./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/recHanoi01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/recHanoi01.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 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 19:35:49,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 19:35:49,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 19:35:49,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 19:35:49,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 19:35:49,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 19:35:49,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 19:35:49,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 19:35:49,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 19:35:49,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 19:35:49,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 19:35:49,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 19:35:49,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 19:35:49,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 19:35:49,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 19:35:49,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 19:35:49,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 19:35:49,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 19:35:49,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 19:35:49,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 19:35:49,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 19:35:49,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 19:35:49,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 19:35:49,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 19:35:49,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 19:35:49,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 19:35:49,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 19:35:49,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 19:35:49,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 19:35:49,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 19:35:49,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 19:35:49,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 19:35:49,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 19:35:49,707 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 19:35:49,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 19:35:49,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 19:35:49,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 19:35:49,709 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 19:35:49,709 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 19:35:49,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 19:35:49,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 19:35:49,713 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 19:35:49,741 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 19:35:49,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 19:35:49,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 19:35:49,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 19:35:49,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 19:35:49,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 19:35:49,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 19:35:49,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 19:35:49,744 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 19:35:49,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 19:35:49,745 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 19:35:49,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 19:35:49,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 19:35:49,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 19:35:49,746 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 19:35:49,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 19:35:49,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 19:35:49,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 19:35:49,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 19:35:49,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:35:49,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 19:35:49,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 19:35:49,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 19:35:49,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 19:35:49,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 19:35:49,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 19:35:49,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 19:35:49,749 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 19:35:49,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 19:35:49,749 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 19:35:49,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 [2023-02-18 19:35:49,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 19:35:49,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 19:35:49,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 19:35:49,962 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 19:35:49,963 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 19:35:49,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi01.c [2023-02-18 19:35:51,114 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 19:35:51,286 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 19:35:51,287 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi01.c [2023-02-18 19:35:51,291 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3829376b8/fc53c4b39fbe4f6a9608b2a6bbcbaae8/FLAG2323fc793 [2023-02-18 19:35:51,302 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3829376b8/fc53c4b39fbe4f6a9608b2a6bbcbaae8 [2023-02-18 19:35:51,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 19:35:51,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 19:35:51,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 19:35:51,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 19:35:51,309 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 19:35:51,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bbff26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51, skipping insertion in model container [2023-02-18 19:35:51,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 19:35:51,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 19:35:51,449 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/recHanoi01.c[1213,1226] [2023-02-18 19:35:51,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:35:51,464 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 19:35:51,475 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/recHanoi01.c[1213,1226] [2023-02-18 19:35:51,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:35:51,485 INFO L208 MainTranslator]: Completed translation [2023-02-18 19:35:51,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51 WrapperNode [2023-02-18 19:35:51,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 19:35:51,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 19:35:51,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 19:35:51,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 19:35:51,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,512 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-02-18 19:35:51,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 19:35:51,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 19:35:51,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 19:35:51,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 19:35:51,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 19:35:51,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 19:35:51,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 19:35:51,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 19:35:51,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (1/1) ... [2023-02-18 19:35:51,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:35:51,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:51,563 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) [2023-02-18 19:35:51,580 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 [2023-02-18 19:35:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 19:35:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2023-02-18 19:35:51,604 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2023-02-18 19:35:51,604 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-18 19:35:51,605 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-18 19:35:51,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 19:35:51,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 19:35:51,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 19:35:51,663 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 19:35:51,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 19:35:51,813 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 19:35:51,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 19:35:51,823 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-18 19:35:51,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:35:51 BoogieIcfgContainer [2023-02-18 19:35:51,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 19:35:51,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 19:35:51,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 19:35:51,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 19:35:51,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:35:51" (1/3) ... [2023-02-18 19:35:51,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a7ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:35:51, skipping insertion in model container [2023-02-18 19:35:51,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:35:51" (2/3) ... [2023-02-18 19:35:51,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@595a7ba1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:35:51, skipping insertion in model container [2023-02-18 19:35:51,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:35:51" (3/3) ... [2023-02-18 19:35:51,833 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2023-02-18 19:35:51,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 19:35:51,848 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 19:35:51,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 19:35:51,917 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;@746cb312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 19:35:51,917 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 19:35:51,922 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-18 19:35:51,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 19:35:51,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:51,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:51,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:51,949 INFO L85 PathProgramCache]: Analyzing trace with hash -424312916, now seen corresponding path program 1 times [2023-02-18 19:35:51,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:51,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150870711] [2023-02-18 19:35:51,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:51,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:52,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 19:35:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 19:35:52,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:52,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150870711] [2023-02-18 19:35:52,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150870711] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 19:35:52,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 19:35:52,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 19:35:52,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400491287] [2023-02-18 19:35:52,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 19:35:52,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 19:35:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:52,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 19:35:52,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-18 19:35:52,281 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 19:35:52,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:52,437 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2023-02-18 19:35:52,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 19:35:52,440 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-02-18 19:35:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:52,448 INFO L225 Difference]: With dead ends: 43 [2023-02-18 19:35:52,448 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 19:35:52,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-18 19:35:52,457 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 19 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:52,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 58 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 19:35:52,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 19:35:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-18 19:35:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-18 19:35:52,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-02-18 19:35:52,493 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2023-02-18 19:35:52,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:52,494 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-02-18 19:35:52,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 19:35:52,494 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-02-18 19:35:52,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 19:35:52,496 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:52,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:52,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 19:35:52,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:52,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2103389423, now seen corresponding path program 1 times [2023-02-18 19:35:52,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:52,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821532821] [2023-02-18 19:35:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:52,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 19:35:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 19:35:52,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:52,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821532821] [2023-02-18 19:35:52,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821532821] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:52,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662060858] [2023-02-18 19:35:52,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:52,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:52,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:52,961 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) [2023-02-18 19:35:52,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 19:35:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:53,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-18 19:35:53,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-18 19:35:53,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 19:35:53,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662060858] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:53,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:53,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2023-02-18 19:35:53,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809880398] [2023-02-18 19:35:53,297 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:53,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 19:35:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 19:35:53,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-02-18 19:35:53,303 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-02-18 19:35:53,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:53,644 INFO L93 Difference]: Finished difference Result 74 states and 104 transitions. [2023-02-18 19:35:53,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-18 19:35:53,644 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 26 [2023-02-18 19:35:53,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:53,650 INFO L225 Difference]: With dead ends: 74 [2023-02-18 19:35:53,650 INFO L226 Difference]: Without dead ends: 68 [2023-02-18 19:35:53,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 43 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-02-18 19:35:53,652 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 68 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:53,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 99 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:35:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-02-18 19:35:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2023-02-18 19:35:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 34 states have internal predecessors, (36), 14 states have call successors, (14), 6 states have call predecessors, (14), 11 states have return successors, (33), 16 states have call predecessors, (33), 14 states have call successors, (33) [2023-02-18 19:35:53,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2023-02-18 19:35:53,687 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 26 [2023-02-18 19:35:53,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:53,687 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2023-02-18 19:35:53,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 1.8125) internal successors, (29), 15 states have internal predecessors, (29), 4 states have call successors, (10), 5 states have call predecessors, (10), 7 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-02-18 19:35:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2023-02-18 19:35:53,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-18 19:35:53,689 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:53,690 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:53,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 19:35:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:53,895 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash 365687158, now seen corresponding path program 2 times [2023-02-18 19:35:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:53,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737569939] [2023-02-18 19:35:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:53,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:53,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:54,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-18 19:35:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,081 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-18 19:35:54,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:54,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737569939] [2023-02-18 19:35:54,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737569939] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:54,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716163485] [2023-02-18 19:35:54,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 19:35:54,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:54,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:54,084 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) [2023-02-18 19:35:54,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 19:35:54,135 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 19:35:54,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:35:54,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 19:35:54,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-18 19:35:54,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-18 19:35:54,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716163485] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:54,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:54,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2023-02-18 19:35:54,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452576475] [2023-02-18 19:35:54,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:54,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-18 19:35:54,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:54,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-18 19:35:54,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-02-18 19:35:54,338 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand has 18 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 10 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (15), 8 states have call predecessors, (15), 10 states have call successors, (15) [2023-02-18 19:35:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:54,554 INFO L93 Difference]: Finished difference Result 108 states and 169 transitions. [2023-02-18 19:35:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-18 19:35:54,555 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 10 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (15), 8 states have call predecessors, (15), 10 states have call successors, (15) Word has length 36 [2023-02-18 19:35:54,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:54,556 INFO L225 Difference]: With dead ends: 108 [2023-02-18 19:35:54,556 INFO L226 Difference]: Without dead ends: 74 [2023-02-18 19:35:54,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 66 SyntacticMatches, 11 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2023-02-18 19:35:54,558 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 32 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:54,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 117 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 19:35:54,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-18 19:35:54,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 55. [2023-02-18 19:35:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 33 states have internal predecessors, (38), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (20), 12 states have call predecessors, (20), 11 states have call successors, (20) [2023-02-18 19:35:54,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2023-02-18 19:35:54,569 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 36 [2023-02-18 19:35:54,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:54,569 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2023-02-18 19:35:54,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 2.4) internal successors, (36), 14 states have internal predecessors, (36), 10 states have call successors, (14), 2 states have call predecessors, (14), 7 states have return successors, (15), 8 states have call predecessors, (15), 10 states have call successors, (15) [2023-02-18 19:35:54,570 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-02-18 19:35:54,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-18 19:35:54,571 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:54,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:54,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 19:35:54,779 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,SelfDestructingSolverStorable2 [2023-02-18 19:35:54,780 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:54,780 INFO L85 PathProgramCache]: Analyzing trace with hash -787037173, now seen corresponding path program 1 times [2023-02-18 19:35:54,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:54,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676295377] [2023-02-18 19:35:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:54,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 19:35:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,941 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 19:35:54,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:54,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676295377] [2023-02-18 19:35:54,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676295377] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:54,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078093282] [2023-02-18 19:35:54,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:54,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:54,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:54,944 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) [2023-02-18 19:35:54,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 19:35:54,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:54,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 19:35:55,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:55,044 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-18 19:35:55,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 19:35:55,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078093282] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:55,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:55,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 19 [2023-02-18 19:35:55,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69090788] [2023-02-18 19:35:55,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:55,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-18 19:35:55,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:55,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-18 19:35:55,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-02-18 19:35:55,140 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand has 19 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 10 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (10), 5 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 19:35:55,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:55,272 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2023-02-18 19:35:55,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 19:35:55,273 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 10 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (10), 5 states have call predecessors, (10), 10 states have call successors, (10) Word has length 32 [2023-02-18 19:35:55,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:55,274 INFO L225 Difference]: With dead ends: 62 [2023-02-18 19:35:55,274 INFO L226 Difference]: Without dead ends: 50 [2023-02-18 19:35:55,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 13 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2023-02-18 19:35:55,276 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:55,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 64 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 19:35:55,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-18 19:35:55,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2023-02-18 19:35:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 30 states have (on average 1.1) internal successors, (33), 29 states have internal predecessors, (33), 10 states have call successors, (10), 8 states have call predecessors, (10), 7 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-02-18 19:35:55,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2023-02-18 19:35:55,283 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 32 [2023-02-18 19:35:55,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:55,284 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2023-02-18 19:35:55,284 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 2.176470588235294) internal successors, (37), 16 states have internal predecessors, (37), 10 states have call successors, (11), 2 states have call predecessors, (11), 7 states have return successors, (10), 5 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 19:35:55,284 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-02-18 19:35:55,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 19:35:55,286 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:55,286 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:55,293 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-18 19:35:55,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:55,491 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:55,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:55,491 INFO L85 PathProgramCache]: Analyzing trace with hash 464974891, now seen corresponding path program 2 times [2023-02-18 19:35:55,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:55,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340849605] [2023-02-18 19:35:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:55,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:55,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:55,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:35:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:55,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-02-18 19:35:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:56,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:56,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:56,050 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-02-18 19:35:56,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:56,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340849605] [2023-02-18 19:35:56,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340849605] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:56,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243529341] [2023-02-18 19:35:56,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 19:35:56,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:56,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:56,053 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) [2023-02-18 19:35:56,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 19:35:56,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 19:35:56,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:35:56,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 19:35:56,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-02-18 19:35:56,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-02-18 19:35:56,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243529341] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:56,542 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:56,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 18] total 31 [2023-02-18 19:35:56,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913718337] [2023-02-18 19:35:56,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:56,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-02-18 19:35:56,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:56,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-02-18 19:35:56,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2023-02-18 19:35:56,545 INFO L87 Difference]: Start difference. First operand 48 states and 60 transitions. Second operand has 31 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 24 states have internal predecessors, (46), 9 states have call successors, (17), 7 states have call predecessors, (17), 14 states have return successors, (20), 13 states have call predecessors, (20), 9 states have call successors, (20) [2023-02-18 19:35:57,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:57,503 INFO L93 Difference]: Finished difference Result 101 states and 139 transitions. [2023-02-18 19:35:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-18 19:35:57,504 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 24 states have internal predecessors, (46), 9 states have call successors, (17), 7 states have call predecessors, (17), 14 states have return successors, (20), 13 states have call predecessors, (20), 9 states have call successors, (20) Word has length 52 [2023-02-18 19:35:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:57,505 INFO L225 Difference]: With dead ends: 101 [2023-02-18 19:35:57,505 INFO L226 Difference]: Without dead ends: 97 [2023-02-18 19:35:57,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 89 SyntacticMatches, 21 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 790 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=401, Invalid=2461, Unknown=0, NotChecked=0, Total=2862 [2023-02-18 19:35:57,507 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 105 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:57,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 165 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 19:35:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-18 19:35:57,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 80. [2023-02-18 19:35:57,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 45 states have (on average 1.0888888888888888) internal successors, (49), 45 states have internal predecessors, (49), 18 states have call successors, (18), 10 states have call predecessors, (18), 16 states have return successors, (44), 24 states have call predecessors, (44), 18 states have call successors, (44) [2023-02-18 19:35:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 111 transitions. [2023-02-18 19:35:57,524 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 111 transitions. Word has length 52 [2023-02-18 19:35:57,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:57,524 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 111 transitions. [2023-02-18 19:35:57,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 27 states have (on average 1.7037037037037037) internal successors, (46), 24 states have internal predecessors, (46), 9 states have call successors, (17), 7 states have call predecessors, (17), 14 states have return successors, (20), 13 states have call predecessors, (20), 9 states have call successors, (20) [2023-02-18 19:35:57,525 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2023-02-18 19:35:57,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-18 19:35:57,526 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:57,527 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:57,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 19:35:57,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:57,732 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:57,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:57,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1359329167, now seen corresponding path program 3 times [2023-02-18 19:35:57,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:57,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875238587] [2023-02-18 19:35:57,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:57,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:57,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:35:57,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-02-18 19:35:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:57,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-18 19:35:57,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:57,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875238587] [2023-02-18 19:35:57,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875238587] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:57,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163175310] [2023-02-18 19:35:57,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 19:35:57,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:57,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:57,956 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) [2023-02-18 19:35:57,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 19:35:58,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-18 19:35:58,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:35:58,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-18 19:35:58,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-02-18 19:35:58,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:58,304 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-02-18 19:35:58,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163175310] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:58,305 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:58,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2023-02-18 19:35:58,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146787412] [2023-02-18 19:35:58,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:58,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 19:35:58,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:58,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 19:35:58,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2023-02-18 19:35:58,308 INFO L87 Difference]: Start difference. First operand 80 states and 111 transitions. Second operand has 24 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 12 states have call predecessors, (21), 12 states have call successors, (21) [2023-02-18 19:35:58,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:58,593 INFO L93 Difference]: Finished difference Result 142 states and 220 transitions. [2023-02-18 19:35:58,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-18 19:35:58,594 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 12 states have call predecessors, (21), 12 states have call successors, (21) Word has length 58 [2023-02-18 19:35:58,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:58,595 INFO L225 Difference]: With dead ends: 142 [2023-02-18 19:35:58,596 INFO L226 Difference]: Without dead ends: 76 [2023-02-18 19:35:58,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 104 SyntacticMatches, 19 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 19:35:58,598 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:58,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 123 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:35:58,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-18 19:35:58,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2023-02-18 19:35:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 17 states have call successors, (17), 8 states have call predecessors, (17), 12 states have return successors, (35), 21 states have call predecessors, (35), 17 states have call successors, (35) [2023-02-18 19:35:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-02-18 19:35:58,610 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 58 [2023-02-18 19:35:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:58,610 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-02-18 19:35:58,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.142857142857143) internal successors, (45), 20 states have internal predecessors, (45), 12 states have call successors, (20), 2 states have call predecessors, (20), 9 states have return successors, (21), 12 states have call predecessors, (21), 12 states have call successors, (21) [2023-02-18 19:35:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-02-18 19:35:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-02-18 19:35:58,613 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:58,613 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:58,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 19:35:58,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:58,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:35:58,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:35:58,820 INFO L85 PathProgramCache]: Analyzing trace with hash 296645163, now seen corresponding path program 4 times [2023-02-18 19:35:58,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:35:58,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871076995] [2023-02-18 19:35:58,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:35:58,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:35:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:35:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:35:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:35:59,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:35:59,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:35:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-18 19:35:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:35:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:35:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 131 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-02-18 19:35:59,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:35:59,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871076995] [2023-02-18 19:35:59,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871076995] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:35:59,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498687414] [2023-02-18 19:35:59,193 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 19:35:59,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:35:59,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:35:59,197 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) [2023-02-18 19:35:59,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 19:35:59,287 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 19:35:59,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:35:59,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-18 19:35:59,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:35:59,352 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 125 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-02-18 19:35:59,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:35:59,503 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 135 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-02-18 19:35:59,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498687414] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:35:59,504 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:35:59,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 15] total 25 [2023-02-18 19:35:59,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344306406] [2023-02-18 19:35:59,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:35:59,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 19:35:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:35:59,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 19:35:59,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2023-02-18 19:35:59,508 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 25 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 16 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (22), 10 states have call predecessors, (22), 16 states have call successors, (22) [2023-02-18 19:35:59,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:35:59,778 INFO L93 Difference]: Finished difference Result 117 states and 174 transitions. [2023-02-18 19:35:59,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-18 19:35:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 16 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (22), 10 states have call predecessors, (22), 16 states have call successors, (22) Word has length 92 [2023-02-18 19:35:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:35:59,780 INFO L225 Difference]: With dead ends: 117 [2023-02-18 19:35:59,780 INFO L226 Difference]: Without dead ends: 71 [2023-02-18 19:35:59,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 186 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=240, Invalid=1020, Unknown=0, NotChecked=0, Total=1260 [2023-02-18 19:35:59,782 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 41 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:35:59,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 112 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:35:59,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-18 19:35:59,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2023-02-18 19:35:59,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 37 states have (on average 1.054054054054054) internal successors, (39), 37 states have internal predecessors, (39), 17 states have call successors, (17), 9 states have call predecessors, (17), 11 states have return successors, (32), 19 states have call predecessors, (32), 17 states have call successors, (32) [2023-02-18 19:35:59,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2023-02-18 19:35:59,800 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 92 [2023-02-18 19:35:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:35:59,805 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2023-02-18 19:35:59,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 16 states have call successors, (21), 2 states have call predecessors, (21), 9 states have return successors, (22), 10 states have call predecessors, (22), 16 states have call successors, (22) [2023-02-18 19:35:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2023-02-18 19:35:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-02-18 19:35:59,809 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:35:59,809 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:35:59,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:00,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:00,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:00,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1624983153, now seen corresponding path program 5 times [2023-02-18 19:36:00,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:00,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994408840] [2023-02-18 19:36:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:00,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:00,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-18 19:36:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:00,992 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 20 proven. 161 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-02-18 19:36:00,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:00,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994408840] [2023-02-18 19:36:00,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994408840] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:00,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1260198393] [2023-02-18 19:36:00,993 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 19:36:00,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:00,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:00,997 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) [2023-02-18 19:36:01,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 19:36:01,111 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-02-18 19:36:01,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:01,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 91 conjunts are in the unsatisfiable core [2023-02-18 19:36:01,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2023-02-18 19:36:01,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-18 19:36:02,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1260198393] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:02,493 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:02,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 32] total 51 [2023-02-18 19:36:02,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448953410] [2023-02-18 19:36:02,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:02,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-02-18 19:36:02,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:02,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-02-18 19:36:02,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=2365, Unknown=0, NotChecked=0, Total=2550 [2023-02-18 19:36:02,497 INFO L87 Difference]: Start difference. First operand 66 states and 88 transitions. Second operand has 51 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 38 states have internal predecessors, (69), 16 states have call successors, (26), 11 states have call predecessors, (26), 24 states have return successors, (33), 24 states have call predecessors, (33), 16 states have call successors, (33) [2023-02-18 19:36:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:06,842 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2023-02-18 19:36:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-02-18 19:36:06,843 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 38 states have internal predecessors, (69), 16 states have call successors, (26), 11 states have call predecessors, (26), 24 states have return successors, (33), 24 states have call predecessors, (33), 16 states have call successors, (33) Word has length 98 [2023-02-18 19:36:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:06,845 INFO L225 Difference]: With dead ends: 222 [2023-02-18 19:36:06,845 INFO L226 Difference]: Without dead ends: 218 [2023-02-18 19:36:06,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 171 SyntacticMatches, 43 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3590 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1686, Invalid=11196, Unknown=0, NotChecked=0, Total=12882 [2023-02-18 19:36:06,849 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 343 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 4187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:06,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 576 Invalid, 4187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [966 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-02-18 19:36:06,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-02-18 19:36:06,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 179. [2023-02-18 19:36:06,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 97 states have internal predecessors, (105), 47 states have call successors, (47), 27 states have call predecessors, (47), 33 states have return successors, (104), 54 states have call predecessors, (104), 47 states have call successors, (104) [2023-02-18 19:36:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 256 transitions. [2023-02-18 19:36:06,885 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 256 transitions. Word has length 98 [2023-02-18 19:36:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:06,885 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 256 transitions. [2023-02-18 19:36:06,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 42 states have (on average 1.6428571428571428) internal successors, (69), 38 states have internal predecessors, (69), 16 states have call successors, (26), 11 states have call predecessors, (26), 24 states have return successors, (33), 24 states have call predecessors, (33), 16 states have call successors, (33) [2023-02-18 19:36:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 256 transitions. [2023-02-18 19:36:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-02-18 19:36:06,888 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:06,888 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 8, 7, 7, 7, 7, 7, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:06,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:07,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:07,094 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:07,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1480250389, now seen corresponding path program 6 times [2023-02-18 19:36:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:07,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079821748] [2023-02-18 19:36:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-18 19:36:07,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 144 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-02-18 19:36:07,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:07,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079821748] [2023-02-18 19:36:07,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079821748] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:07,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111715765] [2023-02-18 19:36:07,452 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 19:36:07,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:07,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:07,467 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) [2023-02-18 19:36:07,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 19:36:07,558 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2023-02-18 19:36:07,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:07,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 19:36:07,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 113 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2023-02-18 19:36:07,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 132 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-02-18 19:36:07,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111715765] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:07,862 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:07,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 19] total 29 [2023-02-18 19:36:07,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828798378] [2023-02-18 19:36:07,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:07,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-18 19:36:07,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-18 19:36:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2023-02-18 19:36:07,864 INFO L87 Difference]: Start difference. First operand 179 states and 256 transitions. Second operand has 29 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 16 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (29), 15 states have call predecessors, (29), 16 states have call successors, (29) [2023-02-18 19:36:08,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:08,252 INFO L93 Difference]: Finished difference Result 291 states and 470 transitions. [2023-02-18 19:36:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 19:36:08,253 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 16 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (29), 15 states have call predecessors, (29), 16 states have call successors, (29) Word has length 104 [2023-02-18 19:36:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:08,255 INFO L225 Difference]: With dead ends: 291 [2023-02-18 19:36:08,255 INFO L226 Difference]: Without dead ends: 181 [2023-02-18 19:36:08,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 206 SyntacticMatches, 25 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=1465, Unknown=0, NotChecked=0, Total=1806 [2023-02-18 19:36:08,257 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 46 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:08,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 164 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:36:08,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-18 19:36:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 157. [2023-02-18 19:36:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 82 states have (on average 1.0609756097560976) internal successors, (87), 82 states have internal predecessors, (87), 45 states have call successors, (45), 22 states have call predecessors, (45), 29 states have return successors, (88), 52 states have call predecessors, (88), 45 states have call successors, (88) [2023-02-18 19:36:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2023-02-18 19:36:08,286 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 104 [2023-02-18 19:36:08,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:08,286 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2023-02-18 19:36:08,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 2.08) internal successors, (52), 24 states have internal predecessors, (52), 16 states have call successors, (24), 2 states have call predecessors, (24), 11 states have return successors, (29), 15 states have call predecessors, (29), 16 states have call successors, (29) [2023-02-18 19:36:08,287 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2023-02-18 19:36:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-02-18 19:36:08,288 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:08,288 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 12, 11, 11, 11, 11, 11, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:08,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:08,500 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,SelfDestructingSolverStorable8 [2023-02-18 19:36:08,500 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:08,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:08,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1313628785, now seen corresponding path program 7 times [2023-02-18 19:36:08,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:08,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243966113] [2023-02-18 19:36:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:08,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-02-18 19:36:09,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:09,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 227 proven. 254 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2023-02-18 19:36:09,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:09,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243966113] [2023-02-18 19:36:09,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243966113] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:09,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257310283] [2023-02-18 19:36:09,059 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 19:36:09,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:09,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:09,061 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) [2023-02-18 19:36:09,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 19:36:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:09,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-18 19:36:09,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:09,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 233 proven. 268 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-02-18 19:36:09,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 233 proven. 281 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-02-18 19:36:09,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257310283] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:09,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:09,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 17] total 27 [2023-02-18 19:36:09,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077785524] [2023-02-18 19:36:09,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:09,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-18 19:36:09,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:09,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-18 19:36:09,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2023-02-18 19:36:09,485 INFO L87 Difference]: Start difference. First operand 157 states and 220 transitions. Second operand has 27 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 21 states have call successors, (30), 3 states have call predecessors, (30), 10 states have return successors, (34), 13 states have call predecessors, (34), 21 states have call successors, (34) [2023-02-18 19:36:09,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:09,783 INFO L93 Difference]: Finished difference Result 248 states and 371 transitions. [2023-02-18 19:36:09,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-18 19:36:09,784 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 21 states have call successors, (30), 3 states have call predecessors, (30), 10 states have return successors, (34), 13 states have call predecessors, (34), 21 states have call successors, (34) Word has length 138 [2023-02-18 19:36:09,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:09,786 INFO L225 Difference]: With dead ends: 248 [2023-02-18 19:36:09,786 INFO L226 Difference]: Without dead ends: 178 [2023-02-18 19:36:09,787 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 295 SyntacticMatches, 22 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2023-02-18 19:36:09,788 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:09,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 140 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:36:09,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-02-18 19:36:09,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2023-02-18 19:36:09,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 81 states have (on average 1.0617283950617284) internal successors, (86), 81 states have internal predecessors, (86), 45 states have call successors, (45), 23 states have call predecessors, (45), 27 states have return successors, (80), 49 states have call predecessors, (80), 45 states have call successors, (80) [2023-02-18 19:36:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2023-02-18 19:36:09,814 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 211 transitions. Word has length 138 [2023-02-18 19:36:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:09,815 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 211 transitions. [2023-02-18 19:36:09,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 2.5238095238095237) internal successors, (53), 20 states have internal predecessors, (53), 21 states have call successors, (30), 3 states have call predecessors, (30), 10 states have return successors, (34), 13 states have call predecessors, (34), 21 states have call successors, (34) [2023-02-18 19:36:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 211 transitions. [2023-02-18 19:36:09,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-02-18 19:36:09,817 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:09,817 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:09,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:10,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-02-18 19:36:10,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:10,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:10,023 INFO L85 PathProgramCache]: Analyzing trace with hash 149752433, now seen corresponding path program 8 times [2023-02-18 19:36:10,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:10,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265428213] [2023-02-18 19:36:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:10,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-18 19:36:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:10,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 404 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2023-02-18 19:36:10,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265428213] [2023-02-18 19:36:10,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265428213] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:10,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612620599] [2023-02-18 19:36:10,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 19:36:10,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:10,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:10,533 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) [2023-02-18 19:36:10,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 19:36:10,706 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 19:36:10,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:10,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 19:36:10,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:10,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2023-02-18 19:36:10,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:11,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2023-02-18 19:36:11,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612620599] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:11,013 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:11,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 19] total 30 [2023-02-18 19:36:11,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951332049] [2023-02-18 19:36:11,014 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:11,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-18 19:36:11,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:11,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-18 19:36:11,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2023-02-18 19:36:11,016 INFO L87 Difference]: Start difference. First operand 154 states and 211 transitions. Second operand has 30 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 20 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (30), 13 states have call predecessors, (30), 20 states have call successors, (30) [2023-02-18 19:36:11,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:11,405 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2023-02-18 19:36:11,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-18 19:36:11,405 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 20 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (30), 13 states have call predecessors, (30), 20 states have call successors, (30) Word has length 178 [2023-02-18 19:36:11,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:11,407 INFO L225 Difference]: With dead ends: 174 [2023-02-18 19:36:11,408 INFO L226 Difference]: Without dead ends: 170 [2023-02-18 19:36:11,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 385 SyntacticMatches, 24 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=349, Invalid=1543, Unknown=0, NotChecked=0, Total=1892 [2023-02-18 19:36:11,409 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 52 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:11,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 146 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:36:11,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-02-18 19:36:11,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2023-02-18 19:36:11,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 83 states have (on average 1.0602409638554218) internal successors, (88), 83 states have internal predecessors, (88), 45 states have call successors, (45), 23 states have call predecessors, (45), 28 states have return successors, (81), 50 states have call predecessors, (81), 45 states have call successors, (81) [2023-02-18 19:36:11,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions. [2023-02-18 19:36:11,436 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 178 [2023-02-18 19:36:11,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:11,437 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions. [2023-02-18 19:36:11,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 25 states have (on average 2.04) internal successors, (51), 24 states have internal predecessors, (51), 20 states have call successors, (25), 2 states have call predecessors, (25), 11 states have return successors, (30), 13 states have call predecessors, (30), 20 states have call successors, (30) [2023-02-18 19:36:11,437 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions. [2023-02-18 19:36:11,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-02-18 19:36:11,440 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:11,440 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:11,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:11,649 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,SelfDestructingSolverStorable10 [2023-02-18 19:36:11,649 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash -2072776725, now seen corresponding path program 9 times [2023-02-18 19:36:11,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:11,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859547852] [2023-02-18 19:36:11,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:11,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:12,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-18 19:36:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:14,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:14,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:14,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 44 proven. 705 refuted. 0 times theorem prover too weak. 1351 trivial. 0 not checked. [2023-02-18 19:36:14,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:14,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859547852] [2023-02-18 19:36:14,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859547852] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:14,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772846536] [2023-02-18 19:36:14,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 19:36:14,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:14,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:14,115 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:36:14,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 19:36:14,330 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-02-18 19:36:14,330 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:14,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 175 conjunts are in the unsatisfiable core [2023-02-18 19:36:14,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:14,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2023-02-18 19:36:14,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 19:36:17,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772846536] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:17,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:17,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 58] total 83 [2023-02-18 19:36:17,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100006405] [2023-02-18 19:36:17,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:17,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-02-18 19:36:17,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:17,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-02-18 19:36:17,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=6505, Unknown=0, NotChecked=0, Total=6806 [2023-02-18 19:36:17,935 INFO L87 Difference]: Start difference. First operand 157 states and 214 transitions. Second operand has 83 states, 65 states have (on average 1.6615384615384616) internal successors, (108), 62 states have internal predecessors, (108), 29 states have call successors, (43), 19 states have call predecessors, (43), 40 states have return successors, (54), 41 states have call predecessors, (54), 29 states have call successors, (54) [2023-02-18 19:36:40,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:40,764 INFO L93 Difference]: Finished difference Result 524 states and 792 transitions. [2023-02-18 19:36:40,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2023-02-18 19:36:40,764 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 65 states have (on average 1.6615384615384616) internal successors, (108), 62 states have internal predecessors, (108), 29 states have call successors, (43), 19 states have call predecessors, (43), 40 states have return successors, (54), 41 states have call predecessors, (54), 29 states have call successors, (54) Word has length 184 [2023-02-18 19:36:40,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:40,769 INFO L225 Difference]: With dead ends: 524 [2023-02-18 19:36:40,769 INFO L226 Difference]: Without dead ends: 520 [2023-02-18 19:36:40,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 330 SyntacticMatches, 84 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17125 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=7719, Invalid=49641, Unknown=0, NotChecked=0, Total=57360 [2023-02-18 19:36:40,784 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 1415 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 9975 mSolverCounterSat, 4770 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 14745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4770 IncrementalHoareTripleChecker+Valid, 9975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:40,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1421 Valid, 1204 Invalid, 14745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4770 Valid, 9975 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-02-18 19:36:40,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-02-18 19:36:40,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 437. [2023-02-18 19:36:40,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 236 states have (on average 1.0593220338983051) internal successors, (250), 232 states have internal predecessors, (250), 125 states have call successors, (125), 74 states have call predecessors, (125), 75 states have return successors, (256), 130 states have call predecessors, (256), 125 states have call successors, (256) [2023-02-18 19:36:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 631 transitions. [2023-02-18 19:36:40,942 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 631 transitions. Word has length 184 [2023-02-18 19:36:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:40,943 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 631 transitions. [2023-02-18 19:36:40,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 65 states have (on average 1.6615384615384616) internal successors, (108), 62 states have internal predecessors, (108), 29 states have call successors, (43), 19 states have call predecessors, (43), 40 states have return successors, (54), 41 states have call predecessors, (54), 29 states have call successors, (54) [2023-02-18 19:36:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 631 transitions. [2023-02-18 19:36:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-02-18 19:36:40,948 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:40,948 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 16, 15, 15, 15, 15, 15, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:40,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:41,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-18 19:36:41,155 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:41,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1729878095, now seen corresponding path program 10 times [2023-02-18 19:36:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146443464] [2023-02-18 19:36:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:41,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-18 19:36:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:41,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 423 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-02-18 19:36:41,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:41,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146443464] [2023-02-18 19:36:41,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146443464] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:41,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316365508] [2023-02-18 19:36:41,737 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 19:36:41,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:41,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:41,739 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:36:41,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 19:36:41,928 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 19:36:41,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:41,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-18 19:36:41,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:42,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-02-18 19:36:42,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-02-18 19:36:42,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316365508] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:42,351 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:42,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 23] total 34 [2023-02-18 19:36:42,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33450333] [2023-02-18 19:36:42,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:42,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-18 19:36:42,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:42,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-18 19:36:42,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122 [2023-02-18 19:36:42,353 INFO L87 Difference]: Start difference. First operand 437 states and 631 transitions. Second operand has 34 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 28 states have internal predecessors, (59), 22 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (36), 15 states have call predecessors, (36), 22 states have call successors, (36) [2023-02-18 19:36:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:42,850 INFO L93 Difference]: Finished difference Result 683 states and 1088 transitions. [2023-02-18 19:36:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-18 19:36:42,851 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 28 states have internal predecessors, (59), 22 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (36), 15 states have call predecessors, (36), 22 states have call successors, (36) Word has length 190 [2023-02-18 19:36:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:42,861 INFO L225 Difference]: With dead ends: 683 [2023-02-18 19:36:42,861 INFO L226 Difference]: Without dead ends: 467 [2023-02-18 19:36:42,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 404 SyntacticMatches, 31 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 925 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=472, Invalid=2078, Unknown=0, NotChecked=0, Total=2550 [2023-02-18 19:36:42,869 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 60 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:42,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 116 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 19:36:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-02-18 19:36:43,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 394. [2023-02-18 19:36:43,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 201 states have (on average 1.0597014925373134) internal successors, (213), 201 states have internal predecessors, (213), 119 states have call successors, (119), 59 states have call predecessors, (119), 73 states have return successors, (219), 133 states have call predecessors, (219), 119 states have call successors, (219) [2023-02-18 19:36:43,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 551 transitions. [2023-02-18 19:36:43,006 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 551 transitions. Word has length 190 [2023-02-18 19:36:43,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:43,007 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 551 transitions. [2023-02-18 19:36:43,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 29 states have (on average 2.0344827586206895) internal successors, (59), 28 states have internal predecessors, (59), 22 states have call successors, (27), 2 states have call predecessors, (27), 13 states have return successors, (36), 15 states have call predecessors, (36), 22 states have call successors, (36) [2023-02-18 19:36:43,008 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 551 transitions. [2023-02-18 19:36:43,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-02-18 19:36:43,014 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:43,014 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:43,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:43,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 19:36:43,221 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:43,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:43,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1351583765, now seen corresponding path program 11 times [2023-02-18 19:36:43,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:43,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554908821] [2023-02-18 19:36:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:43,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:43,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:36:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:44,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-18 19:36:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1097 refuted. 0 times theorem prover too weak. 7431 trivial. 0 not checked. [2023-02-18 19:36:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:44,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554908821] [2023-02-18 19:36:44,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554908821] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:44,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525811087] [2023-02-18 19:36:44,339 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 19:36:44,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:44,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:44,341 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:36:44,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 19:36:44,752 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2023-02-18 19:36:44,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:44,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-18 19:36:44,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:44,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2023-02-18 19:36:44,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:36:45,253 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2023-02-18 19:36:45,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525811087] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:36:45,253 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:36:45,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 23] total 35 [2023-02-18 19:36:45,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744144939] [2023-02-18 19:36:45,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:36:45,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-18 19:36:45,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:36:45,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-18 19:36:45,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 19:36:45,256 INFO L87 Difference]: Start difference. First operand 394 states and 551 transitions. Second operand has 35 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 22 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (39), 19 states have call predecessors, (39), 22 states have call successors, (39) [2023-02-18 19:36:45,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:36:45,815 INFO L93 Difference]: Finished difference Result 529 states and 786 transitions. [2023-02-18 19:36:45,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-18 19:36:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 22 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (39), 19 states have call predecessors, (39), 22 states have call successors, (39) Word has length 344 [2023-02-18 19:36:45,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:36:45,819 INFO L225 Difference]: With dead ends: 529 [2023-02-18 19:36:45,819 INFO L226 Difference]: Without dead ends: 423 [2023-02-18 19:36:45,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 855 GetRequests, 776 SyntacticMatches, 29 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=479, Invalid=2173, Unknown=0, NotChecked=0, Total=2652 [2023-02-18 19:36:45,821 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 57 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 19:36:45,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 187 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 19:36:45,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-02-18 19:36:45,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 394. [2023-02-18 19:36:45,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 202 states have (on average 1.0594059405940595) internal successors, (214), 202 states have internal predecessors, (214), 119 states have call successors, (119), 60 states have call predecessors, (119), 72 states have return successors, (204), 131 states have call predecessors, (204), 119 states have call successors, (204) [2023-02-18 19:36:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 537 transitions. [2023-02-18 19:36:45,931 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 537 transitions. Word has length 344 [2023-02-18 19:36:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:36:45,932 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 537 transitions. [2023-02-18 19:36:45,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 29 states have (on average 2.0) internal successors, (58), 28 states have internal predecessors, (58), 22 states have call successors, (30), 2 states have call predecessors, (30), 13 states have return successors, (39), 19 states have call predecessors, (39), 22 states have call successors, (39) [2023-02-18 19:36:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 537 transitions. [2023-02-18 19:36:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-02-18 19:36:45,938 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:36:45,938 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:36:45,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 19:36:46,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-18 19:36:46,149 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:36:46,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:36:46,150 INFO L85 PathProgramCache]: Analyzing trace with hash -430264399, now seen corresponding path program 12 times [2023-02-18 19:36:46,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:36:46,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363838075] [2023-02-18 19:36:46,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:36:46,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:36:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:48,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:36:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:50,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:51,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:51,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:51,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:36:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:36:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:36:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:36:52,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:52,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:36:53,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-18 19:36:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:36:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:36:53,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 92 proven. 2940 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2023-02-18 19:36:53,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:36:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363838075] [2023-02-18 19:36:53,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363838075] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:36:53,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707143901] [2023-02-18 19:36:53,208 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 19:36:53,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:36:53,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:36:53,210 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:36:53,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 19:36:53,611 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2023-02-18 19:36:53,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:36:53,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 339 conjunts are in the unsatisfiable core [2023-02-18 19:36:53,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:36:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2023-02-18 19:36:54,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:37:03,359 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-02-18 19:37:03,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707143901] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:37:03,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:37:03,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 108] total 139 [2023-02-18 19:37:03,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268401974] [2023-02-18 19:37:03,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:37:03,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2023-02-18 19:37:03,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:37:03,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2023-02-18 19:37:03,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=18689, Unknown=0, NotChecked=0, Total=19182 [2023-02-18 19:37:03,366 INFO L87 Difference]: Start difference. First operand 394 states and 537 transitions. Second operand has 139 states, 104 states have (on average 1.7211538461538463) internal successors, (179), 106 states have internal predecessors, (179), 54 states have call successors, (76), 35 states have call predecessors, (76), 68 states have return successors, (91), 70 states have call predecessors, (91), 54 states have call successors, (91) [2023-02-18 19:39:40,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:39:40,188 INFO L93 Difference]: Finished difference Result 1257 states and 1958 transitions. [2023-02-18 19:39:40,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 394 states. [2023-02-18 19:39:40,189 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 104 states have (on average 1.7211538461538463) internal successors, (179), 106 states have internal predecessors, (179), 54 states have call successors, (76), 35 states have call predecessors, (76), 68 states have return successors, (91), 70 states have call predecessors, (91), 54 states have call successors, (91) Word has length 350 [2023-02-18 19:39:40,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:39:40,198 INFO L225 Difference]: With dead ends: 1257 [2023-02-18 19:39:40,198 INFO L226 Difference]: Without dead ends: 1253 [2023-02-18 19:39:40,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1320 GetRequests, 640 SyntacticMatches, 166 SemanticMatches, 514 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85680 ImplicationChecksByTransitivity, 135.5s TimeCoverageRelationStatistics Valid=36266, Invalid=229474, Unknown=0, NotChecked=0, Total=265740 [2023-02-18 19:39:40,221 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 6062 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 34621 mSolverCounterSat, 21539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6069 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 56160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 21539 IncrementalHoareTripleChecker+Valid, 34621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:39:40,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6069 Valid, 2485 Invalid, 56160 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [21539 Valid, 34621 Invalid, 0 Unknown, 0 Unchecked, 28.2s Time] [2023-02-18 19:39:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-02-18 19:39:40,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1082. [2023-02-18 19:39:40,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 581 states have (on average 1.0499139414802066) internal successors, (610), 570 states have internal predecessors, (610), 324 states have call successors, (324), 195 states have call predecessors, (324), 176 states have return successors, (644), 316 states have call predecessors, (644), 324 states have call successors, (644) [2023-02-18 19:39:40,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1578 transitions. [2023-02-18 19:39:40,878 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1578 transitions. Word has length 350 [2023-02-18 19:39:40,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:39:40,879 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1578 transitions. [2023-02-18 19:39:40,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 104 states have (on average 1.7211538461538463) internal successors, (179), 106 states have internal predecessors, (179), 54 states have call successors, (76), 35 states have call predecessors, (76), 68 states have return successors, (91), 70 states have call predecessors, (91), 54 states have call successors, (91) [2023-02-18 19:39:40,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1578 transitions. [2023-02-18 19:39:40,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-02-18 19:39:40,887 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:39:40,887 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 32, 31, 31, 31, 31, 31, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:39:40,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 19:39:41,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:39:41,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:39:41,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:39:41,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1561412011, now seen corresponding path program 13 times [2023-02-18 19:39:41,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:39:41,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665866470] [2023-02-18 19:39:41,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:39:41,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:39:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:39:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:39:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-18 19:39:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:41,999 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1122 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2023-02-18 19:39:41,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:39:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665866470] [2023-02-18 19:39:42,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665866470] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:39:42,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527022988] [2023-02-18 19:39:42,000 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 19:39:42,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:39:42,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:39:42,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:39:42,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 19:39:42,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:42,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-18 19:39:42,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:39:42,449 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2023-02-18 19:39:42,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:39:42,892 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2023-02-18 19:39:42,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527022988] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:39:42,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:39:42,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2023-02-18 19:39:42,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628273664] [2023-02-18 19:39:42,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:39:42,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-18 19:39:42,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:39:42,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-18 19:39:42,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1230, Unknown=0, NotChecked=0, Total=1482 [2023-02-18 19:39:42,894 INFO L87 Difference]: Start difference. First operand 1082 states and 1578 transitions. Second operand has 39 states, 33 states have (on average 2.0) internal successors, (66), 32 states have internal predecessors, (66), 26 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (44), 18 states have call predecessors, (44), 26 states have call successors, (44) [2023-02-18 19:39:43,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:39:43,859 INFO L93 Difference]: Finished difference Result 1652 states and 2596 transitions. [2023-02-18 19:39:43,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-18 19:39:43,861 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 33 states have (on average 2.0) internal successors, (66), 32 states have internal predecessors, (66), 26 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (44), 18 states have call predecessors, (44), 26 states have call successors, (44) Word has length 356 [2023-02-18 19:39:43,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:39:43,870 INFO L225 Difference]: With dead ends: 1652 [2023-02-18 19:39:43,871 INFO L226 Difference]: Without dead ends: 1180 [2023-02-18 19:39:43,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 794 SyntacticMatches, 37 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1334 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=624, Invalid=2798, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 19:39:43,875 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 53 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 19:39:43,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 144 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 19:39:43,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-02-18 19:39:44,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 977. [2023-02-18 19:39:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 493 states have (on average 1.054766734279919) internal successors, (520), 493 states have internal predecessors, (520), 303 states have call successors, (303), 151 states have call predecessors, (303), 180 states have return successors, (532), 332 states have call predecessors, (532), 303 states have call successors, (532) [2023-02-18 19:39:44,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1355 transitions. [2023-02-18 19:39:44,418 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1355 transitions. Word has length 356 [2023-02-18 19:39:44,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:39:44,418 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1355 transitions. [2023-02-18 19:39:44,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 33 states have (on average 2.0) internal successors, (66), 32 states have internal predecessors, (66), 26 states have call successors, (31), 2 states have call predecessors, (31), 15 states have return successors, (44), 18 states have call predecessors, (44), 26 states have call successors, (44) [2023-02-18 19:39:44,419 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1355 transitions. [2023-02-18 19:39:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2023-02-18 19:39:44,425 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:39:44,426 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 48, 47, 47, 47, 47, 47, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:39:44,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 19:39:44,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 19:39:44,635 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:39:44,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:39:44,635 INFO L85 PathProgramCache]: Analyzing trace with hash -190410831, now seen corresponding path program 14 times [2023-02-18 19:39:44,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:39:44,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782948616] [2023-02-18 19:39:44,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:39:44,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:39:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:39:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:45,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:39:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:45,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-02-18 19:39:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:45,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:46,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:46,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:46,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2023-02-18 19:39:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:46,139 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1630 proven. 2173 refuted. 0 times theorem prover too weak. 16271 trivial. 0 not checked. [2023-02-18 19:39:46,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:39:46,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782948616] [2023-02-18 19:39:46,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782948616] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:39:46,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858912634] [2023-02-18 19:39:46,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 19:39:46,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:39:46,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:39:46,143 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:39:46,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 19:39:46,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 19:39:46,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:39:46,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 2435 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 19:39:46,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:39:46,625 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2215 refuted. 0 times theorem prover too weak. 16219 trivial. 0 not checked. [2023-02-18 19:39:46,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:39:46,998 INFO L134 CoverageAnalysis]: Checked inductivity of 20074 backedges. 1640 proven. 2256 refuted. 0 times theorem prover too weak. 16178 trivial. 0 not checked. [2023-02-18 19:39:46,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858912634] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:39:46,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:39:46,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 16, 25] total 39 [2023-02-18 19:39:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460037417] [2023-02-18 19:39:46,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:39:47,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-18 19:39:47,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:39:47,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-18 19:39:47,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1133, Unknown=0, NotChecked=0, Total=1482 [2023-02-18 19:39:47,002 INFO L87 Difference]: Start difference. First operand 977 states and 1355 transitions. Second operand has 39 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 33 states have call successors, (42), 3 states have call predecessors, (42), 14 states have return successors, (54), 21 states have call predecessors, (54), 33 states have call successors, (54) [2023-02-18 19:39:48,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:39:48,120 INFO L93 Difference]: Finished difference Result 1343 states and 1935 transitions. [2023-02-18 19:39:48,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-18 19:39:48,121 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 33 states have call successors, (42), 3 states have call predecessors, (42), 14 states have return successors, (54), 21 states have call predecessors, (54), 33 states have call successors, (54) Word has length 510 [2023-02-18 19:39:48,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:39:48,132 INFO L225 Difference]: With dead ends: 1343 [2023-02-18 19:39:48,132 INFO L226 Difference]: Without dead ends: 1177 [2023-02-18 19:39:48,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1268 GetRequests, 1171 SyntacticMatches, 34 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1556 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=971, Invalid=3189, Unknown=0, NotChecked=0, Total=4160 [2023-02-18 19:39:48,135 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 69 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 19:39:48,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 199 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 19:39:48,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2023-02-18 19:39:48,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 974. [2023-02-18 19:39:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 492 states have (on average 1.0548780487804879) internal successors, (519), 492 states have internal predecessors, (519), 303 states have call successors, (303), 152 states have call predecessors, (303), 178 states have return successors, (500), 329 states have call predecessors, (500), 303 states have call successors, (500) [2023-02-18 19:39:48,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1322 transitions. [2023-02-18 19:39:48,761 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1322 transitions. Word has length 510 [2023-02-18 19:39:48,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:39:48,761 INFO L495 AbstractCegarLoop]: Abstraction has 974 states and 1322 transitions. [2023-02-18 19:39:48,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 33 states have call successors, (42), 3 states have call predecessors, (42), 14 states have return successors, (54), 21 states have call predecessors, (54), 33 states have call successors, (54) [2023-02-18 19:39:48,762 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1322 transitions. [2023-02-18 19:39:48,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-02-18 19:39:48,770 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:39:48,771 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:39:48,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 19:39:48,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 19:39:48,981 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:39:48,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:39:48,982 INFO L85 PathProgramCache]: Analyzing trace with hash -105398351, now seen corresponding path program 15 times [2023-02-18 19:39:48,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:39:48,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845317339] [2023-02-18 19:39:48,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:39:48,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:39:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:49,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:39:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:50,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:39:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-02-18 19:39:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:39:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:39:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:39:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:39:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:39:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2023-02-18 19:39:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:39:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:39:51,143 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2762 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2023-02-18 19:39:51,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:39:51,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845317339] [2023-02-18 19:39:51,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845317339] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:39:51,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26290871] [2023-02-18 19:39:51,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 19:39:51,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:39:51,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:39:51,145 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:39:51,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 19:39:51,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2023-02-18 19:39:51,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:39:51,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-18 19:39:51,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:39:51,635 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2446 refuted. 0 times theorem prover too weak. 33024 trivial. 0 not checked. [2023-02-18 19:39:51,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:39:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 492 proven. 2487 refuted. 0 times theorem prover too weak. 32983 trivial. 0 not checked. [2023-02-18 19:39:52,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26290871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:39:52,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:39:52,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 16, 25] total 46 [2023-02-18 19:39:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32455153] [2023-02-18 19:39:52,040 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:39:52,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-18 19:39:52,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:39:52,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-18 19:39:52,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1772, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 19:39:52,043 INFO L87 Difference]: Start difference. First operand 974 states and 1322 transitions. Second operand has 46 states, 38 states have (on average 1.868421052631579) internal successors, (71), 37 states have internal predecessors, (71), 26 states have call successors, (33), 2 states have call predecessors, (33), 23 states have return successors, (47), 30 states have call predecessors, (47), 26 states have call successors, (47) [2023-02-18 19:39:53,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:39:53,982 INFO L93 Difference]: Finished difference Result 1508 states and 1967 transitions. [2023-02-18 19:39:53,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2023-02-18 19:39:53,982 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 38 states have (on average 1.868421052631579) internal successors, (71), 37 states have internal predecessors, (71), 26 states have call successors, (33), 2 states have call predecessors, (33), 23 states have return successors, (47), 30 states have call predecessors, (47), 26 states have call successors, (47) Word has length 670 [2023-02-18 19:39:53,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:39:53,992 INFO L225 Difference]: With dead ends: 1508 [2023-02-18 19:39:53,993 INFO L226 Difference]: Without dead ends: 1504 [2023-02-18 19:39:53,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 1549 SyntacticMatches, 30 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2883 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1274, Invalid=7656, Unknown=0, NotChecked=0, Total=8930 [2023-02-18 19:39:53,995 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 19:39:53,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 308 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 19:39:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2023-02-18 19:39:54,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 977. [2023-02-18 19:39:54,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 494 states have (on average 1.0546558704453441) internal successors, (521), 494 states have internal predecessors, (521), 303 states have call successors, (303), 152 states have call predecessors, (303), 179 states have return successors, (501), 330 states have call predecessors, (501), 303 states have call successors, (501) [2023-02-18 19:39:54,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1325 transitions. [2023-02-18 19:39:54,553 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1325 transitions. Word has length 670 [2023-02-18 19:39:54,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:39:54,554 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1325 transitions. [2023-02-18 19:39:54,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 38 states have (on average 1.868421052631579) internal successors, (71), 37 states have internal predecessors, (71), 26 states have call successors, (33), 2 states have call predecessors, (33), 23 states have return successors, (47), 30 states have call predecessors, (47), 26 states have call successors, (47) [2023-02-18 19:39:54,554 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1325 transitions. [2023-02-18 19:39:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2023-02-18 19:39:54,562 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:39:54,562 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 64, 63, 63, 63, 63, 63, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:39:54,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 19:39:54,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 19:39:54,769 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:39:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:39:54,769 INFO L85 PathProgramCache]: Analyzing trace with hash 442651051, now seen corresponding path program 16 times [2023-02-18 19:39:54,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:39:54,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902674746] [2023-02-18 19:39:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:39:54,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:39:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:02,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-18 19:40:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:07,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:10,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:40:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:40:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:40:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:11,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-02-18 19:40:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:12,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:12,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:40:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:13,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-18 19:40:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-18 19:40:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-18 19:40:14,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-18 19:40:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-18 19:40:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2023-02-18 19:40:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-18 19:40:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:40:14,744 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 188 proven. 12010 refuted. 0 times theorem prover too weak. 23792 trivial. 0 not checked. [2023-02-18 19:40:14,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:40:14,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902674746] [2023-02-18 19:40:14,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902674746] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 19:40:14,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968207105] [2023-02-18 19:40:14,745 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 19:40:14,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:40:14,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:40:14,746 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:40:14,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 19:40:15,283 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 19:40:15,283 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 19:40:15,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3233 conjuncts, 663 conjunts are in the unsatisfiable core [2023-02-18 19:40:15,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:40:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 12010 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2023-02-18 19:40:16,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:40:43,136 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 35698 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-02-18 19:40:43,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968207105] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:40:43,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 19:40:43,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 206] total 243 [2023-02-18 19:40:43,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140271497] [2023-02-18 19:40:43,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 19:40:43,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2023-02-18 19:40:43,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:40:43,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2023-02-18 19:40:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=833, Invalid=57973, Unknown=0, NotChecked=0, Total=58806 [2023-02-18 19:40:43,145 INFO L87 Difference]: Start difference. First operand 977 states and 1325 transitions. Second operand has 243 states, 175 states have (on average 1.7942857142857143) internal successors, (314), 190 states have internal predecessors, (314), 103 states have call successors, (141), 67 states have call predecessors, (141), 120 states have return successors, (160), 123 states have call predecessors, (160), 103 states have call successors, (160)