./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 e8d55036 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-?-e8d5503-m [2023-02-15 21:35:38,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 21:35:38,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 21:35:38,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 21:35:38,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 21:35:38,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 21:35:38,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 21:35:38,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 21:35:38,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 21:35:38,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 21:35:38,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 21:35:38,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 21:35:38,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 21:35:38,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 21:35:38,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 21:35:38,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 21:35:38,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 21:35:38,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 21:35:38,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 21:35:38,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 21:35:38,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 21:35:38,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 21:35:38,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 21:35:38,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 21:35:38,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 21:35:38,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 21:35:38,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 21:35:38,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 21:35:38,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 21:35:38,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 21:35:38,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 21:35:38,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 21:35:38,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 21:35:38,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 21:35:38,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 21:35:38,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 21:35:38,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 21:35:38,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 21:35:38,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 21:35:38,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 21:35:38,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 21:35:38,773 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 21:35:38,795 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 21:35:38,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 21:35:38,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 21:35:38,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 21:35:38,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 21:35:38,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 21:35:38,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 21:35:38,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 21:35:38,797 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 21:35:38,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 21:35:38,798 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 21:35:38,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 21:35:38,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 21:35:38,800 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 21:35:38,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 21:35:38,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 21:35:38,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 21:35:38,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 21:35:38,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 21:35:38,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 21:35:38,801 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 21:35:38,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 21:35:38,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 21:35:38,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 21:35:38,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 21:35:38,802 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 21:35:38,802 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 21:35:38,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 21:35:38,802 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 21:35:38,802 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7261cadd839cd02322bb28945f92ad1bd2170c0a65dd385996b5ff81cbb1de7 [2023-02-15 21:35:38,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 21:35:39,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 21:35:39,002 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 21:35:39,003 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 21:35:39,003 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 21:35:39,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-15 21:35:40,061 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 21:35:40,212 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 21:35:40,213 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c [2023-02-15 21:35:40,217 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240fe37ec/832a9db319384588b9c02ecdf37ade1e/FLAG526446fd5 [2023-02-15 21:35:40,226 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240fe37ec/832a9db319384588b9c02ecdf37ade1e [2023-02-15 21:35:40,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 21:35:40,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 21:35:40,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 21:35:40,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 21:35:40,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 21:35:40,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c06d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40, skipping insertion in model container [2023-02-15 21:35:40,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 21:35:40,247 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 21:35:40,374 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-02-15 21:35:40,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 21:35:40,387 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 21:35:40,397 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Fibonacci02.c[715,728] [2023-02-15 21:35:40,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 21:35:40,406 INFO L208 MainTranslator]: Completed translation [2023-02-15 21:35:40,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40 WrapperNode [2023-02-15 21:35:40,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 21:35:40,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 21:35:40,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 21:35:40,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 21:35:40,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,426 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-15 21:35:40,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 21:35:40,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 21:35:40,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 21:35:40,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 21:35:40,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,441 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 21:35:40,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 21:35:40,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 21:35:40,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 21:35:40,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (1/1) ... [2023-02-15 21:35:40,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 21:35:40,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:40,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 21:35:40,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 21:35:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2023-02-15 21:35:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2023-02-15 21:35:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 21:35:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 21:35:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 21:35:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 21:35:40,537 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 21:35:40,540 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 21:35:40,626 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 21:35:40,630 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 21:35:40,630 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-15 21:35:40,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:35:40 BoogieIcfgContainer [2023-02-15 21:35:40,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 21:35:40,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 21:35:40,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 21:35:40,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 21:35:40,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 09:35:40" (1/3) ... [2023-02-15 21:35:40,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5508317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 09:35:40, skipping insertion in model container [2023-02-15 21:35:40,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 09:35:40" (2/3) ... [2023-02-15 21:35:40,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5508317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 09:35:40, skipping insertion in model container [2023-02-15 21:35:40,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:35:40" (3/3) ... [2023-02-15 21:35:40,640 INFO L112 eAbstractionObserver]: Analyzing ICFG Fibonacci02.c [2023-02-15 21:35:40,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 21:35:40,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 21:35:40,693 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 21:35:40,699 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;@59f6ef49, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 21:35:40,699 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 21:35:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 21:35:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 21:35:40,707 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:40,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:40,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:40,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:40,732 INFO L85 PathProgramCache]: Analyzing trace with hash 117289724, now seen corresponding path program 1 times [2023-02-15 21:35:40,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:40,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443091255] [2023-02-15 21:35:40,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:40,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:40,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 21:35:40,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:40,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443091255] [2023-02-15 21:35:40,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443091255] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 21:35:40,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 21:35:40,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 21:35:40,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089276884] [2023-02-15 21:35:40,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 21:35:40,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 21:35:40,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 21:35:40,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 21:35:40,967 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 21:35:41,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:41,071 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2023-02-15 21:35:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 21:35:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-02-15 21:35:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:41,078 INFO L225 Difference]: With dead ends: 28 [2023-02-15 21:35:41,078 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 21:35:41,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 21:35:41,082 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 [2023-02-15 21:35:41,083 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] [2023-02-15 21:35:41,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 21:35:41,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 21:35:41,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 21:35:41,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-15 21:35:41,123 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2023-02-15 21:35:41,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:41,123 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-15 21:35:41,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 21:35:41,124 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-15 21:35:41,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 21:35:41,125 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:41,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:41,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 21:35:41,126 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:41,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:41,126 INFO L85 PathProgramCache]: Analyzing trace with hash 36927066, now seen corresponding path program 1 times [2023-02-15 21:35:41,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:41,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180747849] [2023-02-15 21:35:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:41,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 21:35:41,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:41,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180747849] [2023-02-15 21:35:41,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180747849] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 21:35:41,202 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 21:35:41,202 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 21:35:41,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661193330] [2023-02-15 21:35:41,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 21:35:41,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 21:35:41,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:41,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 21:35:41,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 21:35:41,218 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 21:35:41,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:41,251 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2023-02-15 21:35:41,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 21:35:41,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-02-15 21:35:41,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:41,253 INFO L225 Difference]: With dead ends: 24 [2023-02-15 21:35:41,253 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 21:35:41,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 21:35:41,254 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:41,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 21:35:41,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 21:35:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2023-02-15 21:35:41,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 21:35:41,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-02-15 21:35:41,259 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11 [2023-02-15 21:35:41,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:41,260 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-02-15 21:35:41,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 21:35:41,260 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-02-15 21:35:41,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-15 21:35:41,261 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:41,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:41,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 21:35:41,261 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:41,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:41,262 INFO L85 PathProgramCache]: Analyzing trace with hash 703243533, now seen corresponding path program 1 times [2023-02-15 21:35:41,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:41,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024224675] [2023-02-15 21:35:41,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:41,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 21:35:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 21:35:41,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:41,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024224675] [2023-02-15 21:35:41,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024224675] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:41,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356791846] [2023-02-15 21:35:41,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:41,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:41,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:41,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:41,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 21:35:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 21:35:41,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 21:35:41,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:41,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 21:35:41,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356791846] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:41,605 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:41,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12 [2023-02-15 21:35:41,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322348965] [2023-02-15 21:35:41,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:41,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 21:35:41,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:41,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 21:35:41,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-15 21:35:41,608 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 21:35:41,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:41,667 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2023-02-15 21:35:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 21:35:41,668 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2023-02-15 21:35:41,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:41,669 INFO L225 Difference]: With dead ends: 35 [2023-02-15 21:35:41,669 INFO L226 Difference]: Without dead ends: 20 [2023-02-15 21:35:41,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-02-15 21:35:41,670 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:41,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 61 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 21:35:41,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-15 21:35:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-15 21:35:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 21:35:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-02-15 21:35:41,675 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23 [2023-02-15 21:35:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:41,675 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-02-15 21:35:41,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-15 21:35:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-02-15 21:35:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 21:35:41,677 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:41,677 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:41,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 21:35:41,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:41,897 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:41,898 INFO L85 PathProgramCache]: Analyzing trace with hash 187716987, now seen corresponding path program 1 times [2023-02-15 21:35:41,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665906081] [2023-02-15 21:35:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 21:35:41,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665906081] [2023-02-15 21:35:41,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665906081] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:41,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741871625] [2023-02-15 21:35:41,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:41,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:41,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:41,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:42,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 21:35:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 21:35:42,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:42,094 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 21:35:42,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:42,223 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 21:35:42,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741871625] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:42,223 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:42,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11 [2023-02-15 21:35:42,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119039233] [2023-02-15 21:35:42,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:42,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 21:35:42,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:42,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 21:35:42,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-02-15 21:35:42,225 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 21:35:42,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:42,302 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2023-02-15 21:35:42,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 21:35:42,303 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2023-02-15 21:35:42,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:42,307 INFO L225 Difference]: With dead ends: 38 [2023-02-15 21:35:42,307 INFO L226 Difference]: Without dead ends: 34 [2023-02-15 21:35:42,308 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 [2023-02-15 21:35:42,310 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 24 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:42,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 56 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 21:35:42,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-15 21:35:42,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-15 21:35:42,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-15 21:35:42,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2023-02-15 21:35:42,328 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24 [2023-02-15 21:35:42,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:42,330 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2023-02-15 21:35:42,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-15 21:35:42,331 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2023-02-15 21:35:42,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 21:35:42,333 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:42,333 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:42,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 21:35:42,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2023-02-15 21:35:42,541 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:42,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:42,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1151618030, now seen corresponding path program 2 times [2023-02-15 21:35:42,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:42,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925027291] [2023-02-15 21:35:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:42,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:42,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:42,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:42,686 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-15 21:35:42,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925027291] [2023-02-15 21:35:42,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925027291] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:42,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264071323] [2023-02-15 21:35:42,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 21:35:42,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:42,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:42,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:42,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 21:35:42,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 21:35:42,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:35:42,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 21:35:42,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:42,790 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-02-15 21:35:42,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-15 21:35:43,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264071323] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:43,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:43,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17 [2023-02-15 21:35:43,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776356227] [2023-02-15 21:35:43,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:43,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 21:35:43,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:43,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 21:35:43,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2023-02-15 21:35:43,032 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2023-02-15 21:35:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:43,158 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions. [2023-02-15 21:35:43,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 21:35:43,159 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) Word has length 37 [2023-02-15 21:35:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:43,160 INFO L225 Difference]: With dead ends: 69 [2023-02-15 21:35:43,160 INFO L226 Difference]: Without dead ends: 38 [2023-02-15 21:35:43,160 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 [2023-02-15 21:35:43,161 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 27 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:43,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 90 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 21:35:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-15 21:35:43,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-15 21:35:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 5 states have call successors, (5), 4 states have call predecessors, (5), 5 states have return successors, (11), 7 states have call predecessors, (11), 5 states have call successors, (11) [2023-02-15 21:35:43,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2023-02-15 21:35:43,166 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37 [2023-02-15 21:35:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:43,166 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-02-15 21:35:43,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (12), 1 states have call predecessors, (12), 7 states have return successors, (13), 6 states have call predecessors, (13), 10 states have call successors, (13) [2023-02-15 21:35:43,166 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2023-02-15 21:35:43,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-15 21:35:43,167 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:43,168 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:43,175 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 21:35:43,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:43,373 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:43,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:43,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1673648870, now seen corresponding path program 3 times [2023-02-15 21:35:43,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:43,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263337939] [2023-02-15 21:35:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:43,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:43,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-15 21:35:43,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:43,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263337939] [2023-02-15 21:35:43,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263337939] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:43,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873617507] [2023-02-15 21:35:43,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 21:35:43,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:43,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:43,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:43,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 21:35:43,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-15 21:35:43,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:35:43,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 21:35:43,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 22 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-02-15 21:35:43,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:43,995 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 65 proven. 29 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-15 21:35:43,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873617507] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:43,996 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:43,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 17 [2023-02-15 21:35:43,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899219938] [2023-02-15 21:35:43,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:43,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-15 21:35:43,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:43,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-15 21:35:43,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2023-02-15 21:35:43,998 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2023-02-15 21:35:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:44,109 INFO L93 Difference]: Finished difference Result 85 states and 124 transitions. [2023-02-15 21:35:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 21:35:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) Word has length 65 [2023-02-15 21:35:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:44,111 INFO L225 Difference]: With dead ends: 85 [2023-02-15 21:35:44,112 INFO L226 Difference]: Without dead ends: 50 [2023-02-15 21:35:44,112 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 [2023-02-15 21:35:44,113 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 [2023-02-15 21:35:44,113 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] [2023-02-15 21:35:44,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-15 21:35:44,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 47. [2023-02-15 21:35:44,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 32 states have internal predecessors, (38), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (16), 9 states have call predecessors, (16), 7 states have call successors, (16) [2023-02-15 21:35:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2023-02-15 21:35:44,118 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 65 [2023-02-15 21:35:44,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:44,119 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2023-02-15 21:35:44,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 6 states have return successors, (17), 11 states have call predecessors, (17), 10 states have call successors, (17) [2023-02-15 21:35:44,119 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2023-02-15 21:35:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-02-15 21:35:44,120 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:44,120 INFO L195 NwaCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:44,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 21:35:44,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:44,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:44,326 INFO L85 PathProgramCache]: Analyzing trace with hash 917554903, now seen corresponding path program 4 times [2023-02-15 21:35:44,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:44,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207745628] [2023-02-15 21:35:44,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:44,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:44,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 198 proven. 308 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-02-15 21:35:44,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207745628] [2023-02-15 21:35:44,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207745628] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752545372] [2023-02-15 21:35:44,741 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 21:35:44,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:44,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:44,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:44,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 21:35:44,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 21:35:44,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:35:44,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 21:35:44,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 326 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2023-02-15 21:35:44,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:45,497 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 52 proven. 352 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2023-02-15 21:35:45,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752545372] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:45,498 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:45,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9, 13] total 27 [2023-02-15 21:35:45,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141111098] [2023-02-15 21:35:45,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:45,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-15 21:35:45,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:45,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-15 21:35:45,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2023-02-15 21:35:45,501 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) [2023-02-15 21:35:45,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:45,737 INFO L93 Difference]: Finished difference Result 112 states and 192 transitions. [2023-02-15 21:35:45,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 21:35:45,737 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) Word has length 133 [2023-02-15 21:35:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:45,740 INFO L225 Difference]: With dead ends: 112 [2023-02-15 21:35:45,740 INFO L226 Difference]: Without dead ends: 71 [2023-02-15 21:35:45,742 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 [2023-02-15 21:35:45,742 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 [2023-02-15 21:35:45,742 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] [2023-02-15 21:35:45,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-15 21:35:45,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2023-02-15 21:35:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 46 states have internal predecessors, (53), 11 states have call successors, (11), 9 states have call predecessors, (11), 7 states have return successors, (25), 11 states have call predecessors, (25), 11 states have call successors, (25) [2023-02-15 21:35:45,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 89 transitions. [2023-02-15 21:35:45,748 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 89 transitions. Word has length 133 [2023-02-15 21:35:45,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:45,749 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 89 transitions. [2023-02-15 21:35:45,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 2.68) internal successors, (67), 27 states have internal predecessors, (67), 20 states have call successors, (22), 1 states have call predecessors, (22), 10 states have return successors, (31), 16 states have call predecessors, (31), 20 states have call successors, (31) [2023-02-15 21:35:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 89 transitions. [2023-02-15 21:35:45,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-02-15 21:35:45,750 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:45,751 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:45,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 21:35:45,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:45,956 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:45,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1778838455, now seen corresponding path program 5 times [2023-02-15 21:35:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:45,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114927545] [2023-02-15 21:35:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:45,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:46,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:46,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:35:46,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:46,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 403 proven. 706 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked. [2023-02-15 21:35:46,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:46,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114927545] [2023-02-15 21:35:46,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114927545] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:46,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374142198] [2023-02-15 21:35:46,534 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 21:35:46,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:46,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:46,536 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:46,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 21:35:46,687 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-15 21:35:46,687 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:35:46,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-15 21:35:46,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 630 proven. 571 refuted. 0 times theorem prover too weak. 1379 trivial. 0 not checked. [2023-02-15 21:35:46,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:48,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 632 proven. 605 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2023-02-15 21:35:48,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374142198] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:48,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:48,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 34 [2023-02-15 21:35:48,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792115451] [2023-02-15 21:35:48,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:48,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-15 21:35:48,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-15 21:35:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=254, Invalid=868, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 21:35:48,145 INFO L87 Difference]: Start difference. First operand 67 states and 89 transitions. Second operand has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) [2023-02-15 21:35:48,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:48,492 INFO L93 Difference]: Finished difference Result 147 states and 243 transitions. [2023-02-15 21:35:48,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 21:35:48,492 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) Word has length 215 [2023-02-15 21:35:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:48,496 INFO L225 Difference]: With dead ends: 147 [2023-02-15 21:35:48,496 INFO L226 Difference]: Without dead ends: 91 [2023-02-15 21:35:48,497 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 [2023-02-15 21:35:48,498 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, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:48,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 158 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 21:35:48,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-15 21:35:48,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 84. [2023-02-15 21:35:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 58 states have internal predecessors, (62), 15 states have call successors, (15), 12 states have call predecessors, (15), 8 states have return successors, (36), 13 states have call predecessors, (36), 15 states have call successors, (36) [2023-02-15 21:35:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 113 transitions. [2023-02-15 21:35:48,506 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 113 transitions. Word has length 215 [2023-02-15 21:35:48,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:48,506 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 113 transitions. [2023-02-15 21:35:48,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 2.757575757575758) internal successors, (91), 34 states have internal predecessors, (91), 24 states have call successors, (31), 1 states have call predecessors, (31), 13 states have return successors, (42), 21 states have call predecessors, (42), 24 states have call successors, (42) [2023-02-15 21:35:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 113 transitions. [2023-02-15 21:35:48,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2023-02-15 21:35:48,509 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:48,509 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 38, 23, 23, 23, 23, 23, 23, 23, 15, 9, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:48,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 21:35:48,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:48,717 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:48,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:48,718 INFO L85 PathProgramCache]: Analyzing trace with hash 88549517, now seen corresponding path program 6 times [2023-02-15 21:35:48,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:48,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934546368] [2023-02-15 21:35:48,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:48,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:48,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:49,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:35:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:35:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:49,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:49,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:35:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:49,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 1307 proven. 1260 refuted. 0 times theorem prover too weak. 3472 trivial. 0 not checked. [2023-02-15 21:35:49,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:49,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934546368] [2023-02-15 21:35:49,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934546368] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:49,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669416977] [2023-02-15 21:35:49,626 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 21:35:49,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:49,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:49,628 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:49,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 21:35:49,751 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 20 check-sat command(s) [2023-02-15 21:35:49,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:35:49,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 21:35:49,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:49,823 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 346 proven. 1004 refuted. 0 times theorem prover too weak. 4689 trivial. 0 not checked. [2023-02-15 21:35:49,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:51,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6039 backedges. 350 proven. 1040 refuted. 0 times theorem prover too weak. 4649 trivial. 0 not checked. [2023-02-15 21:35:51,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669416977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:51,082 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:51,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 10, 15] total 32 [2023-02-15 21:35:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553305236] [2023-02-15 21:35:51,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:51,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 21:35:51,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:51,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 21:35:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=759, Unknown=0, NotChecked=0, Total=992 [2023-02-15 21:35:51,084 INFO L87 Difference]: Start difference. First operand 84 states and 113 transitions. Second operand has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) [2023-02-15 21:35:51,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:51,499 INFO L93 Difference]: Finished difference Result 193 states and 312 transitions. [2023-02-15 21:35:51,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-15 21:35:51,499 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) Word has length 324 [2023-02-15 21:35:51,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:51,501 INFO L225 Difference]: With dead ends: 193 [2023-02-15 21:35:51,501 INFO L226 Difference]: Without dead ends: 120 [2023-02-15 21:35:51,502 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 [2023-02-15 21:35:51,502 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 [2023-02-15 21:35:51,502 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] [2023-02-15 21:35:51,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-15 21:35:51,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 105. [2023-02-15 21:35:51,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 75 states have (on average 1.04) internal successors, (78), 73 states have internal predecessors, (78), 20 states have call successors, (20), 16 states have call predecessors, (20), 9 states have return successors, (46), 15 states have call predecessors, (46), 20 states have call successors, (46) [2023-02-15 21:35:51,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 144 transitions. [2023-02-15 21:35:51,511 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 144 transitions. Word has length 324 [2023-02-15 21:35:51,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:51,511 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 144 transitions. [2023-02-15 21:35:51,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 32 states have internal predecessors, (79), 23 states have call successors, (28), 1 states have call predecessors, (28), 12 states have return successors, (41), 23 states have call predecessors, (41), 23 states have call successors, (41) [2023-02-15 21:35:51,512 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 144 transitions. [2023-02-15 21:35:51,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2023-02-15 21:35:51,518 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:51,519 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 75, 46, 46, 46, 46, 46, 46, 46, 29, 18, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:51,526 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 21:35:51,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:51,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:51,724 INFO L85 PathProgramCache]: Analyzing trace with hash 793898644, now seen corresponding path program 7 times [2023-02-15 21:35:51,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:51,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898061188] [2023-02-15 21:35:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:51,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:35:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:35:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:35:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 21:35:53,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:53,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:35:53,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:35:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-02-15 21:35:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:35:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:35:53,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:35:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:35:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:35:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 2111 proven. 4081 refuted. 0 times theorem prover too weak. 17835 trivial. 0 not checked. [2023-02-15 21:35:53,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:35:53,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898061188] [2023-02-15 21:35:53,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898061188] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:35:53,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111382229] [2023-02-15 21:35:53,619 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 21:35:53,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:35:53,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:35:53,620 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:35:53,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 21:35:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:35:53,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-15 21:35:53,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:35:53,973 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3361 refuted. 0 times theorem prover too weak. 20240 trivial. 0 not checked. [2023-02-15 21:35:53,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:35:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 24027 backedges. 426 proven. 3438 refuted. 0 times theorem prover too weak. 20163 trivial. 0 not checked. [2023-02-15 21:35:56,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111382229] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:35:56,347 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:35:56,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 12, 19] total 39 [2023-02-15 21:35:56,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348520554] [2023-02-15 21:35:56,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:35:56,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-15 21:35:56,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:35:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-15 21:35:56,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1125, Unknown=0, NotChecked=0, Total=1482 [2023-02-15 21:35:56,350 INFO L87 Difference]: Start difference. First operand 105 states and 144 transitions. Second operand has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) [2023-02-15 21:35:56,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:35:56,894 INFO L93 Difference]: Finished difference Result 236 states and 390 transitions. [2023-02-15 21:35:56,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-15 21:35:56,895 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) Word has length 637 [2023-02-15 21:35:56,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:35:56,897 INFO L225 Difference]: With dead ends: 236 [2023-02-15 21:35:56,897 INFO L226 Difference]: Without dead ends: 146 [2023-02-15 21:35:56,898 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 [2023-02-15 21:35:56,899 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 200 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 21:35:56,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 201 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 21:35:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2023-02-15 21:35:56,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 122. [2023-02-15 21:35:56,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 87 states have (on average 1.0344827586206897) internal successors, (90), 85 states have internal predecessors, (90), 24 states have call successors, (24), 19 states have call predecessors, (24), 10 states have return successors, (58), 17 states have call predecessors, (58), 24 states have call successors, (58) [2023-02-15 21:35:56,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 172 transitions. [2023-02-15 21:35:56,916 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 172 transitions. Word has length 637 [2023-02-15 21:35:56,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:35:56,917 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 172 transitions. [2023-02-15 21:35:56,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.526315789473684) internal successors, (96), 39 states have internal predecessors, (96), 30 states have call successors, (33), 1 states have call predecessors, (33), 16 states have return successors, (51), 28 states have call predecessors, (51), 30 states have call successors, (51) [2023-02-15 21:35:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 172 transitions. [2023-02-15 21:35:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2023-02-15 21:35:56,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:35:56,929 INFO L195 NwaCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:35:56,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 21:35:57,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-15 21:35:57,137 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:35:57,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:35:57,138 INFO L85 PathProgramCache]: Analyzing trace with hash 597528604, now seen corresponding path program 8 times [2023-02-15 21:35:57,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:35:57,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046435562] [2023-02-15 21:35:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:35:57,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:35:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:02,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:36:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:36:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 21:36:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:07,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:07,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:07,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2023-02-15 21:36:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:08,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:36:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 21:36:09,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:36:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046435562] [2023-02-15 21:36:09,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046435562] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:36:09,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431815428] [2023-02-15 21:36:09,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 21:36:09,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:36:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:36:09,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:36:09,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 21:36:09,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 21:36:09,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:36:09,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 1679 conjuncts, 439 conjunts are in the unsatisfiable core [2023-02-15 21:36:09,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:36:11,383 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 21:36:11,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:36:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 0 proven. 10899 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2023-02-15 21:36:15,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431815428] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:36:15,893 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:36:15,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2023-02-15 21:36:15,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120945248] [2023-02-15 21:36:15,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:36:15,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-02-15 21:36:15,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:36:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-02-15 21:36:15,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 21:36:15,895 INFO L87 Difference]: Start difference. First operand 122 states and 172 transitions. Second operand has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2023-02-15 21:36:16,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:36:16,258 INFO L93 Difference]: Finished difference Result 143 states and 220 transitions. [2023-02-15 21:36:16,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 21:36:16,259 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 746 [2023-02-15 21:36:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:36:16,261 INFO L225 Difference]: With dead ends: 143 [2023-02-15 21:36:16,262 INFO L226 Difference]: Without dead ends: 139 [2023-02-15 21:36:16,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1929 GetRequests, 1781 SyntacticMatches, 114 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=85, Invalid=1175, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 21:36:16,262 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 [2023-02-15 21:36:16,262 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] [2023-02-15 21:36:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-02-15 21:36:16,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 132. [2023-02-15 21:36:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 93 states have (on average 1.032258064516129) internal successors, (96), 91 states have internal predecessors, (96), 26 states have call successors, (26), 19 states have call predecessors, (26), 12 states have return successors, (80), 21 states have call predecessors, (80), 26 states have call successors, (80) [2023-02-15 21:36:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 202 transitions. [2023-02-15 21:36:16,284 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 202 transitions. Word has length 746 [2023-02-15 21:36:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:36:16,288 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 202 transitions. [2023-02-15 21:36:16,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 19 states have internal predecessors, (42), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2023-02-15 21:36:16,288 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 202 transitions. [2023-02-15 21:36:16,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2023-02-15 21:36:16,295 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 21:36:16,295 INFO L195 NwaCegarLoop]: trace histogram [167, 167, 135, 83, 83, 83, 83, 83, 83, 83, 52, 32, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 21:36:16,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 21:36:16,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:36:16,503 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 21:36:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 21:36:16,503 INFO L85 PathProgramCache]: Analyzing trace with hash -18297609, now seen corresponding path program 9 times [2023-02-15 21:36:16,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 21:36:16,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164638668] [2023-02-15 21:36:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 21:36:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 21:36:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:17,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 21:36:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:18,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:36:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 21:36:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-15 21:36:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:18,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:18,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 568 [2023-02-15 21:36:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-02-15 21:36:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-02-15 21:36:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-02-15 21:36:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 21:36:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 21:36:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 21:36:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-15 21:36:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-15 21:36:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 21:36:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 21:36:19,296 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 2273 proven. 8133 refuted. 0 times theorem prover too weak. 67695 trivial. 0 not checked. [2023-02-15 21:36:19,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 21:36:19,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164638668] [2023-02-15 21:36:19,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164638668] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 21:36:19,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122289312] [2023-02-15 21:36:19,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 21:36:19,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 21:36:19,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 21:36:19,298 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 21:36:19,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 21:36:19,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 36 check-sat command(s) [2023-02-15 21:36:19,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 21:36:19,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-15 21:36:19,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 21:36:19,690 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1219 proven. 7041 refuted. 0 times theorem prover too weak. 69841 trivial. 0 not checked. [2023-02-15 21:36:19,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 21:36:24,135 INFO L134 CoverageAnalysis]: Checked inductivity of 78101 backedges. 1211 proven. 7141 refuted. 0 times theorem prover too weak. 69749 trivial. 0 not checked. [2023-02-15 21:36:24,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122289312] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 21:36:24,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 21:36:24,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 14, 22] total 40 [2023-02-15 21:36:24,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431015271] [2023-02-15 21:36:24,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 21:36:24,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 21:36:24,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 21:36:24,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 21:36:24,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=359, Invalid=1201, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 21:36:24,139 INFO L87 Difference]: Start difference. First operand 132 states and 202 transitions. Second operand has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) [2023-02-15 21:36:24,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 21:36:24,676 INFO L93 Difference]: Finished difference Result 278 states and 509 transitions. [2023-02-15 21:36:24,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 21:36:24,677 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) Word has length 1141 [2023-02-15 21:36:24,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 21:36:24,680 INFO L225 Difference]: With dead ends: 278 [2023-02-15 21:36:24,680 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 21:36:24,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2653 GetRequests, 2592 SyntacticMatches, 10 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=674, Invalid=2082, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 21:36:24,684 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 118 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 1214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 21:36:24,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 300 Invalid, 1214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 21:36:24,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 21:36:24,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 21:36:24,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 21:36:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 21:36:24,685 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1141 [2023-02-15 21:36:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 21:36:24,685 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 21:36:24,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 2.5641025641025643) internal successors, (100), 40 states have internal predecessors, (100), 31 states have call successors, (35), 1 states have call predecessors, (35), 16 states have return successors, (52), 25 states have call predecessors, (52), 31 states have call successors, (52) [2023-02-15 21:36:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 21:36:24,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 21:36:24,690 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 21:36:24,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-15 21:36:24,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 21:36:24,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 21:36:25,233 INFO L899 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L895 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (= |fibonacci_#in~n| fibonacci_~n) (<= 2 fibonacci_~n)) [2023-02-15 21:36:25,234 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L895 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse0 (<= 1 |fibonacci_#t~ret4|)) (.cse2 (<= |fibonacci_#t~ret4| 1)) (.cse1 (= |fibonacci_#in~n| fibonacci_~n))) (or (and .cse0 .cse1 (<= fibonacci_~n 2) .cse2 (<= 2 fibonacci_~n)) (and .cse1 (<= 21 |fibonacci_#t~ret4|) (<= |fibonacci_#t~ret4| 21) (<= 9 |fibonacci_#in~n|)) (and (<= |fibonacci_#t~ret4| 5) .cse1 (<= fibonacci_~n 6) (<= 5 |fibonacci_#t~ret4|) (<= 6 fibonacci_~n)) (and (<= fibonacci_~n 4) (<= 2 |fibonacci_#t~ret4|) (= fibonacci_~n |fibonacci_#in~n|) (<= 4 fibonacci_~n) (<= |fibonacci_#t~ret4| 2)) (and .cse0 (<= 3 |fibonacci_#in~n|) .cse1 (<= fibonacci_~n 3) .cse2) (and .cse1 (<= |fibonacci_#t~ret4| 13) (<= 8 fibonacci_~n) (<= |fibonacci_#in~n| 8) (<= 13 |fibonacci_#t~ret4|)) (and (<= 8 |fibonacci_#t~ret4|) .cse1 (<= fibonacci_~n 7) (<= 7 fibonacci_~n) (<= |fibonacci_#t~ret4| 8)) (and .cse1 (<= 3 |fibonacci_#t~ret4|) (<= 5 fibonacci_~n) (<= fibonacci_~n 5) (<= |fibonacci_#t~ret4| 3)) (and .cse1 (<= 10 |fibonacci_#in~n|)))) [2023-02-15 21:36:25,234 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L899 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L899 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2023-02-15 21:36:25,234 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 24) the Hoare annotation is: true [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (<= 9 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9)) [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L895 garLoopResultBuilder]: At program point L27(lines 27 35) the Hoare annotation is: (<= 9 |ULTIMATE.start_main_~x~0#1|) [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2023-02-15 21:36:25,235 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 21:36:25,237 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-02-15 21:36:25,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 21:36:25,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 09:36:25 BoogieIcfgContainer [2023-02-15 21:36:25,263 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 21:36:25,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 21:36:25,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 21:36:25,264 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 21:36:25,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 09:35:40" (3/4) ... [2023-02-15 21:36:25,266 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 21:36:25,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2023-02-15 21:36:25,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-02-15 21:36:25,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 21:36:25,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 21:36:25,273 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 21:36:25,319 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 21:36:25,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 21:36:25,320 INFO L158 Benchmark]: Toolchain (without parser) took 45091.77ms. Allocated memory was 138.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 80.9MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 323.0MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,320 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 121.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 21:36:25,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 71.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.27ms. Allocated memory is still 138.4MB. Free memory was 71.0MB in the beginning and 69.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,321 INFO L158 Benchmark]: Boogie Preprocessor took 15.44ms. Allocated memory is still 138.4MB. Free memory was 69.8MB in the beginning and 68.8MB in the end (delta: 925.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 21:36:25,321 INFO L158 Benchmark]: RCFGBuilder took 187.90ms. Allocated memory is still 138.4MB. Free memory was 68.8MB in the beginning and 59.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,322 INFO L158 Benchmark]: TraceAbstraction took 44630.04ms. Allocated memory was 138.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 58.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 297.9MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,322 INFO L158 Benchmark]: Witness Printer took 56.36ms. Allocated memory is still 1.5GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 21:36:25,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory was 75.0MB in the beginning and 74.9MB in the end (delta: 121.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.68ms. Allocated memory is still 138.4MB. Free memory was 80.9MB in the beginning and 71.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.27ms. Allocated memory is still 138.4MB. Free memory was 71.0MB in the beginning and 69.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.44ms. Allocated memory is still 138.4MB. Free memory was 69.8MB in the beginning and 68.8MB in the end (delta: 925.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 187.90ms. Allocated memory is still 138.4MB. Free memory was 68.8MB in the beginning and 59.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44630.04ms. Allocated memory was 138.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 58.8MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 297.9MB. Max. memory is 16.1GB. * Witness Printer took 56.36ms. Allocated memory is still 1.5GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.6s, OverallIterations: 12, TraceHistogramMax: 167, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, 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, 1371 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4323 IncrementalHoareTripleChecker+Invalid, 5694 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1371 mSolverCounterUnsat, 300 mSDtfsCounter, 4323 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8135 GetRequests, 7616 SyntacticMatches, 168 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: 0.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 62 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 329 PreInvPairs, 481 NumberOfFragments, 151 HoareAnnotationTreeSize, 329 FomulaSimplifications, 2976 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3376 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 37.0s InterpolantComputationTime, 6711 NumberOfCodeBlocks, 5628 NumberOfCodeBlocksAsserted, 105 NumberOfCheckSat, 10024 ConstructedInterpolants, 0 QuantifiedInterpolants, 20961 SizeOfPredicates, 48 NumberOfNonLiveVariables, 5187 ConjunctsInSsa, 552 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 362816/435111 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 9 <= x RESULT: Ultimate proved your program to be correct! [2023-02-15 21:36:25,361 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