,233 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:52,233 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:52,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 12:36:52,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:52,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:52,441 INFO L85 PathProgramCache]: Analyzing trace with hash 187716987, now seen corresponding path program 1 times [2023-02-15 12:36:52,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:52,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602226224] [2023-02-15 12:36:52,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:52,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 12:36:52,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:52,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602226224] [2023-02-15 12:36:52,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602226224] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:52,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513328983] [2023-02-15 12:36:52,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:52,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:52,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:52,589 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) [2023-02-15 12:36:52,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 12:36:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:52,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 12:36:52,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 12:36:52,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:36:52,867 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 12:36:52,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513328983] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:36:52,867 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:36:52,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2023-02-15 12:36:52,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012002044] [2023-02-15 12:36:52,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:36:52,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 12:36:52,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:52,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 12:36:52,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-02-15 12:36:52,870 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 12:36:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:52,951 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-02-15 12:36:52,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 12:36:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2023-02-15 12:36:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:52,956 INFO L225 Difference]: With dead ends: 38 [2023-02-15 12:36:52,957 INFO L226 Difference]: Without dead ends: 34 [2023-02-15 12:36:52,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-02-15 12:36:52,958 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:52,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 56 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 12:36:52,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-15 12:36:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-15 12:36:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-15 12:36:52,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2023-02-15 12:36:52,976 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2023-02-15 12:36:52,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:52,976 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2023-02-15 12:36:52,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 12:36:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-02-15 12:36:52,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 12:36:52,978 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:52,978 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:52,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 12:36:53,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-15 12:36:53,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:53,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1151618030, now seen corresponding path program 2 times [2023-02-15 12:36:53,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:53,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983563592] [2023-02-15 12:36:53,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:53,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-15 12:36:53,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:53,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983563592] [2023-02-15 12:36:53,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983563592] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:53,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728934377] [2023-02-15 12:36:53,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 12:36:53,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:53,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:53,438 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) [2023-02-15 12:36:53,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 12:36:53,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 12:36:53,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:36:53,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 12:36:53,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:53,582 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-02-15 12:36:53,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:36:53,877 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-15 12:36:53,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728934377] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:36:53,878 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:36:53,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2023-02-15 12:36:53,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496896686] [2023-02-15 12:36:53,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:36:53,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 12:36:53,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:53,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 12:36:53,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-02-15 12:36:53,890 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2023-02-15 12:36:54,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:54,057 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions. [2023-02-15 12:36:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 12:36:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) Word has length 37 [2023-02-15 12:36:54,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:54,059 INFO L225 Difference]: With dead ends: 69 [2023-02-15 12:36:54,059 INFO L226 Difference]: Without dead ends: 38 [2023-02-15 12:36:54,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2023-02-15 12:36:54,061 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:54,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 90 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 12:36:54,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-15 12:36:54,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-15 12:36:54,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2023-02-15 12:36:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-02-15 12:36:54,073 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2023-02-15 12:36:54,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:54,073 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-02-15 12:36:54,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2023-02-15 12:36:54,074 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-02-15 12:36:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-15 12:36:54,075 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:54,075 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:54,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 12:36:54,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:54,282 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:54,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1673648870, now seen corresponding path program 3 times [2023-02-15 12:36:54,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:54,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018126097] [2023-02-15 12:36:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:54,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:36:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:54,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:54,574 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-15 12:36:54,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:54,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018126097] [2023-02-15 12:36:54,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018126097] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:54,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937796013] [2023-02-15 12:36:54,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 12:36:54,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:54,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:54,579 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) [2023-02-15 12:36:54,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 12:36:54,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 12:36:54,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:36:54,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 12:36:54,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:54,672 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-02-15 12:36:54,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:36:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 29 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-15 12:36:55,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937796013] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:36:55,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:36:55,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2023-02-15 12:36:55,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644772687] [2023-02-15 12:36:55,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:36:55,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 12:36:55,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 12:36:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-02-15 12:36:55,006 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2023-02-15 12:36:55,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:55,129 INFO L93 Difference]: Finished difference Result 85 states and 124 transitions. [2023-02-15 12:36:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 12:36:55,130 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) Word has length 65 [2023-02-15 12:36:55,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:55,132 INFO L225 Difference]: With dead ends: 85 [2023-02-15 12:36:55,132 INFO L226 Difference]: Without dead ends: 50 [2023-02-15 12:36:55,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-02-15 12:36:55,133 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:55,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 12:36:55,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-15 12:36:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2023-02-15 12:36:55,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 32 states have internal predecessors, (38), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (16), 9 states have call predecessors, (16), 7 states have call successors, (16) [2023-02-15 12:36:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-02-15 12:36:55,140 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 65 [2023-02-15 12:36:55,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:55,141 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-02-15 12:36:55,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2023-02-15 12:36:55,141 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-02-15 12:36:55,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-02-15 12:36:55,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:55,143 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:55,153 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 12:36:55,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:55,354 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:55,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:55,355 INFO L85 PathProgramCache]: Analyzing trace with hash 917554903, now seen corresponding path program 4 times [2023-02-15 12:36:55,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:55,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476072877] [2023-02-15 12:36:55,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:55,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:36:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:36:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:36:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:55,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 198 proven. 308 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-02-15 12:36:55,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:55,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476072877] [2023-02-15 12:36:55,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476072877] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:55,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107142008] [2023-02-15 12:36:55,920 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 12:36:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:55,921 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) [2023-02-15 12:36:55,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 12:36:55,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 12:36:55,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:36:56,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 12:36:56,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-02-15 12:36:56,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:36:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 352 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-02-15 12:36:56,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107142008] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:36:56,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:36:56,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 13] total 27 [2023-02-15 12:36:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409268044] [2023-02-15 12:36:56,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:36:56,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-15 12:36:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:36:56,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-15 12:36:56,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2023-02-15 12:36:56,926 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) [2023-02-15 12:36:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:36:57,257 INFO L93 Difference]: Finished difference Result 112 states and 192 transitions. [2023-02-15 12:36:57,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 12:36:57,258 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) Word has length 133 [2023-02-15 12:36:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:36:57,262 INFO L225 Difference]: With dead ends: 112 [2023-02-15 12:36:57,263 INFO L226 Difference]: Without dead ends: 71 [2023-02-15 12:36:57,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 12:36:57,268 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 74 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 12:36:57,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 150 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 12:36:57,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-15 12:36:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2023-02-15 12:36:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 46 states have internal predecessors, (53), 11 states have call successors, (11), 9 states have call predecessors, (11), 7 states have return successors, (25), 11 states have call predecessors, (25), 11 states have call successors, (25) [2023-02-15 12:36:57,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2023-02-15 12:36:57,291 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 133 [2023-02-15 12:36:57,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:36:57,292 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2023-02-15 12:36:57,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) [2023-02-15 12:36:57,292 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2023-02-15 12:36:57,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-02-15 12:36:57,300 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:36:57,300 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:36:57,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 12:36:57,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:57,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:36:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:36:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1778838455, now seen corresponding path program 5 times [2023-02-15 12:36:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:36:57,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941200304] [2023-02-15 12:36:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:36:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:36:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:57,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:36:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:57,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:57,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:36:58,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:36:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:36:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:36:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:36:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:36:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:36:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:36:58,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:36:58,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 403 proven. 706 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2023-02-15 12:36:58,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:36:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941200304] [2023-02-15 12:36:58,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941200304] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:36:58,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189465983] [2023-02-15 12:36:58,362 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 12:36:58,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:36:58,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:36:58,364 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) [2023-02-15 12:36:58,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 12:36:58,483 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-15 12:36:58,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:36:58,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-15 12:36:58,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:36:58,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 630 proven. 571 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2023-02-15 12:36:58,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:37:00,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 632 proven. 605 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-02-15 12:37:00,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189465983] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:37:00,372 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:37:00,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 34 [2023-02-15 12:37:00,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855009062] [2023-02-15 12:37:00,372 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:37:00,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-15 12:37:00,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:37:00,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-15 12:37:00,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 12:37:00,375 INFO L87 Difference]: Start difference. First operand 67 states and 89 transitions. Second operand has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) [2023-02-15 12:37:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:37:00,946 INFO L93 Difference]: Finished difference Result 147 states and 243 transitions. [2023-02-15 12:37:00,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 12:37:00,946 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) Word has length 215 [2023-02-15 12:37:00,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:37:00,948 INFO L225 Difference]: With dead ends: 147 [2023-02-15 12:37:00,948 INFO L226 Difference]: Without dead ends: 91 [2023-02-15 12:37:00,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 468 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=650, Invalid=2002, Unknown=0, NotChecked=0, Total=2652 [2023-02-15 12:37:00,950 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 129 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 12:37:00,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 158 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 12:37:00,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-15 12:37:00,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2023-02-15 12:37:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 58 states have internal predecessors, (62), 15 states have call successors, (15), 12 states have call predecessors, (15), 8 states have return successors, (36), 13 states have call predecessors, (36), 15 states have call successors, (36) [2023-02-15 12:37:00,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2023-02-15 12:37:00,964 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 215 [2023-02-15 12:37:00,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:37:00,966 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2023-02-15 12:37:00,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) [2023-02-15 12:37:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2023-02-15 12:37:00,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-02-15 12:37:00,970 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:37:00,970 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 38, 23, 23, 23, 23, 23, 23, 23, 15, 9, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:37:00,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 12:37:01,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:01,180 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:37:01,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:37:01,180 INFO L85 PathProgramCache]: Analyzing trace with hash 88549517, now seen corresponding path program 6 times [2023-02-15 12:37:01,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:37:01,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182685698] [2023-02-15 12:37:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:37:01,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:37:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:01,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:37:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:01,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:01,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:02,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1307 proven. 1260 refuted. 0 times theorem prover too weak. 3472 trivial. 0 not checked. [2023-02-15 12:37:02,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:37:02,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182685698] [2023-02-15 12:37:02,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182685698] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:37:02,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070130400] [2023-02-15 12:37:02,572 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 12:37:02,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:02,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:37:02,574 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) [2023-02-15 12:37:02,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 12:37:02,715 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2023-02-15 12:37:02,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:37:02,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 12:37:02,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:37:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 346 proven. 1004 refuted. 0 times theorem prover too weak. 4689 trivial. 0 not checked. [2023-02-15 12:37:02,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:37:04,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 350 proven. 1040 refuted. 0 times theorem prover too weak. 4649 trivial. 0 not checked. [2023-02-15 12:37:04,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070130400] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:37:04,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:37:04,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 15] total 32 [2023-02-15 12:37:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833255867] [2023-02-15 12:37:04,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:37:04,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 12:37:04,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:37:04,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 12:37:04,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2023-02-15 12:37:04,364 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) [2023-02-15 12:37:04,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:37:04,933 INFO L93 Difference]: Finished difference Result 193 states and 312 transitions. [2023-02-15 12:37:04,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-15 12:37:04,934 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) Word has length 324 [2023-02-15 12:37:04,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:37:04,936 INFO L225 Difference]: With dead ends: 193 [2023-02-15 12:37:04,936 INFO L226 Difference]: Without dead ends: 120 [2023-02-15 12:37:04,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 733 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=624, Invalid=1926, Unknown=0, NotChecked=0, Total=2550 [2023-02-15 12:37:04,940 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 119 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 12:37:04,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 12:37:04,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-15 12:37:04,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2023-02-15 12:37:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 75 states have (on average 1.04) internal successors, (78), 73 states have internal predecessors, (78), 20 states have call successors, (20), 16 states have call predecessors, (20), 9 states have return successors, (46), 15 states have call predecessors, (46), 20 states have call successors, (46) [2023-02-15 12:37:04,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2023-02-15 12:37:04,965 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 324 [2023-02-15 12:37:04,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:37:04,965 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2023-02-15 12:37:04,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) [2023-02-15 12:37:04,966 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2023-02-15 12:37:04,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-02-15 12:37:04,979 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:37:04,979 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 75, 46, 46, 46, 46, 46, 46, 46, 29, 18, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:37:04,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 12:37:05,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:05,185 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:37:05,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:37:05,186 INFO L85 PathProgramCache]: Analyzing trace with hash 793898644, now seen corresponding path program 7 times [2023-02-15 12:37:05,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:37:05,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794478685] [2023-02-15 12:37:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:37:05,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:37:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:05,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:37:06,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:06,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 12:37:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:07,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:07,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-02-15 12:37:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,220 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 2111 proven. 4081 refuted. 0 times theorem prover too weak. 17835 trivial. 0 not checked. [2023-02-15 12:37:08,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:37:08,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794478685] [2023-02-15 12:37:08,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794478685] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:37:08,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1597246732] [2023-02-15 12:37:08,225 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 12:37:08,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:08,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:37:08,227 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) [2023-02-15 12:37:08,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 12:37:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:08,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-15 12:37:08,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:37:08,626 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3361 refuted. 0 times theorem prover too weak. 20240 trivial. 0 not checked. [2023-02-15 12:37:08,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:37:11,554 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3438 refuted. 0 times theorem prover too weak. 20163 trivial. 0 not checked. [2023-02-15 12:37:11,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1597246732] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:37:11,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:37:11,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 12, 19] total 39 [2023-02-15 12:37:11,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513086971] [2023-02-15 12:37:11,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:37:11,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-15 12:37:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:37:11,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-15 12:37:11,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1125, Unknown=0, NotChecked=0, Total=1482 [2023-02-15 12:37:11,559 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) [2023-02-15 12:37:12,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:37:12,296 INFO L93 Difference]: Finished difference Result 236 states and 390 transitions. [2023-02-15 12:37:12,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-15 12:37:12,297 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) Word has length 637 [2023-02-15 12:37:12,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:37:12,301 INFO L225 Difference]: With dead ends: 236 [2023-02-15 12:37:12,302 INFO L226 Difference]: Without dead ends: 146 [2023-02-15 12:37:12,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1512 GetRequests, 1441 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 12:37:12,304 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 200 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 12:37:12,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 201 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 12:37:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-02-15 12:37:12,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2023-02-15 12:37:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 87 states have (on average 1.0344827586206897) internal successors, (90), 85 states have internal predecessors, (90), 24 states have call successors, (24), 19 states have call predecessors, (24), 10 states have return successors, (58), 17 states have call predecessors, (58), 24 states have call successors, (58) [2023-02-15 12:37:12,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2023-02-15 12:37:12,330 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 637 [2023-02-15 12:37:12,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:37:12,331 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2023-02-15 12:37:12,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) [2023-02-15 12:37:12,332 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2023-02-15 12:37:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2023-02-15 12:37:12,338 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:37:12,338 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:37:12,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 12:37:12,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 12:37:12,552 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:37:12,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:37:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash 597528604, now seen corresponding path program 8 times [2023-02-15 12:37:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:37:12,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803639710] [2023-02-15 12:37:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:37:12,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:37:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:37:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:25,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:27,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:27,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:27,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:27,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:28,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:28,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:28,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:28,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 12:37:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:29,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:29,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-02-15 12:37:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:29,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:30,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:30,447 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 12:37:30,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:37:30,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803639710] [2023-02-15 12:37:30,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803639710] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:37:30,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937506287] [2023-02-15 12:37:30,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 12:37:30,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:30,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:37:30,453 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) [2023-02-15 12:37:30,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 12:37:30,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 12:37:30,785 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:37:30,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 439 conjunts are in the unsatisfiable core [2023-02-15 12:37:30,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:37:33,176 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 12:37:33,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:37:39,470 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 12:37:39,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937506287] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:37:39,471 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:37:39,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2023-02-15 12:37:39,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484677199] [2023-02-15 12:37:39,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:37:39,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-02-15 12:37:39,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:37:39,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-02-15 12:37:39,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 12:37:39,474 INFO L87 Difference]: Start difference. First operand 122 states and 172 transitions. Second operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2023-02-15 12:37:39,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:37:39,993 INFO L93 Difference]: Finished difference Result 143 states and 220 transitions. [2023-02-15 12:37:39,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 12:37:39,993 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 746 [2023-02-15 12:37:39,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:37:39,996 INFO L225 Difference]: With dead ends: 143 [2023-02-15 12:37:39,996 INFO L226 Difference]: Without dead ends: 139 [2023-02-15 12:37:39,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1929 GetRequests, 1783 SyntacticMatches, 112 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 738 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 12:37:39,999 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 971 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 12:37:39,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 971 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 12:37:39,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-02-15 12:37:40,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 132. [2023-02-15 12:37:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 93 states have (on average 1.032258064516129) internal successors, (96), 91 states have internal predecessors, (96), 26 states have call successors, (26), 19 states have call predecessors, (26), 12 states have return successors, (80), 21 states have call predecessors, (80), 26 states have call successors, (80) [2023-02-15 12:37:40,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 202 transitions. [2023-02-15 12:37:40,011 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 202 transitions. Word has length 746 [2023-02-15 12:37:40,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:37:40,012 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 202 transitions. [2023-02-15 12:37:40,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2023-02-15 12:37:40,012 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 202 transitions. [2023-02-15 12:37:40,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2023-02-15 12:37:40,021 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 12:37:40,022 INFO L195 NwaCegarLoop]: trace histogram [167, 167, 135, 83, 83, 83, 83, 83, 83, 83, 52, 32, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 12:37:40,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 12:37:40,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:40,229 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 12:37:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 12:37:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash -18297609, now seen corresponding path program 9 times [2023-02-15 12:37:40,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 12:37:40,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077343173] [2023-02-15 12:37:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 12:37:40,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 12:37:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 12:37:41,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 12:37:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-15 12:37:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2023-02-15 12:37:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 12:37:43,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 12:37:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-15 12:37:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 12:37:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 12:37:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 12:37:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 12:37:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 12:37:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 12:37:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 12:37:43,891 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 2273 proven. 8133 refuted. 0 times theorem prover too weak. 67695 trivial. 0 not checked. [2023-02-15 12:37:43,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 12:37:43,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077343173] [2023-02-15 12:37:43,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077343173] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 12:37:43,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799023973] [2023-02-15 12:37:43,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 12:37:43,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 12:37:43,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 12:37:43,896 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) [2023-02-15 12:37:43,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 12:37:44,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2023-02-15 12:37:44,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 12:37:44,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-15 12:37:44,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 12:37:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1219 proven. 7041 refuted. 0 times theorem prover too weak. 69841 trivial. 0 not checked. [2023-02-15 12:37:44,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 12:37:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1211 proven. 7141 refuted. 0 times theorem prover too weak. 69749 trivial. 0 not checked. [2023-02-15 12:37:48,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799023973] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 12:37:48,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 12:37:48,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 22] total 40 [2023-02-15 12:37:48,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343183051] [2023-02-15 12:37:48,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 12:37:48,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 12:37:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 12:37:48,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 12:37:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1201, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 12:37:48,941 INFO L87 Difference]: Start difference. First operand 132 states and 202 transitions. Second operand has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) [2023-02-15 12:37:49,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 12:37:49,561 INFO L93 Difference]: Finished difference Result 278 states and 509 transitions. [2023-02-15 12:37:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 12:37:49,562 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) Word has length 1141 [2023-02-15 12:37:49,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 12:37:49,565 INFO L225 Difference]: With dead ends: 278 [2023-02-15 12:37:49,565 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 12:37:49,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2653 GetRequests, 2592 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=674, Invalid=2082, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 12:37:49,570 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 118 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 12:37:49,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 300 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 12:37:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 12:37:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 12:37:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 12:37:49,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 12:37:49,572 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1141 [2023-02-15 12:37:49,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 12:37:49,572 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 12:37:49,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) [2023-02-15 12:37:49,573 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 12:37:49,573 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 12:37:49,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 12:37:49,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 12:37:49,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 12:37:49,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 12:37:50,352 INFO L899 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2023-02-15 12:37:50,352 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (<= 2 fibonacci_~n) (= fibonacci_~n |fibonacci_#in~n|)) [2023-02-15 12:37:50,352 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L895 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse1 (<= 1 |fibonacci_#t~ret4|)) (.cse2 (<= |fibonacci_#t~ret4| 1)) (.cse0 (= fibonacci_~n |fibonacci_#in~n|))) (or (and (<= 8 fibonacci_~n) (<= |fibonacci_#t~ret4| 13) (<= |fibonacci_#in~n| 8) (<= 13 |fibonacci_#t~ret4|) .cse0) (and (<= 21 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 21) (<= 9 |fibonacci_#in~n|) .cse0) (and (<= 10 |fibonacci_#in~n|) .cse0) (and (<= 3 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 3) (<= 5 fibonacci_~n) .cse0 (<= |fibonacci_#in~n| 5)) (and (<= 7 fibonacci_~n) (<= 8 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 8) (<= |fibonacci_#in~n| 7) .cse0) (and .cse1 (<= 3 fibonacci_~n) .cse2 .cse0 (<= |fibonacci_#in~n| 3)) (and (<= fibonacci_~n 4) (<= 2 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 2) (<= 4 |fibonacci_#in~n|) .cse0) (and (<= 5 |fibonacci_#t~ret4|) (<= 6 fibonacci_~n) (<= |fibonacci_#t~ret4| 5) (<= fibonacci_~n 6) .cse0) (and .cse1 (<= |fibonacci_#in~n| 2) (<= 2 fibonacci_~n) .cse2 .cse0))) [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 24) the Hoare annotation is: true [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-02-15 12:37:50,353 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 12:37:50,354 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 12:37:50,354 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2023-02-15 12:37:50,354 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9)) [2023-02-15 12:37:50,354 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 12:37:50,354 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-02-15 12:37:50,354 INFO L895 garLoopResultBuilder]: At program point L27(lines 27 35) the Hoare annotation is: (<= 9 |ULTIMATE.start_main_~x~0#1|) [2023-02-15 12:37:50,354 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2023-02-15 12:37:50,355 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 12:37:50,358 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-02-15 12:37:50,359 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 12:37:50,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 12:37:50 BoogieIcfgContainer [2023-02-15 12:37:50,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 12:37:50,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 12:37:50,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 12:37:50,377 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 12:37:50,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 12:36:50" (3/4) ... [2023-02-15 12:37:50,381 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 12:37:50,387 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2023-02-15 12:37:50,391 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-15 12:37:50,392 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 12:37:50,392 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 12:37:50,392 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 12:37:50,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 12:37:50,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 12:37:50,438 INFO L158 Benchmark]: Toolchain (without parser) took 60379.42ms. Allocated memory was 125.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 76.9MB in the beginning and 955.1MB in the end (delta: -878.2MB). Peak memory consumption was 246.8MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,438 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 92.2MB in the end (delta: 72.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 12:37:50,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.05ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 66.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.72ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 65.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,440 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 125.8MB. Free memory was 65.0MB in the beginning and 64.1MB in the end (delta: 891.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 12:37:50,441 INFO L158 Benchmark]: RCFGBuilder took 312.22ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 54.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,441 INFO L158 Benchmark]: TraceAbstraction took 59757.67ms. Allocated memory was 125.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 54.2MB in the beginning and 957.2MB in the end (delta: -903.0MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,441 INFO L158 Benchmark]: Witness Printer took 60.37ms. Allocated memory is still 1.2GB. Free memory was 957.2MB in the beginning and 955.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 12:37:50,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 92.2MB in the end (delta: 72.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.05ms. Allocated memory is still 125.8MB. Free memory was 76.6MB in the beginning and 66.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.72ms. Allocated memory is still 125.8MB. Free memory was 66.5MB in the beginning and 65.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 125.8MB. Free memory was 65.0MB in the beginning and 64.1MB in the end (delta: 891.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 312.22ms. Allocated memory is still 125.8MB. Free memory was 64.1MB in the beginning and 54.8MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 59757.67ms. Allocated memory was 125.8MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 54.2MB in the beginning and 957.2MB in the end (delta: -903.0MB). Peak memory consumption was 221.7MB. Max. memory is 16.1GB. * Witness Printer took 60.37ms. Allocated memory is still 1.2GB. Free memory was 957.2MB in the beginning and 955.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 59.7s, OverallIterations: 12, TraceHistogramMax: 167, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 820 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 773 mSDsluCounter, 2317 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2018 mSDsCounter, 1395 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4285 IncrementalHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1395 mSolverCounterUnsat, 299 mSDtfsCounter, 4285 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8135 GetRequests, 7622 SyntacticMatches, 162 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5755 ImplicationChecksByTransitivity, 5.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132occurred in iteration=11, InterpolantAutomatonStates: 240, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 62 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 329 PreInvPairs, 481 NumberOfFragments, 151 HoareAnnotationTreeSize, 329 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 5255 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 50.5s InterpolantComputationTime, 6711 NumberOfCodeBlocks, 5628 NumberOfCodeBlocksAsserted, 105 NumberOfCheckSat, 10024 ConstructedInterpolants, 0 QuantifiedInterpolants, 20970 SizeOfPredicates, 58 NumberOfNonLiveVariables, 5187 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 362816/435111 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 9 <= x RESULT: Ultimate proved your program to be correct! [2023-02-15 12:37:50,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE