./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 b5317dae 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-?-b5317da-m [2023-02-16 02:55:07,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:55:07,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:55:07,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:55:07,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:55:07,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:55:07,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:55:07,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:55:07,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:55:07,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:55:07,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:55:07,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:55:07,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:55:07,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:55:07,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:55:07,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:55:07,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:55:07,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:55:07,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:55:07,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:55:07,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:55:07,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:55:07,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:55:07,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:55:07,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:55:07,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:55:07,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:55:07,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:55:07,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:55:07,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:55:07,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:55:07,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:55:07,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:55:07,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:55:07,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:55:07,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:55:07,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:55:07,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:55:07,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:55:07,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:55:07,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:55:07,376 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:55:07,405 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:55:07,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:55:07,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:55:07,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:55:07,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:55:07,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:55:07,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:55:07,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:55:07,407 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:55:07,408 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:55:07,408 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:55:07,409 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:55:07,410 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:55:07,410 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:55:07,410 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:55:07,410 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:55:07,410 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:55:07,410 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:55:07,411 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:55:07,411 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:55:07,411 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:55:07,411 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:55:07,411 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:55:07,412 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:55:07,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2023-02-16 02:55:07,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:55:07,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:55:07,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:55:07,635 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:55:07,635 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:55:07,636 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-16 02:55:08,741 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:55:08,931 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:55:08,932 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-16 02:55:08,937 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4098bd3/fe879c0aaa2b41d7b699f13fcdc7b2c4/FLAGce94a3d93 [2023-02-16 02:55:08,950 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c4098bd3/fe879c0aaa2b41d7b699f13fcdc7b2c4 [2023-02-16 02:55:08,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:55:08,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:55:08,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:55:08,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:55:08,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:55:08,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:55:08" (1/1) ... [2023-02-16 02:55:08,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73a06231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:08, skipping insertion in model container [2023-02-16 02:55:08,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:55:08" (1/1) ... [2023-02-16 02:55:08,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:55:08,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:55:09,092 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] [2023-02-16 02:55:09,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:55:09,110 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:55:09,123 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] [2023-02-16 02:55:09,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:55:09,136 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:55:09,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09 WrapperNode [2023-02-16 02:55:09,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:55:09,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:55:09,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:55:09,138 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:55:09,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,168 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-16 02:55:09,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:55:09,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:55:09,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:55:09,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:55:09,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:55:09,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:55:09,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:55:09,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:55:09,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (1/1) ... [2023-02-16 02:55:09,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:55:09,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:09,224 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) [2023-02-16 02:55:09,237 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 [2023-02-16 02:55:09,270 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2023-02-16 02:55:09,270 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2023-02-16 02:55:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:55:09,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:55:09,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:55:09,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:55:09,320 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:55:09,323 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:55:09,401 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:55:09,406 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:55:09,407 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-16 02:55:09,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:55:09 BoogieIcfgContainer [2023-02-16 02:55:09,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:55:09,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:55:09,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:55:09,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:55:09,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:55:08" (1/3) ... [2023-02-16 02:55:09,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2711ff6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:55:09, skipping insertion in model container [2023-02-16 02:55:09,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:55:09" (2/3) ... [2023-02-16 02:55:09,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2711ff6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:55:09, skipping insertion in model container [2023-02-16 02:55:09,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:55:09" (3/3) ... [2023-02-16 02:55:09,415 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2023-02-16 02:55:09,429 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:55:09,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:55:09,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:55:09,467 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;@665e9521, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:55:09,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:55:09,470 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) [2023-02-16 02:55:09,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-16 02:55:09,476 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:09,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:09,477 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:09,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:09,481 INFO L85 PathProgramCache]: Analyzing trace with hash 117289724, now seen corresponding path program 1 times [2023-02-16 02:55:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:09,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320914938] [2023-02-16 02:55:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:09,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:55:09,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:09,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320914938] [2023-02-16 02:55:09,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320914938] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:55:09,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:55:09,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:55:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165035595] [2023-02-16 02:55:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:55:09,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:55:09,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:55:09,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:55:09,821 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) [2023-02-16 02:55:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:09,912 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-02-16 02:55:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 02:55:09,914 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 [2023-02-16 02:55:09,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:09,924 INFO L225 Difference]: With dead ends: 28 [2023-02-16 02:55:09,924 INFO L226 Difference]: Without dead ends: 18 [2023-02-16 02:55:09,927 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 [2023-02-16 02:55:09,933 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:09,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 39 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:55:09,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-16 02:55:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-16 02:55:09,961 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) [2023-02-16 02:55:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-16 02:55:09,964 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-02-16 02:55:09,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:09,965 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-16 02:55:09,965 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) [2023-02-16 02:55:09,965 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-16 02:55:09,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-16 02:55:09,967 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:09,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:09,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 02:55:09,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:09,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:09,968 INFO L85 PathProgramCache]: Analyzing trace with hash 36927066, now seen corresponding path program 1 times [2023-02-16 02:55:09,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:09,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249453114] [2023-02-16 02:55:09,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:09,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 02:55:10,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:10,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249453114] [2023-02-16 02:55:10,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249453114] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:55:10,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:55:10,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 02:55:10,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160048727] [2023-02-16 02:55:10,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:55:10,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 02:55:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:10,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 02:55:10,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 02:55:10,072 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) [2023-02-16 02:55:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:10,109 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-02-16 02:55:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 02:55:10,111 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 [2023-02-16 02:55:10,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:10,112 INFO L225 Difference]: With dead ends: 24 [2023-02-16 02:55:10,112 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 02:55:10,113 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 [2023-02-16 02:55:10,114 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 [2023-02-16 02:55:10,114 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] [2023-02-16 02:55:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 02:55:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2023-02-16 02:55:10,118 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) [2023-02-16 02:55:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-16 02:55:10,118 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2023-02-16 02:55:10,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:10,119 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-16 02:55:10,119 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) [2023-02-16 02:55:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-16 02:55:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-16 02:55:10,120 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:10,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:10,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 02:55:10,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:10,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:10,121 INFO L85 PathProgramCache]: Analyzing trace with hash 703243533, now seen corresponding path program 1 times [2023-02-16 02:55:10,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:10,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345790279] [2023-02-16 02:55:10,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:10,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 02:55:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 02:55:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:10,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345790279] [2023-02-16 02:55:10,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345790279] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:10,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508400412] [2023-02-16 02:55:10,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:10,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:10,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:10,293 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) [2023-02-16 02:55:10,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:55:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 02:55:10,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:10,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 02:55:10,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 02:55:10,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508400412] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:10,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:10,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2023-02-16 02:55:10,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713531146] [2023-02-16 02:55:10,614 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:10,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 02:55:10,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:10,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 02:55:10,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:55:10,616 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) [2023-02-16 02:55:10,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:10,700 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2023-02-16 02:55:10,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 02:55:10,700 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 [2023-02-16 02:55:10,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:10,701 INFO L225 Difference]: With dead ends: 35 [2023-02-16 02:55:10,702 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 02:55:10,703 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 [2023-02-16 02:55:10,704 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 [2023-02-16 02:55:10,704 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] [2023-02-16 02:55:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 02:55:10,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-16 02:55:10,709 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) [2023-02-16 02:55:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-02-16 02:55:10,710 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2023-02-16 02:55:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:10,711 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-02-16 02:55:10,711 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) [2023-02-16 02:55:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-02-16 02:55:10,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 02:55:10,713 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:10,713 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:10,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:10,920 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 [2023-02-16 02:55:10,921 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash 187716987, now seen corresponding path program 1 times [2023-02-16 02:55:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638036378] [2023-02-16 02:55:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:10,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:10,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 02:55:11,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:11,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638036378] [2023-02-16 02:55:11,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638036378] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:11,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900804559] [2023-02-16 02:55:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:11,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:11,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:11,080 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) [2023-02-16 02:55:11,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:55:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 02:55:11,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:11,154 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 02:55:11,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:11,309 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 02:55:11,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900804559] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:11,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:11,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2023-02-16 02:55:11,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013241483] [2023-02-16 02:55:11,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:11,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 02:55:11,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:11,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 02:55:11,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-02-16 02:55:11,312 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) [2023-02-16 02:55:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:11,381 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-02-16 02:55:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 02:55:11,381 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 [2023-02-16 02:55:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:11,383 INFO L225 Difference]: With dead ends: 38 [2023-02-16 02:55:11,383 INFO L226 Difference]: Without dead ends: 34 [2023-02-16 02:55:11,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-02-16 02:55:11,385 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, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:11,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 56 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:55:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-16 02:55:11,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-16 02:55:11,391 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) [2023-02-16 02:55:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2023-02-16 02:55:11,393 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2023-02-16 02:55:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:11,393 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2023-02-16 02:55:11,393 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) [2023-02-16 02:55:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-02-16 02:55:11,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-16 02:55:11,395 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:11,395 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:11,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:11,608 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 [2023-02-16 02:55:11,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:11,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:11,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1151618030, now seen corresponding path program 2 times [2023-02-16 02:55:11,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022903992] [2023-02-16 02:55:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:11,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:11,752 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-16 02:55:11,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:11,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022903992] [2023-02-16 02:55:11,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022903992] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:11,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855686114] [2023-02-16 02:55:11,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:55:11,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:11,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:11,754 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) [2023-02-16 02:55:11,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:55:11,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:55:11,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:11,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 02:55:11,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-02-16 02:55:11,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-16 02:55:12,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855686114] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:12,100 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:12,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2023-02-16 02:55:12,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124750834] [2023-02-16 02:55:12,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:12,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 02:55:12,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 02:55:12,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-02-16 02:55:12,102 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) [2023-02-16 02:55:12,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:12,237 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions. [2023-02-16 02:55:12,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-16 02:55:12,237 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 [2023-02-16 02:55:12,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:12,238 INFO L225 Difference]: With dead ends: 69 [2023-02-16 02:55:12,238 INFO L226 Difference]: Without dead ends: 38 [2023-02-16 02:55:12,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506 [2023-02-16 02:55:12,240 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 [2023-02-16 02:55:12,240 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] [2023-02-16 02:55:12,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-16 02:55:12,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-16 02:55:12,246 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) [2023-02-16 02:55:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-02-16 02:55:12,247 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2023-02-16 02:55:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:12,247 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-02-16 02:55:12,247 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) [2023-02-16 02:55:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-02-16 02:55:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-16 02:55:12,249 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:12,249 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:12,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-16 02:55:12,455 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 [2023-02-16 02:55:12,456 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:12,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:12,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1673648870, now seen corresponding path program 3 times [2023-02-16 02:55:12,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:12,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193077980] [2023-02-16 02:55:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:12,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:12,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:12,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:12,710 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-16 02:55:12,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:12,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193077980] [2023-02-16 02:55:12,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193077980] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:12,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876037593] [2023-02-16 02:55:12,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:55:12,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:12,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:12,712 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) [2023-02-16 02:55:12,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:55:12,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-16 02:55:12,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:12,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 02:55:12,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:12,853 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-02-16 02:55:12,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:13,182 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 29 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-16 02:55:13,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876037593] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:13,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:13,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2023-02-16 02:55:13,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999894694] [2023-02-16 02:55:13,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:13,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 02:55:13,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:13,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 02:55:13,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-02-16 02:55:13,188 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) [2023-02-16 02:55:13,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:13,289 INFO L93 Difference]: Finished difference Result 85 states and 124 transitions. [2023-02-16 02:55:13,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 02:55:13,291 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 [2023-02-16 02:55:13,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:13,294 INFO L225 Difference]: With dead ends: 85 [2023-02-16 02:55:13,296 INFO L226 Difference]: Without dead ends: 50 [2023-02-16 02:55:13,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 135 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:55:13,300 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:13,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:55:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-16 02:55:13,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2023-02-16 02:55:13,310 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) [2023-02-16 02:55:13,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-02-16 02:55:13,313 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 65 [2023-02-16 02:55:13,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:13,315 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-02-16 02:55:13,315 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) [2023-02-16 02:55:13,315 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-02-16 02:55:13,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-02-16 02:55:13,320 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:13,320 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:13,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:13,543 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 [2023-02-16 02:55:13,543 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:13,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:13,544 INFO L85 PathProgramCache]: Analyzing trace with hash 917554903, now seen corresponding path program 4 times [2023-02-16 02:55:13,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:13,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137775809] [2023-02-16 02:55:13,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:13,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:13,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:13,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:14,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:14,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 198 proven. 308 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-02-16 02:55:14,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:14,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137775809] [2023-02-16 02:55:14,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137775809] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:14,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684443451] [2023-02-16 02:55:14,112 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 02:55:14,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:14,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:14,129 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) [2023-02-16 02:55:14,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:55:14,224 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 02:55:14,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:14,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 02:55:14,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:14,298 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-02-16 02:55:14,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:15,017 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 352 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-02-16 02:55:15,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684443451] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:15,018 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:15,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 13] total 27 [2023-02-16 02:55:15,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663191568] [2023-02-16 02:55:15,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:15,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-16 02:55:15,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-16 02:55:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2023-02-16 02:55:15,022 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) [2023-02-16 02:55:15,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:15,258 INFO L93 Difference]: Finished difference Result 112 states and 192 transitions. [2023-02-16 02:55:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-16 02:55:15,259 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 [2023-02-16 02:55:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:15,262 INFO L225 Difference]: With dead ends: 112 [2023-02-16 02:55:15,262 INFO L226 Difference]: Without dead ends: 71 [2023-02-16 02:55:15,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 291 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=349, Invalid=983, Unknown=0, NotChecked=0, Total=1332 [2023-02-16 02:55:15,264 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 74 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:15,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 150 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:55:15,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-16 02:55:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2023-02-16 02:55:15,278 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) [2023-02-16 02:55:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2023-02-16 02:55:15,279 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 133 [2023-02-16 02:55:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:15,280 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2023-02-16 02:55:15,280 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) [2023-02-16 02:55:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2023-02-16 02:55:15,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-02-16 02:55:15,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:15,286 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:15,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-16 02:55:15,491 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 [2023-02-16 02:55:15,492 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:15,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:15,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1778838455, now seen corresponding path program 5 times [2023-02-16 02:55:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:15,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739580440] [2023-02-16 02:55:15,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:15,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:15,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:15,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:15,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:15,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:15,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:16,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:16,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:16,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 403 proven. 706 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2023-02-16 02:55:16,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:16,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739580440] [2023-02-16 02:55:16,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739580440] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:16,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886474979] [2023-02-16 02:55:16,128 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 02:55:16,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:16,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:16,145 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) [2023-02-16 02:55:16,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:55:16,261 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-16 02:55:16,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:16,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-16 02:55:16,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 630 proven. 571 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2023-02-16 02:55:16,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:17,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 632 proven. 605 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-02-16 02:55:17,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886474979] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:17,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:17,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 34 [2023-02-16 02:55:17,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635571557] [2023-02-16 02:55:17,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:17,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-16 02:55:17,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-16 02:55:17,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2023-02-16 02:55:17,759 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) [2023-02-16 02:55:18,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:18,251 INFO L93 Difference]: Finished difference Result 147 states and 243 transitions. [2023-02-16 02:55:18,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-16 02:55:18,251 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 [2023-02-16 02:55:18,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:18,254 INFO L225 Difference]: With dead ends: 147 [2023-02-16 02:55:18,254 INFO L226 Difference]: Without dead ends: 91 [2023-02-16 02:55:18,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 468 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=650, Invalid=2002, Unknown=0, NotChecked=0, Total=2652 [2023-02-16 02:55:18,256 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 129 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:18,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 158 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:55:18,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-16 02:55:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2023-02-16 02:55:18,277 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) [2023-02-16 02:55:18,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2023-02-16 02:55:18,279 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 215 [2023-02-16 02:55:18,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:18,280 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2023-02-16 02:55:18,280 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) [2023-02-16 02:55:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2023-02-16 02:55:18,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-02-16 02:55:18,285 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:18,285 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 38, 23, 23, 23, 23, 23, 23, 23, 15, 9, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:18,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:18,493 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 [2023-02-16 02:55:18,493 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:18,494 INFO L85 PathProgramCache]: Analyzing trace with hash 88549517, now seen corresponding path program 6 times [2023-02-16 02:55:18,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:18,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726056559] [2023-02-16 02:55:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:18,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:18,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1307 proven. 1260 refuted. 0 times theorem prover too weak. 3472 trivial. 0 not checked. [2023-02-16 02:55:19,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:19,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726056559] [2023-02-16 02:55:19,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726056559] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:19,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666325652] [2023-02-16 02:55:19,586 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 02:55:19,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:19,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:19,601 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) [2023-02-16 02:55:19,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 02:55:19,731 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2023-02-16 02:55:19,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:19,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-16 02:55:19,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:19,801 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 346 proven. 1004 refuted. 0 times theorem prover too weak. 4689 trivial. 0 not checked. [2023-02-16 02:55:19,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 350 proven. 1040 refuted. 0 times theorem prover too weak. 4649 trivial. 0 not checked. [2023-02-16 02:55:20,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666325652] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:20,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:20,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 15] total 32 [2023-02-16 02:55:20,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850000025] [2023-02-16 02:55:20,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:20,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-16 02:55:20,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-16 02:55:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2023-02-16 02:55:20,894 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) [2023-02-16 02:55:21,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:21,294 INFO L93 Difference]: Finished difference Result 193 states and 312 transitions. [2023-02-16 02:55:21,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-16 02:55:21,295 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 [2023-02-16 02:55:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:21,296 INFO L225 Difference]: With dead ends: 193 [2023-02-16 02:55:21,297 INFO L226 Difference]: Without dead ends: 120 [2023-02-16 02:55:21,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 733 SyntacticMatches, 6 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=624, Invalid=1926, Unknown=0, NotChecked=0, Total=2550 [2023-02-16 02:55:21,298 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 119 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:21,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 188 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 02:55:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-16 02:55:21,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2023-02-16 02:55:21,306 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) [2023-02-16 02:55:21,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2023-02-16 02:55:21,307 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 324 [2023-02-16 02:55:21,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:21,307 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2023-02-16 02:55:21,307 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) [2023-02-16 02:55:21,307 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2023-02-16 02:55:21,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-02-16 02:55:21,323 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:21,323 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 75, 46, 46, 46, 46, 46, 46, 46, 29, 18, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:21,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:21,523 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 [2023-02-16 02:55:21,524 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:21,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:21,524 INFO L85 PathProgramCache]: Analyzing trace with hash 793898644, now seen corresponding path program 7 times [2023-02-16 02:55:21,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:21,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341396416] [2023-02-16 02:55:21,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:21,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:22,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:22,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-16 02:55:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:23,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:23,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-02-16 02:55:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 2111 proven. 4081 refuted. 0 times theorem prover too weak. 17835 trivial. 0 not checked. [2023-02-16 02:55:23,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341396416] [2023-02-16 02:55:23,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341396416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746863446] [2023-02-16 02:55:23,566 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 02:55:23,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:23,568 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) [2023-02-16 02:55:23,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 02:55:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:23,792 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-16 02:55:23,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:23,899 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3361 refuted. 0 times theorem prover too weak. 20240 trivial. 0 not checked. [2023-02-16 02:55:23,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:26,603 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3438 refuted. 0 times theorem prover too weak. 20163 trivial. 0 not checked. [2023-02-16 02:55:26,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746863446] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:26,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:26,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 12, 19] total 39 [2023-02-16 02:55:26,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876673512] [2023-02-16 02:55:26,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:26,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-16 02:55:26,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:26,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-16 02:55:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1125, Unknown=0, NotChecked=0, Total=1482 [2023-02-16 02:55:26,606 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) [2023-02-16 02:55:27,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:27,153 INFO L93 Difference]: Finished difference Result 236 states and 390 transitions. [2023-02-16 02:55:27,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-16 02:55:27,154 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 [2023-02-16 02:55:27,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:27,156 INFO L225 Difference]: With dead ends: 236 [2023-02-16 02:55:27,156 INFO L226 Difference]: Without dead ends: 146 [2023-02-16 02:55:27,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1512 GetRequests, 1441 SyntacticMatches, 9 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1428 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=967, Invalid=3065, Unknown=0, NotChecked=0, Total=4032 [2023-02-16 02:55:27,158 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 200 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:27,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 201 Invalid, 992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:55:27,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-02-16 02:55:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2023-02-16 02:55:27,186 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) [2023-02-16 02:55:27,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2023-02-16 02:55:27,188 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 637 [2023-02-16 02:55:27,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:27,189 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2023-02-16 02:55:27,190 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) [2023-02-16 02:55:27,190 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2023-02-16 02:55:27,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2023-02-16 02:55:27,201 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:27,201 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:27,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:27,409 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 [2023-02-16 02:55:27,409 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:27,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:27,410 INFO L85 PathProgramCache]: Analyzing trace with hash 597528604, now seen corresponding path program 8 times [2023-02-16 02:55:27,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:27,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826529873] [2023-02-16 02:55:27,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:27,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:36,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:38,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:38,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:38,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-16 02:55:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:40,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:40,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-02-16 02:55:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:40,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:41,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-16 02:55:41,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:41,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826529873] [2023-02-16 02:55:41,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826529873] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:41,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366123383] [2023-02-16 02:55:41,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:55:41,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:41,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:41,425 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) [2023-02-16 02:55:41,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 02:55:41,724 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:55:41,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:41,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 439 conjunts are in the unsatisfiable core [2023-02-16 02:55:41,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:43,750 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-16 02:55:43,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:47,858 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-16 02:55:47,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366123383] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:47,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:47,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2023-02-16 02:55:47,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301778684] [2023-02-16 02:55:47,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:47,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-02-16 02:55:47,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:47,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-02-16 02:55:47,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-16 02:55:47,862 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) [2023-02-16 02:55:48,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:48,186 INFO L93 Difference]: Finished difference Result 143 states and 220 transitions. [2023-02-16 02:55:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-16 02:55:48,187 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 [2023-02-16 02:55:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:48,194 INFO L225 Difference]: With dead ends: 143 [2023-02-16 02:55:48,195 INFO L226 Difference]: Without dead ends: 139 [2023-02-16 02:55:48,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1929 GetRequests, 1783 SyntacticMatches, 112 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-16 02:55:48,198 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:48,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 983 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 02:55:48,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-02-16 02:55:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 132. [2023-02-16 02:55:48,228 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) [2023-02-16 02:55:48,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 202 transitions. [2023-02-16 02:55:48,229 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 202 transitions. Word has length 746 [2023-02-16 02:55:48,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:48,236 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 202 transitions. [2023-02-16 02:55:48,237 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) [2023-02-16 02:55:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 202 transitions. [2023-02-16 02:55:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2023-02-16 02:55:48,251 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:55:48,251 INFO L195 NwaCegarLoop]: trace histogram [167, 167, 135, 83, 83, 83, 83, 83, 83, 83, 52, 32, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:55:48,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:48,459 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 [2023-02-16 02:55:48,459 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:55:48,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:55:48,460 INFO L85 PathProgramCache]: Analyzing trace with hash -18297609, now seen corresponding path program 9 times [2023-02-16 02:55:48,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:55:48,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850541869] [2023-02-16 02:55:48,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:55:48,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:55:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:49,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 02:55:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:50,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:50,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-16 02:55:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:50,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-16 02:55:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:51,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2023-02-16 02:55:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:51,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-16 02:55:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-16 02:55:51,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-16 02:55:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 02:55:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-16 02:55:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 02:55:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-16 02:55:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-16 02:55:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-16 02:55:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:55:51,504 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 2273 proven. 8133 refuted. 0 times theorem prover too weak. 67695 trivial. 0 not checked. [2023-02-16 02:55:51,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:55:51,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850541869] [2023-02-16 02:55:51,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850541869] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:55:51,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987634994] [2023-02-16 02:55:51,505 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:55:51,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:55:51,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:55:51,506 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) [2023-02-16 02:55:51,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 02:55:51,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2023-02-16 02:55:51,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:55:51,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-16 02:55:51,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:55:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1219 proven. 7041 refuted. 0 times theorem prover too weak. 69841 trivial. 0 not checked. [2023-02-16 02:55:51,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:55:55,886 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1211 proven. 7141 refuted. 0 times theorem prover too weak. 69749 trivial. 0 not checked. [2023-02-16 02:55:55,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987634994] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:55:55,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 02:55:55,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 22] total 40 [2023-02-16 02:55:55,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260635872] [2023-02-16 02:55:55,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 02:55:55,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-16 02:55:55,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:55:55,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-16 02:55:55,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1201, Unknown=0, NotChecked=0, Total=1560 [2023-02-16 02:55:55,896 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) [2023-02-16 02:55:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:55:56,486 INFO L93 Difference]: Finished difference Result 278 states and 509 transitions. [2023-02-16 02:55:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-16 02:55:56,486 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 [2023-02-16 02:55:56,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:55:56,491 INFO L225 Difference]: With dead ends: 278 [2023-02-16 02:55:56,492 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 02:55:56,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2653 GetRequests, 2592 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=674, Invalid=2082, Unknown=0, NotChecked=0, Total=2756 [2023-02-16 02:55:56,496 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 118 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 02:55:56,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 300 Invalid, 1215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 02:55:56,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 02:55:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 02:55:56,497 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) [2023-02-16 02:55:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 02:55:56,497 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1141 [2023-02-16 02:55:56,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:55:56,498 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 02:55:56,498 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) [2023-02-16 02:55:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 02:55:56,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 02:55:56,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-16 02:55:56,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 02:55:56,708 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 [2023-02-16 02:55:56,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-16 02:55:57,164 INFO L899 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2023-02-16 02:55:57,165 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (= fibonacci_~n |fibonacci_#in~n|) (<= 2 fibonacci_~n)) [2023-02-16 02:55:57,165 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-16 02:55:57,165 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 (<= |fibonacci_#t~ret4| 13) .cse0 (<= |fibonacci_#in~n| 8) (<= 8 fibonacci_~n) (<= 13 |fibonacci_#t~ret4|)) (and .cse0 (<= 10 |fibonacci_#in~n|)) (and (<= fibonacci_~n 4) .cse0 (<= 2 |fibonacci_#t~ret4|) (<= 4 fibonacci_~n) (<= |fibonacci_#t~ret4| 2)) (and (<= 21 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 21) .cse0 (<= 9 |fibonacci_#in~n|)) (and (<= |fibonacci_#t~ret4| 5) .cse0 (<= fibonacci_~n 6) (<= 5 |fibonacci_#t~ret4|) (<= 6 fibonacci_~n)) (and .cse1 (<= 3 |fibonacci_#in~n|) (<= fibonacci_~n 3) .cse0 .cse2) (and (<= 8 |fibonacci_#t~ret4|) .cse0 (<= fibonacci_~n 7) (<= 7 fibonacci_~n) (<= |fibonacci_#t~ret4| 8)) (and .cse1 .cse0 (<= fibonacci_~n 2) .cse2 (<= 2 fibonacci_~n)) (and (<= 3 |fibonacci_#t~ret4|) (<= 5 fibonacci_~n) .cse0 (<= fibonacci_~n 5) (<= |fibonacci_#t~ret4| 3)))) [2023-02-16 02:55:57,165 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 24) the Hoare annotation is: true [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-16 02:55:57,166 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2023-02-16 02:55:57,167 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)) [2023-02-16 02:55:57,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-16 02:55:57,167 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-02-16 02:55:57,167 INFO L895 garLoopResultBuilder]: At program point L27(lines 27 35) the Hoare annotation is: (<= 9 |ULTIMATE.start_main_~x~0#1|) [2023-02-16 02:55:57,167 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2023-02-16 02:55:57,167 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-16 02:55:57,170 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-02-16 02:55:57,173 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 02:55:57,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 02:55:57 BoogieIcfgContainer [2023-02-16 02:55:57,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 02:55:57,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 02:55:57,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 02:55:57,186 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 02:55:57,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:55:09" (3/4) ... [2023-02-16 02:55:57,189 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-16 02:55:57,195 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2023-02-16 02:55:57,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-16 02:55:57,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-16 02:55:57,198 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-16 02:55:57,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-16 02:55:57,225 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 02:55:57,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 02:55:57,226 INFO L158 Benchmark]: Toolchain (without parser) took 48273.12ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 93.3MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 258.8MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,226 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:55:57,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.17ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 82.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.46ms. Allocated memory is still 140.5MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,227 INFO L158 Benchmark]: Boogie Preprocessor took 22.17ms. Allocated memory is still 140.5MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 993.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:55:57,227 INFO L158 Benchmark]: RCFGBuilder took 216.69ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,228 INFO L158 Benchmark]: TraceAbstraction took 47775.12ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 70.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 231.5MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,228 INFO L158 Benchmark]: Witness Printer took 39.67ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-16 02:55:57,229 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.17ms. Allocated memory is still 140.5MB. Free memory was 92.8MB in the beginning and 82.8MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.46ms. Allocated memory is still 140.5MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.17ms. Allocated memory is still 140.5MB. Free memory was 81.7MB in the beginning and 80.7MB in the end (delta: 993.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.69ms. Allocated memory is still 140.5MB. Free memory was 80.7MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 47775.12ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 70.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 231.5MB. Max. memory is 16.1GB. * Witness Printer took 39.67ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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: 47.7s, OverallIterations: 12, TraceHistogramMax: 167, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.1s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 819 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 773 mSDsluCounter, 2329 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2029 mSDsCounter, 1379 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4323 IncrementalHoareTripleChecker+Invalid, 5702 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1379 mSolverCounterUnsat, 300 mSDtfsCounter, 4323 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8135 GetRequests, 7618 SyntacticMatches, 166 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5774 ImplicationChecksByTransitivity, 4.5s 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, 5699 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 39.7s InterpolantComputationTime, 6711 NumberOfCodeBlocks, 5628 NumberOfCodeBlocksAsserted, 105 NumberOfCheckSat, 10024 ConstructedInterpolants, 0 QuantifiedInterpolants, 20967 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! [2023-02-16 02:55:57,246 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