./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/eca-rers2012/Problem14_label46.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 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 12:39:52,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 12:39:52,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 12:39:52,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 12:39:52,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 12:39:52,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 12:39:52,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 12:39:52,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 12:39:52,371 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 12:39:52,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 12:39:52,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 12:39:52,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 12:39:52,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 12:39:52,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 12:39:52,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 12:39:52,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 12:39:52,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 12:39:52,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 12:39:52,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 12:39:52,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 12:39:52,397 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 12:39:52,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 12:39:52,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 12:39:52,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 12:39:52,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 12:39:52,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 12:39:52,406 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 12:39:52,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 12:39:52,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 12:39:52,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 12:39:52,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 12:39:52,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 12:39:52,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 12:39:52,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 12:39:52,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 12:39:52,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 12:39:52,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 12:39:52,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 12:39:52,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 12:39:52,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 12:39:52,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 12:39:52,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 12:39:52,418 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 12:39:52,448 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 12:39:52,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 12:39:52,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 12:39:52,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 12:39:52,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 12:39:52,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 12:39:52,450 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 12:39:52,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 12:39:52,450 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 12:39:52,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 12:39:52,452 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 12:39:52,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 12:39:52,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 12:39:52,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 12:39:52,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 12:39:52,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 12:39:52,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 12:39:52,453 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 12:39:52,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 12:39:52,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 12:39:52,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 12:39:52,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 12:39:52,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 12:39:52,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 12:39:52,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:39:52,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 12:39:52,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 12:39:52,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 12:39:52,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 12:39:52,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 12:39:52,456 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 12:39:52,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 12:39:52,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 12:39:52,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 454a0d8e81468f46c7e33771197733cd10e6f7a6ab6cc63470839978aa4b6ed5 [2022-07-22 12:39:52,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 12:39:52,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 12:39:52,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 12:39:52,687 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 12:39:52,688 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 12:39:52,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2022-07-22 12:39:52,739 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91283b007/d664b1cff8354f6d851084266d68a3c6/FLAG3df431bb1 [2022-07-22 12:39:53,248 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 12:39:53,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label46.c [2022-07-22 12:39:53,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91283b007/d664b1cff8354f6d851084266d68a3c6/FLAG3df431bb1 [2022-07-22 12:39:53,572 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91283b007/d664b1cff8354f6d851084266d68a3c6 [2022-07-22 12:39:53,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 12:39:53,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 12:39:53,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 12:39:53,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 12:39:53,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 12:39:53,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:39:53" (1/1) ... [2022-07-22 12:39:53,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3ec0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:53, skipping insertion in model container [2022-07-22 12:39:53,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:39:53" (1/1) ... [2022-07-22 12:39:53,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 12:39:53,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 12:39:53,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2022-07-22 12:39:54,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:39:54,064 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 12:39:54,090 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label46.c[4146,4159] [2022-07-22 12:39:54,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 12:39:54,179 INFO L208 MainTranslator]: Completed translation [2022-07-22 12:39:54,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54 WrapperNode [2022-07-22 12:39:54,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 12:39:54,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 12:39:54,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 12:39:54,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 12:39:54,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,273 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2022-07-22 12:39:54,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 12:39:54,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 12:39:54,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 12:39:54,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 12:39:54,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 12:39:54,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 12:39:54,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 12:39:54,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 12:39:54,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (1/1) ... [2022-07-22 12:39:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 12:39:54,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:39:54,420 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) [2022-07-22 12:39:54,438 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 [2022-07-22 12:39:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 12:39:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 12:39:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 12:39:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 12:39:54,526 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 12:39:54,528 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 12:39:55,409 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 12:39:55,416 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 12:39:55,417 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 12:39:55,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:39:55 BoogieIcfgContainer [2022-07-22 12:39:55,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 12:39:55,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 12:39:55,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 12:39:55,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 12:39:55,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:39:53" (1/3) ... [2022-07-22 12:39:55,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae268cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:39:55, skipping insertion in model container [2022-07-22 12:39:55,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:39:54" (2/3) ... [2022-07-22 12:39:55,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae268cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:39:55, skipping insertion in model container [2022-07-22 12:39:55,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:39:55" (3/3) ... [2022-07-22 12:39:55,426 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label46.c [2022-07-22 12:39:55,437 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 12:39:55,437 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 12:39:55,478 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 12:39:55,484 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@569e6f4e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@51e725ea [2022-07-22 12:39:55,484 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 12:39:55,488 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:55,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-22 12:39:55,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:39:55,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:39:55,496 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:39:55,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:39:55,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1453294289, now seen corresponding path program 1 times [2022-07-22 12:39:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:39:55,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346269376] [2022-07-22 12:39:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:39:55,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:39:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:39:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 12:39:55,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:39:55,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346269376] [2022-07-22 12:39:55,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346269376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:39:55,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:39:55,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:39:55,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523897252] [2022-07-22 12:39:55,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:39:55,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:39:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:39:55,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:39:55,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:39:55,803 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:39:57,104 INFO L93 Difference]: Finished difference Result 852 states and 1560 transitions. [2022-07-22 12:39:57,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:39:57,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2022-07-22 12:39:57,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:39:57,119 INFO L225 Difference]: With dead ends: 852 [2022-07-22 12:39:57,119 INFO L226 Difference]: Without dead ends: 538 [2022-07-22 12:39:57,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:39:57,125 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 554 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 12:39:57,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 44 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 12:39:57,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2022-07-22 12:39:57,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2022-07-22 12:39:57,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.4487895716945995) internal successors, (778), 537 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 778 transitions. [2022-07-22 12:39:57,182 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 778 transitions. Word has length 39 [2022-07-22 12:39:57,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:39:57,183 INFO L495 AbstractCegarLoop]: Abstraction has 538 states and 778 transitions. [2022-07-22 12:39:57,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,184 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 778 transitions. [2022-07-22 12:39:57,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-22 12:39:57,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:39:57,190 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:39:57,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 12:39:57,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:39:57,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:39:57,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1976295897, now seen corresponding path program 1 times [2022-07-22 12:39:57,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:39:57,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603496877] [2022-07-22 12:39:57,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:39:57,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:39:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:39:57,365 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-07-22 12:39:57,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:39:57,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603496877] [2022-07-22 12:39:57,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603496877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:39:57,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:39:57,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 12:39:57,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641472686] [2022-07-22 12:39:57,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:39:57,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:39:57,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:39:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:39:57,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:39:57,369 INFO L87 Difference]: Start difference. First operand 538 states and 778 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:39:57,890 INFO L93 Difference]: Finished difference Result 1074 states and 1656 transitions. [2022-07-22 12:39:57,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:39:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2022-07-22 12:39:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:39:57,894 INFO L225 Difference]: With dead ends: 1074 [2022-07-22 12:39:57,894 INFO L226 Difference]: Without dead ends: 716 [2022-07-22 12:39:57,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:39:57,908 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 125 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:39:57,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 57 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:39:57,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-22 12:39:57,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-22 