./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 26d01a9c 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-?-26d01a9 [2023-02-17 02:34:10,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 02:34:10,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 02:34:10,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 02:34:10,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 02:34:10,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 02:34:10,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 02:34:10,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 02:34:10,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 02:34:10,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 02:34:10,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 02:34:10,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 02:34:10,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 02:34:10,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 02:34:10,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 02:34:10,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 02:34:10,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 02:34:10,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 02:34:10,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 02:34:10,255 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 02:34:10,255 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 02:34:10,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 02:34:10,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 02:34:10,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 02:34:10,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 02:34:10,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 02:34:10,272 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 02:34:10,273 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 02:34:10,273 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 02:34:10,274 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 02:34:10,274 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 02:34:10,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 02:34:10,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 02:34:10,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 02:34:10,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 02:34:10,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 02:34:10,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 02:34:10,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 02:34:10,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 02:34:10,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 02:34:10,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 02:34:10,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 02:34:10,292 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 02:34:10,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 02:34:10,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 02:34:10,293 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 02:34:10,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 02:34:10,294 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 02:34:10,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 02:34:10,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 02:34:10,294 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 02:34:10,294 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 02:34:10,294 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 02:34:10,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 02:34:10,296 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 02:34:10,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 02:34:10,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 02:34:10,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 02:34:10,296 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 02:34:10,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 02:34:10,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 02:34:10,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 02:34:10,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 02:34:10,300 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 02:34:10,300 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b02fad28964214b0cd332ac12fce3136c6c5e9247130ab67f1c2c3baea22f9 [2023-02-17 02:34:10,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 02:34:10,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 02:34:10,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 02:34:10,519 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 02:34:10,519 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 02:34:10,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi01.c [2023-02-17 02:34:11,421 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 02:34:11,538 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 02:34:11,539 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi01.c [2023-02-17 02:34:11,543 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2e31ee6/4885ccaea57c4d54b666b363cca635e8/FLAG0dfb69a14 [2023-02-17 02:34:11,553 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed2e31ee6/4885ccaea57c4d54b666b363cca635e8 [2023-02-17 02:34:11,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 02:34:11,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 02:34:11,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 02:34:11,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 02:34:11,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 02:34:11,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc3f32c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11, skipping insertion in model container [2023-02-17 02:34:11,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 02:34:11,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 02:34:11,667 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] [2023-02-17 02:34:11,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 02:34:11,676 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 02:34:11,685 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] [2023-02-17 02:34:11,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 02:34:11,694 INFO L208 MainTranslator]: Completed translation [2023-02-17 02:34:11,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11 WrapperNode [2023-02-17 02:34:11,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 02:34:11,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 02:34:11,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 02:34:11,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 02:34:11,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,713 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-02-17 02:34:11,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 02:34:11,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 02:34:11,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 02:34:11,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 02:34:11,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 02:34:11,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 02:34:11,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 02:34:11,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 02:34:11,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (1/1) ... [2023-02-17 02:34:11,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 02:34:11,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:11,752 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) [2023-02-17 02:34:11,757 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 [2023-02-17 02:34:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 02:34:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure applyHanoi [2023-02-17 02:34:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure applyHanoi [2023-02-17 02:34:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-17 02:34:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-17 02:34:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 02:34:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 02:34:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 02:34:11,819 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 02:34:11,820 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 02:34:11,907 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 02:34:11,912 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 02:34:11,912 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-17 02:34:11,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:34:11 BoogieIcfgContainer [2023-02-17 02:34:11,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 02:34:11,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 02:34:11,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 02:34:11,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 02:34:11,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 02:34:11" (1/3) ... [2023-02-17 02:34:11,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 02:34:11, skipping insertion in model container [2023-02-17 02:34:11,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 02:34:11" (2/3) ... [2023-02-17 02:34:11,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d59fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 02:34:11, skipping insertion in model container [2023-02-17 02:34:11,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 02:34:11" (3/3) ... [2023-02-17 02:34:11,945 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi01.c [2023-02-17 02:34:11,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 02:34:11,964 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 02:34:12,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 02:34:12,016 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;@d4ee041, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 02:34:12,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 02:34:12,020 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) [2023-02-17 02:34:12,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 02:34:12,026 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:12,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 02:34:12,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:12,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:12,032 INFO L85 PathProgramCache]: Analyzing trace with hash -424312916, now seen corresponding path program 1 times [2023-02-17 02:34:12,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:12,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207496614] [2023-02-17 02:34:12,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:12,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-17 02:34:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 02:34:12,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:12,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207496614] [2023-02-17 02:34:12,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207496614] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 02:34:12,280 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 02:34:12,280 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 02:34:12,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650888868] [2023-02-17 02:34:12,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 02:34:12,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 02:34:12,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:12,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 02:34:12,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-17 02:34:12,313 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) [2023-02-17 02:34:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:12,432 INFO L93 Difference]: Finished difference Result 43 states and 52 transitions. [2023-02-17 02:34:12,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-17 02:34:12,434 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 [2023-02-17 02:34:12,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:12,439 INFO L225 Difference]: With dead ends: 43 [2023-02-17 02:34:12,440 INFO L226 Difference]: Without dead ends: 23 [2023-02-17 02:34:12,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-02-17 02:34:12,448 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 [2023-02-17 02:34:12,449 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] [2023-02-17 02:34:12,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-17 02:34:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-17 02:34:12,482 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) [2023-02-17 02:34:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-02-17 02:34:12,486 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 16 [2023-02-17 02:34:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:12,486 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-02-17 02:34:12,486 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) [2023-02-17 02:34:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-02-17 02:34:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-17 02:34:12,488 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:12,489 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] [2023-02-17 02:34:12,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 02:34:12,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:12,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:12,490 INFO L85 PathProgramCache]: Analyzing trace with hash -2103389423, now seen corresponding path program 1 times [2023-02-17 02:34:12,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728595344] [2023-02-17 02:34:12,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:12,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:12,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 02:34:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 02:34:12,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:12,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728595344] [2023-02-17 02:34:12,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728595344] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:12,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850891398] [2023-02-17 02:34:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:12,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:12,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:12,791 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) [2023-02-17 02:34:12,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 02:34:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:12,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-17 02:34:12,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:12,935 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-02-17 02:34:12,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:13,012 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-17 02:34:13,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850891398] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:13,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:13,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 17 [2023-02-17 02:34:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168899142] [2023-02-17 02:34:13,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:13,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 02:34:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 02:34:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-02-17 02:34:13,015 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) [2023-02-17 02:34:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:13,288 INFO L93 Difference]: Finished difference Result 74 states and 104 transitions. [2023-02-17 02:34:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 02:34:13,289 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 [2023-02-17 02:34:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:13,290 INFO L225 Difference]: With dead ends: 74 [2023-02-17 02:34:13,290 INFO L226 Difference]: Without dead ends: 68 [2023-02-17 02:34:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 50 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=520, Unknown=0, NotChecked=0, Total=650 [2023-02-17 02:34:13,292 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 [2023-02-17 02:34:13,292 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] [2023-02-17 02:34:13,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-02-17 02:34:13,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2023-02-17 02:34:13,302 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) [2023-02-17 02:34:13,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2023-02-17 02:34:13,303 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 26 [2023-02-17 02:34:13,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:13,303 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2023-02-17 02:34:13,304 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) [2023-02-17 02:34:13,304 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2023-02-17 02:34:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-17 02:34:13,305 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:13,305 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] [2023-02-17 02:34:13,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:13,510 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 [2023-02-17 02:34:13,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:13,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:13,511 INFO L85 PathProgramCache]: Analyzing trace with hash 365687158, now seen corresponding path program 2 times [2023-02-17 02:34:13,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:13,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166309317] [2023-02-17 02:34:13,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:13,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:13,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:13,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-17 02:34:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:13,675 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 14 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-17 02:34:13,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:13,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166309317] [2023-02-17 02:34:13,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166309317] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:13,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781383376] [2023-02-17 02:34:13,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 02:34:13,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:13,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:13,680 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) [2023-02-17 02:34:13,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 02:34:13,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 02:34:13,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:13,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 02:34:13,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-17 02:34:13,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-17 02:34:13,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781383376] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:13,929 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:13,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 11] total 18 [2023-02-17 02:34:13,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628497675] [2023-02-17 02:34:13,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:13,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-17 02:34:13,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:13,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-17 02:34:13,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-02-17 02:34:13,931 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) [2023-02-17 02:34:14,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:14,121 INFO L93 Difference]: Finished difference Result 108 states and 169 transitions. [2023-02-17 02:34:14,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-17 02:34:14,122 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 [2023-02-17 02:34:14,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:14,125 INFO L225 Difference]: With dead ends: 108 [2023-02-17 02:34:14,125 INFO L226 Difference]: Without dead ends: 74 [2023-02-17 02:34:14,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 67 SyntacticMatches, 10 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2023-02-17 02:34:14,128 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 [2023-02-17 02:34:14,129 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] [2023-02-17 02:34:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-02-17 02:34:14,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 55. [2023-02-17 02:34:14,139 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) [2023-02-17 02:34:14,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2023-02-17 02:34:14,141 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 36 [2023-02-17 02:34:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:14,141 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2023-02-17 02:34:14,141 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) [2023-02-17 02:34:14,141 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2023-02-17 02:34:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-02-17 02:34:14,142 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:14,142 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] [2023-02-17 02:34:14,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:14,345 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 [2023-02-17 02:34:14,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash -787037173, now seen corresponding path program 1 times [2023-02-17 02:34:14,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:14,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994804144] [2023-02-17 02:34:14,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:14,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:14,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-17 02:34:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 02:34:14,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:14,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994804144] [2023-02-17 02:34:14,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994804144] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:14,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568820391] [2023-02-17 02:34:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:14,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:14,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:14,474 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) [2023-02-17 02:34:14,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 02:34:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:14,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 02:34:14,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:14,560 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-17 02:34:14,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:14,664 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-17 02:34:14,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568820391] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:14,664 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:14,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 19 [2023-02-17 02:34:14,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375685064] [2023-02-17 02:34:14,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:14,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-17 02:34:14,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:14,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-17 02:34:14,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2023-02-17 02:34:14,667 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) [2023-02-17 02:34:14,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:14,769 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2023-02-17 02:34:14,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-17 02:34:14,769 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 [2023-02-17 02:34:14,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:14,773 INFO L225 Difference]: With dead ends: 62 [2023-02-17 02:34:14,773 INFO L226 Difference]: Without dead ends: 50 [2023-02-17 02:34:14,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 52 SyntacticMatches, 11 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2023-02-17 02:34:14,775 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2023-02-17 02:34:14,776 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] [2023-02-17 02:34:14,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-17 02:34:14,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2023-02-17 02:34:14,788 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) [2023-02-17 02:34:14,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 60 transitions. [2023-02-17 02:34:14,790 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 60 transitions. Word has length 32 [2023-02-17 02:34:14,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:14,791 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 60 transitions. [2023-02-17 02:34:14,791 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) [2023-02-17 02:34:14,791 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 60 transitions. [2023-02-17 02:34:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-17 02:34:14,796 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:14,797 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] [2023-02-17 02:34:14,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:15,001 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 [2023-02-17 02:34:15,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash 464974891, now seen corresponding path program 2 times [2023-02-17 02:34:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:15,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460070686] [2023-02-17 02:34:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-02-17 02:34:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:15,318 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-02-17 02:34:15,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:15,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460070686] [2023-02-17 02:34:15,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460070686] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:15,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151606081] [2023-02-17 02:34:15,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 02:34:15,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:15,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:15,321 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) [2023-02-17 02:34:15,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 02:34:15,382 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 02:34:15,382 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:15,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-17 02:34:15,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-02-17 02:34:15,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:15,730 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-02-17 02:34:15,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151606081] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:15,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:15,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 18] total 31 [2023-02-17 02:34:15,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517812065] [2023-02-17 02:34:15,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:15,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-02-17 02:34:15,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:15,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-02-17 02:34:15,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=821, Unknown=0, NotChecked=0, Total=930 [2023-02-17 02:34:15,734 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) [2023-02-17 02:34:16,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:16,491 INFO L93 Difference]: Finished difference Result 101 states and 139 transitions. [2023-02-17 02:34:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-17 02:34:16,491 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 [2023-02-17 02:34:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:16,493 INFO L225 Difference]: With dead ends: 101 [2023-02-17 02:34:16,493 INFO L226 Difference]: Without dead ends: 97 [2023-02-17 02:34:16,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 95 SyntacticMatches, 15 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 760 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=401, Invalid=2461, Unknown=0, NotChecked=0, Total=2862 [2023-02-17 02:34:16,495 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 105 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-17 02:34:16,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 165 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-17 02:34:16,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-17 02:34:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 80. [2023-02-17 02:34:16,518 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) [2023-02-17 02:34:16,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 111 transitions. [2023-02-17 02:34:16,521 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 111 transitions. Word has length 52 [2023-02-17 02:34:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:16,522 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 111 transitions. [2023-02-17 02:34:16,522 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) [2023-02-17 02:34:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2023-02-17 02:34:16,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-17 02:34:16,524 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:16,524 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] [2023-02-17 02:34:16,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:16,729 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 [2023-02-17 02:34:16,729 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:16,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:16,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1359329167, now seen corresponding path program 3 times [2023-02-17 02:34:16,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:16,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984420764] [2023-02-17 02:34:16,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:16,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:16,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-02-17 02:34:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 13 proven. 41 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-17 02:34:16,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:16,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984420764] [2023-02-17 02:34:16,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984420764] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:16,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [366478543] [2023-02-17 02:34:16,921 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 02:34:16,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:16,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:16,922 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) [2023-02-17 02:34:16,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 02:34:16,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-17 02:34:16,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:16,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-17 02:34:16,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 12 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-02-17 02:34:17,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-02-17 02:34:17,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [366478543] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:17,184 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:17,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 15] total 24 [2023-02-17 02:34:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351057469] [2023-02-17 02:34:17,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:17,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 02:34:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 02:34:17,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2023-02-17 02:34:17,187 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) [2023-02-17 02:34:17,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:17,441 INFO L93 Difference]: Finished difference Result 142 states and 220 transitions. [2023-02-17 02:34:17,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 02:34:17,442 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 [2023-02-17 02:34:17,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:17,444 INFO L225 Difference]: With dead ends: 142 [2023-02-17 02:34:17,444 INFO L226 Difference]: Without dead ends: 76 [2023-02-17 02:34:17,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 17 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=959, Unknown=0, NotChecked=0, Total=1190 [2023-02-17 02:34:17,447 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 25 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 02:34:17,447 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] [2023-02-17 02:34:17,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-17 02:34:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 66. [2023-02-17 02:34:17,462 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) [2023-02-17 02:34:17,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-02-17 02:34:17,463 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 58 [2023-02-17 02:34:17,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:17,463 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-02-17 02:34:17,463 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) [2023-02-17 02:34:17,464 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-02-17 02:34:17,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-02-17 02:34:17,466 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:17,466 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] [2023-02-17 02:34:17,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:17,671 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 [2023-02-17 02:34:17,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:17,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:17,672 INFO L85 PathProgramCache]: Analyzing trace with hash 296645163, now seen corresponding path program 4 times [2023-02-17 02:34:17,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:17,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850937095] [2023-02-17 02:34:17,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:17,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:17,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:17,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:17,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:17,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-17 02:34:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:17,959 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 42 proven. 131 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-02-17 02:34:17,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:17,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850937095] [2023-02-17 02:34:17,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850937095] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:17,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078720264] [2023-02-17 02:34:17,960 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 02:34:17,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:17,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:17,961 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) [2023-02-17 02:34:17,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 02:34:18,036 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 02:34:18,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:18,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-17 02:34:18,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 125 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2023-02-17 02:34:18,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 48 proven. 135 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2023-02-17 02:34:18,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078720264] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:18,220 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:18,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 15] total 25 [2023-02-17 02:34:18,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828926547] [2023-02-17 02:34:18,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:18,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-17 02:34:18,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:18,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-17 02:34:18,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2023-02-17 02:34:18,222 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) [2023-02-17 02:34:18,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:18,454 INFO L93 Difference]: Finished difference Result 117 states and 174 transitions. [2023-02-17 02:34:18,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-17 02:34:18,455 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 [2023-02-17 02:34:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:18,456 INFO L225 Difference]: With dead ends: 117 [2023-02-17 02:34:18,456 INFO L226 Difference]: Without dead ends: 71 [2023-02-17 02:34:18,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 188 SyntacticMatches, 17 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=240, Invalid=1020, Unknown=0, NotChecked=0, Total=1260 [2023-02-17 02:34:18,457 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 02:34:18,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 112 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 02:34:18,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-17 02:34:18,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2023-02-17 02:34:18,463 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) [2023-02-17 02:34:18,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 88 transitions. [2023-02-17 02:34:18,463 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 88 transitions. Word has length 92 [2023-02-17 02:34:18,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:18,464 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 88 transitions. [2023-02-17 02:34:18,464 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) [2023-02-17 02:34:18,464 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 88 transitions. [2023-02-17 02:34:18,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-02-17 02:34:18,465 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:18,465 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] [2023-02-17 02:34:18,484 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-17 02:34:18,669 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 [2023-02-17 02:34:18,670 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:18,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:18,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1624983153, now seen corresponding path program 5 times [2023-02-17 02:34:18,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:18,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498358851] [2023-02-17 02:34:18,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:18,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:18,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:18,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:19,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:19,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:19,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-17 02:34:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 20 proven. 161 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-02-17 02:34:19,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:19,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498358851] [2023-02-17 02:34:19,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498358851] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:19,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522843877] [2023-02-17 02:34:19,339 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 02:34:19,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:19,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:19,340 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) [2023-02-17 02:34:19,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 02:34:19,425 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2023-02-17 02:34:19,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:19,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 91 conjunts are in the unsatisfiable core [2023-02-17 02:34:19,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:19,656 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2023-02-17 02:34:19,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:20,409 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 0 proven. 441 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-17 02:34:20,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522843877] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:20,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:20,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 32] total 51 [2023-02-17 02:34:20,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461624032] [2023-02-17 02:34:20,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:20,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-02-17 02:34:20,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:20,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-02-17 02:34:20,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=2365, Unknown=0, NotChecked=0, Total=2550 [2023-02-17 02:34:20,412 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) [2023-02-17 02:34:24,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:24,263 INFO L93 Difference]: Finished difference Result 222 states and 323 transitions. [2023-02-17 02:34:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-02-17 02:34:24,263 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 [2023-02-17 02:34:24,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:24,269 INFO L225 Difference]: With dead ends: 222 [2023-02-17 02:34:24,269 INFO L226 Difference]: Without dead ends: 218 [2023-02-17 02:34:24,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 192 SyntacticMatches, 22 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3393 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1686, Invalid=11196, Unknown=0, NotChecked=0, Total=12882 [2023-02-17 02:34:24,274 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 343 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 3155 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 4127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 3155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-02-17 02:34:24,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 508 Invalid, 4127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [972 Valid, 3155 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-02-17 02:34:24,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-02-17 02:34:24,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 179. [2023-02-17 02:34:24,299 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) [2023-02-17 02:34:24,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 256 transitions. [2023-02-17 02:34:24,301 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 256 transitions. Word has length 98 [2023-02-17 02:34:24,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:24,301 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 256 transitions. [2023-02-17 02:34:24,301 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) [2023-02-17 02:34:24,301 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 256 transitions. [2023-02-17 02:34:24,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-02-17 02:34:24,306 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:24,306 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] [2023-02-17 02:34:24,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:24,515 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 [2023-02-17 02:34:24,515 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:24,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1480250389, now seen corresponding path program 6 times [2023-02-17 02:34:24,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:24,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710049120] [2023-02-17 02:34:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:24,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:24,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-02-17 02:34:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:24,800 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 42 proven. 144 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2023-02-17 02:34:24,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:24,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710049120] [2023-02-17 02:34:24,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710049120] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:24,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296322208] [2023-02-17 02:34:24,801 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 02:34:24,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:24,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:24,812 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) [2023-02-17 02:34:24,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 02:34:24,887 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2023-02-17 02:34:24,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:24,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-17 02:34:24,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:24,957 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 113 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2023-02-17 02:34:24,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:25,120 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 72 proven. 132 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2023-02-17 02:34:25,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296322208] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:25,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:25,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 19] total 29 [2023-02-17 02:34:25,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74506147] [2023-02-17 02:34:25,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:25,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-02-17 02:34:25,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:25,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-02-17 02:34:25,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=670, Unknown=0, NotChecked=0, Total=812 [2023-02-17 02:34:25,124 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) [2023-02-17 02:34:25,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:25,426 INFO L93 Difference]: Finished difference Result 291 states and 470 transitions. [2023-02-17 02:34:25,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-17 02:34:25,426 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 [2023-02-17 02:34:25,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:25,428 INFO L225 Difference]: With dead ends: 291 [2023-02-17 02:34:25,428 INFO L226 Difference]: Without dead ends: 181 [2023-02-17 02:34:25,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 208 SyntacticMatches, 23 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=341, Invalid=1465, Unknown=0, NotChecked=0, Total=1806 [2023-02-17 02:34:25,430 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 46 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 02:34:25,430 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] [2023-02-17 02:34:25,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-17 02:34:25,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 157. [2023-02-17 02:34:25,454 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) [2023-02-17 02:34:25,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 220 transitions. [2023-02-17 02:34:25,455 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 220 transitions. Word has length 104 [2023-02-17 02:34:25,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:25,455 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 220 transitions. [2023-02-17 02:34:25,455 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) [2023-02-17 02:34:25,455 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 220 transitions. [2023-02-17 02:34:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-02-17 02:34:25,457 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:25,457 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] [2023-02-17 02:34:25,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-17 02:34:25,662 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 [2023-02-17 02:34:25,662 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:25,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1313628785, now seen corresponding path program 7 times [2023-02-17 02:34:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080061202] [2023-02-17 02:34:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:25,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:25,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:25,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:26,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:26,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-02-17 02:34:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 227 proven. 254 refuted. 0 times theorem prover too weak. 655 trivial. 0 not checked. [2023-02-17 02:34:26,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:26,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080061202] [2023-02-17 02:34:26,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080061202] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:26,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2085777403] [2023-02-17 02:34:26,060 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 02:34:26,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:26,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:26,061 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) [2023-02-17 02:34:26,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 02:34:26,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 02:34:26,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:26,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 233 proven. 268 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2023-02-17 02:34:26,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1136 backedges. 233 proven. 281 refuted. 0 times theorem prover too weak. 622 trivial. 0 not checked. [2023-02-17 02:34:26,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2085777403] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:26,359 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:26,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 17] total 27 [2023-02-17 02:34:26,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500186337] [2023-02-17 02:34:26,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:26,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-17 02:34:26,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:26,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-17 02:34:26,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2023-02-17 02:34:26,362 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) [2023-02-17 02:34:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:26,621 INFO L93 Difference]: Finished difference Result 248 states and 371 transitions. [2023-02-17 02:34:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-17 02:34:26,622 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 [2023-02-17 02:34:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:26,624 INFO L225 Difference]: With dead ends: 248 [2023-02-17 02:34:26,624 INFO L226 Difference]: Without dead ends: 178 [2023-02-17 02:34:26,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 297 SyntacticMatches, 20 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=443, Invalid=1363, Unknown=0, NotChecked=0, Total=1806 [2023-02-17 02:34:26,625 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 36 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 02:34:26,626 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] [2023-02-17 02:34:26,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-02-17 02:34:26,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 154. [2023-02-17 02:34:26,652 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) [2023-02-17 02:34:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 211 transitions. [2023-02-17 02:34:26,655 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 211 transitions. Word has length 138 [2023-02-17 02:34:26,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:26,655 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 211 transitions. [2023-02-17 02:34:26,655 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) [2023-02-17 02:34:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 211 transitions. [2023-02-17 02:34:26,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-02-17 02:34:26,661 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:26,661 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] [2023-02-17 02:34:26,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:26,867 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 [2023-02-17 02:34:26,867 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:26,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:26,867 INFO L85 PathProgramCache]: Analyzing trace with hash 149752433, now seen corresponding path program 8 times [2023-02-17 02:34:26,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:26,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462965340] [2023-02-17 02:34:26,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:26,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:27,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:27,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-17 02:34:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 107 proven. 404 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2023-02-17 02:34:27,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:27,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462965340] [2023-02-17 02:34:27,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462965340] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:27,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206488608] [2023-02-17 02:34:27,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 02:34:27,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:27,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:27,318 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) [2023-02-17 02:34:27,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 02:34:27,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 02:34:27,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:27,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-17 02:34:27,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 396 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2023-02-17 02:34:27,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2084 backedges. 115 proven. 416 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2023-02-17 02:34:27,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206488608] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:27,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:27,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 19] total 30 [2023-02-17 02:34:27,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505644960] [2023-02-17 02:34:27,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:27,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-17 02:34:27,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:27,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-17 02:34:27,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2023-02-17 02:34:27,664 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) [2023-02-17 02:34:27,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:27,997 INFO L93 Difference]: Finished difference Result 174 states and 237 transitions. [2023-02-17 02:34:27,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-17 02:34:27,997 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 [2023-02-17 02:34:27,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:27,999 INFO L225 Difference]: With dead ends: 174 [2023-02-17 02:34:27,999 INFO L226 Difference]: Without dead ends: 170 [2023-02-17 02:34:28,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 387 SyntacticMatches, 22 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 524 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=349, Invalid=1543, Unknown=0, NotChecked=0, Total=1892 [2023-02-17 02:34:28,000 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 [2023-02-17 02:34:28,000 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] [2023-02-17 02:34:28,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-02-17 02:34:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 157. [2023-02-17 02:34:28,036 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) [2023-02-17 02:34:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 214 transitions. [2023-02-17 02:34:28,037 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 214 transitions. Word has length 178 [2023-02-17 02:34:28,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:28,037 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 214 transitions. [2023-02-17 02:34:28,038 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) [2023-02-17 02:34:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 214 transitions. [2023-02-17 02:34:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-02-17 02:34:28,039 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:28,039 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] [2023-02-17 02:34:28,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:28,245 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 [2023-02-17 02:34:28,245 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:28,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2072776725, now seen corresponding path program 9 times [2023-02-17 02:34:28,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:28,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855636178] [2023-02-17 02:34:28,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:28,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:28,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-17 02:34:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:29,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:29,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 44 proven. 705 refuted. 0 times theorem prover too weak. 1351 trivial. 0 not checked. [2023-02-17 02:34:30,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:30,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855636178] [2023-02-17 02:34:30,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855636178] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:30,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215981295] [2023-02-17 02:34:30,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 02:34:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:30,066 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) [2023-02-17 02:34:30,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-17 02:34:30,237 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2023-02-17 02:34:30,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:30,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 175 conjunts are in the unsatisfiable core [2023-02-17 02:34:30,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 705 refuted. 0 times theorem prover too weak. 1395 trivial. 0 not checked. [2023-02-17 02:34:30,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:32,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2100 backedges. 0 proven. 2025 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-17 02:34:32,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215981295] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:32,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:32,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 58] total 83 [2023-02-17 02:34:32,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813751013] [2023-02-17 02:34:32,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:32,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-02-17 02:34:32,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:32,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-02-17 02:34:32,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=301, Invalid=6505, Unknown=0, NotChecked=0, Total=6806 [2023-02-17 02:34:32,925 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) [2023-02-17 02:34:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:54,028 INFO L93 Difference]: Finished difference Result 524 states and 792 transitions. [2023-02-17 02:34:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2023-02-17 02:34:54,029 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 [2023-02-17 02:34:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:54,033 INFO L225 Difference]: With dead ends: 524 [2023-02-17 02:34:54,033 INFO L226 Difference]: Without dead ends: 520 [2023-02-17 02:34:54,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 371 SyntacticMatches, 43 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16682 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=7719, Invalid=49641, Unknown=0, NotChecked=0, Total=57360 [2023-02-17 02:34:54,040 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1416 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 10365 mSolverCounterSat, 4561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 14926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4561 IncrementalHoareTripleChecker+Valid, 10365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-02-17 02:34:54,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1475 Invalid, 14926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4561 Valid, 10365 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-02-17 02:34:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2023-02-17 02:34:54,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 437. [2023-02-17 02:34:54,153 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) [2023-02-17 02:34:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 631 transitions. [2023-02-17 02:34:54,155 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 631 transitions. Word has length 184 [2023-02-17 02:34:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:54,156 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 631 transitions. [2023-02-17 02:34:54,156 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) [2023-02-17 02:34:54,156 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 631 transitions. [2023-02-17 02:34:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-02-17 02:34:54,159 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:54,159 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] [2023-02-17 02:34:54,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:54,363 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 [2023-02-17 02:34:54,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:54,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:54,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1729878095, now seen corresponding path program 10 times [2023-02-17 02:34:54,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:54,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60191449] [2023-02-17 02:34:54,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:54,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-02-17 02:34:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:54,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 107 proven. 423 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-02-17 02:34:54,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:54,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60191449] [2023-02-17 02:34:54,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60191449] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:54,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917821041] [2023-02-17 02:34:54,806 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 02:34:54,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:54,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:54,807 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) [2023-02-17 02:34:54,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-17 02:34:54,973 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 02:34:54,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:54,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-17 02:34:54,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:55,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 415 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2023-02-17 02:34:55,068 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:55,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 115 proven. 447 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2023-02-17 02:34:55,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917821041] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:55,320 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:55,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 23] total 34 [2023-02-17 02:34:55,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000257325] [2023-02-17 02:34:55,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:55,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-17 02:34:55,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:55,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-17 02:34:55,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122 [2023-02-17 02:34:55,322 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) [2023-02-17 02:34:55,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:55,778 INFO L93 Difference]: Finished difference Result 683 states and 1088 transitions. [2023-02-17 02:34:55,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-17 02:34:55,778 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 [2023-02-17 02:34:55,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:55,782 INFO L225 Difference]: With dead ends: 683 [2023-02-17 02:34:55,782 INFO L226 Difference]: Without dead ends: 467 [2023-02-17 02:34:55,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 406 SyntacticMatches, 29 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=472, Invalid=2078, Unknown=0, NotChecked=0, Total=2550 [2023-02-17 02:34:55,785 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 [2023-02-17 02:34:55,785 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] [2023-02-17 02:34:55,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-02-17 02:34:55,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 394. [2023-02-17 02:34:55,875 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) [2023-02-17 02:34:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 551 transitions. [2023-02-17 02:34:55,878 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 551 transitions. Word has length 190 [2023-02-17 02:34:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:55,878 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 551 transitions. [2023-02-17 02:34:55,879 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) [2023-02-17 02:34:55,879 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 551 transitions. [2023-02-17 02:34:55,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2023-02-17 02:34:55,885 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:55,885 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] [2023-02-17 02:34:55,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:56,090 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 [2023-02-17 02:34:56,090 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:56,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:56,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1351583765, now seen corresponding path program 11 times [2023-02-17 02:34:56,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:56,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515680266] [2023-02-17 02:34:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:56,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:34:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:34:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:34:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:56,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:34:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:34:57,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:34:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-17 02:34:57,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:34:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:34:57,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 244 proven. 1097 refuted. 0 times theorem prover too weak. 7431 trivial. 0 not checked. [2023-02-17 02:34:57,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:34:57,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515680266] [2023-02-17 02:34:57,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515680266] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:34:57,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059521528] [2023-02-17 02:34:57,075 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 02:34:57,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:34:57,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:34:57,076 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) [2023-02-17 02:34:57,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-17 02:34:57,418 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 56 check-sat command(s) [2023-02-17 02:34:57,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:34:57,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-17 02:34:57,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:34:57,499 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 839 proven. 501 refuted. 0 times theorem prover too weak. 7432 trivial. 0 not checked. [2023-02-17 02:34:57,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:34:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8772 backedges. 842 proven. 533 refuted. 0 times theorem prover too weak. 7397 trivial. 0 not checked. [2023-02-17 02:34:57,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059521528] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:34:57,810 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:34:57,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 15, 23] total 35 [2023-02-17 02:34:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543603496] [2023-02-17 02:34:57,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:34:57,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-17 02:34:57,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:34:57,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-17 02:34:57,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190 [2023-02-17 02:34:57,812 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) [2023-02-17 02:34:58,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:34:58,304 INFO L93 Difference]: Finished difference Result 529 states and 786 transitions. [2023-02-17 02:34:58,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-17 02:34:58,311 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 [2023-02-17 02:34:58,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:34:58,314 INFO L225 Difference]: With dead ends: 529 [2023-02-17 02:34:58,314 INFO L226 Difference]: Without dead ends: 423 [2023-02-17 02:34:58,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 855 GetRequests, 778 SyntacticMatches, 27 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 801 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=479, Invalid=2173, Unknown=0, NotChecked=0, Total=2652 [2023-02-17 02:34:58,315 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 [2023-02-17 02:34:58,315 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] [2023-02-17 02:34:58,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2023-02-17 02:34:58,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 394. [2023-02-17 02:34:58,401 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) [2023-02-17 02:34:58,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 537 transitions. [2023-02-17 02:34:58,403 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 537 transitions. Word has length 344 [2023-02-17 02:34:58,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:34:58,403 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 537 transitions. [2023-02-17 02:34:58,404 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) [2023-02-17 02:34:58,404 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 537 transitions. [2023-02-17 02:34:58,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-02-17 02:34:58,406 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:34:58,406 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] [2023-02-17 02:34:58,414 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-17 02:34:58,614 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 [2023-02-17 02:34:58,615 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:34:58,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:34:58,615 INFO L85 PathProgramCache]: Analyzing trace with hash -430264399, now seen corresponding path program 12 times [2023-02-17 02:34:58,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:34:58,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386195371] [2023-02-17 02:34:58,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:34:58,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:34:58,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:00,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:35:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:02,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:35:03,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:35:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:35:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:03,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:35:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:35:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:35:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:35:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:35:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:35:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-17 02:35:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:35:04,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:35:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 92 proven. 2940 refuted. 0 times theorem prover too weak. 5762 trivial. 0 not checked. [2023-02-17 02:35:04,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:35:04,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386195371] [2023-02-17 02:35:04,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386195371] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:35:04,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704751339] [2023-02-17 02:35:04,484 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 02:35:04,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:35:04,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:35:04,486 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) [2023-02-17 02:35:04,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-17 02:35:04,852 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 56 check-sat command(s) [2023-02-17 02:35:04,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:35:04,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 1651 conjuncts, 339 conjunts are in the unsatisfiable core [2023-02-17 02:35:04,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:35:05,655 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 2940 refuted. 0 times theorem prover too weak. 5854 trivial. 0 not checked. [2023-02-17 02:35:05,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:35:12,584 INFO L134 CoverageAnalysis]: Checked inductivity of 8794 backedges. 0 proven. 8644 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-02-17 02:35:12,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704751339] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:35:12,585 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:35:12,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 108] total 139 [2023-02-17 02:35:12,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902063517] [2023-02-17 02:35:12,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:35:12,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2023-02-17 02:35:12,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:35:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2023-02-17 02:35:12,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=493, Invalid=18689, Unknown=0, NotChecked=0, Total=19182 [2023-02-17 02:35:12,589 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) [2023-02-17 02:37:40,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:37:40,479 INFO L93 Difference]: Finished difference Result 1257 states and 1958 transitions. [2023-02-17 02:37:40,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 394 states. [2023-02-17 02:37:40,480 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 [2023-02-17 02:37:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:37:40,490 INFO L225 Difference]: With dead ends: 1257 [2023-02-17 02:37:40,491 INFO L226 Difference]: Without dead ends: 1253 [2023-02-17 02:37:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1320 GetRequests, 722 SyntacticMatches, 84 SemanticMatches, 514 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84469 ImplicationChecksByTransitivity, 125.5s TimeCoverageRelationStatistics Valid=36266, Invalid=229474, Unknown=0, NotChecked=0, Total=265740 [2023-02-17 02:37:40,520 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 6070 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 34280 mSolverCounterSat, 22406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6077 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 56686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 22406 IncrementalHoareTripleChecker+Valid, 34280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.8s IncrementalHoareTripleChecker+Time [2023-02-17 02:37:40,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6077 Valid, 2265 Invalid, 56686 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [22406 Valid, 34280 Invalid, 0 Unknown, 0 Unchecked, 26.8s Time] [2023-02-17 02:37:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2023-02-17 02:37:41,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1082. [2023-02-17 02:37:41,047 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) [2023-02-17 02:37:41,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1578 transitions. [2023-02-17 02:37:41,052 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1578 transitions. Word has length 350 [2023-02-17 02:37:41,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:37:41,053 INFO L495 AbstractCegarLoop]: Abstraction has 1082 states and 1578 transitions. [2023-02-17 02:37:41,053 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) [2023-02-17 02:37:41,054 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1578 transitions. [2023-02-17 02:37:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2023-02-17 02:37:41,059 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:37:41,059 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] [2023-02-17 02:37:41,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-17 02:37:41,266 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 [2023-02-17 02:37:41,266 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:37:41,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:37:41,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1561412011, now seen corresponding path program 13 times [2023-02-17 02:37:41,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:37:41,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361358249] [2023-02-17 02:37:41,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:37:41,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:37:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:37:41,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:37:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:41,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:42,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-02-17 02:37:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,154 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 244 proven. 1122 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2023-02-17 02:37:42,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:37:42,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361358249] [2023-02-17 02:37:42,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361358249] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:37:42,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107307686] [2023-02-17 02:37:42,155 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 02:37:42,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:37:42,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:37:42,156 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) [2023-02-17 02:37:42,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-17 02:37:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:42,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-17 02:37:42,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:37:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1112 refuted. 0 times theorem prover too weak. 7456 trivial. 0 not checked. [2023-02-17 02:37:42,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:37:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 8822 backedges. 254 proven. 1162 refuted. 0 times theorem prover too weak. 7406 trivial. 0 not checked. [2023-02-17 02:37:42,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107307686] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:37:42,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:37:42,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 27] total 39 [2023-02-17 02:37:42,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497403101] [2023-02-17 02:37:42,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:37:42,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-17 02:37:42,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:37:42,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-17 02:37:42,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1230, Unknown=0, NotChecked=0, Total=1482 [2023-02-17 02:37:42,908 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) [2023-02-17 02:37:43,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:37:43,869 INFO L93 Difference]: Finished difference Result 1652 states and 2596 transitions. [2023-02-17 02:37:43,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-17 02:37:43,870 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 [2023-02-17 02:37:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:37:43,879 INFO L225 Difference]: With dead ends: 1652 [2023-02-17 02:37:43,880 INFO L226 Difference]: Without dead ends: 1180 [2023-02-17 02:37:43,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 796 SyntacticMatches, 35 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=624, Invalid=2798, Unknown=0, NotChecked=0, Total=3422 [2023-02-17 02:37:43,885 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 53 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 02:37:43,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 194 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 02:37:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-02-17 02:37:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 977. [2023-02-17 02:37:44,377 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) [2023-02-17 02:37:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1355 transitions. [2023-02-17 02:37:44,382 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1355 transitions. Word has length 356 [2023-02-17 02:37:44,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:37:44,382 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1355 transitions. [2023-02-17 02:37:44,382 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) [2023-02-17 02:37:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1355 transitions. [2023-02-17 02:37:44,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2023-02-17 02:37:44,388 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:37:44,389 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] [2023-02-17 02:37:44,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-17 02:37:44,595 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 [2023-02-17 02:37:44,596 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:37:44,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:37:44,596 INFO L85 PathProgramCache]: Analyzing trace with hash -105398351, now seen corresponding path program 14 times [2023-02-17 02:37:44,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:37:44,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645578438] [2023-02-17 02:37:44,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:37:44,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:37:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:45,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:37:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:45,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:37:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-02-17 02:37:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:46,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:37:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:37:46,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:37:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:37:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:37:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2023-02-17 02:37:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:37:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 525 proven. 2762 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2023-02-17 02:37:46,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:37:46,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645578438] [2023-02-17 02:37:46,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645578438] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:37:46,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897958206] [2023-02-17 02:37:46,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 02:37:46,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:37:46,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:37:46,702 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) [2023-02-17 02:37:46,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-17 02:37:47,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 02:37:47,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:37:47,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 3219 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-17 02:37:47,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:37:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2750 refuted. 0 times theorem prover too weak. 32675 trivial. 0 not checked. [2023-02-17 02:37:47,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 02:37:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 35962 backedges. 537 proven. 2802 refuted. 0 times theorem prover too weak. 32623 trivial. 0 not checked. [2023-02-17 02:37:47,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897958206] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 02:37:47,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 02:37:47,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 17, 27] total 40 [2023-02-17 02:37:47,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201118914] [2023-02-17 02:37:47,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 02:37:47,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-17 02:37:47,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 02:37:47,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-17 02:37:47,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=1275, Unknown=0, NotChecked=0, Total=1560 [2023-02-17 02:37:47,610 INFO L87 Difference]: Start difference. First operand 977 states and 1355 transitions. Second operand has 40 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 32 states have internal predecessors, (65), 28 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) [2023-02-17 02:37:48,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 02:37:48,587 INFO L93 Difference]: Finished difference Result 1204 states and 1757 transitions. [2023-02-17 02:37:48,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-17 02:37:48,587 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 32 states have internal predecessors, (65), 28 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) Word has length 670 [2023-02-17 02:37:48,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 02:37:48,594 INFO L225 Difference]: With dead ends: 1204 [2023-02-17 02:37:48,595 INFO L226 Difference]: Without dead ends: 1038 [2023-02-17 02:37:48,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1643 GetRequests, 1553 SyntacticMatches, 32 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1136 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=630, Invalid=2910, Unknown=0, NotChecked=0, Total=3540 [2023-02-17 02:37:48,597 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 72 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-17 02:37:48,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 195 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-17 02:37:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2023-02-17 02:37:49,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 977. [2023-02-17 02:37:49,042 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) [2023-02-17 02:37:49,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1325 transitions. [2023-02-17 02:37:49,046 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1325 transitions. Word has length 670 [2023-02-17 02:37:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 02:37:49,047 INFO L495 AbstractCegarLoop]: Abstraction has 977 states and 1325 transitions. [2023-02-17 02:37:49,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 33 states have (on average 1.9696969696969697) internal successors, (65), 32 states have internal predecessors, (65), 28 states have call successors, (33), 2 states have call predecessors, (33), 15 states have return successors, (46), 19 states have call predecessors, (46), 28 states have call successors, (46) [2023-02-17 02:37:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1325 transitions. [2023-02-17 02:37:49,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2023-02-17 02:37:49,053 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 02:37:49,054 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] [2023-02-17 02:37:49,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-17 02:37:49,262 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 [2023-02-17 02:37:49,263 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 02:37:49,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 02:37:49,263 INFO L85 PathProgramCache]: Analyzing trace with hash 442651051, now seen corresponding path program 15 times [2023-02-17 02:37:49,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 02:37:49,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664576964] [2023-02-17 02:37:49,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 02:37:49,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 02:37:49,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:37:57,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-02-17 02:37:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:03,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:38:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:05,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:38:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:38:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2023-02-17 02:38:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:07,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:08,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:38:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:08,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:08,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-02-17 02:38:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-02-17 02:38:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-02-17 02:38:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-02-17 02:38:09,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-02-17 02:38:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 638 [2023-02-17 02:38:09,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-17 02:38:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 02:38:09,694 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 188 proven. 12010 refuted. 0 times theorem prover too weak. 23792 trivial. 0 not checked. [2023-02-17 02:38:09,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 02:38:09,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664576964] [2023-02-17 02:38:09,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664576964] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 02:38:09,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160966513] [2023-02-17 02:38:09,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 02:38:09,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 02:38:09,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 02:38:09,696 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) [2023-02-17 02:38:09,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-17 02:38:10,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 101 check-sat command(s) [2023-02-17 02:38:10,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 02:38:10,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 3231 conjuncts, 663 conjunts are in the unsatisfiable core [2023-02-17 02:38:10,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 02:38:12,427 INFO L134 CoverageAnalysis]: Checked inductivity of 35990 backedges. 0 proven. 12010 refuted. 0 times theorem prover too weak. 23980 trivial. 0 not checked. [2023-02-17 02:38:12,427 INFO L328 TraceCheckSpWp]: Computing backward predicates...