12:39:57,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.353846153846154) internal successors, (968), 715 states have internal predecessors, (968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 968 transitions. [2022-07-22 12:39:57,931 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 968 transitions. Word has length 187 [2022-07-22 12:39:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:39:57,931 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 968 transitions. [2022-07-22 12:39:57,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:57,932 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 968 transitions. [2022-07-22 12:39:57,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-22 12:39:57,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:39:57,935 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:39:57,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 12:39:57,935 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:39:57,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:39:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1989656586, now seen corresponding path program 1 times [2022-07-22 12:39:57,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:39:57,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101263337] [2022-07-22 12:39:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:39:57,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:39:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:39:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-22 12:39:58,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:39:58,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101263337] [2022-07-22 12:39:58,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101263337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:39:58,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:39:58,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:39:58,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090738826] [2022-07-22 12:39:58,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:39:58,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:39:58,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:39:58,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:39:58,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:39:58,077 INFO L87 Difference]: Start difference. First operand 716 states and 968 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:58,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:39:58,720 INFO L93 Difference]: Finished difference Result 1637 states and 2268 transitions. [2022-07-22 12:39:58,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:39:58,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2022-07-22 12:39:58,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:39:58,724 INFO L225 Difference]: With dead ends: 1637 [2022-07-22 12:39:58,724 INFO L226 Difference]: Without dead ends: 1072 [2022-07-22 12:39:58,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:39:58,726 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 112 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:39:58,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 113 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:39:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2022-07-22 12:39:58,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 894. [2022-07-22 12:39:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.1724524076147815) internal successors, (1047), 893 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1047 transitions. [2022-07-22 12:39:58,745 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1047 transitions. Word has length 210 [2022-07-22 12:39:58,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:39:58,745 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1047 transitions. [2022-07-22 12:39:58,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1047 transitions. [2022-07-22 12:39:58,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-07-22 12:39:58,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:39:58,751 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:39:58,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 12:39:58,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:39:58,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:39:58,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1545432834, now seen corresponding path program 1 times [2022-07-22 12:39:58,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:39:58,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988214094] [2022-07-22 12:39:58,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:39:58,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:39:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:39:59,029 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 174 proven. 130 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-07-22 12:39:59,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:39:59,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988214094] [2022-07-22 12:39:59,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988214094] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:39:59,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025039966] [2022-07-22 12:39:59,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:39:59,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:39:59,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:39:59,035 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) [2022-07-22 12:39:59,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 12:39:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:39:59,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:39:59,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:39:59,272 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-07-22 12:39:59,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:39:59,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025039966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:39:59,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:39:59,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:39:59,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891094466] [2022-07-22 12:39:59,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:39:59,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:39:59,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:39:59,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:39:59,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:39:59,275 INFO L87 Difference]: Start difference. First operand 894 states and 1047 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:59,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:39:59,820 INFO L93 Difference]: Finished difference Result 2320 states and 2778 transitions. [2022-07-22 12:39:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:39:59,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 341 [2022-07-22 12:39:59,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:39:59,826 INFO L225 Difference]: With dead ends: 2320 [2022-07-22 12:39:59,826 INFO L226 Difference]: Without dead ends: 1606 [2022-07-22 12:39:59,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:39:59,828 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:39:59,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 265 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:39:59,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2022-07-22 12:39:59,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2022-07-22 12:39:59,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.1401541695865451) internal successors, (1627), 1427 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1627 transitions. [2022-07-22 12:39:59,851 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1627 transitions. Word has length 341 [2022-07-22 12:39:59,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:39:59,852 INFO L495 AbstractCegarLoop]: Abstraction has 1428 states and 1627 transitions. [2022-07-22 12:39:59,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:39:59,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1627 transitions. [2022-07-22 12:39:59,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-07-22 12:39:59,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:39:59,859 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:39:59,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 12:40:00,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:00,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:00,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:00,076 INFO L85 PathProgramCache]: Analyzing trace with hash 560605277, now seen corresponding path program 1 times [2022-07-22 12:40:00,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:00,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662178355] [2022-07-22 12:40:00,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:00,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2022-07-22 12:40:00,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:00,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662178355] [2022-07-22 12:40:00,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662178355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:00,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:00,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:00,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546513300] [2022-07-22 12:40:00,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:00,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:00,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:00,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:00,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:00,265 INFO L87 Difference]: Start difference. First operand 1428 states and 1627 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:00,792 INFO L93 Difference]: Finished difference Result 3210 states and 3757 transitions. [2022-07-22 12:40:00,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:00,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2022-07-22 12:40:00,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:00,799 INFO L225 Difference]: With dead ends: 3210 [2022-07-22 12:40:00,800 INFO L226 Difference]: Without dead ends: 1962 [2022-07-22 12:40:00,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:00,802 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 72 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:00,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 77 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2022-07-22 12:40:00,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2022-07-22 12:40:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.134043746494672) internal successors, (2022), 1783 states have internal predecessors, (2022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:00,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2022 transitions. [2022-07-22 12:40:00,838 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2022 transitions. Word has length 440 [2022-07-22 12:40:00,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:00,839 INFO L495 AbstractCegarLoop]: Abstraction has 1784 states and 2022 transitions. [2022-07-22 12:40:00,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:00,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2022 transitions. [2022-07-22 12:40:00,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2022-07-22 12:40:00,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:00,846 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:00,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 12:40:00,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:00,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:00,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1453668839, now seen corresponding path program 1 times [2022-07-22 12:40:00,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:00,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146983779] [2022-07-22 12:40:00,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:00,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 554 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-07-22 12:40:01,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:01,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146983779] [2022-07-22 12:40:01,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146983779] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:01,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:01,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:01,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595458444] [2022-07-22 12:40:01,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:01,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:01,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:01,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:01,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:01,016 INFO L87 Difference]: Start difference. First operand 1784 states and 2022 transitions. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:01,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:01,754 INFO L93 Difference]: Finished difference Result 3744 states and 4238 transitions. [2022-07-22 12:40:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 464 [2022-07-22 12:40:01,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:01,762 INFO L225 Difference]: With dead ends: 3744 [2022-07-22 12:40:01,762 INFO L226 Difference]: Without dead ends: 2140 [2022-07-22 12:40:01,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:01,766 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 126 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:01,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 90 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 12:40:01,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-07-22 12:40:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2022-07-22 12:40:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.11781206171108) internal successors, (2391), 2139 states have internal predecessors, (2391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2391 transitions. [2022-07-22 12:40:01,804 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2391 transitions. Word has length 464 [2022-07-22 12:40:01,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:01,805 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2391 transitions. [2022-07-22 12:40:01,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:01,806 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2391 transitions. [2022-07-22 12:40:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2022-07-22 12:40:01,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:01,814 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:01,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 12:40:01,815 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1503435120, now seen corresponding path program 1 times [2022-07-22 12:40:01,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:01,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466779400] [2022-07-22 12:40:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:01,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:02,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 701 proven. 0 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2022-07-22 12:40:02,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:02,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466779400] [2022-07-22 12:40:02,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466779400] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:02,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:02,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:02,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971697122] [2022-07-22 12:40:02,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:02,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:02,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:02,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:02,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:02,016 INFO L87 Difference]: Start difference. First operand 2140 states and 2391 transitions. Second operand has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:02,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:02,577 INFO L93 Difference]: Finished difference Result 4336 states and 4849 transitions. [2022-07-22 12:40:02,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:02,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 520 [2022-07-22 12:40:02,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:02,586 INFO L225 Difference]: With dead ends: 4336 [2022-07-22 12:40:02,586 INFO L226 Difference]: Without dead ends: 2318 [2022-07-22 12:40:02,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:02,589 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 125 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:02,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 17 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2022-07-22 12:40:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 2140. [2022-07-22 12:40:02,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2139 states have (on average 1.0855539971949508) internal successors, (2322), 2139 states have internal predecessors, (2322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2322 transitions. [2022-07-22 12:40:02,627 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2322 transitions. Word has length 520 [2022-07-22 12:40:02,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:02,627 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 2322 transitions. [2022-07-22 12:40:02,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 62.5) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:02,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2322 transitions. [2022-07-22 12:40:02,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2022-07-22 12:40:02,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:02,638 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:02,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 12:40:02,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash -145271439, now seen corresponding path program 2 times [2022-07-22 12:40:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:02,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816186217] [2022-07-22 12:40:02,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:02,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 779 proven. 11 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:02,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:02,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816186217] [2022-07-22 12:40:02,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816186217] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:02,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136100984] [2022-07-22 12:40:02,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 12:40:02,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:02,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:02,908 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) [2022-07-22 12:40:02,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 12:40:03,067 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 12:40:03,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 12:40:03,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:40:03,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 790 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:03,745 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:03,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136100984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:03,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:03,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:40:03,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078451743] [2022-07-22 12:40:03,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:03,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:03,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:03,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:03,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:03,747 INFO L87 Difference]: Start difference. First operand 2140 states and 2322 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:04,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:04,414 INFO L93 Difference]: Finished difference Result 4990 states and 5475 transitions. [2022-07-22 12:40:04,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:04,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 546 [2022-07-22 12:40:04,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:04,424 INFO L225 Difference]: With dead ends: 4990 [2022-07-22 12:40:04,425 INFO L226 Difference]: Without dead ends: 3030 [2022-07-22 12:40:04,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:04,428 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 164 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:04,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 15 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:40:04,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2022-07-22 12:40:04,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2496. [2022-07-22 12:40:04,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.0789579158316633) internal successors, (2692), 2495 states have internal predecessors, (2692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:04,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2692 transitions. [2022-07-22 12:40:04,467 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2692 transitions. Word has length 546 [2022-07-22 12:40:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:04,468 INFO L495 AbstractCegarLoop]: Abstraction has 2496 states and 2692 transitions. [2022-07-22 12:40:04,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:04,469 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2692 transitions. [2022-07-22 12:40:04,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-07-22 12:40:04,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:04,473 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:04,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-07-22 12:40:04,697 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,SelfDestructingSolverStorable7 [2022-07-22 12:40:04,698 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:04,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:04,699 INFO L85 PathProgramCache]: Analyzing trace with hash 823062922, now seen corresponding path program 1 times [2022-07-22 12:40:04,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:04,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543414411] [2022-07-22 12:40:04,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:04,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:04,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:04,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 792 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:04,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:04,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543414411] [2022-07-22 12:40:04,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543414411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:04,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:04,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:04,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60577971] [2022-07-22 12:40:04,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:04,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:04,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:04,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:04,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:04,941 INFO L87 Difference]: Start difference. First operand 2496 states and 2692 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:05,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:05,389 INFO L93 Difference]: Finished difference Result 5702 states and 6216 transitions. [2022-07-22 12:40:05,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:05,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 553 [2022-07-22 12:40:05,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:05,400 INFO L225 Difference]: With dead ends: 5702 [2022-07-22 12:40:05,400 INFO L226 Difference]: Without dead ends: 3386 [2022-07-22 12:40:05,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:05,404 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:05,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2022-07-22 12:40:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3386. [2022-07-22 12:40:05,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.0768094534711965) internal successors, (3645), 3385 states have internal predecessors, (3645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3645 transitions. [2022-07-22 12:40:05,456 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3645 transitions. Word has length 553 [2022-07-22 12:40:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:05,456 INFO L495 AbstractCegarLoop]: Abstraction has 3386 states and 3645 transitions. [2022-07-22 12:40:05,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:05,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3645 transitions. [2022-07-22 12:40:05,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2022-07-22 12:40:05,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:05,462 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:05,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 12:40:05,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:05,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:05,463 INFO L85 PathProgramCache]: Analyzing trace with hash -2111047309, now seen corresponding path program 1 times [2022-07-22 12:40:05,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:05,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028349993] [2022-07-22 12:40:05,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:05,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:05,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 806 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-22 12:40:05,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:05,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028349993] [2022-07-22 12:40:05,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028349993] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:05,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482628555] [2022-07-22 12:40:05,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:05,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:05,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:05,722 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) [2022-07-22 12:40:05,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 12:40:05,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:05,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:40:05,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:05,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2022-07-22 12:40:05,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:05,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482628555] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:05,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:05,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-22 12:40:05,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831027363] [2022-07-22 12:40:05,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:05,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:05,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:05,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:05,955 INFO L87 Difference]: Start difference. First operand 3386 states and 3645 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:06,405 INFO L93 Difference]: Finished difference Result 7126 states and 7749 transitions. [2022-07-22 12:40:06,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:06,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 598 [2022-07-22 12:40:06,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:06,417 INFO L225 Difference]: With dead ends: 7126 [2022-07-22 12:40:06,417 INFO L226 Difference]: Without dead ends: 3920 [2022-07-22 12:40:06,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:06,422 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 142 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:06,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 235 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2022-07-22 12:40:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3742. [2022-07-22 12:40:06,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.079123229083133) internal successors, (4037), 3741 states have internal predecessors, (4037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:06,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4037 transitions. [2022-07-22 12:40:06,489 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4037 transitions. Word has length 598 [2022-07-22 12:40:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:06,490 INFO L495 AbstractCegarLoop]: Abstraction has 3742 states and 4037 transitions. [2022-07-22 12:40:06,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4037 transitions. [2022-07-22 12:40:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-07-22 12:40:06,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:06,496 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:06,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 12:40:06,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:06,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:06,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:06,716 INFO L85 PathProgramCache]: Analyzing trace with hash -932781460, now seen corresponding path program 1 times [2022-07-22 12:40:06,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:06,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33389096] [2022-07-22 12:40:06,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:06,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:06,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 882 proven. 195 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2022-07-22 12:40:06,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:06,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33389096] [2022-07-22 12:40:06,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33389096] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:06,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432204333] [2022-07-22 12:40:06,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:06,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:06,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:06,979 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) [2022-07-22 12:40:06,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 12:40:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:07,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:40:07,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:07,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1219 backedges. 550 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2022-07-22 12:40:07,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:07,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432204333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:07,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:07,639 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-07-22 12:40:07,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542154646] [2022-07-22 12:40:07,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:07,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:07,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:07,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:07,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:07,640 INFO L87 Difference]: Start difference. First operand 3742 states and 4037 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:08,007 INFO L93 Difference]: Finished difference Result 8016 states and 8636 transitions. [2022-07-22 12:40:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:08,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 617 [2022-07-22 12:40:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:08,020 INFO L225 Difference]: With dead ends: 8016 [2022-07-22 12:40:08,020 INFO L226 Difference]: Without dead ends: 4454 [2022-07-22 12:40:08,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 616 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:08,024 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 27 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:08,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 50 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 12:40:08,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2022-07-22 12:40:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 3920. [2022-07-22 12:40:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3920 states, 3919 states have (on average 1.0773156417453431) internal successors, (4222), 3919 states have internal predecessors, (4222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 4222 transitions. [2022-07-22 12:40:08,077 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 4222 transitions. Word has length 617 [2022-07-22 12:40:08,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:08,078 INFO L495 AbstractCegarLoop]: Abstraction has 3920 states and 4222 transitions. [2022-07-22 12:40:08,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 2 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 4222 transitions. [2022-07-22 12:40:08,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 640 [2022-07-22 12:40:08,084 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:08,084 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:08,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 12:40:08,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:08,308 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:08,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:08,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1940762816, now seen corresponding path program 1 times [2022-07-22 12:40:08,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:08,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902924977] [2022-07-22 12:40:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:08,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:08,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902924977] [2022-07-22 12:40:08,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902924977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:08,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:08,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:08,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432292969] [2022-07-22 12:40:08,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:08,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:08,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:08,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:08,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:08,500 INFO L87 Difference]: Start difference. First operand 3920 states and 4222 transitions. Second operand has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:08,908 INFO L93 Difference]: Finished difference Result 9084 states and 9808 transitions. [2022-07-22 12:40:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:08,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 639 [2022-07-22 12:40:08,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:08,922 INFO L225 Difference]: With dead ends: 9084 [2022-07-22 12:40:08,922 INFO L226 Difference]: Without dead ends: 5344 [2022-07-22 12:40:08,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:08,926 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:08,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 51 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:08,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-07-22 12:40:08,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5344. [2022-07-22 12:40:08,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5344 states, 5343 states have (on average 1.0679393599101628) internal successors, (5706), 5343 states have internal predecessors, (5706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5344 states to 5344 states and 5706 transitions. [2022-07-22 12:40:08,992 INFO L78 Accepts]: Start accepts. Automaton has 5344 states and 5706 transitions. Word has length 639 [2022-07-22 12:40:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:08,993 INFO L495 AbstractCegarLoop]: Abstraction has 5344 states and 5706 transitions. [2022-07-22 12:40:08,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 5344 states and 5706 transitions. [2022-07-22 12:40:09,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2022-07-22 12:40:09,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:09,001 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:09,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 12:40:09,001 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:09,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash 749754985, now seen corresponding path program 1 times [2022-07-22 12:40:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:09,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213628443] [2022-07-22 12:40:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:09,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2090 backedges. 1532 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2022-07-22 12:40:09,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:09,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213628443] [2022-07-22 12:40:09,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213628443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:09,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:09,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:09,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392076087] [2022-07-22 12:40:09,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:09,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:09,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:09,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:09,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:09,223 INFO L87 Difference]: Start difference. First operand 5344 states and 5706 transitions. Second operand has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:09,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:09,594 INFO L93 Difference]: Finished difference Result 10508 states and 11231 transitions. [2022-07-22 12:40:09,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:09,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 718 [2022-07-22 12:40:09,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:09,618 INFO L225 Difference]: With dead ends: 10508 [2022-07-22 12:40:09,618 INFO L226 Difference]: Without dead ends: 5344 [2022-07-22 12:40:09,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:09,624 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:09,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 12:40:09,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2022-07-22 12:40:09,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 5166. [2022-07-22 12:40:09,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0648596321393997) internal successors, (5500), 5165 states have internal predecessors, (5500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:09,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5500 transitions. [2022-07-22 12:40:09,692 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5500 transitions. Word has length 718 [2022-07-22 12:40:09,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:09,693 INFO L495 AbstractCegarLoop]: Abstraction has 5166 states and 5500 transitions. [2022-07-22 12:40:09,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:09,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5500 transitions. [2022-07-22 12:40:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 795 [2022-07-22 12:40:09,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:09,703 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:09,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 12:40:09,703 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:09,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1898901820, now seen corresponding path program 1 times [2022-07-22 12:40:09,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:09,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130088241] [2022-07-22 12:40:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 1334 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:10,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130088241] [2022-07-22 12:40:10,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130088241] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:10,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047835791] [2022-07-22 12:40:10,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:10,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:10,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:10,002 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) [2022-07-22 12:40:10,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 12:40:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:10,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:40:10,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 725 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2022-07-22 12:40:10,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:10,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047835791] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:10,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:10,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-07-22 12:40:10,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63852985] [2022-07-22 12:40:10,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:10,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:10,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:10,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:10,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:40:10,331 INFO L87 Difference]: Start difference. First operand 5166 states and 5500 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:10,755 INFO L93 Difference]: Finished difference Result 10686 states and 11422 transitions. [2022-07-22 12:40:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:10,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 794 [2022-07-22 12:40:10,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:10,765 INFO L225 Difference]: With dead ends: 10686 [2022-07-22 12:40:10,765 INFO L226 Difference]: Without dead ends: 5700 [2022-07-22 12:40:10,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:40:10,769 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 81 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:10,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 27 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:10,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-22 12:40:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-07-22 12:40:10,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0626425688717318) internal successors, (6056), 5699 states have internal predecessors, (6056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:10,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 6056 transitions. [2022-07-22 12:40:10,826 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 6056 transitions. Word has length 794 [2022-07-22 12:40:10,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:10,827 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 6056 transitions. [2022-07-22 12:40:10,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:10,828 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 6056 transitions. [2022-07-22 12:40:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2022-07-22 12:40:10,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:10,837 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:10,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 12:40:11,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-22 12:40:11,056 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:11,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1777817371, now seen corresponding path program 1 times [2022-07-22 12:40:11,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:11,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431238070] [2022-07-22 12:40:11,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:11,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:11,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:11,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:11,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431238070] [2022-07-22 12:40:11,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431238070] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:11,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438076311] [2022-07-22 12:40:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:11,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:11,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:11,318 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) [2022-07-22 12:40:11,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 12:40:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:11,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:40:11,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:11,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:11,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 12:40:12,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1919 backedges. 1413 proven. 155 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-07-22 12:40:12,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438076311] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 12:40:12,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 12:40:12,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2022-07-22 12:40:12,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106226147] [2022-07-22 12:40:12,192 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 12:40:12,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 12:40:12,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:12,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 12:40:12,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:12,194 INFO L87 Difference]: Start difference. First operand 5700 states and 6056 transitions. Second operand has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:12,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:12,981 INFO L93 Difference]: Finished difference Result 13356 states and 14210 transitions. [2022-07-22 12:40:12,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 12:40:12,982 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 823 [2022-07-22 12:40:12,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:12,993 INFO L225 Difference]: With dead ends: 13356 [2022-07-22 12:40:12,994 INFO L226 Difference]: Without dead ends: 7836 [2022-07-22 12:40:12,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1648 GetRequests, 1644 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:12,998 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 48 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1084 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:12,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 67 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1084 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 12:40:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7836 states. [2022-07-22 12:40:13,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7836 to 6768. [2022-07-22 12:40:13,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0604403723954485) internal successors, (7176), 6767 states have internal predecessors, (7176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7176 transitions. [2022-07-22 12:40:13,101 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7176 transitions. Word has length 823 [2022-07-22 12:40:13,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:13,102 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7176 transitions. [2022-07-22 12:40:13,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.66666666666666) internal successors, (910), 6 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:13,103 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7176 transitions. [2022-07-22 12:40:13,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2022-07-22 12:40:13,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:13,114 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:13,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-22 12:40:13,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-22 12:40:13,340 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:13,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:13,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1631092303, now seen corresponding path program 1 times [2022-07-22 12:40:13,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:13,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845837093] [2022-07-22 12:40:13,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:13,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:13,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1613 proven. 93 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-07-22 12:40:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:13,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845837093] [2022-07-22 12:40:13,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845837093] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:13,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107845254] [2022-07-22 12:40:13,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:13,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:13,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:13,599 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) [2022-07-22 12:40:13,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 12:40:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:13,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 12:40:13,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:14,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 1706 proven. 0 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2022-07-22 12:40:14,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:14,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107845254] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:14,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:14,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:40:14,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351526085] [2022-07-22 12:40:14,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:14,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:14,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:14,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:14,236 INFO L87 Difference]: Start difference. First operand 6768 states and 7176 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:14,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:14,594 INFO L93 Difference]: Finished difference Result 13534 states and 14361 transitions. [2022-07-22 12:40:14,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:14,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 913 [2022-07-22 12:40:14,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:14,605 INFO L225 Difference]: With dead ends: 13534 [2022-07-22 12:40:14,605 INFO L226 Difference]: Without dead ends: 6946 [2022-07-22 12:40:14,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 916 GetRequests, 912 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:14,612 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:14,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 64 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 12:40:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2022-07-22 12:40:14,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6768. [2022-07-22 12:40:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0613270282252105) internal successors, (7182), 6767 states have internal predecessors, (7182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:14,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7182 transitions. [2022-07-22 12:40:14,691 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7182 transitions. Word has length 913 [2022-07-22 12:40:14,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:14,692 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 7182 transitions. [2022-07-22 12:40:14,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7182 transitions. [2022-07-22 12:40:14,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2022-07-22 12:40:14,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:14,705 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:14,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 12:40:14,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:14,915 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:14,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1246204830, now seen corresponding path program 1 times [2022-07-22 12:40:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:14,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225595240] [2022-07-22 12:40:14,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:14,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:15,197 INFO L134 CoverageAnalysis]: Checked inductivity of 3031 backedges. 2044 proven. 0 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-07-22 12:40:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:15,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225595240] [2022-07-22 12:40:15,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225595240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:15,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:15,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:15,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591766930] [2022-07-22 12:40:15,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:15,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:15,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:15,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:15,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:15,201 INFO L87 Difference]: Start difference. First operand 6768 states and 7182 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:15,560 INFO L93 Difference]: Finished difference Result 13178 states and 14003 transitions. [2022-07-22 12:40:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:15,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 954 [2022-07-22 12:40:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:15,569 INFO L225 Difference]: With dead ends: 13178 [2022-07-22 12:40:15,569 INFO L226 Difference]: Without dead ends: 6590 [2022-07-22 12:40:15,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:15,575 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:15,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 225 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 12:40:15,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6590 states. [2022-07-22 12:40:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6590 to 6590. [2022-07-22 12:40:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6590 states, 6589 states have (on average 1.0538776749127334) internal successors, (6944), 6589 states have internal predecessors, (6944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 6944 transitions. [2022-07-22 12:40:15,646 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 6944 transitions. Word has length 954 [2022-07-22 12:40:15,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:15,647 INFO L495 AbstractCegarLoop]: Abstraction has 6590 states and 6944 transitions. [2022-07-22 12:40:15,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 6944 transitions. [2022-07-22 12:40:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2022-07-22 12:40:15,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:15,659 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 12:40:15,659 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1253897816, now seen corresponding path program 1 times [2022-07-22 12:40:15,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:15,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626562660] [2022-07-22 12:40:15,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:15,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:16,053 INFO L134 CoverageAnalysis]: Checked inductivity of 3651 backedges. 1681 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2022-07-22 12:40:16,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:16,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626562660] [2022-07-22 12:40:16,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626562660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:16,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:16,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:40:16,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53154838] [2022-07-22 12:40:16,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:16,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:40:16,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:16,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:40:16,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:16,057 INFO L87 Difference]: Start difference. First operand 6590 states and 6944 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:16,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:16,613 INFO L93 Difference]: Finished difference Result 12716 states and 13387 transitions. [2022-07-22 12:40:16,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:40:16,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1004 [2022-07-22 12:40:16,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:16,622 INFO L225 Difference]: With dead ends: 12716 [2022-07-22 12:40:16,622 INFO L226 Difference]: Without dead ends: 6056 [2022-07-22 12:40:16,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:16,628 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 93 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:16,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 23 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:16,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-22 12:40:16,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 5878. [2022-07-22 12:40:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.042538710226306) internal successors, (6127), 5877 states have internal predecessors, (6127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:16,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6127 transitions. [2022-07-22 12:40:16,723 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6127 transitions. Word has length 1004 [2022-07-22 12:40:16,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:16,724 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6127 transitions. [2022-07-22 12:40:16,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:16,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6127 transitions. [2022-07-22 12:40:16,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2022-07-22 12:40:16,739 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:16,739 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:16,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 12:40:16,740 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:16,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:16,741 INFO L85 PathProgramCache]: Analyzing trace with hash -387054434, now seen corresponding path program 1 times [2022-07-22 12:40:16,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:16,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400036781] [2022-07-22 12:40:16,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:16,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 295 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2022-07-22 12:40:17,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:17,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400036781] [2022-07-22 12:40:17,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400036781] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:17,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:17,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:17,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967445770] [2022-07-22 12:40:17,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:17,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:17,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:17,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:17,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:17,102 INFO L87 Difference]: Start difference. First operand 5878 states and 6127 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:17,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:17,499 INFO L93 Difference]: Finished difference Result 11418 states and 11907 transitions. [2022-07-22 12:40:17,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:17,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1031 [2022-07-22 12:40:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:17,511 INFO L225 Difference]: With dead ends: 11418 [2022-07-22 12:40:17,511 INFO L226 Difference]: Without dead ends: 5700 [2022-07-22 12:40:17,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:17,517 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 42 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:17,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 17 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:17,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2022-07-22 12:40:17,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5700. [2022-07-22 12:40:17,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5700 states, 5699 states have (on average 1.0414107738199685) internal successors, (5935), 5699 states have internal predecessors, (5935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:17,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5700 states to 5700 states and 5935 transitions. [2022-07-22 12:40:17,587 INFO L78 Accepts]: Start accepts. Automaton has 5700 states and 5935 transitions. Word has length 1031 [2022-07-22 12:40:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:17,587 INFO L495 AbstractCegarLoop]: Abstraction has 5700 states and 5935 transitions. [2022-07-22 12:40:17,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5700 states and 5935 transitions. [2022-07-22 12:40:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2022-07-22 12:40:17,599 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:17,599 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:17,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 12:40:17,600 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:17,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1310024199, now seen corresponding path program 1 times [2022-07-22 12:40:17,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:17,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321346042] [2022-07-22 12:40:17,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:17,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:17,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2476 proven. 72 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-07-22 12:40:17,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:17,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321346042] [2022-07-22 12:40:17,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321346042] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:17,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363799307] [2022-07-22 12:40:17,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:17,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:17,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:17,947 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) [2022-07-22 12:40:17,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 12:40:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:18,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1304 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 12:40:18,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3529 backedges. 2189 proven. 0 refuted. 0 times theorem prover too weak. 1340 trivial. 0 not checked. [2022-07-22 12:40:18,544 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:18,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363799307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:18,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:18,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-22 12:40:18,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682482547] [2022-07-22 12:40:18,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:18,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:18,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:18,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:18,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:18,547 INFO L87 Difference]: Start difference. First operand 5700 states and 5935 transitions. Second operand has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:19,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:19,168 INFO L93 Difference]: Finished difference Result 11932 states and 12434 transitions. [2022-07-22 12:40:19,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:19,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1036 [2022-07-22 12:40:19,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:19,177 INFO L225 Difference]: With dead ends: 11932 [2022-07-22 12:40:19,177 INFO L226 Difference]: Without dead ends: 6412 [2022-07-22 12:40:19,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:19,181 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 119 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:19,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 37 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:40:19,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6412 states. [2022-07-22 12:40:19,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6412 to 5878. [2022-07-22 12:40:19,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0404968521354432) internal successors, (6115), 5877 states have internal predecessors, (6115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:19,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6115 transitions. [2022-07-22 12:40:19,239 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6115 transitions. Word has length 1036 [2022-07-22 12:40:19,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:19,240 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 6115 transitions. [2022-07-22 12:40:19,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 133.25) internal successors, (533), 4 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6115 transitions. [2022-07-22 12:40:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1396 [2022-07-22 12:40:19,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:19,256 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:19,280 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-22 12:40:19,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:19,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash 126987919, now seen corresponding path program 1 times [2022-07-22 12:40:19,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:19,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700336824] [2022-07-22 12:40:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:19,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5983 backedges. 406 proven. 0 refuted. 0 times theorem prover too weak. 5577 trivial. 0 not checked. [2022-07-22 12:40:19,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:19,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700336824] [2022-07-22 12:40:19,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700336824] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:19,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:19,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:19,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285705440] [2022-07-22 12:40:19,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:19,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:19,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:19,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:19,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:19,935 INFO L87 Difference]: Start difference. First operand 5878 states and 6115 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:20,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:20,323 INFO L93 Difference]: Finished difference Result 11576 states and 12049 transitions. [2022-07-22 12:40:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:20,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1395 [2022-07-22 12:40:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:20,329 INFO L225 Difference]: With dead ends: 11576 [2022-07-22 12:40:20,329 INFO L226 Difference]: Without dead ends: 5878 [2022-07-22 12:40:20,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 12:40:20,333 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 145 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:20,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 212 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:20,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-07-22 12:40:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5522. [2022-07-22 12:40:20,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5522 states, 5521 states have (on average 1.0371309545372216) internal successors, (5726), 5521 states have internal predecessors, (5726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:20,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5522 states to 5522 states and 5726 transitions. [2022-07-22 12:40:20,383 INFO L78 Accepts]: Start accepts. Automaton has 5522 states and 5726 transitions. Word has length 1395 [2022-07-22 12:40:20,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:20,384 INFO L495 AbstractCegarLoop]: Abstraction has 5522 states and 5726 transitions. [2022-07-22 12:40:20,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 5522 states and 5726 transitions. [2022-07-22 12:40:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1651 [2022-07-22 12:40:20,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:20,406 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:20,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 12:40:20,407 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:20,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:20,408 INFO L85 PathProgramCache]: Analyzing trace with hash -339858598, now seen corresponding path program 1 times [2022-07-22 12:40:20,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:20,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321775896] [2022-07-22 12:40:20,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:20,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:21,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8594 backedges. 4979 proven. 0 refuted. 0 times theorem prover too weak. 3615 trivial. 0 not checked. [2022-07-22 12:40:21,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:21,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321775896] [2022-07-22 12:40:21,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321775896] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:21,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:21,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:40:21,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500256499] [2022-07-22 12:40:21,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:21,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:40:21,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:21,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:40:21,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:21,232 INFO L87 Difference]: Start difference. First operand 5522 states and 5726 transitions. Second operand has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:22,494 INFO L93 Difference]: Finished difference Result 13905 states and 14473 transitions. [2022-07-22 12:40:22,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:40:22,496 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1650 [2022-07-22 12:40:22,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:22,503 INFO L225 Difference]: With dead ends: 13905 [2022-07-22 12:40:22,503 INFO L226 Difference]: Without dead ends: 8014 [2022-07-22 12:40:22,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:22,507 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 146 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 2243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:22,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 43 Invalid, 2243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 12:40:22,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8014 states. [2022-07-22 12:40:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8014 to 6768. [2022-07-22 12:40:22,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0304418501551649) internal successors, (6973), 6767 states have internal predecessors, (6973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6973 transitions. [2022-07-22 12:40:22,568 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6973 transitions. Word has length 1650 [2022-07-22 12:40:22,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:22,569 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6973 transitions. [2022-07-22 12:40:22,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 93.57142857142857) internal successors, (655), 6 states have internal predecessors, (655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:22,570 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6973 transitions. [2022-07-22 12:40:22,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1707 [2022-07-22 12:40:22,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:22,592 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 10, 10, 10, 10, 9, 8, 8, 7, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:22,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 12:40:22,593 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:22,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:22,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1104275563, now seen corresponding path program 1 times [2022-07-22 12:40:22,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:22,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219347397] [2022-07-22 12:40:22,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:22,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:23,332 INFO L134 CoverageAnalysis]: Checked inductivity of 9627 backedges. 2859 proven. 0 refuted. 0 times theorem prover too weak. 6768 trivial. 0 not checked. [2022-07-22 12:40:23,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:23,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219347397] [2022-07-22 12:40:23,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219347397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:23,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:23,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 12:40:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171660568] [2022-07-22 12:40:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:23,336 INFO L87 Difference]: Start difference. First operand 6768 states and 6973 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:23,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:23,814 INFO L93 Difference]: Finished difference Result 13200 states and 13608 transitions. [2022-07-22 12:40:23,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:23,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1706 [2022-07-22 12:40:23,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:23,819 INFO L225 Difference]: With dead ends: 13200 [2022-07-22 12:40:23,819 INFO L226 Difference]: Without dead ends: 6768 [2022-07-22 12:40:23,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:23,822 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 30 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:23,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 17 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:23,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2022-07-22 12:40:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6768. [2022-07-22 12:40:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 6767 states have (on average 1.0295551943254027) internal successors, (6967), 6767 states have internal predecessors, (6967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:23,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 6967 transitions. [2022-07-22 12:40:23,891 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 6967 transitions. Word has length 1706 [2022-07-22 12:40:23,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:23,892 INFO L495 AbstractCegarLoop]: Abstraction has 6768 states and 6967 transitions. [2022-07-22 12:40:23,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 6967 transitions. [2022-07-22 12:40:23,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1747 [2022-07-22 12:40:23,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:23,936 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:23,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 12:40:23,936 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:23,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1276225934, now seen corresponding path program 1 times [2022-07-22 12:40:23,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:23,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333138935] [2022-07-22 12:40:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:23,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:24,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 2804 proven. 1045 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2022-07-22 12:40:24,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:24,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333138935] [2022-07-22 12:40:24,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333138935] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:24,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174758372] [2022-07-22 12:40:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:24,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:24,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:24,606 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) [2022-07-22 12:40:24,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 12:40:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:24,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2131 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 12:40:25,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 9575 backedges. 3849 proven. 0 refuted. 0 times theorem prover too weak. 5726 trivial. 0 not checked. [2022-07-22 12:40:25,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:25,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174758372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:25,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:25,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 12:40:25,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676731681] [2022-07-22 12:40:25,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:25,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 12:40:25,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 12:40:25,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:25,203 INFO L87 Difference]: Start difference. First operand 6768 states and 6967 transitions. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:25,556 INFO L93 Difference]: Finished difference Result 13712 states and 14111 transitions. [2022-07-22 12:40:25,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 12:40:25,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1746 [2022-07-22 12:40:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:25,561 INFO L225 Difference]: With dead ends: 13712 [2022-07-22 12:40:25,561 INFO L226 Difference]: Without dead ends: 5522 [2022-07-22 12:40:25,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1749 GetRequests, 1745 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 12:40:25,564 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:25,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 225 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 12:40:25,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2022-07-22 12:40:25,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 4988. [2022-07-22 12:40:25,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0200521355524363) internal successors, (5087), 4987 states have internal predecessors, (5087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5087 transitions. [2022-07-22 12:40:25,608 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5087 transitions. Word has length 1746 [2022-07-22 12:40:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 4988 states and 5087 transitions. [2022-07-22 12:40:25,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:25,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5087 transitions. [2022-07-22 12:40:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1818 [2022-07-22 12:40:25,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:25,633 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:25,657 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-22 12:40:25,852 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,SelfDestructingSolverStorable23 [2022-07-22 12:40:25,852 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:25,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:25,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1727618608, now seen corresponding path program 1 times [2022-07-22 12:40:25,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:25,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604814012] [2022-07-22 12:40:25,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:25,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:26,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:26,541 INFO L134 CoverageAnalysis]: Checked inductivity of 10935 backedges. 2784 proven. 0 refuted. 0 times theorem prover too weak. 8151 trivial. 0 not checked. [2022-07-22 12:40:26,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:26,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604814012] [2022-07-22 12:40:26,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604814012] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:26,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:26,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 12:40:26,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687131439] [2022-07-22 12:40:26,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:26,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 12:40:26,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:26,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 12:40:26,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:40:26,544 INFO L87 Difference]: Start difference. First operand 4988 states and 5087 transitions. Second operand has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:27,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:27,087 INFO L93 Difference]: Finished difference Result 6953 states and 7112 transitions. [2022-07-22 12:40:27,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 12:40:27,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1817 [2022-07-22 12:40:27,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:27,092 INFO L225 Difference]: With dead ends: 6953 [2022-07-22 12:40:27,092 INFO L226 Difference]: Without dead ends: 6768 [2022-07-22 12:40:27,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-07-22 12:40:27,094 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 111 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:27,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 20 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:27,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6768 states. [2022-07-22 12:40:27,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6768 to 6056. [2022-07-22 12:40:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0236168455821635) internal successors, (6198), 6055 states have internal predecessors, (6198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:27,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6198 transitions. [2022-07-22 12:40:27,153 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6198 transitions. Word has length 1817 [2022-07-22 12:40:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:27,154 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6198 transitions. [2022-07-22 12:40:27,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.4) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:27,154 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6198 transitions. [2022-07-22 12:40:27,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1988 [2022-07-22 12:40:27,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:27,182 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:27,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 12:40:27,182 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:27,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:27,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1196899044, now seen corresponding path program 1 times [2022-07-22 12:40:27,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:27,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482862685] [2022-07-22 12:40:27,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:27,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:27,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 3559 proven. 812 refuted. 0 times theorem prover too weak. 8374 trivial. 0 not checked. [2022-07-22 12:40:27,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:27,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482862685] [2022-07-22 12:40:27,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482862685] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 12:40:27,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338244286] [2022-07-22 12:40:27,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:27,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 12:40:27,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 12:40:27,861 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) [2022-07-22 12:40:27,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 12:40:28,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:28,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 2415 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 12:40:28,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 12:40:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12745 backedges. 4293 proven. 0 refuted. 0 times theorem prover too weak. 8452 trivial. 0 not checked. [2022-07-22 12:40:30,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 12:40:30,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338244286] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:30,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 12:40:30,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2022-07-22 12:40:30,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102668731] [2022-07-22 12:40:30,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:30,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:40:30,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:30,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:40:30,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:40:30,274 INFO L87 Difference]: Start difference. First operand 6056 states and 6198 transitions. Second operand has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:30,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:30,773 INFO L93 Difference]: Finished difference Result 11803 states and 12085 transitions. [2022-07-22 12:40:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 12:40:30,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1987 [2022-07-22 12:40:30,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:30,777 INFO L225 Difference]: With dead ends: 11803 [2022-07-22 12:40:30,777 INFO L226 Difference]: Without dead ends: 6056 [2022-07-22 12:40:30,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1991 GetRequests, 1983 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-22 12:40:30,780 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 67 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:30,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 25 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-22 12:40:30,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-07-22 12:40:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.022295623451693) internal successors, (6190), 6055 states have internal predecessors, (6190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:30,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6190 transitions. [2022-07-22 12:40:30,826 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6190 transitions. Word has length 1987 [2022-07-22 12:40:30,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:30,827 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6190 transitions. [2022-07-22 12:40:30,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.0) internal successors, (371), 6 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:30,827 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6190 transitions. [2022-07-22 12:40:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2026 [2022-07-22 12:40:30,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:30,856 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:30,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-22 12:40:31,062 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,SelfDestructingSolverStorable25 [2022-07-22 12:40:31,062 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:31,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:31,063 INFO L85 PathProgramCache]: Analyzing trace with hash -331699378, now seen corresponding path program 1 times [2022-07-22 12:40:31,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042236532] [2022-07-22 12:40:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:31,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 13917 backedges. 4560 proven. 0 refuted. 0 times theorem prover too weak. 9357 trivial. 0 not checked. [2022-07-22 12:40:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:31,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042236532] [2022-07-22 12:40:31,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042236532] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:31,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:40:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895383663] [2022-07-22 12:40:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:31,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:40:31,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:31,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:40:31,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:31,996 INFO L87 Difference]: Start difference. First operand 6056 states and 6190 transitions. Second operand has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:32,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:32,610 INFO L93 Difference]: Finished difference Result 11801 states and 12067 transitions. [2022-07-22 12:40:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:40:32,611 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2025 [2022-07-22 12:40:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:32,614 INFO L225 Difference]: With dead ends: 11801 [2022-07-22 12:40:32,614 INFO L226 Difference]: Without dead ends: 6056 [2022-07-22 12:40:32,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:32,618 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 48 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 1281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:32,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 41 Invalid, 1281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 12:40:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6056 states. [2022-07-22 12:40:32,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6056 to 6056. [2022-07-22 12:40:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6056 states, 6055 states have (on average 1.0193228736581337) internal successors, (6172), 6055 states have internal predecessors, (6172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:32,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6056 states to 6056 states and 6172 transitions. [2022-07-22 12:40:32,662 INFO L78 Accepts]: Start accepts. Automaton has 6056 states and 6172 transitions. Word has length 2025 [2022-07-22 12:40:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:32,663 INFO L495 AbstractCegarLoop]: Abstraction has 6056 states and 6172 transitions. [2022-07-22 12:40:32,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.857142857142854) internal successors, (370), 6 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 6056 states and 6172 transitions. [2022-07-22 12:40:32,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2032 [2022-07-22 12:40:32,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:32,689 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 10, 10, 10, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:32,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 12:40:32,690 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:32,691 INFO L85 PathProgramCache]: Analyzing trace with hash -403831971, now seen corresponding path program 1 times [2022-07-22 12:40:32,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:32,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109200308] [2022-07-22 12:40:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:32,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:32,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 13995 backedges. 4584 proven. 0 refuted. 0 times theorem prover too weak. 9411 trivial. 0 not checked. [2022-07-22 12:40:33,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:33,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109200308] [2022-07-22 12:40:33,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109200308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:33,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:33,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 12:40:33,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230817717] [2022-07-22 12:40:33,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:33,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 12:40:33,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:33,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 12:40:33,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:33,542 INFO L87 Difference]: Start difference. First operand 6056 states and 6172 transitions. Second operand has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:34,043 INFO L93 Difference]: Finished difference Result 11629 states and 11856 transitions. [2022-07-22 12:40:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 12:40:34,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2031 [2022-07-22 12:40:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:34,047 INFO L225 Difference]: With dead ends: 11629 [2022-07-22 12:40:34,047 INFO L226 Difference]: Without dead ends: 5878 [2022-07-22 12:40:34,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-22 12:40:34,050 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 79 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:34,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 25 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 12:40:34,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-07-22 12:40:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2022-07-22 12:40:34,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5878 states, 5877 states have (on average 1.0178662582950484) internal successors, (5982), 5877 states have internal predecessors, (5982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 5982 transitions. [2022-07-22 12:40:34,106 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 5982 transitions. Word has length 2031 [2022-07-22 12:40:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:34,107 INFO L495 AbstractCegarLoop]: Abstraction has 5878 states and 5982 transitions. [2022-07-22 12:40:34,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 53.714285714285715) internal successors, (376), 6 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 5982 transitions. [2022-07-22 12:40:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2120 [2022-07-22 12:40:34,142 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 12:40:34,143 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:34,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 12:40:34,143 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 12:40:34,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 12:40:34,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2140269625, now seen corresponding path program 1 times [2022-07-22 12:40:34,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 12:40:34,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694259889] [2022-07-22 12:40:34,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 12:40:34,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 12:40:34,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 12:40:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 14529 backedges. 3210 proven. 0 refuted. 0 times theorem prover too weak. 11319 trivial. 0 not checked. [2022-07-22 12:40:35,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 12:40:35,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694259889] [2022-07-22 12:40:35,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694259889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 12:40:35,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 12:40:35,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 12:40:35,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362766993] [2022-07-22 12:40:35,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 12:40:35,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 12:40:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 12:40:35,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 12:40:35,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:35,132 INFO L87 Difference]: Start difference. First operand 5878 states and 5982 transitions. Second operand has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 12:40:35,610 INFO L93 Difference]: Finished difference Result 5883 states and 5987 transitions. [2022-07-22 12:40:35,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 12:40:35,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2119 [2022-07-22 12:40:35,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 12:40:35,612 INFO L225 Difference]: With dead ends: 5883 [2022-07-22 12:40:35,612 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 12:40:35,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 12:40:35,615 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 88 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 12:40:35,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 15 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 12:40:35,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 12:40:35,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 12:40:35,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:35,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 12:40:35,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2119 [2022-07-22 12:40:35,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 12:40:35,616 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 12:40:35,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 12:40:35,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 12:40:35,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 12:40:35,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 12:40:35,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 12:40:35,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,402 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,403 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2022-07-22 12:40:39,404 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2022-07-22 12:40:39,405 INFO L899 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2022-07-22 12:40:39,406 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,407 INFO L899 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2022-07-22 12:40:39,408 INFO L899 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2022-07-22 12:40:39,409 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2022-07-22 12:40:39,410 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,411 INFO L899 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 131) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2022-07-22 12:40:39,412 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2022-07-22 12:40:39,413 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,414 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2022-07-22 12:40:39,415 INFO L899 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2022-07-22 12:40:39,416 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2022-07-22 12:40:39,417 INFO L899 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,418 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2022-07-22 12:40:39,419 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2022-07-22 12:40:39,420 INFO L899 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 12:40:39,421 INFO L899 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,422 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L895 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse20 (= 7 ~a15~0))) (let ((.cse9 (<= 10 ~a21~0)) (.cse17 (<= 9 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse5 (<= ~a15~0 8)) (.cse10 (<= ~a15~0 7)) (.cse19 (not .cse20))) (let ((.cse3 (let ((.cse24 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse24) 0) (and (<= (+ .cse24 13) 0) (let ((.cse25 (+ ~a12~0 4))) (= .cse25 (* (div .cse25 5) 5))))))) (.cse14 (= ~a21~0 10)) (.cse16 (= ~a15~0 8)) (.cse15 (<= (+ 49 ~a12~0) 0)) (.cse12 (= 5 ~a15~0)) (.cse21 (<= ~a21~0 8)) (.cse1 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse8 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse2 (<= 20 ~a12~0)) (.cse4 (<= 8 ~a15~0)) (.cse23 (= ~a21~0 9)) (.cse13 (or (and .cse0 .cse5 .cse10 .cse9) (and .cse17 .cse0 .cse5 .cse10 .cse19))) (.cse18 (<= ~a21~0 9)) (.cse7 (not (<= (+ ~a12~0 43) 0))) (.cse22 (<= 0 (+ 41 ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse11) (and .cse12 .cse13 .cse14) (and .cse0 (= 7 ~a21~0) .cse15 .cse16) (and .cse17 .cse18 .cse0 .cse10 .cse15) (and .cse8 .cse17 .cse18 .cse0 .cse5 .cse19 .cse7) (and (= ~a21~0 8) .cse0 (<= (+ 44 ~a12~0) 0) .cse20) (and .cse8 .cse0 .cse5 .cse7 .cse9) (and .cse0 (<= 8 ~a21~0) .cse21 .cse3 .cse4) (and .cse13 .cse14 .cse20) (and .cse0 .cse5 .cse6 .cse10 .cse7 .cse22) (and (not .cse8) .cse0 .cse23 .cse20) (and .cse0 .cse5 .cse2 .cse9 .cse16) (and .cse5 .cse6 .cse10 .cse15) (and .cse0 .cse5 .cse6 .cse12 (= ~a21~0 6)) (and .cse0 .cse2 .cse10 .cse21) (and (or (and .cse8 .cse0 .cse1 .cse5 .cse11) (and .cse8 .cse0 .cse5 .cse6 .cse7)) .cse22) (and .cse0 .cse2 (<= ~a12~0 586307) .cse4) (and .cse23 .cse13 (= ~a15~0 6)) (and .cse18 .cse0 .cse5 .cse10 .cse19 .cse7 .cse22))))) [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2022-07-22 12:40:39,423 INFO L899 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L902 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2022-07-22 12:40:39,424 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,425 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,426 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L895 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse20 (= 7 ~a15~0))) (let ((.cse9 (<= 10 ~a21~0)) (.cse17 (<= 9 ~a21~0)) (.cse0 (= ~a24~0 1)) (.cse5 (<= ~a15~0 8)) (.cse10 (<= ~a15~0 7)) (.cse19 (not .cse20))) (let ((.cse3 (let ((.cse24 (div (+ ~a12~0 (- 600066)) 5))) (or (<= (+ 14 .cse24) 0) (and (<= (+ .cse24 13) 0) (let ((.cse25 (+ ~a12~0 4))) (= .cse25 (* (div .cse25 5) 5))))))) (.cse14 (= ~a21~0 10)) (.cse16 (= ~a15~0 8)) (.cse15 (<= (+ 49 ~a12~0) 0)) (.cse12 (= 5 ~a15~0)) (.cse21 (<= ~a21~0 8)) (.cse1 (<= 7 ~a21~0)) (.cse11 (<= ~a21~0 7)) (.cse8 (<= ~a12~0 11)) (.cse6 (<= ~a21~0 6)) (.cse2 (<= 20 ~a12~0)) (.cse4 (<= 8 ~a15~0)) (.cse23 (= ~a21~0 9)) (.cse13 (or (and .cse0 .cse5 .cse10 .cse9) (and .cse17 .cse0 .cse5 .cse10 .cse19))) (.cse18 (<= ~a21~0 9)) (.cse7 (not (<= (+ ~a12~0 43) 0))) (.cse22 (<= 0 (+ 41 ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse6 .cse7) (and .cse8 .cse0 .cse9 .cse4) (and .cse0 .cse1 .cse5 .cse10 .cse11) (and .cse12 .cse13 .cse14) (and .cse0 (= 7 ~a21~0) .cse15 .cse16) (and .cse17 .cse18 .cse0 .cse10 .cse15) (and .cse8 .cse17 .cse18 .cse0 .cse5 .cse19 .cse7) (and (= ~a21~0 8) .cse0 (<= (+ 44 ~a12~0) 0) .cse20) (and .cse8 .cse0 .cse5 .cse7 .cse9) (and .cse0 (<= 8 ~a21~0) .cse21 .cse3 .cse4) (and .cse13 .cse14 .cse20) (and .cse0 .cse5 .cse6 .cse10 .cse7 .cse22) (and (not .cse8) .cse0 .cse23 .cse20) (and .cse0 .cse5 .cse2 .cse9 .cse16) (and .cse5 .cse6 .cse10 .cse15) (and .cse0 .cse5 .cse6 .cse12 (= ~a21~0 6)) (and .cse0 .cse2 .cse10 .cse21) (and (or (and .cse8 .cse0 .cse1 .cse5 .cse11) (and .cse8 .cse0 .cse5 .cse6 .cse7)) .cse22) (and .cse0 .cse2 (<= ~a12~0 586307) .cse4) (and .cse23 .cse13 (= ~a15~0 6)) (and .cse18 .cse0 .cse5 .cse10 .cse19 .cse7 .cse22))))) [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2022-07-22 12:40:39,427 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,428 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,429 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2022-07-22 12:40:39,429 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2022-07-22 12:40:39,429 INFO L899 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2022-07-22 12:40:39,429 INFO L899 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2022-07-22 12:40:39,429 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-07-22 12:40:39,432 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 12:40:39,434 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 12:40:39,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:40:39 BoogieIcfgContainer [2022-07-22 12:40:39,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 12:40:39,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 12:40:39,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 12:40:39,456 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 12:40:39,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:39:55" (3/4) ... [2022-07-22 12:40:39,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 12:40:39,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 12:40:39,476 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-22 12:40:39,477 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 12:40:39,478 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 12:40:39,577 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 12:40:39,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 12:40:39,578 INFO L158 Benchmark]: Toolchain (without parser) took 46003.52ms. Allocated memory was 119.5MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 89.6MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 706.3MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,578 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 12:40:39,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.09ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 71.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.48ms. Allocated memory is still 119.5MB. Free memory was 71.1MB in the beginning and 61.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,579 INFO L158 Benchmark]: Boogie Preprocessor took 114.26ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 61.5MB in the beginning and 134.9MB in the end (delta: -73.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,579 INFO L158 Benchmark]: RCFGBuilder took 1028.10ms. Allocated memory is still 167.8MB. Free memory was 134.9MB in the beginning and 109.9MB in the end (delta: 25.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,580 INFO L158 Benchmark]: TraceAbstraction took 44035.45ms. Allocated memory was 167.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 109.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2022-07-22 12:40:39,580 INFO L158 Benchmark]: Witness Printer took 121.80ms. Allocated memory is still 2.7GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 12:40:39,581 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.09ms. Allocated memory is still 119.5MB. Free memory was 89.4MB in the beginning and 71.1MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.48ms. Allocated memory is still 119.5MB. Free memory was 71.1MB in the beginning and 61.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 114.26ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 61.5MB in the beginning and 134.9MB in the end (delta: -73.3MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1028.10ms. Allocated memory is still 167.8MB. Free memory was 134.9MB in the beginning and 109.9MB in the end (delta: 25.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * TraceAbstraction took 44035.45ms. Allocated memory was 167.8MB in the beginning and 2.7GB in the end (delta: 2.5GB). Free memory was 109.9MB in the beginning and 1.9GB in the end (delta: -1.8GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 121.80ms. Allocated memory is still 2.7GB. Free memory was 1.9GB in the beginning and 1.9GB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 131]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.0s, OverallIterations: 29, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.4s, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2908 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2908 mSDsluCounter, 2541 SdHoareTripleChecker+Invalid, 12.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 1744 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19557 IncrementalHoareTripleChecker+Invalid, 21301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1744 mSolverCounterUnsat, 2287 mSDtfsCounter, 19557 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10330 GetRequests, 10237 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6768occurred in iteration=15, InterpolantAutomatonStates: 119, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 29 MinimizatonAttempts, 6942 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 130 NumberOfFragments, 1051 HoareAnnotationTreeSize, 3 FomulaSimplifications, 9712 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 3 FomulaSimplificationsInter, 30982 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 13.6s InterpolantComputationTime, 38304 NumberOfCodeBlocks, 38304 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 39087 ConstructedInterpolants, 0 QuantifiedInterpolants, 153284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 11752 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 40 InterpolantComputations, 28 PerfectInterpolantSequences, 165112/168285 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) && !(a12 + 43 <= 0))) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((5 == a15 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a21 == 10)) || (((a24 == 1 && 7 == a21) && 49 + a12 <= 0) && a15 == 8)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(7 == a15)) && !(a12 + 43 <= 0))) || (((a21 == 8 && a24 == 1) && 44 + a12 <= 0) && 7 == a15)) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && 10 <= a21)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15)) || ((((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15))) && a21 == 10) && 7 == a15)) || (((((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || (((!(a12 <= 11) && a24 == 1) && a21 == 9) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 5 == a15) && a21 == 6)) || (((a24 == 1 && 20 <= a12) && a15 <= 7) && a21 <= 8)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0))) && 0 <= 41 + a12)) || (((a24 == 1 && 20 <= a12) && a12 <= 586307) && 8 <= a15)) || ((a21 == 9 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a15 == 6)) || ((((((a21 <= 9 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)) && !(a12 + 43 <= 0)) && 0 <= 41 + a12) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((a24 == 1 && 7 <= a21) && 20 <= a12) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && a21 <= 6) && !(a12 + 43 <= 0))) || (((a12 <= 11 && a24 == 1) && 10 <= a21) && 8 <= a15)) || ((((a24 == 1 && 7 <= a21) && a15 <= 8) && a15 <= 7) && a21 <= 7)) || ((5 == a15 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a21 == 10)) || (((a24 == 1 && 7 == a21) && 49 + a12 <= 0) && a15 == 8)) || ((((9 <= a21 && a21 <= 9) && a24 == 1) && a15 <= 7) && 49 + a12 <= 0)) || ((((((a12 <= 11 && 9 <= a21) && a21 <= 9) && a24 == 1) && a15 <= 8) && !(7 == a15)) && !(a12 + 43 <= 0))) || (((a21 == 8 && a24 == 1) && 44 + a12 <= 0) && 7 == a15)) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && !(a12 + 43 <= 0)) && 10 <= a21)) || ((((a24 == 1 && 8 <= a21) && a21 <= 8) && (14 + (a12 + -600066) / 5 <= 0 || ((a12 + -600066) / 5 + 13 <= 0 && a12 + 4 == (a12 + 4) / 5 * 5))) && 8 <= a15)) || ((((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15))) && a21 == 10) && 7 == a15)) || (((((a24 == 1 && a15 <= 8) && a21 <= 6) && a15 <= 7) && !(a12 + 43 <= 0)) && 0 <= 41 + a12)) || (((!(a12 <= 11) && a24 == 1) && a21 == 9) && 7 == a15)) || ((((a24 == 1 && a15 <= 8) && 20 <= a12) && 10 <= a21) && a15 == 8)) || (((a15 <= 8 && a21 <= 6) && a15 <= 7) && 49 + a12 <= 0)) || ((((a24 == 1 && a15 <= 8) && a21 <= 6) && 5 == a15) && a21 == 6)) || (((a24 == 1 && 20 <= a12) && a15 <= 7) && a21 <= 8)) || ((((((a12 <= 11 && a24 == 1) && 7 <= a21) && a15 <= 8) && a21 <= 7) || ((((a12 <= 11 && a24 == 1) && a15 <= 8) && a21 <= 6) && !(a12 + 43 <= 0))) && 0 <= 41 + a12)) || (((a24 == 1 && 20 <= a12) && a12 <= 586307) && 8 <= a15)) || ((a21 == 9 && ((((a24 == 1 && a15 <= 8) && a15 <= 7) && 10 <= a21) || ((((9 <= a21 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)))) && a15 == 6)) || ((((((a21 <= 9 && a24 == 1) && a15 <= 8) && a15 <= 7) && !(7 == a15)) && !(a12 + 43 <= 0)) && 0 <= 41 + a12) RESULT: Ultimate proved your program to be correct! [2022-07-22 12:40:39,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE